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Siwat Sirichai 2019-08-09 09:01:56 +07:00
parent e365b9dbd9
commit 3c47103b39
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122
libraries/Adafruit_MQTT_Library/examples/adafruitio_anon_time_esp8266/adafruitio_anon_time_esp8266.ino Normal file
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/***************************************************
Adafruit MQTT Library ESP8266 Adafruit IO Anonymous Time Query
Must use the latest version of ESP8266 Arduino from:
https://github.com/esp8266/Arduino
Works great with Adafruit's Huzzah ESP board & Feather
----> https://www.adafruit.com/product/2471
----> https://www.adafruit.com/products/2821
Adafruit invests time and resources providing this open source code,
please support Adafruit and open-source hardware by purchasing
products from Adafruit!
Written by Adafruit Industries.
MIT license, all text above must be included in any redistribution
****************************************************/
#include <ESP8266WiFi.h>
#include "Adafruit_MQTT.h"
#include "Adafruit_MQTT_Client.h"
/************************* WiFi Access Point *********************************/
#define WLAN_SSID "network"
#define WLAN_PASS "password"
/************************* Adafruit.io Setup *********************************/
#define AIO_SERVER "io.adafruit.com"
#define AIO_SERVERPORT 8883
WiFiClientSecure client;
Adafruit_MQTT_Client mqtt(&client, AIO_SERVER, AIO_SERVERPORT);
Adafruit_MQTT_Subscribe timefeed = Adafruit_MQTT_Subscribe(&mqtt, "time/seconds");
// set timezone offset from UTC
int timeZone = -4; // UTC - 4 eastern daylight time (nyc)
int interval = 4; // trigger every X hours
int last_min = -1;
void timecallback(uint32_t current) {
// adjust to local time zone
current += (timeZone * 60 * 60);
int curr_hour = (current / 60 / 60) % 24;
int curr_min = (current / 60 ) % 60;
int curr_sec = (current) % 60;
Serial.print("Time: ");
Serial.print(curr_hour); Serial.print(':');
Serial.print(curr_min); Serial.print(':');
Serial.println(curr_sec);
// only trigger on minute change
if(curr_min != last_min) {
last_min = curr_min;
Serial.println("This will print out every minute!");
}
}
void setup() {
Serial.begin(115200);
delay(10);
Serial.print(F("\nAdafruit IO anonymous Time Demo"));
WiFi.begin(WLAN_SSID, WLAN_PASS);
while (WiFi.status() != WL_CONNECTED) {
delay(500);
Serial.print(F("."));
}
Serial.println(F(" WiFi connected."));
timefeed.setCallback(timecallback);
mqtt.subscribe(&timefeed);
}
void loop() {
// Ensure the connection to the MQTT server is alive (this will make the first
// connection and automatically reconnect when disconnected). See the MQTT_connect
// function definition further below.
MQTT_connect();
// wait 10 seconds for subscription messages
// since we have no other tasks in this example.
mqtt.processPackets(10000);
// keep the connection alive
mqtt.ping();
}
// Function to connect and reconnect as necessary to the MQTT server.
// Should be called in the loop function and it will take care if connecting.
void MQTT_connect() {
int8_t ret;
// Stop if already connected.
if (mqtt.connected()) {
return;
}
Serial.print("Connecting to MQTT... ");
uint8_t retries = 3;
while ((ret = mqtt.connect()) != 0) { // connect will return 0 for connected
Serial.println(mqtt.connectErrorString(ret));
Serial.println("Retrying MQTT connection in 5 seconds...");
mqtt.disconnect();
delay(5000); // wait 5 seconds
retries--;
if (retries == 0) {
// basically die and wait for WDT to reset me
while (1);
}
}
Serial.println("MQTT Connected!");
}

155
libraries/Adafruit_MQTT_Library/examples/adafruitio_errors_esp8266/adafruitio_errors_esp8266.ino Normal file
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/***************************************************
Adafruit MQTT Library ESP8266 Example
Must use ESP8266 Arduino from:
https://github.com/esp8266/Arduino
Works great with Adafruit's Huzzah ESP board & Feather
----> https://www.adafruit.com/product/2471
----> https://www.adafruit.com/products/2821
Adafruit invests time and resources providing this open source code,
please support Adafruit and open-source hardware by purchasing
products from Adafruit!
Written by Tony DiCola for Adafruit Industries.
Error examples by Todd Treece for Adafruit Industries.
MIT license, all text above must be included in any redistribution
****************************************************/
#include <ESP8266WiFi.h>
#include "Adafruit_MQTT.h"
#include "Adafruit_MQTT_Client.h"
/************************* WiFi Access Point *********************************/
#define WLAN_SSID "...your SSID..."
#define WLAN_PASS "...your password..."
/************************* Adafruit.io Setup *********************************/
#define AIO_SERVER "io.adafruit.com"
#define AIO_SERVERPORT 1883 // 8883 for MQTTS
#define AIO_USERNAME "...your AIO username (see https://accounts.adafruit.com)..."
#define AIO_KEY "...your AIO key..."
/************ Global State (you don't need to change this!) ******************/
// Create an ESP8266 WiFiClient class to connect to the MQTT server.
WiFiClient client;
// or... use WiFiFlientSecure for SSL
//WiFiClientSecure client;
// Setup the MQTT client class by passing in the WiFi client and MQTT server and login details.
Adafruit_MQTT_Client mqtt(&client, AIO_SERVER, AIO_SERVERPORT, AIO_USERNAME, AIO_KEY);
/****************************** Feeds ***************************************/
// Setup a feed called 'photocell' for publishing.
// Notice MQTT paths for AIO follow the form: <username>/feeds/<feedname>
Adafruit_MQTT_Publish photocell = Adafruit_MQTT_Publish(&mqtt, AIO_USERNAME "/feeds/photocell");
// Setup a feed called 'onoff' for subscribing to changes.
Adafruit_MQTT_Subscribe onoffbutton = Adafruit_MQTT_Subscribe(&mqtt, AIO_USERNAME "/feeds/onoff");
/*************************** Error Reporting *********************************/
Adafruit_MQTT_Subscribe errors = Adafruit_MQTT_Subscribe(&mqtt, AIO_USERNAME "/errors");
Adafruit_MQTT_Subscribe throttle = Adafruit_MQTT_Subscribe(&mqtt, AIO_USERNAME "/throttle");
/*************************** Sketch Code ************************************/
// Bug workaround for Arduino 1.6.6, it seems to need a function declaration
// for some reason (only affects ESP8266, likely an arduino-builder bug).
void MQTT_connect();
void setup() {
Serial.begin(115200);
delay(10);
Serial.println(F("Adafruit MQTT demo"));
// Connect to WiFi access point.
Serial.println(); Serial.println();
Serial.print("Connecting to ");
Serial.println(WLAN_SSID);
WiFi.begin(WLAN_SSID, WLAN_PASS);
while (WiFi.status() != WL_CONNECTED) {
delay(500);
Serial.print(".");
}
Serial.println();
Serial.println("WiFi connected");
Serial.println("IP address: "); Serial.println(WiFi.localIP());
// Setup MQTT subscription for onoff feed
mqtt.subscribe(&onoffbutton);
// Setup MQTT subscriptions for throttle & error messages
mqtt.subscribe(&throttle);
mqtt.subscribe(&errors);
}
uint32_t x=0;
void loop() {
// Ensure the connection to the MQTT server is alive (this will make the first
// connection and automatically reconnect when disconnected). See the MQTT_connect
// function definition further below.
MQTT_connect();
// this is our 'wait for incoming subscription packets' busy subloop
// try to spend your time here
Adafruit_MQTT_Subscribe *subscription;
while ((subscription = mqtt.readSubscription(5000))) {
if (subscription == &onoffbutton) {
Serial.print(F("Got onoff: "));
Serial.println((char *)onoffbutton.lastread);
} else if(subscription == &errors) {
Serial.print(F("ERROR: "));
Serial.println((char *)errors.lastread);
} else if(subscription == &throttle) {
Serial.println((char *)throttle.lastread);
}
}
// Now we can publish stuff!
Serial.print(F("\nSending photocell val "));
Serial.print(x);
Serial.print("...");
if (! photocell.publish(x++)) {
Serial.println(F("Failed"));
} else {
Serial.println(F("OK!"));
}
}
// Function to connect and reconnect as necessary to the MQTT server.
// Should be called in the loop function and it will take care if connecting.
void MQTT_connect() {
int8_t ret;
// Stop if already connected.
if (mqtt.connected()) {
return;
}
Serial.print("Connecting to MQTT... ");
uint8_t retries = 3;
while ((ret = mqtt.connect()) != 0) { // connect will return 0 for connected
Serial.println(mqtt.connectErrorString(ret));
Serial.println("Retrying MQTT connection in 5 seconds...");
mqtt.disconnect();
delay(5000); // wait 5 seconds
retries--;
if (retries == 0) {
// basically die and wait for WDT to reset me
while (1);
}
}
Serial.println("MQTT Connected!");
}

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libraries/Adafruit_MQTT_Library/examples/adafruitio_secure_airlift/adafruitio_secure_airlift.ino Normal file
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/****************************************************************
Adafruit MQTT Library, Adafruit IO SSL/TLS Example for AirLift
Must use the latest version of nina-fw from:
https://github.com/adafruit/nina-fw
Works great with Adafruit AirLift ESP32 Co-Processors!
--> https://www.adafruit.com/product/4201
--> https://www.adafruit.com/product/4116
Adafruit invests time and resources providing this open source code,
please support Adafruit and open-source hardware by purchasing
products from Adafruit!
Written by Brent Rubell for Adafruit Industries.
MIT license, all text above must be included in any redistribution
*******************************************************************/
#include <WiFiNINA.h>
#include <SPI.h>
// For AirLift Breakout/Wing/Shield: Configure the following to match the ESP32 Pins!
#if !defined(SPIWIFI_SS)
// Don't change the names of these #define's! they match the variant ones
#define SPIWIFI SPI
#define SPIWIFI_SS 11 // Chip select pin
#define SPIWIFI_ACK 10 // a.k.a BUSY or READY pin
#define ESP32_RESETN 9 // Reset pin
#define ESP32_GPIO0 -1 // Not connected
#define SET_PINS 1 // Pins were set using this IFNDEF
#endif
#include "Adafruit_MQTT.h"
#include "Adafruit_MQTT_Client.h"
/************************* WiFi Access Point *********************************/
#define WLAN_SSID "WLAN_SSID"
#define WLAN_PASS "WIFI_PASSWORD"
int keyIndex = 0; // your network key Index number (needed only for WEP)
int status = WL_IDLE_STATUS;
/************************* Adafruit.io Setup *********************************/
#define AIO_SERVER "io.adafruit.com"
// Using port 8883 for MQTTS
#define AIO_SERVERPORT 8883
// Adafruit IO Account Configuration
// (to obtain these values, visit https://io.adafruit.com and click on Active Key)
#define AIO_USERNAME "YOUR_ADAFRUIT_IO_USERNAME"
#define AIO_KEY "YOUR_ADAFRUIT_IO_KEY"
/************ Global State (you don't need to change this!) ******************/
// WiFiSSLClient for SSL/TLS support
WiFiSSLClient client;
// Setup the MQTT client class by WLAN_PASSing in the WiFi client and MQTT server and login details.
Adafruit_MQTT_Client mqtt(&client, AIO_SERVER, AIO_SERVERPORT, AIO_USERNAME, AIO_KEY);
/****************************** Feeds ***************************************/
// Setup a feed called 'test' for publishing.
// Notice MQTT paths for AIO follow the form: <username>/feeds/<feedname>
Adafruit_MQTT_Publish test = Adafruit_MQTT_Publish(&mqtt, AIO_USERNAME "/feeds/test");
/*************************** Sketch Code ************************************/
void setup()
{
//Initialize serial and wait for port to open:
Serial.begin(115200);
while (!Serial)
{
; // wait for serial port to connect. Needed for native USB port only
}
// if the AirLift's pins were defined above...
#ifdef SET_PINS
WiFi.setPins(SPIWIFI_SS, SPIWIFI_ACK, ESP32_RESETN, ESP32_GPIO0, &SPIWIFI);
#endif
// check for the wifi module
while (WiFi.status() == WL_NO_MODULE)
{
Serial.println("Communication with WiFi module failed!");
delay(1000);
}
String fv = WiFi.firmwareVersion();
if (fv < "1.0.0")
{
Serial.println("Please upgrade the firmware");
}
// attempt to connect to Wifi network:
Serial.print("Attempting to connect to SSID: ");
Serial.println(WLAN_SSID);
// Connect to WPA/WPA2 network. Change this line if using open or WEP network:
do
{
status = WiFi.begin(WLAN_SSID, WLAN_PASS);
delay(100); // wait until connected
} while (status != WL_CONNECTED);
Serial.println("Connected to wifi");
printWiFiStatus();
}
uint32_t x = 0;
void loop()
{
// Ensure the connection to the MQTT server is alive (this will make the first
// connection and automatically reconnect when disconnected). See the MQTT_connect
// function definition further below.
MQTT_connect();
// Now we can publish stuff!
Serial.print(F("\nSending val "));
Serial.print(x);
Serial.print(F(" to test feed..."));
if (!test.publish(x++))
{
Serial.println(F("Failed"));
}
else
{
Serial.println(F("OK!"));
}
// wait a couple seconds to avoid rate limit
delay(2000);
}
// Function to connect and reconnect as necessary to the MQTT server.
// Should be called in the loop function and it will take care if connecting.
void MQTT_connect()
{
int8_t ret;
// Stop if already connected.
if (mqtt.connected())
{
return;
}
Serial.print("Connecting to MQTT... ");
uint8_t retries = 3;
while ((ret = mqtt.connect()) != 0)
{ // connect will return 0 for connected
Serial.println(mqtt.connectErrorString(ret));
Serial.println("Retrying MQTT connection in 5 seconds...");
mqtt.disconnect();
delay(5000); // wait 5 seconds
retries--;
if (retries == 0)
{
// basically die and wait for WDT to reset me
while (1)
;
}
}
Serial.println("MQTT Connected!");
}
void printWiFiStatus()
{
// print the SSID of the network you're attached to:
Serial.print("SSID: ");
Serial.println(WiFi.SSID());
// print your board's IP address:
IPAddress ip = WiFi.localIP();
Serial.print("IP Address: ");
Serial.println(ip);
// print the received signal strength:
long rssi = WiFi.RSSI();
Serial.print("signal strength (RSSI):");
Serial.print(rssi);
Serial.println(" dBm");
}

135
libraries/Adafruit_MQTT_Library/examples/adafruitio_secure_esp8266/adafruitio_secure_esp8266.ino Normal file
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/***************************************************
Adafruit MQTT Library ESP8266 Adafruit IO SSL/TLS example
Must use the latest version of ESP8266 Arduino from:
https://github.com/esp8266/Arduino
Works great with Adafruit's Huzzah ESP board & Feather
----> https://www.adafruit.com/product/2471
----> https://www.adafruit.com/products/2821
Adafruit invests time and resources providing this open source code,
please support Adafruit and open-source hardware by purchasing
products from Adafruit!
Written by Tony DiCola for Adafruit Industries.
SSL/TLS additions by Todd Treece for Adafruit Industries.
MIT license, all text above must be included in any redistribution
****************************************************/
#include <ESP8266WiFi.h>
#include "Adafruit_MQTT.h"
#include "Adafruit_MQTT_Client.h"
/************************* WiFi Access Point *********************************/
#define WLAN_SSID "WLAN_SSID"
#define WLAN_PASS "WIFI_PASSWORD"
/************************* Adafruit.io Setup *********************************/
#define AIO_SERVER "io.adafruit.com"
// Using port 8883 for MQTTS
#define AIO_SERVERPORT 8883
// Adafruit IO Account Configuration
// (to obtain these values, visit https://io.adafruit.com and click on Active Key)
#define AIO_USERNAME "YOUR_ADAFRUIT_IO_USERNAME"
#define AIO_KEY "YOUR_ADAFRUIT_IO_KEY"
/************ Global State (you don't need to change this!) ******************/
// WiFiFlientSecure for SSL/TLS support
WiFiClientSecure client;
// Setup the MQTT client class by passing in the WiFi client and MQTT server and login details.
Adafruit_MQTT_Client mqtt(&client, AIO_SERVER, AIO_SERVERPORT, AIO_USERNAME, AIO_KEY);
// io.adafruit.com SHA1 fingerprint
static const char *fingerprint PROGMEM = "77 00 54 2D DA E7 D8 03 27 31 23 99 EB 27 DB CB A5 4C 57 18";
/****************************** Feeds ***************************************/
// Setup a feed called 'test' for publishing.
// Notice MQTT paths for AIO follow the form: <username>/feeds/<feedname>
Adafruit_MQTT_Publish test = Adafruit_MQTT_Publish(&mqtt, AIO_USERNAME "/feeds/test");
/*************************** Sketch Code ************************************/
void setup() {
Serial.begin(115200);
delay(10);
Serial.println(F("Adafruit IO MQTTS (SSL/TLS) Example"));
// Connect to WiFi access point.
Serial.println(); Serial.println();
Serial.print("Connecting to ");
Serial.println(WLAN_SSID);
delay(1000);
WiFi.begin(WLAN_SSID, WLAN_PASS);
delay(2000);
while (WiFi.status() != WL_CONNECTED) {
delay(500);
Serial.print(".");
}
Serial.println();
Serial.println("WiFi connected");
Serial.println("IP address: "); Serial.println(WiFi.localIP());
// check the fingerprint of io.adafruit.com's SSL cert
client.setFingerprint(fingerprint);
}
uint32_t x=0;
void loop() {
// Ensure the connection to the MQTT server is alive (this will make the first
// connection and automatically reconnect when disconnected). See the MQTT_connect
// function definition further below.
MQTT_connect();
// Now we can publish stuff!
Serial.print(F("\nSending val "));
Serial.print(x);
Serial.print(F(" to test feed..."));
if (! test.publish(x++)) {
Serial.println(F("Failed"));
} else {
Serial.println(F("OK!"));
}
// wait a couple seconds to avoid rate limit
delay(2000);
}
// Function to connect and reconnect as necessary to the MQTT server.
// Should be called in the loop function and it will take care if connecting.
void MQTT_connect() {
int8_t ret;
// Stop if already connected.
if (mqtt.connected()) {
return;
}
Serial.print("Connecting to MQTT... ");
uint8_t retries = 3;
while ((ret = mqtt.connect()) != 0) { // connect will return 0 for connected
Serial.println(mqtt.connectErrorString(ret));
Serial.println("Retrying MQTT connection in 5 seconds...");
mqtt.disconnect();
delay(5000); // wait 5 seconds
retries--;
if (retries == 0) {
// basically die and wait for WDT to reset me
while (1);
}
}
Serial.println("MQTT Connected!");
}

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libraries/Adafruit_MQTT_Library/examples/adafruitio_time_esp8266/adafruitio_time_esp8266.ino Normal file
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/***************************************************
Adafruit MQTT Library ESP8266 Adafruit IO SSL/TLS example
Must use the latest version of ESP8266 Arduino from:
https://github.com/esp8266/Arduino
Works great with Adafruit's Huzzah ESP board & Feather
----> https://www.adafruit.com/product/2471
----> https://www.adafruit.com/products/2821
Adafruit invests time and resources providing this open source code,
please support Adafruit and open-source hardware by purchasing
products from Adafruit!
Written by Tony DiCola for Adafruit Industries.
Time additions by Todd Treece for Adafruit Industries.
MIT license, all text above must be included in any redistribution
****************************************************/
#include <ESP8266WiFi.h>
#include "Adafruit_MQTT.h"
#include "Adafruit_MQTT_Client.h"
/************************* WiFi Access Point *********************************/
#define WLAN_SSID "network"
#define WLAN_PASS "password"
/************************* Adafruit.io Setup *********************************/
#define AIO_SERVER "io.adafruit.com"
#define AIO_SERVERPORT 8883
#define AIO_USERNAME "user"
#define AIO_KEY "key"
WiFiClientSecure client;
Adafruit_MQTT_Client mqtt(&client, AIO_SERVER, AIO_SERVERPORT, AIO_USERNAME, AIO_USERNAME, AIO_KEY);
Adafruit_MQTT_Subscribe timefeed = Adafruit_MQTT_Subscribe(&mqtt, "time/seconds");
// set timezone offset from UTC
int timeZone = -4; // UTC - 4 eastern daylight time (nyc)
int interval = 4; // trigger every X hours
int hour = 0; // current hour
void timecallback(uint32_t current) {
// stash previous hour
int previous = hour;
// adjust to local time zone
current += (timeZone * 60 * 60);
// calculate current hour
hour = (current / 60 / 60) % 24;
// only trigger on interval
if((hour != previous) && (hour % interval) == 0) {
Serial.println("Run your code here");
}
}
void setup() {
Serial.begin(115200);
delay(10);
Serial.print(F("Adafruit IO Time Demo"));
WiFi.begin(WLAN_SSID, WLAN_PASS);
while (WiFi.status() != WL_CONNECTED) {
delay(500);
Serial.print(F("."));
}
Serial.println(F(" WiFi connected."));
timefeed.setCallback(timecallback);
mqtt.subscribe(&timefeed);
}
void loop() {
// Ensure the connection to the MQTT server is alive (this will make the first
// connection and automatically reconnect when disconnected). See the MQTT_connect
// function definition further below.
MQTT_connect();
// wait 10 seconds for subscription messages
// since we have no other tasks in this example.
mqtt.processPackets(10000);
// keep the connection alive
mqtt.ping();
}
// Function to connect and reconnect as necessary to the MQTT server.
// Should be called in the loop function and it will take care if connecting.
void MQTT_connect() {
int8_t ret;
// Stop if already connected.
if (mqtt.connected()) {
return;
}
Serial.print("Connecting to MQTT... ");
uint8_t retries = 3;
while ((ret = mqtt.connect()) != 0) { // connect will return 0 for connected
Serial.println(mqtt.connectErrorString(ret));
Serial.println("Retrying MQTT connection in 5 seconds...");
mqtt.disconnect();
delay(5000); // wait 5 seconds
retries--;
if (retries == 0) {
// basically die and wait for WDT to reset me
while (1);
}
}
Serial.println("MQTT Connected!");
}

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/***************************************************
Adafruit MQTT Library ESP8266 Example
Must use ESP8266 Arduino from:
https://github.com/esp8266/Arduino
Works great with Adafruit's Huzzah ESP board & Feather
----> https://www.adafruit.com/product/2471
----> https://www.adafruit.com/products/2821
Adafruit invests time and resources providing this open source code,
please support Adafruit and open-source hardware by purchasing
products from Adafruit!
Written by Tony DiCola for Adafruit Industries.
MIT license, all text above must be included in any redistribution
****************************************************/
#include <ESP8266WiFi.h>
#include "Adafruit_MQTT.h"
#include "Adafruit_MQTT_Client.h"
// the on off button feed turns this LED on/off
#define LED 2
// the slider feed sets the PWM output of this pin
#define PWMOUT 12
/************************* WiFi Access Point *********************************/
#define WLAN_SSID "...your SSID..."
#define WLAN_PASS "...your password..."
/************************* Adafruit.io Setup *********************************/
#define AIO_SERVER "io.adafruit.com"
#define AIO_SERVERPORT 1883 // use 8883 for SSL
#define AIO_USERNAME "...your AIO username (see https://accounts.adafruit.com)..."
#define AIO_KEY "...your AIO key..."
/************ Global State (you don't need to change this!) ******************/
// Create an ESP8266 WiFiClient class to connect to the MQTT server.
WiFiClient client;
// or... use WiFiFlientSecure for SSL
//WiFiClientSecure client;
// Setup the MQTT client class by passing in the WiFi client and MQTT server and login details.
Adafruit_MQTT_Client mqtt(&client, AIO_SERVER, AIO_SERVERPORT, AIO_USERNAME, AIO_USERNAME, AIO_KEY);
/****************************** Feeds ***************************************/
// Notice MQTT paths for AIO follow the form: <username>/feeds/<feedname>
Adafruit_MQTT_Subscribe onoffbutton = Adafruit_MQTT_Subscribe(&mqtt, AIO_USERNAME "/feeds/onoff");
Adafruit_MQTT_Subscribe slider = Adafruit_MQTT_Subscribe(&mqtt, AIO_USERNAME "/feeds/slider");
/*************************** Sketch Code ************************************/
// Bug workaround for Arduino 1.6.6, it seems to need a function declaration
// for some reason (only affects ESP8266, likely an arduino-builder bug).
void MQTT_connect();
void setup() {
pinMode(LED, OUTPUT);
pinMode(PWMOUT, OUTPUT);
Serial.begin(115200);
delay(10);
Serial.println(F("Adafruit MQTT demo"));
// Connect to WiFi access point.
Serial.println(); Serial.println();
Serial.print("Connecting to ");
Serial.println(WLAN_SSID);
WiFi.begin(WLAN_SSID, WLAN_PASS);
while (WiFi.status() != WL_CONNECTED) {
delay(500);
Serial.print(".");
}
Serial.println();
Serial.println("WiFi connected");
Serial.println("IP address: "); Serial.println(WiFi.localIP());
// Setup MQTT subscription for onoff & slider feed.
mqtt.subscribe(&onoffbutton);
mqtt.subscribe(&slider);
}
uint32_t x=0;
void loop() {
// Ensure the connection to the MQTT server is alive (this will make the first
// connection and automatically reconnect when disconnected). See the MQTT_connect
// function definition further below.
MQTT_connect();
// this is our 'wait for incoming subscription packets' busy subloop
// try to spend your time here
Adafruit_MQTT_Subscribe *subscription;
while ((subscription = mqtt.readSubscription(5000))) {
// Check if its the onoff button feed
if (subscription == &onoffbutton) {
Serial.print(F("On-Off button: "));
Serial.println((char *)onoffbutton.lastread);
if (strcmp((char *)onoffbutton.lastread, "ON") == 0) {
digitalWrite(LED, LOW);
}
if (strcmp((char *)onoffbutton.lastread, "OFF") == 0) {
digitalWrite(LED, HIGH);
}
}
// check if its the slider feed
if (subscription == &slider) {
Serial.print(F("Slider: "));
Serial.println((char *)slider.lastread);
uint16_t sliderval = atoi((char *)slider.lastread); // convert to a number
analogWrite(PWMOUT, sliderval);
}
}
// ping the server to keep the mqtt connection alive
if(! mqtt.ping()) {
mqtt.disconnect();
}
}
// Function to connect and reconnect as necessary to the MQTT server.
// Should be called in the loop function and it will take care if connecting.
void MQTT_connect() {
int8_t ret;
// Stop if already connected.
if (mqtt.connected()) {
return;
}
Serial.print("Connecting to MQTT... ");
uint8_t retries = 3;
while ((ret = mqtt.connect()) != 0) { // connect will return 0 for connected
Serial.println(mqtt.connectErrorString(ret));
Serial.println("Retrying MQTT connection in 5 seconds...");
mqtt.disconnect();
delay(5000); // wait 5 seconds
retries--;
if (retries == 0) {
// basically die and wait for WDT to reset me
while (1);
}
}
Serial.println("MQTT Connected!");
}

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# Adafruit MQTT Library Arbitrary Data Publish Example
This example illustrates publishing an arbitrary data packet using the Adafruit MQTT library to an MQTT feed which can then be parsed by the included python subscriber client. Possible usage cases include adding metadata (collection time, sensor info etc) to a datapoint.
![alt-text](https://raw.githubusercontent.com/stuthedew/Adafruit_MQTT_Library/Arbitrary_data_publish/examples/mqtt_arbitrary_data/python_subscriber/mqtt_figure.png "Arbitrary data flow diagram")
My motivation for this was wanting to be able to include metadata to a post.
Specifically, I was playing around with a [Teviso RD3024 radiation sensor](http://www.teviso.com/en/products/radiation-sensor-rd3024.htm), and a salvaged Americium radiation source from a smoke detector, at varying distances from the sensor. I wanted a way to associate the collection time, and distance between the source and sensor with the actual radiation reading itself.
---
## Installing and configuring Mosquitto broker (minimal working setup):
####_Installing on Raspberry Pi/Linux:_
```bash
sudo apt-get install mosquitto
cd /etc/mosquitto/
#See "Configuring Mosquitto Broker below"
```
####_Installing On a Mac:_
```bash
brew install mosquitto
cd /usr/local/etc/mosquitto
#See "Configuring Mosquitto Broker below"
```
---
####Configuring Mosquitto broker
```bash
sudo nano mosquitto.conf
```
Now we have to enable a password file to correctly interface with the Adafruit MQTT library. Scroll about two thirds of the way down until you see:
```bash
# -----------------------------------------------------------------
# Default authentication and topic access control
# -----------------------------------------------------------------
```
You should see `#password_file` about a paragraph after that.
Change
```bash
#password_file
```
To
```bash
password_file pwfile
```
Now `ctrl-x` to save and exit.
You're almost done! We just have to create and populate the password file we just configured. The default user info is:
* **Arduino Subscriber:**
* Username: TestUser
* Password: TestUser
* **Python Subscriber:**
* Username: TestPy
* Password: TestPy
```bash
touch pwfile #create the password file
mosquitto_passwd pwfile TestUser #Enter and confirm password when prompted
mosquitto_passwd pwfile TestPy #Enter and confirm password when prompted
```
####Running Mosquitto broker
Now run Mosquitto broker to allow Arduino publisher and Python subscriber to communicate
```bash
mosquitto
```
---
## Using Example Python Subscriber:
####Installing Python subscriber
Install dependencies if you haven't already
```bash
cd ../Adafruit_MQTT_Library/examples/mqtt_arbitrary_buffer/python_subscriber
pip install -r requirements.txt
```
####Installing Python subscriber
Run python script with default values and watch your parsed data print out.
```bash
python subscriber.py #Add -h flag to see modifiable options
```
Assuming that the Mosquitto broker is running in the background and the Adafruit_MQTT client (Arduino) is publishing, you should see the example data print out every 10 seconds.
```bash
MQTT: Connection successful
Connection successful
Subscribed to /feeds/arb_packet
Received char Array: "Hello!", val1: -4533, val2: 73102, val3: 3354...
Received char Array: "Hello!", val1: -4533, val2: 83611, val3: 3354...
Received char Array: "Hello!", val1: -4533, val2: 94115, val3: 3354...
```

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/***************************************************
Adafruit MQTT Library Arbitrary Data Example
Must use ESP8266 Arduino from:
https://github.com/esp8266/Arduino
Works great with Adafruit's Huzzah ESP board & Feather
----> https://www.adafruit.com/product/2471
----> https://www.adafruit.com/products/2821
Adafruit invests time and resources providing this open source code,
please support Adafruit and open-source hardware by purchasing
products from Adafruit!
Written by Stuart Feichtinger
Modifed from the mqtt_esp8266 example written by Tony DiCola for Adafruit Industries.
MIT license, all text above must be included in any redistribution
****************************************************/
#include <ESP8266WiFi.h>
#include "Adafruit_MQTT.h"
#include "Adafruit_MQTT_Client.h"
/************************* WiFi Access Point *********************************/
#define WLAN_SSID "...your SSID..."
#define WLAN_PASS "...your password..."
/************************* Adafruit.io Setup *********************************/
#define ARB_SERVER "...host computer ip address..."
#define ARB_SERVERPORT 1883 // use 8883 for SSL
#define ARB_USERNAME "TestUser"
#define ARB_PW "TestUser"
/************ Global State (you don't need to change this!) ******************/
// Create an ESP8266 WiFiClient class to connect to the MQTT server.
WiFiClient client;
// or... use WiFiFlientSecure for SSL
//WiFiClientSecure client;
// Setup the MQTT client class by passing in the WiFi client and MQTT server and login details.
Adafruit_MQTT_Client mqtt(&client, ARB_SERVER, ARB_SERVERPORT, ARB_USERNAME, ARB_PW);
/****************************** Feeds ***************************************/
// Setup a feed called 'arb_packet' for publishing.
// Notice MQTT paths for AIO follow the form: <username>/feeds/<feedname>
#define ARB_FEED "/feeds/arb_packet"
Adafruit_MQTT_Publish ap = Adafruit_MQTT_Publish(&mqtt, ARB_FEED);
// Arbitrary Payload
// Union allows for easier interaction of members in struct form with easy publishing
// of "raw" bytes
typedef union{
//Customize struct with whatever variables/types you like.
struct __attribute__((__packed__)){ // packed to eliminate padding for easier parsing.
char charAry[10];
int16_t val1;
unsigned long val2;
uint16_t val3;
}s;
uint8_t raw[sizeof(s)]; // For publishing
/*
// Alternate Option with anonymous struct, but manual byte count:
struct __attribute__((__packed__)){ // packed to eliminate padding for easier parsing.
char charAry[10]; // 10 x 1 byte = 10 bytes
int16_t val1; // 1 x 2 bytes = 2 bytes
unsigned long val2; // 1 x 4 bytes = 4 bytes
uint16_t val3; // 1 x 2 bytes = 2 bytes
-------------------
TOTAL = 18 bytes
};
uint8_t raw[18]; // For publishing
*/
} packet_t;
/*************************** Sketch Code ************************************/
// Bug workaround for Arduino 1.6.6, it seems to need a function declaration
// for some reason (only affects ESP8266, likely an arduino-builder bug).
void MQTT_connect();
void setup() {
Serial.begin(115200);
delay(10);
Serial.println(F("Adafruit MQTT demo"));
// Connect to WiFi access point.
Serial.println(); Serial.println();
Serial.print(F("Connecting to "));
Serial.println(WLAN_SSID);
WiFi.begin(WLAN_SSID, WLAN_PASS);
while (WiFi.status() != WL_CONNECTED) {
delay(500);
Serial.print(F("."));
}
Serial.println();
Serial.println(F("WiFi connected"));
Serial.println(F("IP address: ")); Serial.println(WiFi.localIP());
}
packet_t arbPac;
const char strVal[] PROGMEM = "Hello!";
void loop() {
// Ensure the connection to the MQTT server is alive (this will make the first
// connection and automatically reconnect when disconnected). See the MQTT_connect
// function definition further below.
MQTT_connect();
//Update arbitrary packet values
strcpy_P(arbPac.s.charAry, strVal);
arbPac.s.val1 = -4533;
arbPac.s.val2 = millis();
arbPac.s.val3 = 3354;
/*
// Alternate Union with anonymous struct
// (see union declaration above)
strcpy_P(arbPac.charAry, strVal);
arbPac.val1 = -4533;
arbPac.val2 = millis();
arbPac.val3 = 3354;
*/
if (! ap.publish(arbPac.raw, sizeof(packet_t)))
Serial.println(F("Publish Failed."));
else {
Serial.println(F("Publish Success!"));
delay(500);
}
delay(10000);
// ping the server to keep the mqtt connection alive
// NOT required if you are publishing once every KEEPALIVE seconds
/*
if(! mqtt.ping()) {
mqtt.disconnect();
}
*/
}
// Function to connect and reconnect as necessary to the MQTT server.
// Should be called in the loop function and it will take care if connecting.
void MQTT_connect() {
int8_t ret;
// Stop if already connected.
if (mqtt.connected()) {
return;
}
Serial.print(F("Connecting to MQTT... "));
uint8_t retries = 3;
while ((ret = mqtt.connect()) != 0) { // connect will return 0 for connected
Serial.println(mqtt.connectErrorString(ret));
Serial.println(F("Retrying MQTT connection in 5 seconds..."));
mqtt.disconnect();
delay(5000); // wait 5 seconds
retries--;
if (retries == 0) {
// basically die and wait for WDT to reset me
while (1);
}
}
Serial.println(F("MQTT Connected!"));
}

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paho-mqtt>=1.1

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'''MQTT subscriber for Adafruit MQTT library mqtt_arbitrary_buffer example'''
import paho.mqtt.client as mqtt
import argparse
import struct
import array
import sys
return_str =[
"Connection successful",
"incorrect protocol version",
"invalid client identifier",
"server unavailable",
"bad username or password",
"not authorised"
]
args = None
# The callback for when the client receives a CONNACK response from the server.
def on_connect(client, userdata, rc):
"""callback function on connect. Subscribes or exits depending on outcome"""
print("MQTT: "),
print(return_str[rc])
if(rc > 1):
print("Connection refused - " + return_str[rc])
sys.exit(rc)
# Subscribing in on_connect() means that if we lose the connection and
# reconnect then subscriptions will be renewed.
else:
print(return_str[rc])
client.subscribe(args.topic)
print("Subscribed to {}".format(args.topic))
def on_disconnect(client, userdata, rc):
"""Callback for disconnect"""
if rc != 0:
print("Unexpected disconnection.")
client.reconnect()
# The callback for when a PUBLISH message is received from the server.
def on_message(client, userdata, msg):
try:
pMsg = parseMsg(msg.payload)
print("Received char Array: \"{}\", val1: {}, val2: {}, val3: {}...".format(pMsg[0], pMsg[1], pMsg[2], pMsg[3]))
except Exception as err:
print err
def argBegin():
parser = argparse.ArgumentParser(description='MQTT subscriber for Adafruit MQTT library mqtt_arbitrary_buffer example')
parser.add_argument("--host", default="localhost", help='mqtt host to connect to. Defaults to localhost.')
parser.add_argument("-p", "--port", default=1883, help='network port to connect to. Defaults to 1883.')
parser.add_argument("-t", "--topic", nargs='*', default="/feeds/arb_packet", help="mqtt topic to subscribe to. May be repeated multiple times.")
parser.add_argument("-u", "--username", default="testPy", help="provide a username (requires MQTT 3.1 broker)")
parser.add_argument("-P", "--password", default="testPy", help="provide a password (requires MQTT 3.1 broker)")
parser.add_argument("-k", "--keepalive", default=60, help="keep alive in seconds for this client. Defaults to 60.")
return parser.parse_args()
def parseMsg(payload):
"""Parses C struct from MQTT publisher Adafruit MQTT client to Python list"""
arr = array.array('B', payload) #convert python list to C-like array of unsigned char (B)
parsedStruct = struct.Struct('< 10s h L H') #define struct template (see below)
'''
Format of Struct from Adafruit MQTT client, Arduino, etc:
Adafruit MQTT client == Little endian (<)
Var NAME | C TYPE (python symbol) | size of member x bytes
-------------------------------------------------------------------
"charAry" | uchar (s) | 10s x 1 = 10 bytes
"val1" | int16 / short (h) | 1h x 2 = 2 bytes
"val2" | unsigned long (L) | 1L x 4 = 4 bytes
"val3" | uint16/unsigned short(H)| 1H x 2 = 2 bytes
------------------------------------------------------------------
Total packet size = | 18 bytes |
See Section 7.3.2 of Python struct module documentation for complete format list
https://docs.python.org/2/library/struct.html
'''
charAry, val1, val2, val3 = parsedStruct.unpack_from(arr) #convert byte array to formatted struct
charAry = charAry.rstrip(' \t\r\n\0') #remove trailing white space from buffer
return charAry, val1, val2, val3
def main():
"""Wait for incoming message published by Adafruit MQTT client"""
global args
args = argBegin()
client = mqtt.Client()
client.on_connect = on_connect
client.on_message = on_message
client.username_pw_set(args.username, args.password)
client.connect(args.host, args.port, args.keepalive)
# Blocking call that processes network traffic, dispatches callbacks and
# handles reconnecting.
# Other loop*() functions are available that give a threaded interface and a
# manual interface.
client.loop_forever()
if __name__ == '__main__':
sys.exit(main())

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/***************************************************
Adafruit MQTT Library ESP8266 Example
Must use ESP8266 Arduino from:
https://github.com/esp8266/Arduino
Works great with Adafruit's Huzzah ESP board & Feather
----> https://www.adafruit.com/product/2471
----> https://www.adafruit.com/products/2821
Adafruit invests time and resources providing this open source code,
please support Adafruit and open-source hardware by purchasing
products from Adafruit!
Written by Tony DiCola for Adafruit Industries.
MIT license, all text above must be included in any redistribution
****************************************************/
#include <ESP8266WiFi.h>
#include "Adafruit_MQTT.h"
#include "Adafruit_MQTT_Client.h"
/************************* WiFi Access Point *********************************/
#define WLAN_SSID "...your SSID..."
#define WLAN_PASS "...your password..."
/************************* Adafruit.io Setup *********************************/
#define AIO_SERVER "io.adafruit.com"
#define AIO_SERVERPORT 1883 // use 8883 for SSL
#define AIO_USERNAME "...your AIO username (see https://accounts.adafruit.com)..."
#define AIO_KEY "...your AIO key..."
/************ Global State (you don't need to change this!) ******************/
// Create an ESP8266 WiFiClient class to connect to the MQTT server.
WiFiClient client;
// or... use WiFiFlientSecure for SSL
//WiFiClientSecure client;
// Setup the MQTT client class by passing in the WiFi client and MQTT server and login details.
Adafruit_MQTT_Client mqtt(&client, AIO_SERVER, AIO_SERVERPORT, AIO_USERNAME, AIO_KEY);
/****************************** Feeds ***************************************/
// Setup a feed called 'photocell' for publishing.
// Notice MQTT paths for AIO follow the form: <username>/feeds/<feedname>
Adafruit_MQTT_Publish photocell = Adafruit_MQTT_Publish(&mqtt, AIO_USERNAME "/feeds/photocell");
// Setup a feed called 'onoff' for subscribing to changes.
Adafruit_MQTT_Subscribe onoffbutton = Adafruit_MQTT_Subscribe(&mqtt, AIO_USERNAME "/feeds/onoff");
/*************************** Sketch Code ************************************/
// Bug workaround for Arduino 1.6.6, it seems to need a function declaration
// for some reason (only affects ESP8266, likely an arduino-builder bug).
void MQTT_connect();
void setup() {
Serial.begin(115200);
delay(10);
Serial.println(F("Adafruit MQTT demo"));
// Connect to WiFi access point.
Serial.println(); Serial.println();
Serial.print("Connecting to ");
Serial.println(WLAN_SSID);
WiFi.begin(WLAN_SSID, WLAN_PASS);
while (WiFi.status() != WL_CONNECTED) {
delay(500);
Serial.print(".");
}
Serial.println();
Serial.println("WiFi connected");
Serial.println("IP address: "); Serial.println(WiFi.localIP());
// Setup MQTT subscription for onoff feed.
mqtt.subscribe(&onoffbutton);
}
uint32_t x=0;
void loop() {
// Ensure the connection to the MQTT server is alive (this will make the first
// connection and automatically reconnect when disconnected). See the MQTT_connect
// function definition further below.
MQTT_connect();
// this is our 'wait for incoming subscription packets' busy subloop
// try to spend your time here
Adafruit_MQTT_Subscribe *subscription;
while ((subscription = mqtt.readSubscription(5000))) {
if (subscription == &onoffbutton) {
Serial.print(F("Got: "));
Serial.println((char *)onoffbutton.lastread);
}
}
// Now we can publish stuff!
Serial.print(F("\nSending photocell val "));
Serial.print(x);
Serial.print("...");
if (! photocell.publish(x++)) {
Serial.println(F("Failed"));
} else {
Serial.println(F("OK!"));
}
// ping the server to keep the mqtt connection alive
// NOT required if you are publishing once every KEEPALIVE seconds
/*
if(! mqtt.ping()) {
mqtt.disconnect();
}
*/
}
// Function to connect and reconnect as necessary to the MQTT server.
// Should be called in the loop function and it will take care if connecting.
void MQTT_connect() {
int8_t ret;
// Stop if already connected.
if (mqtt.connected()) {
return;
}
Serial.print("Connecting to MQTT... ");
uint8_t retries = 3;
while ((ret = mqtt.connect()) != 0) { // connect will return 0 for connected
Serial.println(mqtt.connectErrorString(ret));
Serial.println("Retrying MQTT connection in 5 seconds...");
mqtt.disconnect();
delay(5000); // wait 5 seconds
retries--;
if (retries == 0) {
// basically die and wait for WDT to reset me
while (1);
}
}
Serial.println("MQTT Connected!");
}

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/***************************************************
Adafruit MQTT Library ESP8266 Example
Must use ESP8266 Arduino from:
https://github.com/esp8266/Arduino
Works great with Adafruit's Huzzah ESP board:
----> https://www.adafruit.com/product/2471
Adafruit invests time and resources providing this open source code,
please support Adafruit and open-source hardware by purchasing
products from Adafruit!
Written by Tony DiCola for Adafruit Industries.
MIT license, all text above must be included in any redistribution
****************************************************/
#include <ESP8266WiFi.h>
#include "Adafruit_MQTT.h"
#include "Adafruit_MQTT_Client.h"
/************************* WiFi Access Point *********************************/
#define WLAN_SSID "network"
#define WLAN_PASS "password"
/************************* Adafruit.io Setup *********************************/
#define AIO_SERVER "io.adafruit.com"
#define AIO_SERVERPORT 1883
#define AIO_USERNAME "user"
#define AIO_KEY "key"
/************ Global State (you don't need to change this!) ******************/
// Create an ESP8266 WiFiClient class to connect to the MQTT server.
WiFiClient client;
// Setup the MQTT client class by passing in the WiFi client and MQTT server and login details.
Adafruit_MQTT_Client mqtt(&client, AIO_SERVER, AIO_SERVERPORT, AIO_USERNAME, AIO_USERNAME, AIO_KEY);
/****************************** Feeds ***************************************/
// Setup a feed called 'time' for subscribing to current time
Adafruit_MQTT_Subscribe timefeed = Adafruit_MQTT_Subscribe(&mqtt, "time/seconds");
// Setup a feed called 'slider' for subscribing to changes on the slider
Adafruit_MQTT_Subscribe slider = Adafruit_MQTT_Subscribe(&mqtt, AIO_USERNAME "/feeds/slider", MQTT_QOS_1);
// Setup a feed called 'onoff' for subscribing to changes to the button
Adafruit_MQTT_Subscribe onoffbutton = Adafruit_MQTT_Subscribe(&mqtt, AIO_USERNAME "/feeds/onoff", MQTT_QOS_1);
/*************************** Sketch Code ************************************/
int sec;
int min;
int hour;
int timeZone = -4; // utc-4 eastern daylight time (nyc)
void timecallback(uint32_t current) {
// adjust to local time zone
current += (timeZone * 60 * 60);
// calculate current time
sec = current % 60;
current /= 60;
min = current % 60;
current /= 60;
hour = current % 24;
// print hour
if(hour == 0 || hour == 12)
Serial.print("12");
if(hour < 12)
Serial.print(hour);
else
Serial.print(hour - 12);
// print mins
Serial.print(":");
if(min < 10) Serial.print("0");
Serial.print(min);
// print seconds
Serial.print(":");
if(sec < 10) Serial.print("0");
Serial.print(sec);
if(hour < 12)
Serial.println(" am");
else
Serial.println(" pm");
}
void slidercallback(double x) {
Serial.print("Hey we're in a slider callback, the slider value is: ");
Serial.println(x);
}
void onoffcallback(char *data, uint16_t len) {
Serial.print("Hey we're in a onoff callback, the button value is: ");
Serial.println(data);
}
void setup() {
Serial.begin(115200);
delay(10);
Serial.println(F("Adafruit MQTT demo"));
// Connect to WiFi access point.
Serial.println(); Serial.println();
Serial.print("Connecting to ");
Serial.println(WLAN_SSID);
WiFi.begin(WLAN_SSID, WLAN_PASS);
while (WiFi.status() != WL_CONNECTED) {
delay(500);
Serial.print(".");
}
Serial.println();
Serial.println("WiFi connected");
Serial.println("IP address: "); Serial.println(WiFi.localIP());
timefeed.setCallback(timecallback);
slider.setCallback(slidercallback);
onoffbutton.setCallback(onoffcallback);
// Setup MQTT subscription for time feed.
mqtt.subscribe(&timefeed);
mqtt.subscribe(&slider);
mqtt.subscribe(&onoffbutton);
}
uint32_t x=0;
void loop() {
// Ensure the connection to the MQTT server is alive (this will make the first
// connection and automatically reconnect when disconnected). See the MQTT_connect
// function definition further below.
MQTT_connect();
// this is our 'wait for incoming subscription packets and callback em' busy subloop
// try to spend your time here:
mqtt.processPackets(10000);
// ping the server to keep the mqtt connection alive
// NOT required if you are publishing once every KEEPALIVE seconds
if(! mqtt.ping()) {
mqtt.disconnect();
}
}
// Function to connect and reconnect as necessary to the MQTT server.
// Should be called in the loop function and it will take care if connecting.
void MQTT_connect() {
int8_t ret;
// Stop if already connected.
if (mqtt.connected()) {
return;
}
Serial.print("Connecting to MQTT... ");
uint8_t retries = 3;
while ((ret = mqtt.connect()) != 0) { // connect will return 0 for connected
Serial.println(mqtt.connectErrorString(ret));
Serial.println("Retrying MQTT connection in 10 seconds...");
mqtt.disconnect();
delay(10000); // wait 10 seconds
retries--;
if (retries == 0) {
// basically die and wait for WDT to reset me
while (1);
}
}
Serial.println("MQTT Connected!");
}

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/***************************************************
Adafruit MQTT Library Ethernet Example
Adafruit invests time and resources providing this open source code,
please support Adafruit and open-source hardware by purchasing
products from Adafruit!
Written by Alec Moore
Derived from the code written by Limor Fried/Ladyada for Adafruit Industries.
MIT license, all text above must be included in any redistribution
****************************************************/
#include <SPI.h>
#include "Adafruit_MQTT.h"
#include "Adafruit_MQTT_Client.h"
#include <Ethernet.h>
#include <EthernetClient.h>
#include <Dns.h>
#include <Dhcp.h>
/************************* Ethernet Client Setup *****************************/
byte mac[] = {0xDE, 0xAD, 0xBE, 0xEF, 0xFE, 0xED};
//Uncomment the following, and set to a valid ip if you don't have dhcp available.
//IPAddress iotIP (192, 168, 0, 42);
//Uncomment the following, and set to your preference if you don't have automatic dns.
//IPAddress dnsIP (8, 8, 8, 8);
//If you uncommented either of the above lines, make sure to change "Ethernet.begin(mac)" to "Ethernet.begin(mac, iotIP)" or "Ethernet.begin(mac, iotIP, dnsIP)"
/************************* Adafruit.io Setup *********************************/
#define AIO_SERVER "io.adafruit.com"
#define AIO_SERVERPORT 1883
#define AIO_USERNAME "...your AIO username (see https://accounts.adafruit.com)..."
#define AIO_KEY "...your AIO key..."
/************ Global State (you don't need to change this!) ******************/
//Set up the ethernet client
EthernetClient client;
Adafruit_MQTT_Client mqtt(&client, AIO_SERVER, AIO_SERVERPORT, AIO_USERNAME, AIO_KEY);
// You don't need to change anything below this line!
#define halt(s) { Serial.println(F( s )); while(1); }
/****************************** Feeds ***************************************/
// Setup a feed called 'photocell' for publishing.
// Notice MQTT paths for AIO follow the form: <username>/feeds/<feedname>
Adafruit_MQTT_Publish photocell = Adafruit_MQTT_Publish(&mqtt, AIO_USERNAME "/feeds/photocell");
// Setup a feed called 'onoff' for subscribing to changes.
Adafruit_MQTT_Subscribe onoffbutton = Adafruit_MQTT_Subscribe(&mqtt, AIO_USERNAME "/feeds/onoff");
/*************************** Sketch Code ************************************/
void setup() {
Serial.begin(115200);
Serial.println(F("Adafruit MQTT demo"));
// Initialise the Client
Serial.print(F("\nInit the Client..."));
Ethernet.begin(mac);
delay(1000); //give the ethernet a second to initialize
mqtt.subscribe(&onoffbutton);
}
uint32_t x=0;
void loop() {
// Ensure the connection to the MQTT server is alive (this will make the first
// connection and automatically reconnect when disconnected). See the MQTT_connect
// function definition further below.
MQTT_connect();
// this is our 'wait for incoming subscription packets' busy subloop
Adafruit_MQTT_Subscribe *subscription;
while ((subscription = mqtt.readSubscription(1000))) {
if (subscription == &onoffbutton) {
Serial.print(F("Got: "));
Serial.println((char *)onoffbutton.lastread);
}
}
// Now we can publish stuff!
Serial.print(F("\nSending photocell val "));
Serial.print(x);
Serial.print("...");
if (! photocell.publish(x++)) {
Serial.println(F("Failed"));
} else {
Serial.println(F("OK!"));
}
// ping the server to keep the mqtt connection alive
if(! mqtt.ping()) {
mqtt.disconnect();
}
}
// Function to connect and reconnect as necessary to the MQTT server.
// Should be called in the loop function and it will take care if connecting.
void MQTT_connect() {
int8_t ret;
// Stop if already connected.
if (mqtt.connected()) {
return;
}
Serial.print("Connecting to MQTT... ");
while ((ret = mqtt.connect()) != 0) { // connect will return 0 for connected
Serial.println(mqtt.connectErrorString(ret));
Serial.println("Retrying MQTT connection in 5 seconds...");
mqtt.disconnect();
delay(5000); // wait 5 seconds
}
Serial.println("MQTT Connected!");
}

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#include <Adafruit_SleepyDog.h>
#include <SoftwareSerial.h>
#include "Adafruit_FONA.h"
#define halt(s) { Serial.println(F( s )); while(1); }
extern Adafruit_FONA fona;
extern SoftwareSerial fonaSS;
boolean FONAconnect(const __FlashStringHelper *apn, const __FlashStringHelper *username, const __FlashStringHelper *password) {
Watchdog.reset();
Serial.println(F("Initializing FONA....(May take 3 seconds)"));
fonaSS.begin(4800); // if you're using software serial
if (! fona.begin(fonaSS)) { // can also try fona.begin(Serial1)
Serial.println(F("Couldn't find FONA"));
return false;
}
fonaSS.println("AT+CMEE=2");
Serial.println(F("FONA is OK"));
Watchdog.reset();
Serial.println(F("Checking for network..."));
while (fona.getNetworkStatus() != 1) {
delay(500);
}
Watchdog.reset();
delay(5000); // wait a few seconds to stabilize connection
Watchdog.reset();
fona.setGPRSNetworkSettings(apn, username, password);
Serial.println(F("Disabling GPRS"));
fona.enableGPRS(false);
Watchdog.reset();
delay(5000); // wait a few seconds to stabilize connection
Watchdog.reset();
Serial.println(F("Enabling GPRS"));
if (!fona.enableGPRS(true)) {
Serial.println(F("Failed to turn GPRS on"));
return false;
}
Watchdog.reset();
return true;
}

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/***************************************************
Adafruit MQTT Library FONA Example
Designed specifically to work with the Adafruit FONA
----> http://www.adafruit.com/products/1946
----> http://www.adafruit.com/products/1963
----> http://www.adafruit.com/products/2468
----> http://www.adafruit.com/products/2542
These cellular modules use TTL Serial to communicate, 2 pins are
required to interface.
Adafruit invests time and resources providing this open source code,
please support Adafruit and open-source hardware by purchasing
products from Adafruit!
Written by Limor Fried/Ladyada for Adafruit Industries.
MIT license, all text above must be included in any redistribution
****************************************************/
#include <Adafruit_SleepyDog.h>
#include <SoftwareSerial.h>
#include "Adafruit_FONA.h"
#include "Adafruit_MQTT.h"
#include "Adafruit_MQTT_FONA.h"
/*************************** FONA Pins ***********************************/
// Default pins for Feather 32u4 FONA
#define FONA_RX 9
#define FONA_TX 8
#define FONA_RST 4
SoftwareSerial fonaSS = SoftwareSerial(FONA_TX, FONA_RX);
Adafruit_FONA fona = Adafruit_FONA(FONA_RST);
/************************* WiFi Access Point *********************************/
// Optionally configure a GPRS APN, username, and password.
// You might need to do this to access your network's GPRS/data
// network. Contact your provider for the exact APN, username,
// and password values. Username and password are optional and
// can be removed, but APN is required.
#define FONA_APN ""
#define FONA_USERNAME ""
#define FONA_PASSWORD ""
/************************* Adafruit.io Setup *********************************/
#define AIO_SERVER "io.adafruit.com"
#define AIO_SERVERPORT 1883
#define AIO_USERNAME "...your AIO username (see https://accounts.adafruit.com)..."
#define AIO_KEY "...your AIO key..."
/************ Global State (you don't need to change this!) ******************/
// Setup the FONA MQTT class by passing in the FONA class and MQTT server and login details.
Adafruit_MQTT_FONA mqtt(&fona, AIO_SERVER, AIO_SERVERPORT, AIO_USERNAME, AIO_KEY);
// You don't need to change anything below this line!
#define halt(s) { Serial.println(F( s )); while(1); }
// FONAconnect is a helper function that sets up the FONA and connects to
// the GPRS network. See the fonahelper.cpp tab above for the source!
boolean FONAconnect(const __FlashStringHelper *apn, const __FlashStringHelper *username, const __FlashStringHelper *password);
/****************************** Feeds ***************************************/
// Setup a feed called 'photocell' for publishing.
// Notice MQTT paths for AIO follow the form: <username>/feeds/<feedname>
Adafruit_MQTT_Publish photocell = Adafruit_MQTT_Publish(&mqtt, AIO_USERNAME "/feeds/photocell");
// Setup a feed called 'onoff' for subscribing to changes.
Adafruit_MQTT_Subscribe onoffbutton = Adafruit_MQTT_Subscribe(&mqtt, AIO_USERNAME "/feeds/onoff");
/*************************** Sketch Code ************************************/
// How many transmission failures in a row we're willing to be ok with before reset
uint8_t txfailures = 0;
#define MAXTXFAILURES 3
void setup() {
while (!Serial);
// Watchdog is optional!
//Watchdog.enable(8000);
Serial.begin(115200);
Serial.println(F("Adafruit FONA MQTT demo"));
mqtt.subscribe(&onoffbutton);
Watchdog.reset();
delay(5000); // wait a few seconds to stabilize connection
Watchdog.reset();
// Initialise the FONA module
while (! FONAconnect(F(FONA_APN), F(FONA_USERNAME), F(FONA_PASSWORD))) {
Serial.println("Retrying FONA");
}
Serial.println(F("Connected to Cellular!"));
Watchdog.reset();
delay(5000); // wait a few seconds to stabilize connection
Watchdog.reset();
}
uint32_t x=0;
void loop() {
// Make sure to reset watchdog every loop iteration!
Watchdog.reset();
// Ensure the connection to the MQTT server is alive (this will make the first
// connection and automatically reconnect when disconnected). See the MQTT_connect
// function definition further below.
MQTT_connect();
Watchdog.reset();
// Now we can publish stuff!
Serial.print(F("\nSending photocell val "));
Serial.print(x);
Serial.print("...");
if (! photocell.publish(x++)) {
Serial.println(F("Failed"));
txfailures++;
} else {
Serial.println(F("OK!"));
txfailures = 0;
}
Watchdog.reset();
// this is our 'wait for incoming subscription packets' busy subloop
Adafruit_MQTT_Subscribe *subscription;
while ((subscription = mqtt.readSubscription(5000))) {
if (subscription == &onoffbutton) {
Serial.print(F("Got: "));
Serial.println((char *)onoffbutton.lastread);
}
}
// ping the server to keep the mqtt connection alive, only needed if we're not publishing
//if(! mqtt.ping()) {
// Serial.println(F("MQTT Ping failed."));
//}
}
// Function to connect and reconnect as necessary to the MQTT server.
// Should be called in the loop function and it will take care if connecting.
void MQTT_connect() {
int8_t ret;
// Stop if already connected.
if (mqtt.connected()) {
return;
}
Serial.print("Connecting to MQTT... ");
while ((ret = mqtt.connect()) != 0) { // connect will return 0 for connected
Serial.println(mqtt.connectErrorString(ret));
Serial.println("Retrying MQTT connection in 5 seconds...");
mqtt.disconnect();
delay(5000); // wait 5 seconds
}
Serial.println("MQTT Connected!");
}

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/***************************************************
Adafruit MQTT Library WINC1500 Example
Adafruit invests time and resources providing this open source code,
please support Adafruit and open-source hardware by purchasing
products from Adafruit!
Written by Limor Fried/Ladyada for Adafruit Industries.
MIT license, all text above must be included in any redistribution
****************************************************/
#include <SPI.h>
#include "Adafruit_MQTT.h"
#include "Adafruit_MQTT_Client.h"
#include <WiFi101.h>
/************************* WiFI Setup *****************************/
#define WINC_CS 8
#define WINC_IRQ 7
#define WINC_RST 4
#define WINC_EN 2 // or, tie EN to VCC
char ssid[] = "yournetwork"; // your network SSID (name)
char pass[] = "yourpassword"; // your network password (use for WPA, or use as key for WEP)
int keyIndex = 0; // your network key Index number (needed only for WEP)
int status = WL_IDLE_STATUS;
/************************* Adafruit.io Setup *********************************/
#define AIO_SERVER "io.adafruit.com"
#define AIO_SERVERPORT 1883
#define AIO_USERNAME "adafruitiousername"
#define AIO_KEY "adafruitiokey"
/************ Global State (you don't need to change this!) ******************/
//Set up the wifi client
WiFiClient client;
Adafruit_MQTT_Client mqtt(&client, AIO_SERVER, AIO_SERVERPORT, AIO_USERNAME, AIO_KEY);
// You don't need to change anything below this line!
#define halt(s) { Serial.println(F( s )); while(1); }
/****************************** Feeds ***************************************/
// Setup a feed called 'photocell' for publishing.
// Notice MQTT paths for AIO follow the form: <username>/feeds/<feedname>
Adafruit_MQTT_Publish photocell = Adafruit_MQTT_Publish(&mqtt, AIO_USERNAME "/feeds/photocell");
// Setup a feed called 'onoff' for subscribing to changes.
Adafruit_MQTT_Subscribe onoffbutton = Adafruit_MQTT_Subscribe(&mqtt, AIO_USERNAME "/feeds/onoff");
/*************************** Sketch Code ************************************/
#define LEDPIN 13
void setup() {
WiFi.setPins(WINC_CS, WINC_IRQ, WINC_RST, WINC_EN);
while (!Serial);
Serial.begin(115200);
Serial.println(F("Adafruit MQTT demo for WINC1500"));
// Initialise the Client
Serial.print(F("\nInit the WiFi module..."));
// check for the presence of the breakout
if (WiFi.status() == WL_NO_SHIELD) {
Serial.println("WINC1500 not present");
// don't continue:
while (true);
}
Serial.println("ATWINC OK!");
pinMode(LEDPIN, OUTPUT);
mqtt.subscribe(&onoffbutton);
}
uint32_t x=0;
void loop() {
// Ensure the connection to the MQTT server is alive (this will make the first
// connection and automatically reconnect when disconnected). See the MQTT_connect
// function definition further below.
MQTT_connect();
// this is our 'wait for incoming subscription packets' busy subloop
Adafruit_MQTT_Subscribe *subscription;
while ((subscription = mqtt.readSubscription(5000))) {
if (subscription == &onoffbutton) {
Serial.print(F("Got: "));
Serial.println((char *)onoffbutton.lastread);
if (0 == strcmp((char *)onoffbutton.lastread, "OFF")) {
digitalWrite(LEDPIN, LOW);
}
if (0 == strcmp((char *)onoffbutton.lastread, "ON")) {
digitalWrite(LEDPIN, HIGH);
}
}
}
// Now we can publish stuff!
Serial.print(F("\nSending photocell val "));
Serial.print(x);
Serial.print("...");
if (! photocell.publish(x++)) {
Serial.println(F("Failed"));
} else {
Serial.println(F("OK!"));
}
}
// Function to connect and reconnect as necessary to the MQTT server.
// Should be called in the loop function and it will take care if connecting.
void MQTT_connect() {
int8_t ret;
// attempt to connect to Wifi network:
while (WiFi.status() != WL_CONNECTED) {
Serial.print("Attempting to connect to SSID: ");
Serial.println(ssid);
// Connect to WPA/WPA2 network. Change this line if using open or WEP network:
status = WiFi.begin(ssid, pass);
// wait 10 seconds for connection:
uint8_t timeout = 10;
while (timeout && (WiFi.status() != WL_CONNECTED)) {
timeout--;
delay(1000);
}
}
// Stop if already connected.
if (mqtt.connected()) {
return;
}
Serial.print("Connecting to MQTT... ");
while ((ret = mqtt.connect()) != 0) { // connect will return 0 for connected
Serial.println(mqtt.connectErrorString(ret));
Serial.println("Retrying MQTT connection in 5 seconds...");
mqtt.disconnect();
delay(5000); // wait 5 seconds
}
Serial.println("MQTT Connected!");
}

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/***************************************************
Adafruit MQTT Library Arduino Yun Example
Make sure your Arduino Yun is connected to a WiFi access point which
has internet access. Also note this sketch uses the Console class
for debug output so make sure to connect to the Yun over WiFi and
open the serial monitor to see the console output.
Works great with the Arduino Yun:
----> https://www.adafruit.com/products/1498
Adafruit invests time and resources providing this open source code,
please support Adafruit and open-source hardware by purchasing
products from Adafruit!
Written by Tony DiCola for Adafruit Industries.
MIT license, all text above must be included in any redistribution
****************************************************/
#include <Bridge.h>
#include <Console.h>
#include <BridgeClient.h>
#include "Adafruit_MQTT.h"
#include "Adafruit_MQTT_Client.h"
/************************* Adafruit.io Setup *********************************/
#define AIO_SERVER "io.adafruit.com"
#define AIO_SERVERPORT 1883
#define AIO_USERNAME "...your AIO username (see https://accounts.adafruit.com)..."
#define AIO_KEY "...your AIO key..."
/************ Global State (you don't need to change this!) ******************/
// Create a BridgeClient instance to communicate using the Yun's bridge & Linux OS.
BridgeClient client;
// Setup the MQTT client class by passing in the WiFi client and MQTT server and login details.
Adafruit_MQTT_Client mqtt(&client, AIO_SERVER, AIO_SERVERPORT, AIO_USERNAME, AIO_KEY);
/****************************** Feeds ***************************************/
// Setup a feed called 'photocell' for publishing.
// Notice MQTT paths for AIO follow the form: <username>/feeds/<feedname>
Adafruit_MQTT_Publish photocell = Adafruit_MQTT_Publish(&mqtt, AIO_USERNAME "/feeds/photocell");
// Setup a feed called 'onoff' for subscribing to changes.
Adafruit_MQTT_Subscribe onoffbutton = Adafruit_MQTT_Subscribe(&mqtt, AIO_USERNAME "/feeds/onoff");
/*************************** Sketch Code ************************************/
void setup() {
Bridge.begin();
Console.begin();
Console.println(F("Adafruit MQTT demo"));
// Setup MQTT subscription for onoff feed.
mqtt.subscribe(&onoffbutton);
}
uint32_t x=0;
void loop() {
// Ensure the connection to the MQTT server is alive (this will make the first
// connection and automatically reconnect when disconnected). See the MQTT_connect
// function definition further below.
MQTT_connect();
// this is our 'wait for incoming subscription packets' busy subloop
Adafruit_MQTT_Subscribe *subscription;
while ((subscription = mqtt.readSubscription(1000))) {
if (subscription == &onoffbutton) {
Console.print(F("Got: "));
Console.println((char *)onoffbutton.lastread);
}
}
// Now we can publish stuff!
Console.print(F("\nSending photocell val "));
Console.print(x);
Console.print("...");
if (! photocell.publish(x++)) {
Console.println(F("Failed"));
} else {
Console.println(F("OK!"));
}
// ping the server to keep the mqtt connection alive
if(! mqtt.ping()) {
Console.println(F("MQTT Ping failed."));
}
delay(1000);
}
// Function to connect and reconnect as necessary to the MQTT server.
// Should be called in the loop function and it will take care if connecting.
void MQTT_connect() {
int8_t ret;
// Stop if already connected.
if (mqtt.connected()) {
return;
}
Console.print("Connecting to MQTT... ");
while ((ret = mqtt.connect()) != 0) { // connect will return 0 for connected
Console.println(mqtt.connectErrorString(ret));
Console.println("Retrying MQTT connection in 5 seconds...");
mqtt.disconnect();
delay(5000); // wait 5 seconds
}
Console.println("MQTT Connected!");
}