add iot-core support for analog expansion card

src/espmega_iot_core.cpp

@@ -92,23 +92,43 @@ char AC_ROOM_TEMPERATURE_TOPIC[75];
 char AC_HUMIDITY_TOPIC[75];
 #endif
 
+#ifdef ENABLE_ANALOG_MODULE
+#define DAC_COUNT 4
+#define ADC_COUNT 8
+bool dac_states[DAC_COUNT];
+uint16_t dac_values[DAC_COUNT];
+uint16_t adc_values[ADC_COUNT];
+bool adc_report_enable[ADC_COUNT];
+
+char ADC_COMMAND_TOPIC[75];
+char ADC_STATE_TOPIC[75];
+char ADC_REPORT_TOPIC[75];
+char DAC_SET_STATE_TOPIC[75];
+char DAC_SET_VALUE_TOPIC[75];
+char DAC_STATE_TOPIC[75];
+char DAC_VALUE_TOPIC[75];
+#endif
+
 // EEPROM ADDRESS
-#define EEPROM_ADDRESS_AC_MODE 0         // 01bytes
+#define EEPROM_ADDRESS_AC_MODE 0            // 01bytes
-#define EEPROM_ADDRESS_AC_TEMPERATURE 1  // 01bytes
+#define EEPROM_ADDRESS_AC_TEMPERATURE 1     // 01bytes
-#define EEPROM_ADDRESS_AC_FAN_SPEED 2    // 01bytes
+#define EEPROM_ADDRESS_AC_FAN_SPEED 2       // 01bytes
-#define EEPROM_ADDRESS_PWM_STATE 3       // 16bytes, thru 18
+#define EEPROM_ADDRESS_PWM_STATE 3          // 16bytes, thru 18
-#define EEPROM_ADDRESS_PWM_VALUE 19      // 32bytes, thru 50
+#define EEPROM_ADDRESS_PWM_VALUE 19         // 32bytes, thru 50
-#define EEPROM_ADDRESS_HOSTNAME 65       // 15bytes, thru 79
+#define EEPROM_ADDRESS_HOSTNAME 65          // 15bytes, thru 79
-#define EEPROM_ADDRESS_TOPIC 80          // 20bytes, thru 99
+#define EEPROM_ADDRESS_TOPIC 80             // 20bytes, thru 99
-#define EEPROM_ADDRESS_IP 100            // 04bytes, thru 103
+#define EEPROM_ADDRESS_IP 100               // 04bytes, thru 103
-#define EEPROM_ADDRESS_SUBNET 104        // 04bytes, thru 107
+#define EEPROM_ADDRESS_SUBNET 104           // 04bytes, thru 107
-#define EEPROM_ADDRESS_GATEWAY 108       // 04bytes, thru 111
+#define EEPROM_ADDRESS_GATEWAY 108          // 04bytes, thru 111
-#define EEPROM_ADDRESS_DNS 112           // 04bytes, thru 115
+#define EEPROM_ADDRESS_DNS 112              // 04bytes, thru 115
-#define EEPROM_ADDRESS_MQTT_SERVER 116   // 04bytes, thru 119
+#define EEPROM_ADDRESS_MQTT_SERVER 116      // 04bytes, thru 119
-#define EEPROM_ADDRESS_MQTT_PORT 120     // 02bytes, thru 121
+#define EEPROM_ADDRESS_MQTT_PORT 120        // 02bytes, thru 121
-#define EEPROM_ADDRESS_MQTT_USERNAME 122 // 32bytes, thru 153
+#define EEPROM_ADDRESS_MQTT_USERNAME 122    // 32bytes, thru 153
-#define EEPROM_ADDRESS_MQTT_PASSWORD 154 // 32bytes, thru 185
+#define EEPROM_ADDRESS_MQTT_PASSWORD 154    // 32bytes, thru 185
-#define EEPROM_ADDRESS_MQTT_USEAUTH 186  // 1bytes
+#define EEPROM_ADDRESS_MQTT_USEAUTH 186     // 1bytes
+#define EEPROM_ADDRESS_ADC_REPORT_STATE 187 // 8bytes, thru 194
+#define EEPROM_ADDRESS_DAC_STATE 195        // 4bytes, thru 198
+#define EEPROM_ADDRESS_DAC_VALUE 199        // 8bytes, thru 206
 
 char PWM_STATE_TOPIC[75];
 char PWM_VALUE_TOPIC[75];
@@ -125,7 +145,8 @@ Thread mqtt_reconnector = Thread();
 Thread environment_reporter = Thread();
 Thread eeprom_pwm_updater = Thread();
 Thread user_timer_tick = Thread();
-StaticThreadController<4> thread_controller(&mqtt_reconnector, &environment_reporter, &eeprom_pwm_updater, &user_timer_tick);
+Thread analog_handler = Thread();
+StaticThreadController<5> thread_controller(&mqtt_reconnector, &environment_reporter, &eeprom_pwm_updater, &user_timer_tick, &analog_handler);
 
 #ifdef ENABLE_INTERNAL_LCD
 Thread top_bar_updater = Thread();
@@ -144,12 +165,12 @@ void setup()
 #endif
   Serial.println("ESPMega R3 Initializing");
   ESPMega_begin();
-  #ifdef OVERCLOCK_FM2
+#ifdef OVERCLOCK_FM2
   Wire.setClock(1000000);
-  #endif
+#endif
-  #ifdef OVERCLOCK_FM
+#ifdef OVERCLOCK_FM
   Wire.setClock(400000);
-  #endif
+#endif
   io_begin();
   eeprom_retrieve_init();
   user_pre_init();
@@ -297,6 +318,30 @@ void eeprom_retrieve_init()
   strcat(PWM_VALUE_TOPIC, "/pwm/00/value");
   memcpy(INPUTS_TOPIC, MQTT_BASE_TOPIC, 20);
   strcat(INPUTS_TOPIC, "/input/00");
+#ifdef ENABLE_ANALOG_MODULE
+  memcpy(ADC_COMMAND_TOPIC, MQTT_BASE_TOPIC, 20);
+  strcat(ADC_COMMAND_TOPIC, "/adc/00/set/state");
+  memcpy(ADC_STATE_TOPIC, MQTT_BASE_TOPIC, 20);
+  strcat(ADC_STATE_TOPIC, "/adc/00/state");
+  memcpy(ADC_REPORT_TOPIC, MQTT_BASE_TOPIC, 20);
+  strcat(ADC_REPORT_TOPIC, "/adc/00/report");
+  memcpy(DAC_SET_STATE_TOPIC, MQTT_BASE_TOPIC, 20);
+  strcat(DAC_SET_STATE_TOPIC, "/dac/00/set/state");
+  memcpy(DAC_SET_VALUE_TOPIC, MQTT_BASE_TOPIC, 20);
+  strcat(DAC_SET_VALUE_TOPIC, "/dac/00/set/value");
+  memcpy(DAC_STATE_TOPIC, MQTT_BASE_TOPIC, 20);
+  strcat(DAC_STATE_TOPIC, "/dac/00/state");
+  memcpy(DAC_VALUE_TOPIC, MQTT_BASE_TOPIC, 20);
+  strcat(DAC_VALUE_TOPIC, "/dac/00/value");
+  ESPMega_FRAM.read(EEPROM_ADDRESS_ADC_REPORT_STATE, (uint8_t *)adc_report_enable, 8);
+  ESPMega_FRAM.read(EEPROM_ADDRESS_DAC_STATE, (uint8_t *)dac_states, 4);
+  ESPMega_FRAM.read(EEPROM_ADDRESS_DAC_VALUE, (uint8_t *)dac_values, 8);
+  for (int i = 0; i < DAC_COUNT; i++)
+  {
+    dac_set_state(i, dac_states[i]);
+    dac_set_value(i, dac_values[i]);
+  }
+#endif
 }
 
 #ifdef ENABLE_WEBUI
@@ -572,6 +617,23 @@ void mqtt_subscribe()
   mqtt.subscribe(AC_SET_MODE_TOPIC);
 #endif
   mqtt.subscribe(STATE_REQUEST_TOPIC);
+#ifdef ENABLE_ANALOG_MODULE
+  for (int i = 0; i < ADC_COUNT; i++)
+  {
+    ADC_COMMAND_TOPIC[base_topic_length + 4] = ((i - i % 10) / 10) + '0';
+    ADC_COMMAND_TOPIC[base_topic_length + 5] = (i % 10) + '0';
+    mqtt.subscribe(ADC_COMMAND_TOPIC);
+  }
+  for (int i = 0; i < DAC_COUNT; i++)
+  {
+    DAC_SET_STATE_TOPIC[base_topic_length + 4] = ((i - i % 10) / 10) + '0';
+    DAC_SET_STATE_TOPIC[base_topic_length + 5] = (i % 10) + '0';
+    DAC_SET_VALUE_TOPIC[base_topic_length + 4] = ((i - i % 10) / 10) + '0';
+    DAC_SET_VALUE_TOPIC[base_topic_length + 5] = (i % 10) + '0';
+    mqtt.subscribe(DAC_SET_STATE_TOPIC);
+    mqtt.subscribe(DAC_SET_VALUE_TOPIC);
+  }
+#endif
 }
 
 /**
@@ -597,6 +659,20 @@ void mqtt_callback(char *topic, byte *payload, unsigned int length)
   {
     pwm_value_callback(topic_trim, topic_length, payload_nt, length);
   }
+#ifdef ENABLE_ANALOG_MODULE
+  else if ((!strncmp(topic_trim, "/adc/", 5)) && !strncmp(topic_trim + 7, "/set/state", 10))
+  {
+    adc_set_state_callback(topic_trim, topic_length, payload_nt, length);
+  }
+  else if ((!strncmp(topic_trim, "/dac/", 5)) && !strncmp(topic_trim + 7, "/set/state", 10))
+  {
+    dac_set_state_callback(topic_trim, topic_length, payload_nt, length);
+  }
+  else if ((!strncmp(topic_trim, "/dac/", 5)) && !strncmp(topic_trim + 7, "/set/value", 10))
+  {
+    dac_set_value_callback(topic_trim, topic_length, payload_nt, length);
+  }
+#endif
   else if (!strcmp(topic, STATE_REQUEST_TOPIC))
   {
     state_request_callback();
@@ -628,6 +704,10 @@ void thread_initialization()
   eeprom_pwm_updater.setInterval(1000);
   user_timer_tick.onRun(timer_tick_callback);
   user_timer_tick.setInterval(15000);
+#ifdef ENABLE_ANALOG_MODULE
+  analog_handler.onRun(adc_loop);
+  analog_handler.setInterval(ANALOG_REPORTING_INTERVAL);
+#endif
 }
 
 /**
@@ -1747,4 +1827,223 @@ void check_boot_reset()
   {
     factory_reset();
   }
-}
+}
+
+#ifdef ENABLE_ANALOG_MODULE
+/**
+ * Enables the ADC reporting for the specified ID.
+ *
+ * @param id The ID of the ADC to enable reporting for.
+ */
+void enable_adc(int id)
+{
+  adc_report_enable[id] = true;
+  ESPMega_FRAM.write8(EEPROM_ADDRESS_ADC_REPORT_STATE + id, 1);
+}
+/**
+ * @brief Disables the ADC reporting for the specified ID.
+ *
+ * This function sets the adc_report_enable flag to false for the specified ID and writes the state to the EEPROM.
+ *
+ * @param id The ID of the ADC to disable reporting for.
+ */
+void disable_adc(int id)
+{
+  adc_report_enable[id] = false;
+  ESPMega_FRAM.write8(EEPROM_ADDRESS_ADC_REPORT_STATE + id, 0);
+}
+/**
+ * @brief Updates the ADC value for the specified ID if ADC reporting is enabled.
+ * 
+ * @param id The ID of the ADC channel.
+ */
+void adc_update(int id)
+{
+  if (adc_report_enable[id])
+  {
+    adc_values[id] = ESPMega_analogRead(id);
+  }
+}
+
+/**
+ * @brief Updates the ADC value for the specified ID, do so even if reporting is disabled..
+ * 
+ * @param id The ID of the ADC pin.
+ */
+void adc_update_force(int id)
+{
+  adc_values[id] = ESPMega_analogRead(id);
+}
+
+
+/**
+ * @brief Updates all ADC channels.
+ * 
+ * This function updates all ADC channels by calling the `adc_update` function for each channel.
+ * 
+ * @return void
+ */
+void adc_update_all()
+{
+  for (int i = 0; i < ADC_COUNT; i++)
+  {
+    adc_update(i);
+  }
+}
+
+/**
+ * @brief Performs ADC loop operations.
+ * 
+ * This function updates all ADC values and publishes them.
+ */
+void adc_loop()
+{
+  adc_update_all();
+  publish_all_adc();
+}
+
+/**
+ * Publishes the ADC value to the MQTT broker.
+ * 
+ * @param id The ID of the ADC channel.
+ */
+void publish_adc(int id)
+{
+  ADC_STATE_TOPIC[base_topic_length + 4] = ((id - id % 10) / 10) + '0';
+  ADC_STATE_TOPIC[base_topic_length + 5] = (id % 10) + '0';
+  char temp[6];
+  itoa(adc_values[id], temp, DEC);
+  mqtt.publish(ADC_STATE_TOPIC, temp);
+}
+
+/**
+ * Publishes the values of all enabled ADC channels.
+ * This function iterates through all ADC channels and publishes the values
+ * of the enabled channels using the publish_adc() function.
+ */
+void publish_all_adc()
+{
+  for (int i = 0; i < ADC_COUNT; i++)
+  {
+    if (adc_report_enable[i])
+      publish_adc(i);
+  }
+}
+/**
+ * @brief Retrieves the ADC value for the specified ID.
+ * 
+ * This function checks if the ADC report is enabled for the given ID. If not, it forces an update.
+ * It then returns the ADC value for the specified ID.
+ * 
+ * @param id The ID of the ADC channel.
+ * @return The ADC value for the specified ID.
+ */
+uint16_t get_adc_value(int id)
+{
+  if (!adc_report_enable[id])
+    adc_update_force(id);
+  return adc_values[id];
+}
+
+/**
+ * @brief Sets the state of an ADC based on the received MQTT message.
+ * 
+ * This function is called when an MQTT message is received to set the state of an ADC (Analog-to-Digital Converter).
+ * The function extracts the ADC ID from the topic and enables or disables the ADC based on the payload value.
+ * 
+ * @param topic The topic of the MQTT message.
+ * @param topic_length The length of the topic.
+ * @param payload The payload of the MQTT message.
+ * @param payload_length The length of the payload.
+ */
+void adc_set_state_callback(char *topic, uint8_t topic_length, char *payload, unsigned int payload_length)
+{
+  int a = topic[4] - '0';
+  int b = topic[5] - '0';
+  int id = 10 * a + b;
+  if (!strcmp(payload, "on"))
+  {
+    enable_adc(id);
+  }
+  else if (!strcmp(payload, "off"))
+  {
+    disable_adc(id);
+  }
+}
+
+/**
+ * @brief Sets the value of a DAC channel.
+ * 
+ * This function sets the value of a DAC channel specified by the `id` parameter.
+ * The `value` parameter represents the desired value for the DAC channel.
+ * The function updates the internal DAC value array, writes the value to the DAC,
+ * and also stores the value in the FRAM memory.
+ * 
+ * @param id The ID of the DAC channel.
+ * @param value The desired value for the DAC channel.
+ */
+void dac_set_value(int id, int value)
+{
+  dac_values[id] = value;
+  ESPMega_dacWrite(id, dac_values[id] * dac_states[id]);
+  ESPMega_FRAM.write16(EEPROM_ADDRESS_DAC_VALUE + id * 2, dac_values[id]);
+}
+
+/**
+ * @brief Sets the state of a DAC channel.
+ * 
+ * This function updates the state of a DAC channel and writes the new state to the DAC output.
+ * It also saves the state to the EEPROM for persistence across power cycles.
+ * 
+ * @param id The ID of the DAC channel.
+ * @param state The new state of the DAC channel.
+ */
+void dac_set_state(int id, bool state)
+{
+  dac_states[id] = state;
+  ESPMega_dacWrite(id, dac_values[id] * dac_states[id]);
+  ESPMega_FRAM.write8(EEPROM_ADDRESS_DAC_STATE + id, dac_states[id]);
+}
+
+/**
+ * @brief Sets the value of the DAC with a callback function.
+ *
+ * @param topic The topic of the message.
+ * @param topic_length The length of the topic string.
+ * @param payload The payload of the message.
+ * @param payload_length The length of the payload string.
+ */
+void dac_set_value_callback(char *topic, uint8_t topic_length, char *payload, unsigned int payload_length)
+{
+  int a = topic[4] - '0';
+  int b = topic[5] - '0';
+  int id = 10 * a + b;
+  int value = atoi(payload);
+  dac_set_value(id, value);
+}
+/**
+ * @brief Callback function for setting the state of the DAC.
+ * 
+ * This function is called when a message is received on the specified topic.
+ * It takes the topic, topic length, payload, and payload length as parameters.
+ * 
+ * @param topic The topic of the received message.
+ * @param topic_length The length of the topic string.
+ * @param payload The payload of the received message.
+ * @param payload_length The length of the payload string.
+ */
+void dac_set_state_callback(char *topic, uint8_t topic_length, char *payload, unsigned int payload_length)
+{
+  int a = topic[4] - '0';
+  int b = topic[5] - '0';
+  int id = 10 * a + b;
+  if (!strcmp(payload, "on"))
+  {
+    dac_set_state(id, true);
+  }
+  else if (!strcmp(payload, "off"))
+  {
+    dac_set_state(id, false);
+  }
+}
+#endif

src/espmega_iot_core.hpp

@@ -131,4 +131,19 @@ void eeprom_mqtt_useauth_retrieve();
 void set_mqtt_useauth(bool use_auth);
 
 void factory_reset();
-void check_boot_reset();
+void check_boot_reset();
+
+void enable_adc(int id);
+void disable_adc(int id);
+void adc_update(int id);
+void adc_update_force(int id);
+void adc_update_all();
+void adc_loop();
+void publish_adc(int id);
+void publish_all_adc();
+uint16_t get_adc_value(int id);
+void adc_set_state_callback(char *topic, uint8_t topic_length, char *payload, unsigned int payload_length);
+void dac_set_value(int id, int value);
+void dac_set_state(int id, bool state);
+void dac_set_value_callback(char *topic, uint8_t topic_length, char *payload, unsigned int payload_length);
+void dac_set_state_callback(char *topic, uint8_t topic_length, char *payload, unsigned int payload_length);

src/user_code.hpp

@@ -16,6 +16,7 @@
 #define ENABLE_INTERNAL_LCD
 #define ENABLE_IR_MODULE
 #define ENABLE_CLIMATE_MODULE // Require IR Module
+#define ENABLE_ANALOG_MODULE
 #define ENABLE_WEBUI
 
 // Infrared Transciever
@@ -35,6 +36,9 @@
 #define ESPMega_EXTLCD Serial2
 #endif
 
+// Analog Module Configuration
+#define ANALOG_REPORTING_INTERVAL 500
+
 // User Defined Functions
 void user_pre_init();
 void user_init();