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Update WaterishOS-minimal2.0.ino

This commit is contained in:
Siwat Sirichai 2019-08-09 10:21:21 +07:00
parent a1727fb813
commit 45d63cbdd3
1 changed files with 8 additions and 43 deletions
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51
WaterishOS-minimal2.0/WaterishOS-minimal2.0.ino
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@ -9,28 +9,19 @@ byte arduinoInterrupt=1;
FlowMeter sensorA[6]= FlowMeter(1); FlowMeter sensorA[6]= FlowMeter(1);
FlowMeter sensorB[6]= FlowMeter(3); FlowMeter sensorB[6]= FlowMeter(3);
volatile boolean awakenByInterrupt = false; volatile boolean awakenByInterrupt = false;
// Two pins at the MCP (Ports A/B where some buttons have been setup.)
// Buttons connect the pin to grond, and pins are pulled up.
byte mcpPinA=7;
byte mcpPinB=15;
void setup(){ void setup(){
pinMode(1, FUNCTION_3); pinMode(1, FUNCTION_3);
pinMode(3, FUNCTION_3); pinMode(3, FUNCTION_3);
pinMode(1,INPUT); pinMode(1,INPUT);
pinMode(3,INPUT); pinMode(3,INPUT);
mcp.begin(); // use default address 0 mcp.begin();
mcp.setupInterrupts(true,false,LOW); mcp.setupInterrupts(true,false,LOW);
// configuration for a button on port A for(int i=0;i<=15;i++)
mcp.pinMode(mcpPinA, INPUT); {
// mcp.pullUp(mcpPinA, HIGH); // turn on a 100K pullup internally mcp.pinMode(i, INPUT);
mcp.setupInterruptPin(mcpPinA,RISING); mcp.setupInterruptPin(i,RISING);
mcp.pinMode(mcpPinB, INPUT); }
// mcp.pullUp(mcpPinB, HIGH); // turn on a 100K pullup internall }
mcp.setupInterruptPin(mcpPinB,RISING);
// We will setup a pin for flashing from the int routine // We will setup a pin for flashing from the int routine
pinMode(ledPin, OUTPUT); pinMode(ledPin, OUTPUT);
} }
@ -46,38 +37,12 @@ void handleInterrupt(){
// Get more information from the MCP from the INT // Get more information from the MCP from the INT
uint8_t pin=mcp.getLastInterruptPin(); uint8_t pin=mcp.getLastInterruptPin();
uint8_t val=mcp.getLastInterruptPinValue(); uint8_t val=mcp.getLastInterruptPinValue();
// We will flash the led 1 or 2 times depending on the PIN that triggered the Interrupt
// 3 and 4 flases are supposed to be impossible conditions... just for debugging.
for(int sid=0;sid<=5;sid++)sensorA[sid].count(); for(int sid=0;sid<=5;sid++)sensorA[sid].count();
for(int sid=6;sid<11;sid++)sensorA[sid-6].count(); for(int sid=6;sid<11;sid++)sensorA[sid-6].count();
// we have to wait for the interrupt condition to finish
// otherwise we might go to sleep with an ongoing condition and never wake up again.
// as, an action is required to clear the INT flag, and allow it to trigger again.
// see datasheet for datails.
while( ! (mcp.digitalRead(mcpPinB) && mcp.digitalRead(mcpPinA) ));
// and clean queued INT signal
cleanInterrupts(); cleanInterrupts();
}
// handy for interrupts triggered by buttons // handy for interrupts triggered by buttons
// normally signal a few due to bouncing issues // normally signal a few due to bouncing issues
void cleanInterrupts(){
//EIFR=0x01;
awakenByInterrupt=false;
}
/**
* main routine: sleep the arduino, and wake up on Interrups.
* the LowPower library, or similar is required for sleeping, but sleep is simulated here.
* It is actually posible to get the MCP to draw only 1uA while in standby as the datasheet claims,
* however there is no stadndby mode. Its all down to seting up each pin in a way that current does not flow.
* and you can wait for interrupts while waiting.
*/
void loop(){ void loop(){
attachInterrupt(arduinoInterrupt,intCallBack,FALLING); attachInterrupt(arduinoInterrupt,intCallBack,RISING);
while(!awakenByInterrupt);
// disable interrupts while handling them.
detachInterrupt(arduinoInterrupt);
if(awakenByInterrupt) handleInterrupt();
} }