//***Project Rain Shield***
//Measure temp every ten minutes, if condition is met, pull pin high to activate relay every 10 minutes for 10 seconds.
//Relay will control solenoid to turn on water. 
//Delay between relay and water start must be accounted for.

#include <Wire.h>
//#include "Adafruit_MCP9808.h"
//Create the MCP9808 temperature sensor object
//Adafruit_MCP9808 tempsensor = Adafruit_MCP9808();

// Pin for relay module set as output
int myRelay = 8;
volatile byte relayState = LOW;

int myCount = 1;

void setup() {
    Serial.begin(9600);
    while (!Serial);
//        if (!tempsensor.begin(0x18)) {
//            Serial.println("MCP9808 not found! Check connections & verify address.");
//            while (1);
//        }
        Serial.println("MCP9808! Connected");
//        tempsensor.setResolution(0);
    pinMode(myRelay, OUTPUT);
    digitalWrite(myRelay, LOW);
    relayState = LOW;
    Serial.println("RELAY OFF");
}

void loop() {
    //Wake temp sensor
//    tempsensor.wake();

  float myTemp = 101; //= tempsensor.readTempF();
  Serial.print(myCount);Serial.print(" Temp: "); Serial.print(myTemp, 1); Serial.println("*F");

    if(myTemp>100 && relayState == LOW){
        pullRelayHIGH();
	      delay(2000);
        pullRelayLOW();
    }

  //tempsensor.shutdown_wake(1); // shutdown MSP9808 - power consumption ~0.1 mikro Ampere, stops temperature sampling
  myCount = myCount+1;
  delay(5000);
}

void pullRelayHIGH() {
    if(relayState != HIGH){
        digitalWrite(myRelay, HIGH);
        relayState = HIGH;
        Serial.println("RELAY ON");
    }
}

void pullRelayLOW() {
    if(relayState != LOW){
        digitalWrite(myRelay, LOW);
        relayState = LOW;
        Serial.println("RELAY OFF");
    }
}