// Include the required Wire library for I2C
#include <Wire.h>

int oven_relay = 2;

int high_temp_limit = 200;

int oven_temp = 0;

int temp = 0;

void setup() {

// Define the Oven Relay pin as output

pinMode (oven_relay, OUTPUT);

// Start the I2C Bus as Slave on address 9

Wire.begin(9);

// Attach a function to trigger when something is received.

Wire.onReceive(receiveEvent);

//bit rate for data transfer over Serial communication

Serial.begin(9600);

}

void receiveEvent(int bytes) {

oven_temp = Wire.read(); // read one character from the I2C

}

void loop() {

//potentiometer value from sensor, scale as if it was deg C 

int temp = map(oven_temp, 0, 1023, 0, 275);



if (temp < high_temp_limit) {
digitalWrite(oven_relay, HIGH);
} 

else {
digitalWrite(oven_relay, LOW);
}


Serial.print("Oven Temp is: ");

Serial.println(temp);

Serial.print("Oven Temp Limit is:");

Serial.println(high_temp_limit);

Serial.print("Raw value  is: ");

Serial.println(oven_temp);

delay(1000);

}