A simple temperature sensor that publishes an event to the Particle cloud if it gets above 82 degrees Fahrenheit
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void setup() { | |
Serial.begin(9600); | |
} | |
void loop() { | |
int val = analogRead(A0); | |
float voltage = val * 3.3 / 4096; // Convert analog reading to voltage value | |
float tempC = (voltage - 0.5) * 100; | |
float tempF = (tempC * 9.0 / 5.0) + 32.0; | |
Serial.printlnf("Temp F: %3.1f Temp C: %3.1f", tempF, tempC); | |
if(tempF > 82.0) | |
{ | |
String msg = "Device " + Particle.deviceID() + " is reading " + String(tempF) + " degrees"; | |
Particle.publish("server_room_too_hot", msg, 60, PRIVATE); | |
} | |
delay(3000); | |
} |
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