Development-Projects/SmartPowerDevice/lightsensitive controll/README.md

lightsensitive controll

hardware

software (arduino code)

// arduino-light-sensor-triggers-relay incl delay counter

// constants won't change const int LIGHT_SENSOR_PIN = A0; // Arduino pin connected to light sensor's pin const int RELAY_PIN = 3; // Arduino pin connected to Relay's pin const int ANALOG_THRESHOLD = 450;

// variables will change: int analogValue;

void setup() { pinMode(RELAY_PIN, OUTPUT); // set arduino pin to output mode Serial.begin(9600);

}

void loop() { analogValue = analogRead(LIGHT_SENSOR_PIN); // read the input on analog pin float voltage = analogValue * (5.0 / 1023.0);

   Serial.println(analogValue);

int var = 0; while (var < 5 && analogValue < ANALOG_THRESHOLD) { delay(1000); var++; }

if(var=5 && analogValue < ANALOG_THRESHOLD) { digitalWrite(RELAY_PIN, LOW); } // turn off Relay

else {
digitalWrite(RELAY_PIN, HIGH); 
var = 0;
       }
   }