Light Dependent Resistor ( LDR ) with Arduino UNO.

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Arduino Code:



//////// ARDUINO UNO ADC is 10 BIT
///// 2^10 = 1024 means 0 - 1023
int ldrval;
void setup() {
Serial.begin(9600);
}

void loop() {
ldrval = analogRead(A0);
Serial.println(ldrval);

}