Data Sheet

Application Ideas
test code
#include <math.h>
const int ledPin=12; //Connect the Linker LED module to
Pin12, Digital 12
const int thresholdvalue=10; //The treshold for which the LED
should turn on. Setting it lower will make it go on at more light, higher
for more darkness
void setup() {
Serial.begin(9600); //Start the Serial connection
pinMode(ledPin,OUTPUT); //Set the LED on Digital 12 as an
OUTPUT
}
void loop() {
int sensorValue = analogRead(0); //Connect the Linker LDR module to A0,
Analog 0
float Rsensor;
Rsensor=(float)(1023-sensorValue)*10/sensorValue;
if(Rsensor>thresholdvalue)
{
digitalWrite(ledPin,HIGH);
}
else
{
digitalWrite(ledPin,LOW);
}
Serial.println(Rsensor,DEC);
}