This Arduino compatible Red & Green LED Module features a 5mm diameter LED that can display in red or green. These are bright LED perfect for indicating a changed state in your DIY project.

Test Code

int redpin = 11; // select the pin for the red LED
int greenpin = 10; // select the pin for the green LED
int val;

void setup () {
pinMode(redpin, OUTPUT);
pinMode(greenpin, OUTPUT);
Serial.begin(9600);
}

void loop () {
for(val=255; val>0; val--) {
analogWrite(11, val);
analogWrite(10, 255 - val);
delay(5);
}

for(val=255; val<255; val++) {
analogWrite(11, val);
analogWrite(10, 255 - val);
delay(5);
}
}