LED_BUILTIN not working on Pico2 W

[skpang]

I'm trying to blink the on board LED on the Pico2 W but the LED is not coming on.

pinMode(LED_BUILTIN, OUTPUT);
digitalWrite(LED_BUILTIN, HIGH);

This is working on a Pico W.

I'm using library v4.3.0

Does it need updating for the Pico2 W ?

[earlephilhower]

Please double check you have selected the Pico 2 W board from the menus, and also please run the blink.ino example. I forget the exact polarity of the LED (high=on or high=off) on that board.

[skpang]

This is the code I'm using :
void setup() {
// initialize digital pin LED_BUILTIN as an output.
pinMode(LED_BUILTIN, OUTPUT);
}

// the loop function runs over and over again forever
void loop() {
digitalWrite(LED_BUILTIN, HIGH); // turn the LED on (HIGH is the voltage level)
delay(1000); // wait for a second
digitalWrite(LED_BUILTIN, LOW); // turn the LED off by making the voltage LOW
delay(1000); // wait for a second
}

It works on a Pico W but when I swap the board to a Pico 2W and changed the board to Pico 2W, upload the same sketch the LED on board does not come on or blink. I've also tried on another Pico 2W with the same result.

[earlephilhower]

Thanks for checking. It's one of the teething problems in the Pico2W release. Replace LED_BUILTIN with 64 and it should work.

I'll be updating this line to the right pin...

arduino-pico/variants/rpipico2w/pins_arduino.h

Line 10 in e16c459

#define PIN_LED (25u)

[skpang]

Ok, changed to 64 and the LED now blinks.
Thanks.