I am going through the Raspberry Pi Pico/Pico W course with a Pico 2 W board, This board has a known bug with internal pull-down resistors. The course book does not reflect this. I am in section 4.1 of the book. Is there a fix for this problem (RP2350 GPIO Latch-up Glitch)? I switched the code to Pull-Up and it works properly.
Hi.
You’re right. I’ll add a note to add that information on the next eBook update.
Apparently, the pull-up resistors were not affected.
So, you should use the pull-up resistors instead.
Or, if you want to use pull-down resistors, add them to the circuit instead of relying on the board’s internal hardware.
Regards,
Sara