import time time.sleep(2) import pycom pycom.heartbeat(False) print('main MAC1') print('LED test') print (0xffffff) pycom.rgbled(0x0) Try this code. This should run perfectly fine.

Stupid mistake, I thought I had checked the pinout... thanks! Set it to None and now it works.

Thank you for the detailed answer! This is the best solution what I could find.

Hi @dpalharini Does the board work when powered with USB? Try pulling P8 high, if you also want to use the SD card, use a 10k pull-up.

@sympatron OK. I do not know where I found that, and cannot see it in the sources either. The only thing I found in the comments to 1.17.3.b1 was to switch of the RGB led early. So maybe it lights up for other reasons. A transition on P2 may bring the LED on. But at least the fact, that it switched off indicates the normal boot being started.

@livius Thanks!

@livius Thanks! I couldn't figure it out (quite new to python).. Ended up with this: def rgb_to_hex(red, green, blue): """Return color as #rrggbb for the given color values.""" return '%02x%02x%02x' % (red, green, blue) for i in range(256): color = rgb_to_hex(i,i,i) pycom.rgbled(256-int(color,16)) time.sleep(0.005) This just fades from white to off, removing the '256' fades from off to white.. Probably not the smoothest way to do it, but it works. :)

@crumble Pictures of the larp kit please :P Ill dig mine out in return ^_^ @arthurlutz Thats super cool. good work.

@jmarcelino Thank you for noting the issue and acting on it.