MCH2022 badge?
go to mch2022.badge.team

Content import badge, ugfx badge.leds_enable() #ugfx.input_attach(ugfx.BTN_FLASH, lambda pushed: badge.leds_send_data(''.join([('\xff' if pushed else '\0') for i in range(24)]), 24)) # sorry to edit your app like this, we don't have collaborative edits in place yet # The line should read: ugfx.input_attach(ugfx.BTN_FLASH, lambda pushed: badge.leds_send_data(bytes([(0xff if pushed else 0) for i in range(0,24)]),24))