Use Battery (Pull P8 high)
To boot from the battery on the Expansion Board v3.0 I understand that you have to pull P8 high. I tried this using the following code:
from machine import Pin pin=Pin('P8',Pin.OUT) pin.value(1) print(pin.value())
but that does not seem to have any effect. Do you know what is wrong with the code?
robert-hh last edited by
@max You have to pull up P8 physically, because that sensing is done before MicroPython gets active.