I know there is almost similar question in fourm
but I would say I am newbie and don’t know how to use this pin as normal gpio pin. I mean it’s open drain pin and I did following steps:
- connected 3.3v vcc from board via 1K resistor
- followed this guide https://docs.khadas.com/linux/vim3/Gpio.html for 426pin (gpioz_15)
but output is always same zero.
I connected externel vcc as bellow
I will appreciate if can get any hints or help.