Hi team,

 

I am trying to get a voltage drop (3.3V to about 0V) detected on a GPIO pin on my OrangePi Zero running Armbian buster 20.02.1 with Linux 5.4.31-sunxi.
I have another OrangePi Zero on which I have already managed to install I2C OLED screen, and the i2cdetect was working, and so on...
For this one, I got a problem with the gpio group not existing.

As I tried to install OPi.GPIO, I got

 usermod: group 'gpio' does not exist

It's an Armbian version that I downloaded yesterday, and upgraded today with armbian-config.
So... What did I do the wrong way?

Thanks.

My guess is the group never existed in Armbian.

I see...

1 minute ago, gounthar said:

I see...

 

Why don't you use well known lib like :

 

https://github.com/duxingkei33/orangepi_PC_gpio_pyH3

 

I think there is also a fork of it for specific OPiZero, which will avoid tweaking the mapping.h for the pins.

If there is one better suited library for the Zero, I will gladly use it.
Thanks.

1 minute ago, gounthar said:

If there is one better suited library for the Zero, I will gladly use it.

There is also this one, although not a fork of the previous : https://github.com/Jeremie-C/OrangePi.GPIO

 

Thanks!