gounthar Posted April 10, 2020 Share Posted April 10, 2020 Armbianmonitor: http://ix.io/2htA 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. Link to comment Share on other sites More sharing options...
Werner Posted April 10, 2020 Share Posted April 10, 2020 My guess is the group never existed in Armbian. Link to comment Share on other sites More sharing options...
gounthar Posted April 10, 2020 Author Share Posted April 10, 2020 I see... Link to comment Share on other sites More sharing options...
martinayotte Posted April 10, 2020 Share Posted April 10, 2020 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. 1 Link to comment Share on other sites More sharing options...
gounthar Posted April 10, 2020 Author Share Posted April 10, 2020 If there is one better suited library for the Zero, I will gladly use it. Thanks. Link to comment Share on other sites More sharing options...
martinayotte Posted April 10, 2020 Share Posted April 10, 2020 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 1 Link to comment Share on other sites More sharing options...
gounthar Posted April 10, 2020 Author Share Posted April 10, 2020 Thanks! Link to comment Share on other sites More sharing options...
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