gounthar 40 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. 0 Quote Link to post Share on other sites More sharing options...
Werner 409 Posted April 10, 2020 Share Posted April 10, 2020 My guess is the group never existed in Armbian. 0 Quote Link to post Share on other sites More sharing options...
gounthar 40 Posted April 10, 2020 Author Share Posted April 10, 2020 I see... 0 Quote Link to post Share on other sites More sharing options...
martinayotte 678 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 Quote Link to post Share on other sites More sharing options...
gounthar 40 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. 0 Quote Link to post Share on other sites More sharing options...
martinayotte 678 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 Quote Link to post Share on other sites More sharing options...
gounthar 40 Posted April 10, 2020 Author Share Posted April 10, 2020 Thanks! 0 Quote Link to post Share on other sites More sharing options...
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