Simple driver for reading data from Phoenixtec ("Amazon Basics") UPSes written in c
A while ago I bought a UPS (Uninterruptible power supply) from Amazon Basics. I tried multiple drivers for it, but they all had their problems:
- NUT tended to mess up the USB connection after some days to a point where you had to unplug and re-plug the USB cable of the UPS
- UPower had a stable connection, battery percentage was updated in real-time, but the charging state was frozen, displaying
fully-chargedwhen UPS was at 5% charge or displaying
chargingwhen UPS was already at 100%
- ..and many more that didn't work at all.
So I tried writing dirty fixes for both of those drivers, which would reset the USB connection when detecting such problem. But it wasn't as stable as I had hoped.
At the end I reverse-engineered the USB-HID protocol of the UPS and wrote my own driver for it in c, which has the reset-capability built-in. I'm not at all into c driver development, so use this at your own risk, as the license already states: "WITHOUT WARRANTY OF ANY KIND"!
How to use
Download and extract source and compile:
$ wget https://git.tjdev.de/DrMaxNix/phoenix-upshid/archive/v1.0.2.tar.gz $ tar xf v1.0.2.tar.gz $ cd phoenix-upshid $ gcc -o phoenix-upshid phoenix-upshid.c
OPTIONALLY copy to
# cp phoenix-upshid /usr/local/bin/
Find device id:
$ lsusb ... Bus 001 Device 005: ID 06da:ffff Phoenixtec Power Co., Ltd ...
Print device data of device
06da:ffff (and try usb reset):
# ./phoenix-upshid -a 06da:ffff