34 lines
1.5 KiB
Markdown
34 lines
1.5 KiB
Markdown
# phoenix-upshid
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Simple driver for reading data from Phoenixtec ("Amazon Basics") UPSes written in c
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## Why?
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A while ago I bought a UPS (Uninterruptible power supply) from Amazon Basics.
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I tried multiple drivers for it, but they all had their problems:
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- **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
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- UPower had a stable connection, battery percentage was updated in real-time, but the **charging state was frozen**, displaying `fully-charged` when UPS was at 5% charge or displaying `charging` when UPS was already at 100%
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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.
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At the end I [reverse-engineered](https://github.com/DrMaxNix/phoenix-upshid/blob/main/nut-reverseengineering.md) 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"!
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## How to use
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Download and extract source and compile:
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```console
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$ wget https://github.com/DrMaxNix/phoenix-upshid/archive/refs/tags/1.0.0.tar.gz
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$ tar xf 1.0.0.tar.gz
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$ cd phoenix-upshid-1.0.0
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$ gcc -o phoenix-upshid phoenix-upshid.c
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```
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OPTIONALLY copy to `$PATH`:
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```console
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# cp phoenix-upshid /usr/local/bin/
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```
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Print device data of device 06da:ffff (and try usb reset):
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```console
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# ./phoenix-upshid -a 06da:ffff
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```
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