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docs: Mention more tested devices and the dialout group

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Jarno Rankinen 2024-03-19 22:38:41 +02:00
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README.md
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@ -112,10 +112,13 @@ WantedBy=default.target
### Connecting to the Pingvin unit
#### RPi/computer running the daemon
- Connect an RS-485 adapter to the computer you intend to run the daemon on
- Tested only on a RPi 4B and Zero W 1 with the Zihatec RS-485 HAT
- You may need terminating resistors in your adapter, see documentation of your adapter.
- Tested on:
- RPi 4B and Zero W 1, generic x86_64 linux machines (Alma Linux 8 & 9, Fedora)
- Zihatec RS-485 HAT with the Pis
- generic USB-RS485 adapter (checksum errors considerably more often, but nothing critical)
- Ensure the user you intend to run the daemon as has read/write privileges to the serial device.
- No need to run the daemon as root, and it is not recommended
- **Not recommended and no need to run as root**
- Usually adding the user running the executable to the `dialout` group gives permissions to serial devices
#### Pingvin
- Shut down the main power of the unit