Fanshim service issue Raspbian 9.11 about fanshim-python

[Gadgetoid]

Does systemctl status pimoroni-fanshim give any useful output- Python errors, or other messages in the log?

[rei-vilo]

Here is the result of systemctl status pimoroni-fanshim:

$ systemctl status pimoroni-fanshim
● pimoroni-fanshim.service - Fan Shim Service
Loaded: loaded (/etc/systemd/system/pimoroni-fanshim.service; enabled; vendor preset: enabled)
Active: failed (Result: exit-code) since Mon 2019-12-09 19:18:41 CET; 30min ago
Main PID: 10716 (code=exited, status=1/FAILURE)

Dec 09 19:18:41 myPiTwo.local systemd[1]: pimoroni-fanshim.service: Unit entered failed state.
Dec 09 19:18:41 myPiTwo.local systemd[1]: pimoroni-fanshim.service: Failed with result 'exit-code'.
Dec 09 19:18:41 myPiTwo.local systemd[1]: pimoroni-fanshim.service: Service hold-off time over, scheduling restart.
Dec 09 19:18:41 myPiTwo.local systemd[1]: Stopped Fan Shim Service.
Dec 09 19:18:41 myPiTwo.local systemd[1]: pimoroni-fanshim.service: Start request repeated too quickly.
Dec 09 19:18:41 myPiTwo.local systemd[1]: Failed to start Fan Shim Service.
Dec 09 19:18:41 myPiTwo.local systemd[1]: pimoroni-fanshim.service: Unit entered failed state.
Dec 09 19:18:41 myPiTwo.local systemd[1]: pimoroni-fanshim.service: Failed with result 'exit-code'.

[rei-vilo]

The only workaround I've found so far is to launch

python3 fanshim-python/examples/automatic.py &

Not very clean, especially if the Raspberry Pi reboots.

[rei-vilo]

Any answer?

[Gadgetoid]

I had no idea what the problem was in this case, so I was at a loss to providing a fix. However it might be related to- #66

I've since added a fix for the executable path, so re-running install-service.sh might help.

[rei-vilo]

Unfortunately, the fix from #66 didn't solve the issue.

$ git clone https://github.com/pimoroni/fanshim-python
$ cd fanshim-python
$ sudo ./install.sh

$ cd examples
$ sudo ./install-service.sh --on-threshold 50 --off-threshold 40 --delay 2

$ systemctl | grep pimoroni
● pimoroni-fanshim.service                                                                                          
      loaded failed     failed          Fan Shim Service             

[DKeppi]

Same problem here, so i reinstalled it and now it works :)

[Gadgetoid]

@rei-vilo did you ever get to the bottom of this?

[rei-vilo]

Thank you for asking.

A clean install (OS + Fanshim utility) solved the issue on the Raspberry Pi 4B.

[FlorentLM]

I had the same issue... turns out that you need to launch the install-service.sh from the examples folder.

If you launch it, for instance, from the base folder like so
sudo install ./examples/install-service.sh

then the $(pwd) in install-service.sh (lines 212 and 213)

WorkingDirectory=$(pwd)
ExecStart=$PYTHON $(pwd)/automatic.py --on-threshold $ON_THRESHOLD --off-threshold $OFF_THRESHOLD --low-temp $LOW_TEMP --high-temp $HIGH_TEMP --delay $DELAY --brightness $BRIGHTNESS $EXTRA_ARGS

takes the wrong working directory, and the service never finds the automatic.py file...