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README.md(file created)
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| 1 | + | # Element14 Pi-Desktop scripts for LibreELEC | |
| 2 | + | ||
| 3 | + | This gist contains the files needed to make Pi-Desktop's power butoon work in LibreELEC. | |
| 4 | + | Due to hardware limitations in the Pi-Desktop this button turns off the Raspberry Pi instead of opening the power menu. | |
| 5 | + | ||
| 6 | + | ## Setup | |
| 7 | + | ||
| 8 | + | 1. Install the Raspberry Pi Tools add-on | |
| 9 | + | - `System (settings)` -> `Add-ons` -> `Install from repozitory` -> `LibreELEC Add-ons` -> `Program add-ons` -> `Raspberry Pi Tools` -> `Install` | |
| 10 | + | 2. Get SSH access | |
| 11 | + | - `System (settings)` -> `LibreELEC` -> `Services` -> `Enable SSH` | |
| 12 | + | - If you don't setup a password the default is `libreelec` | |
| 13 | + | - Keep in mind that the default password should be changed or SSH turned off for better security. | |
| 14 | + | - `System (settings)` -> `LibreELEC` -> `Connections` -> `Address: aaa.bbb.c.ddd` | |
| 15 | + | - Get the IP address of the device by looking at the connection used | |
| 16 | + | 3. SSH to the device: `ssh root@aaa.bbb.c.ddd` | |
| 17 | + | 4. Run the install script: `curl -sSL https://opengist.stefka.eu/jiriks74/element14-libreelec/raw/HEAD/install.sh | bash` | |
| 18 | + | 5. The light should blink once to indicate that the power button script started successfully | |
| 19 | + | - It will blink once on every boot to indicate that the Pi comunicates with the power supply | |
| 20 | + | ||
| 21 | + | ## Manual setup | |
| 22 | + | ||
| 23 | + | If you're uncomfortable running a scripts from the internet you can fetch the files yourself and save them like this: | |
| 24 | + | ||
| 25 | + | ```bash | |
| 26 | + | /storage/scripts/pidesktop/powerkey.py | |
| 27 | + | /storage/.config/system.d/pidesktop-powerkey.service | |
| 28 | + | ``` | |
| 29 | + | ||
| 30 | + | Then you need to run `systemctl enable pidesktop-powerkey` to start the scripts on boot and `systemctl start pidekstop-powerkey` to start it now. | |
| 31 | + | ||
| 32 | + | The light on the case should blink once to indicate that the script initialized successfully. | |
| 33 | + | ||
| 34 | + | ## Usage | |
| 35 | + | ||
| 36 | + | The power key can do 2 things on the Pi Desktop | |
| 37 | + | - When held for 2 seconds it sends a power off signal to the Pi (only once, more keypresses don't do anything) | |
| 38 | + | - When held for 5 seconds it cuts off power from the Pi (as if you unplugged if from wall power) | |
install.sh(file created)
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| 1 | + | #!/bin/bash | |
| 2 | + | set -e | |
| 3 | + | ||
| 4 | + | mkdir -p /storage/scripts/pidesktop | |
| 5 | + | ||
| 6 | + | curl "https://opengist.stefka.eu/jiriks74/element14-libreelec/raw/HEAD/powerkey.py" -o /storage/scripts/pidesktop/powerkey.py | |
| 7 | + | curl "https://opengist.stefka.eu/jiriks74/element14-libreelec/raw/HEAD/pidesktop-powerkey.service" -o /storage/.config/system.d/pidesktop-powerkey.service | |
| 8 | + | ||
| 9 | + | systemctl daemon-reload | |
| 10 | + | systemctl enable pidesktop-powerkey | |
| 11 | + | systemctl start pidesktop-powerkey | |
pidesktop-powerkey.service(file created)
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| 1 | + | [Unit] | |
| 2 | + | Description=pidesktop power button service | |
| 3 | + | After=local-fs.target | |
| 4 | + | ||
| 5 | + | [Service] | |
| 6 | + | Type=simple | |
| 7 | + | User=root | |
| 8 | + | ExecStart=/usr/bin/python3.11 /storage/scripts/pidesktop/powerkey.py | |
| 9 | + | ||
| 10 | + | [Install] | |
| 11 | + | WantedBy=multi-user.target | |
powerkey.py(file created)
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| 1 | + | #!/usr/bin/env python | |
| 2 | + | # | |
| 3 | + | # pd-powerkey.py - monitor GPIO to detect power key press from Power MCU (PCU) | |
| 4 | + | # | |
| 5 | + | ||
| 6 | + | import time,os,sys | |
| 7 | + | os.chdir('/storage/scripts/pidesktop/') | |
| 8 | + | sys.path.append('/storage/.kodi/addons/virtual.rpi-tools/lib') # Import gpiozero from Raspberry Pi Tools add-on | |
| 9 | + | from gpiozero import Button,LED | |
| 10 | + | ||
| 11 | + | print("pidesktop: power button service initializing") | |
| 12 | + | ||
| 13 | + | pwrBtn = Button(13) # PCU to Pi - detect power key pressed | |
| 14 | + | ||
| 15 | + | pcu = LED(6) # Pi to PCU - start/stop shutdown timer | |
| 16 | + | pcu.off() # tell PCU we are alive | |
| 17 | + | pcu.on() # cause blink by starting shutdown timer | |
| 18 | + | time.sleep(0.5) | |
| 19 | + | pcu.off() # clear timer to stop blinking and prefent forced power off | |
| 20 | + | ||
| 21 | + | # callback function | |
| 22 | + | def powerkey_pressed(channels): | |
| 23 | + | print("pidesktop: power button press detected, initiating shutdown") | |
| 24 | + | os.system("sync") | |
| 25 | + | # os.system("shutdown -h now") # Shutdown the OS directly (forced shutdown) | |
| 26 | + | os.system("kodi-send --action=ShutDown") # Tell Kodi to execute it's shutdown procedure (graceful) | |
| 27 | + | sys.exit() | |
| 28 | + | ||
| 29 | + | pwrBtn.when_released = powerkey_pressed # Setup callback for the power off signal | |
| 30 | + | print("pidesktop: power button monitor enabled") | |
| 31 | + | ||
| 32 | + | while True: # Keep the service running | |
| 33 | + | time.sleep(10) | |
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