- ideal for video streaming
- quiet
- metal case
- external WiFi antenna
- temperature controlled PWM of fan
- simple, only few additional hardware components are required
- Raspberry Pi 4 4GByte with U.FL antenna connector e.g. from geeks-r-us
- WLAN Upgrade Kit Raspberry Pi / ESP8266 5dBi e.g. from geeks-r-us
- drill an additional 6.5 mm hole for the RP-SMA socket into the metal case next to the fan opening
- Hifiberry AMP2 shield e.g. from Reichelt
- power supply LEICKE 72W Netzteil 12V 6A e.g. from Amazon
- metal case for Raspberry Pi 4 & HiFiBerry AMP2, black e.g. from Reichelt
- very quiet 25mm fan with ball bearing EBM Papst 255M axial flow fan 5 V/DC 2.3 m³/h (L x B x H) 25 x 25 x 8 mm e.g. from Conrad
- heat sink 40 mm x 30 mm for Raspberry Pi 4 e.g. from Reichelt
- spacers, screws as appropriate
- loudspeaker and speaker cables, e.g. Polk S10E
- TV or monitor, e.g. Philips Monitor BDM3270QP/00
- for the fan control
- 2N 7000 FAI MOSFET, N-CH, 60V, 0,115A, 0,4W, TO-92 e.g. from Reichelt
- resistor 10kOhm e.g. from Reichelt
- resistor 100Ohm e.g. from Reichelt
- diode 1N4148 e.g. from Reichelt
- schematics of fan control:
- solder as floating wiring, ensure that all components are isolated by insulation tape
- as reference, the GPIO pinout of a Raspberry Pi 4 is available e.g. here
- used Raspberry Pi 4 GPIO pins:
- +5V power (#2)
- GND ground (#6)
- BCM24 (#18)
- note: do not use GPIOs that are used by the Hifiberry AMP2, see here
- Libreelec 11 Rpi4 nightly build e.g. this one (may not exist anymore) (worked for me, please check for the latest available RPi4 nightly builds at https://test.libreelec.tv/11.0/RPi/RPi4/: LibreELEC-RPi4.arm-11.0-nightly-*.img.gz)
- replace the Rapberry Pi 4's config.txt:
-
connect to the Raspberry Pi 4 via ssh:
- enable ssh access in Libreelec
ssh root@<raspberry_pi4_ip_address>
- the default ssh password is: libreelec (if not changed yet, it is strongly recommended to change the default password!)
- the /flash boot partition is read-only by default, so we need to remount it in read-write mode:
mount -o remount,rw /flash
- now execute the following commands at the command line
cd /flash
wget https://github.com/FUEL4EP/Libreelec_Raspberry_Pi4_Fan_Control/blob/master/config.txt
- then set the /flash partition back to read-only mode:
mount -o remount,ro /flash
- and reboot for the changes in config.txt to be applied:
reboot
-
- install / update the following addons to the latest version if streamings are suddenly stopping, this may happen after an update of LibreElec image
- InputStream Adaptive
- Inputstream FFmpeg Direct
- RTMP Input
- the fan control software is derived from here. Many thanks to internauta37 !
-
installation procedure for the fan control (derived from here.)
-
major change is that the fan is turning at 'turn_on_speed (default: 65%)' speed for 1 second after each change of the fan speed
-
to make the fan working on LibreELEC it is necessary to perform the following steps:
-
install the Addon Raspberry Pi Tools in LibreELEC
-
connect to the Raspberry Pi 4 via ssh:
- enable ssh access in Libreelec
ssh root@<raspberry_pi4_ip_address>
- the default ssh password is: libreelec
- check that all the libraries by Raspberry Pi Tools have been installed correctly:
ls -la /storage/.kodi/addons/virtual.rpi-tools/lib
- download the python script that starts and manages the fan:
mkdir /storage/.config/fan_controller
cd /storage/.config/fan_controller
- create the autostart.sh file and let his start the python script that takes care of controlling the fan:
touch /storage/.config/autostart.sh
chmod +x /storage/.config/autostart.sh
nano /storage/.config/autostart.sh
- adding to it:
(python3 /storage/.config/fan_controller/fan_controller.py)&
- save it
- if you want to have the audio muted after the boot of LibreElec, then use the provided autostart.sh instead
- now all that remains is to restart the Raspberry and enjoy the fan running:
reboot
- ensure that the fan is turning after the reboot
- experts can observe debug messages by invoking from the command line after setting 'debugFlag=True' in the python script 'fan_controller.py':
python3 /storage/.config/fan_controller/fan_controller.py
- please do not forget to set 'debugFlag=False' afterwards
-
-
- I got some Mediathek addons working properly by installing the following VideoPlayer InputStream LibreELEC Addons:
- InputStream Adaptive
- Inputstream FFmpeg Direct
- RTMP Input
- without these 3 addons the seeking forward and backward is not working!
- CURRENTLY NOT WORKING DUE TO NOT MAINTAINED releases.json FILE: for manual updates inside Libreelec please define in Settings => LibreElec => Updates:
- automatic updates: manual
- user defined channel 1: https://test.libreelec.tv/releases.json (currently not properly defined!!)
- Update-Channel: LibreELEC-11.0
- then select the latest update in 'available updates'
- alternative manual update via ssh is as follows:
- login into Libreelec by ssh
- cd /storage/.update
- wget -c <URL of latest LibreELEC-RPi4.arm-11.0-nightly-*.img.gz> in https://test.libreelec.tv/11.0/RPi/RPi4
- e.g wget -v https://test.libreelec.tv/11.0/RPi/RPi4/LibreELEC-RPi4.arm-11.0-nightly-20220718-3a651c4.img.gz
- reboot
- seal the SD card opening of the case with black adhesive tape in order to avoid a bypass of the air flow. Keep the fan opening free.
-
I've successfully migrated my LibreELEC 11 system to LibreELEC 12
-
if you want to migrate your LibreELEC 11 system to LibreELEC 12, please follow these steps:
- create a backup of your LibreELEC 11 system
- Settings => LibreELEC => Backup
- store the backup data on an USB stick
- keep your LibreELEC 11 SD card, don't overwrite it, and keep it if your LibreELEC 12 migration should fail!
- create a backup of your LibreELEC 11 system
-
flash the latest official LibreELEC 12 nightly build from here to a NEW SD card having at least the same size as your LibreELEC 11 SD card
-
insert the new SD card into the SD card slot of your Raspberry Pi 4
-
boot the system
-
restore the LibreELEC 11 backup created as above
-
replace the Rapberry Pi 4's config.txt:
-
connect to the Raspberry Pi 4 via ssh:
- enable ssh access in Libreelec
ssh root@<raspberry_pi4_ip_address>
- the default ssh password is: libreelec (if not changed yet, it is strongly recommended to change the default password!)
- the /flash boot partition is read-only by default, so we need to remount it in read-write mode:
mount -o remount,rw /flash
- now execute the following commands at the command line
cd /flash
wget https://github.com/FUEL4EP/Libreelec_Raspberry_Pi4_Fan_Control/blob/master/config.txt
- then set the /flash partition back to read-only mode:
mount -o remount,ro /flash
- and reboot for the changes in config.txt to be applied:
reboot
-
-
if everything ran smoothly, continue as follows:
-
replace the LE 11 Python script for the fan controller, since LE 12 requires some modifications:
-
connect to the Raspberry Pi 4 via ssh:
ssh root@<raspberry_pi4_ip_address>
-
the default ssh password is: libreelec
-
download the LE 12 python script that starts and manages the fan:
cd /storage/.config/fan_controller
wget https://raw.githubusercontent.com/FUEL4EP/Libreelec_Raspberry_Pi4_Fan_Control/master/fan_controller_LE12.py fan_controller.py
- now restart the Raspberry and enjoy the fan running:
reboot
- ensure that the fan is turning after the reboot
- experts can observe debug messages by invoking from the command line after setting 'debugFlag=True' in the python script 'fan_controller.py':
python3 /storage/.config/fan_controller/fan_controller.py
- please do not forget to set 'debugFlag=False' afterwards
- update the LibreELEC addons (usually not needed)
- enjoy
- install the latest official LibreELEC 12 nightly builds from here as available, follow the LE 11 instructions above
-
after having successfully migrated to LE 12, you can also update to LibreElec 13 as usual
-
the LE 13 daily updates are here
-
for LE13, please use fan_controller_LE13.py instead of fan_controller.py:
-
download the LE 13 Python script for the fan controller, since LE 13 requires some modifications:
-
connect to the Raspberry Pi 4 via ssh:
ssh root@<raspberry_pi4_ip_address>
-
the default ssh password is: libreelec
-
download the LE 13 python script that starts and manages the fan:
cd /storage/.config/fan_controller
wget https://raw.githubusercontent.com/FUEL4EP/Libreelec_Raspberry_Pi4_Fan_Control/master/fan_controller_LE13.py fan_controller_LE13.py
- download the LE13 daily update script my_update.bsh:
cd /storage/.config
wget https://raw.githubusercontent.com/FUEL4EP/Libreelec_Raspberry_Pi4_Fan_Control/master/my_update.bsh my_update.bsh
chmod +x my_update.bsh
- download the LE13 autostart.sh script autostart_LE13.sh:
cd /storage/.config
wget https://raw.githubusercontent.com/FUEL4EP/Libreelec_Raspberry_Pi4_Fan_Control/master/autostart_LE13.sh autostart.sh
chmod +x autostart.sh
- now restart the Raspberry and enjoy the fan running:
reboot
- check that the installed software is running properly by
- connect to the Raspberry Pi 4 via ssh:
ssh root@<raspberry_pi4_ip_address>
- enter the command
journalctl -u kodi-autostart
-
to see the boot messages. No error should be reported.
-
check that the python fan controller script is running by the command
ps auxw | grep python
- the output should list the running python script like
1441 root 0:02 python3 /storage/.config/fan_controller/fan_controller_LE13.py
- use of these instructions is on your own risk! No liability by the publisher!
- ensure that the fan is turning after installation
- ensure that your raspberry pi4 is not overheating due to a wrong installation
- it is strongly recommended to make a backup of your SD card before you upgrade the Libreelec nightly build
- you can download the files of this repository from here as a zip file.
- for a Smart Home with RaspberryMatic a DIY power switch for demand switch power supply has been developped: HB-UNI-SenAct-4-4-RC_DS. A fitting PCB is described here HB-UNI-SenAct-4-4-SC_DS_FUEL4EP.
- the power-up and shutdown of the Raspberry PI and the monitor can then e.g. be controller by Shortcuts on a Apple iPAD, see screendumps here
- if you like my contribution, please feel free to spend me a coffee:
Creative Commons BY-NC-SA
Give Credit, NonCommercial, ShareAlike
This work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License.
