Instructions

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wget https://mirrors.kodi.tv/addons/krypton/script.module.pyserial/
script.module.pyserial-3.4.0.zip
If you select this, the addon should be installed. To enable serial commu-
nication with the Raspberry Pi completely, you also have to edit the con-
fig.txt Open it with the following commands:
mount -o remount,rw /flash
Add the following lines at the end of the file:
dtoverlay=pi3-miniuart-bt
enable_uart=1
core_freq=250
Save with CTRL + O and exit the editor again with CTRL + X. Restart the
Raspberry Pi with the following command to allow the changes to take
eect.
reboot
Now download an addon to use the GPIO functions of the Raspberry Pi.
You can find the function Download from Repository in the menu Ad-
dons. There you can find under LibreELEC Addons → Program Addons →
Raspberry Pi Tools, which you have to install.
First enter the following command to download the serial communicati-
on addon:
Now you can install addons with the help of the Install from Zip files. To
do so, go to the home folder. Where the zip file should already be display-
ed. If you select this, the addon should install.
nano /flash/config.txt