Arcade – How to launch MagicMirror from RetroPie
I’m new to Raspberry Pi and I have recently built an Arcade with it, using an old monitor and 2 Player Joystick Buttons. Now I’m trying to explore the full potential of the Raspberry Pi and I wanted to launch the MagicMirror application from RetroPie.
My version of RetroPie is comit f90600 (Date: Jul 30 2019) and I can see that by typing this at the command line:
$ cd ~/RetroPie-Setup $ git show
Getting back to the subject, first you have to install PIXEL desktop environment (to run MagicMirror from there) by accessing RetroPie menu -> RetroPie SETUP -> Configuration / tools -> raspbiantools – Raspbian related tools -> Install Pixel desktop environment. After that you can access desktop from the ports menu.
To start MagicMirror automatically first you have to create a file to call a bash script that executes MagicMirror (you must have installed it before). Let’s call the file mirror.desktop and save it in /home/pi/.config/autostart to run at every boot. You’ll have to create the autostart folder if it doesn’t exist.
$ cd /home/pi/.config/ $ mkdir autostart $ cd autostart $ nano mirror.desktop
Save the code bellow as mirror.desktop. This file is going call the bash script mirror.sh saved in /home/pi/Documents.
[Desktop Entry] Type=Application Name=mirror Exec=/home/pi/Documents/mirror.sh
You can write mirror.sh code as described bellow.
#!/bin/bash cd /home/pi/MagicMirror DISPLAY=:0 npm start
Don’t forget to make mirror.sh executable by tipping the following code at command line.
$ sudo chmod +x /home/pi/Documents/mirror.sh
Yes!!! Finally the MagicMirror starts automatically from the RetroPie!!!! But… What about going back to RetroPie from MagicMirror, without a mouse or a keyboard, just using the joystick controller. I’ve tried two different approaches to end the user session and you can check it out by clicking the following links: using USB joystick buttons and using a push button connected to GPIO.
I hope you enjoyed and learned something new! See you around!! 🙂