Making a video installation with Raspberry Pi
Prepare the SD card
This procedure works for Raspberry PI 3 and Zero.
Download the image http://interactionstation.wdka.hro.nl/downloads/video_multi_channel_sync.img
Download etcher https://www.balena.io/etcher/
Use Etcher to flash the SD card with the image
Configure raspberry pi for videolooping
connect raspberry pi to a screen and keyboard + mouse then plug in the power.
When Raspberry starts up press esc, ctrl+d or ctrl+c to escape the looping video.
To get into graphic interface type “startx” and hit Enter
insert a USB stick with your video
Go to “File Manager”
Search for your video in folder /media/root/PEN_FAT32
Copy your video and place it in /home/pi/video-sync-loop/videos
Go back to the folder video-sync-loop and edit video-sync.config
adjust the configuration so that it says playback_mode=loop
Name the video in Video_filename=yourvideoname
save the file
restart the Pi and your video should automatically start looping
configure raspberry pi for syncing
setup wifi host … master slaves
Notes on Pi 4
The Raspberry Pi 4 has two HDMI (micro HDMI) outputs. You will need to use "HDMI0", that is the left output next to the power connector.