Setup instructions for OctoPrint on Bullseye

Uses libcamera / Picamera2 to connect to Raspberry Pi Camera Module 3 for web cam streaming with OctoPrint

Primary Source

Setting up OctoPrint on a Raspberry Pi running Raspberry Pi OS (Debian) - Get Help / Guides - OctoPrint Community Forum

Setup Steps

1. Follow instructions on OctoPrint Community Forum up until "Optional: Webcam"
2. Put ct-webcam.service in /lib/systemd/system/
3. Put mjpeg_server.py in /home/pi/scripts/
4. Assign proper file permissions and install the service:

sudo chmod 644 /lib/systemd/system/ct-webcam.service
chmod +x /home/pi/scripts/mjpeg_server.py
sudo systemctl daemon-reload
sudo systemctl enable ct-webcam.service
sudo systemctl start ct-webcam.service

5. Update OctoPi settings

• Use http://octoprint.local/webcam/stream.mjpg for the "Stream URL" (or http://octoprint.local:8080/stream.mjpg if Haproxy is not used)
• Use http://octoprint.local/webcam/snapshot.jpg for the "Snapshot URL" (or http://octoprint.local:8080/snapshot.jpg if Haproxy is not used)