Use any RTSP camera with Prusa Connect

README.md

I use a cheap Tapo C100 webcam to monitor my 3D prints. It supports RTSP.

Instructions

1. Go to the Cameras section at https://connect.prusa3d.com
2. Add a new camera.
3. Click the QR code link
4. Click "Start Camera"
5. Open your browser's inspector window and look for the "/snapshot" request.
6. Copy the "Fingerprint" and "Token" headers into the docker-compose below.

The end result!

prusaconnect-camera-streamer.service

[Unit]
Description=Prusa Connect Camera Streamer
After=network.target

[Service]
ExecStart=/home/pi/prusaconnect-camera-streamer.sh
Restart=always
User=pi
Group=pi
WorkingDirectory=/home/pi/

[Install]
WantedBy=multi-user.target

upload.sh

#!/bin/bash

TOKEN=<token>
FINGERPRINT=<fingerprint>
CAMERA_SNAPSHOT_URL=http://<octopi-url>/webcam/snapshot

# Set default values for environment variables
: "${HTTP_URL:=https://webcam.connect.prusa3d.com/c/snapshot}"
: "${DELAY_SECONDS:=1}"
: "${LONG_DELAY_SECONDS:=60}"

while true; do
    # Grab a frame from the rpi camera snapshot url
    curl -sS -X GET "$CAMERA_SNAPSHOT_URL" -o output.jpg

    # If no error, upload it.
    if [ $? -eq 0 ]; then
        # POST the image to the HTTP URL using curl
        curl -sS -X PUT "$HTTP_URL" \
            -H "accept: */*" \
            -H "content-type: image/jpg" \
            -H "fingerprint: $FINGERPRINT" \
            -H "token: $TOKEN" \
            --data-binary "@output.jpg" \
            --no-progress-meter \
            --compressed > /dev/null

        # Reset delay to the normal value
        DELAY=$DELAY_SECONDS
    else
        echo "Error... Retrying after ${LONG_DELAY_SECONDS}s..."
        
        # Set delay to the longer value
        DELAY=$LONG_DELAY_SECONDS
    fi

    sleep "$DELAY"
done