Camera Alert with tinyCam and SIGNL4
This flow sends an alert with an image of a surveillance camera if a motion has been detected.
Camera
As camera we just use an Android phone and the tinyCam Pro app. This one can detect motion and also provides an API for accessing the video stream or current image.
Alerting App
For alerting we use the app-based alerting service SIGNL4. The app receives the alert along with the image and a link to the video stream.
Node-RED Flow
The Node-RED flow waits for the webhook request indicating that the camera has detected some motion. Then the HTTP request downloads the current image. The JavaScript function assembles the alert data and also converts the binary image data into a base64 string.
The flow can be adapted easily to support other cameras as well.
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