Node on Guard!
summary
A home alarm system is built from a Raspberry Pi bridging cheap 433 MHz sensors and actuators to cloud Docker containers via MQTT bridge, with the Pi running small C++ and bash components and the cloud running the Node backend and HTTP server. On alarm it turns on an IR illuminator, snaps USB webcam photos, uploads them over SCP, and serves them over HTTP while sending Twilio SMS alerts. The open source repo is on GitHub and the prototype supports five programmable zones.
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chapters (9)
- 0:00Node on Guard intro
- 1:07Hardware setup overview
- 2:30Technology stack
- 4:38MQTT and Pi integration
- 7:24Node.js event workflow
- 8:50Pi with 433 MHz devices
- 10:36IR and cameras control
- 12:19GUI demo
- 13:44SMS via Twilio
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