Lego Pet Food Bowl Scale with Live Camera (ESPHome)

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Hi everyone,

I built a pet food bowl scale using Lego bricks, M5Stack AtomS3R-M12, and M5Stack Unit-Mini Scales. It is integrated into Home Assistant via ESPHome.

This setup allows me to monitor food weight and check on my pet via a live camera feed.

Key Features:

  • Real-time food weight monitoring.

  • Live video stream (320x240 @ 2fps) using the onboard camera.

  • Zero-point calibration (Tare) from Home Assistant.

  • Custom digital filters (Average, EMA, LP Filter) adjustable from the dashboard.

Hardware:

  • M5Stack AtomS3R-M12

  • M5Stack Unit-Mini Scales

  • Lego Bricks

1
11920×2560 1.3 MB

2
21920×2560 815 KB

3
31920×2560 583 KB

4
41920×2560 973 KB

5
51920×2560 664 KB

6
6840×731 36.9 KB

The full code and details are available here: GitHub Repository