Internet of Toilets 🚽🐈💩 how I built a Kitty Litter using JS
summary
Built a working IoT litter box that logs every cat visit and a passive weight reading, using a Raspberry Pi running Node.js with Johnny-Five for GPIO and a magnetic lid switch, plus a Python child process polling load cells every 0.1s to capture weight (no native Node package available). Events and daily documents stream into MongoDB time-series collections; system re-zeroes after maintenance, records timestamped weights, and reliably distinguishes maintenance vs. bathroom events.
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chapters (10)
- 0:00Introduction
- 1:55What is IoT
- 3:22Why JavaScript
- 6:33Internet-connected kitty litter
- 8:57Hello World with Johnny-Five
- 10:43Maintenance mode detection
- 11:45Load cells with Python & Node
- 13:08Cat bathroom data in MongoDB
- 15:34IoT and JavaScript future
- 17:19Start your IoT project
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