An Intro To IoT (Internet of Toilets 🚽); Or How I Built an IoT Kitty Litter Box with JavaScript
summary
A working IoT litter box built with a Raspberry Pi and JavaScript uses Johnny-Five and raspi-io for hardware events, a magnetic switch for maintenance mode, and load cells read via a spawned Python process (HX711) to stream weight readings roughly every half second. The system reinitializes base weight on lid close, logs cat entries and per-visit weight into MongoDB time-series documents (one document per day with an events array), and successfully records and uploads each event.
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chapters (9)
- 0:00Introduction to IoT
- 2:06Why JavaScript for IoT
- 6:37Building the IoT litter box
- 10:47Hello World of IoT hardware
- 13:16Sensors and load cells
- 16:05Data management with MongoDB
- 18:53Future of IoT predictions
- 21:01How to start IoT projects
- 22:47Q&A session
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