An Introduction to IoT (Internet of Toilets); Or How I Built an IoT Kitty Litter Box Using JS
summary
Builds a working IoT smart kitty litter box that logs cat weights and visit timestamps using a Raspberry Pi, Johnny-Five for GPIO, a magnetic switch for maintenance mode and load cells under the tray. Uses node spawning of a Python script via spawn child process to read weight every 0.1s, blinks an LED as a hello world, and stores daily documents with arrays of events in MongoDB time-series format. Device reliably detects cat-sized weight events and updates the database.
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chapters (7)
- 0:00Start
- 1:08Agenda
- 2:59Why Node?
- 7:12Maintenance Mode
- 7:54Cat Detected
- 8:22Reset new base weight
- 13:31IoT Time Series Schema
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