Using JavaScript to Find Your Dog

on YouTube ↗17m

" summary

Builds a portable dog locator using an Arduino Uno, a Bluetooth module, four AAA batteries and a small beeper; backend is Node + Express with the Johnny-Five library to open the hardware port and expose two REST endpoints that start and stop the beeper, frontend is plain HTML/JS with buttons that call those endpoints. Firmware comes from the Arduino IDE, JohnnyFive also works with Raspberry Pi, and the demo beeps successfully despite flaky pin connections. JohnnyFive beeper

AI-written summary · about

" chapters (7)

1. 0:00Intro
2. 0:39Overview
3. 1:27Project
4. 2:30Hardware
5. 6:33Node server
6. 11:18Front-end
7. 15:13Key takeaways

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