Sensors open up endless possibilities for Arduino projects, from reading temperature and humidity to detecting light, motion, or distance. With just a few components and simple code, you can capture ...

We all have a shoebox or drawer filled with miscellaneous old tech and junk that you haven't looked through since 2018. Whether it's Arduino Nanos, dusty ESP8266s, old PIR sensors, or just a bunch of ...

[Jean-Christophe Rona] found himself with some free time and decided to finish a project he started two years ago, reverse engineering cheap 433MHz home automation equipment. He hopes to control his ...

This project modernizes a previous Arduino Mega-based LED grid installation using an ESP32 WROOM-32 development board (TTGO with OLED display). The system provides WiFi/Bluetooth-enabled control of ...

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The Joule Thief Circuit is a simple and clever electronic design that can power an LED using a nearly dead battery.