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 ...

ESP32s are surprisingly good AI lie detectors.

[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 ...

The PIR sensor successfully detected motion and triggered the Arduino to turn ON the built-in LED. The LED remained OFF when no motion was present, confirming correct circuit and code functionality.

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