These are some great DIY projects that you can do for cheap.

Learn how to repurpose your spare ESP32 boards into cost-effective presence detection sensors using the Tommy Sense ...

[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 ...

Objectives Detect motion using a PIR sensor. Adjust detection sensitivity using a potentiometer. Activate a 3-stage buzzer alarm. Flash LEDs sequentially during an alert. Configure shop hours through ...