A Modular Battery Design : Solving the Smart Home Battery Problem

Build a low-power smart sensor system with a tailored board, MOSFET switching, and ESP32 deep sleep, giving up to 1.7 years usage between charges ...
EDN

Line Following Robot

The motors I used for this robot are 2 servomotors modified for speed. You can also use other motors if it’s good enough. I didn’t have any so I modded 2 servomotors. How to Mod the Servomotors (look ...