Watch “Tutorial: How to design a transistor circuit that controls low-power devices” on YouTube Posted on November 2, 2019 by crackingcontraptions_3voi0v https://youtu.be/8DMZSxS-xVc Post navigation ← Watch “ESP32-CAM Video Streaming and Face Recognition with Arduino IDE” on YouTubeCuckoo Clock by MakerBot – Thingiverse → Leave a Reply Cancel ReplyYou must be logged in to post a comment.