For industries that produce switches and socket and there would be a need to test the mechanical durability and electrical durability.
Sketch of transistor tester project so it's much simpler to study, modify, verify and upload to an Arduino
This project fixed my problems with hot and cold rooms and logs details about how it was done, to compare to my ecobee4 thermostat details.
People and politicians say that respirators cost you more than 2200 Dollar ?!!! costs a lot so I made an automatic respirator that costs 55$
Fly away in this plane that moves up and down in real-time as the Boeing stock price rises and falls!!