Any tricks to soldering something so small, I’m trying to attach one board to the other and the connections are so tiny I’m butchering in, any help is appreciated. (I' ll be de-soldering in the me...
I want to power a constant current LED (145mA & 200mA) at 19-21V.Since this will be powered by Li-ion battery connected to a tp4056, which is the most efficient way to boost the voltage from 3.7V ...
I am trying to control a remote via the gpio pins on a raspberry pi. I don't want to have to use relays because of the space they take up and the mechanical noise. The problem is the pads of the r...
If you have a high frequency signal, going through the collector - emitter of a general purpose transistor, can you just turn it on/of with a low frequency signal at the base?If you leave the transist...
