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 ...