A transistor curve tracer will tell you a transistor's electrical parameters if you know which pin to connect to which test lead. Usually you can figure this out from reading its type number and ...

From a simple electronic toothbrush to complicated robotics systems, DC motors are present everywhere. In most of our previous Arduino projects, we have used these DC motors as actuators and ...

For the challenge, I wanted to send data from my computer's real serial port (RS232 9-pin connector). For that, I created an adaptor circuit because the voltages on a computer serial port are ...