Transferring the circuit to a bigger breadboard.
Adding the LCD display for the Arduino-based digital clock.
I want to make a digital clock. Not from the scratch, I’ll use whatever modules I already have.
Practicing to crimp open barrel terminals.
A tool to test devices for short circuit or big inrush current.
My previous post about the Mystery Transformers wrongly assumed which ones were the primary and secondary windings.
I bought two used transformers. They were broken.