There are many reasons to build your own Arduino circuit on a protoboard or ... it instructs the microcontroller to run the code that’s already stored inside. Original Circuit Diagram: Arduino UNO R3 ...

Using a circuit simulator ... and having an Arduino cosimulation is great. But there is one really important issue that may get resolved eventually. Normally when you draw a schematic you can ...

If you want to make your own USB to Serial Converter Module, then refer this tried & tested circuit diagram of the USB to Serial Converter ... Before that interesting move, I would like to introduce ...