FTDI chips are an effective way to debug ARM projects, using the SWD protocol. FTDI’s chips have varying capabilities, but most can do more than just acting as a USB-connected COM port.

Serial communication has remained largely unchanged for decades, meaning devices designed many years ago can still operate today using the same simple connection.

I bought an air quality sensor for my Raspberry Pi, and they've written this Python script to show how to use it: try: import struct except ImportError: import ustruct as struct import serial uart ...

Using the same sound card setup, he managed to get bidirectional communication off an ATtiny44a. You can see his demo video of this here.

Once communication is established with serial devices, multiple programming options are available with groov EPIC to link devices. PAC Control provides English-language commands, and the included Node ...