[Chris] wrote us to share a neat technique he has been using to program the Arduinos ... he is using his computer’s sound card. He builds a simple dead bug Arduino (which he calls an Audioino ...

When comparing the Raspberry Pi and Arduino, it's no secret that the Pi is undoubtedly the more powerful board. It is, after all, a single-board computer ... to program hardware with the Pi ...

Although a “CommsLink” module providing an RS-232 port was available back in the day, it’s become hard to find, inspiring [James] to design a completely new module based on an Arduino Nano.