I’m currently stuck at home with some kind of respiratory crud that seems to be going around (and watching my symptoms to make sure it doesn’t evolve into pneumonia), so I decided to sort through some of the stuff in my various parts organizers. To my surprise I discovered that I’ve managed to accumulate about 20 Arduino Nano PCBs. I guess I keep on ordering them thinking I’m running low when I’m really not.
In an earlier article I had written that the Nano was an Arduino product that didn’t suffer from an oddball pin layout. Something like an Uno, which is probably what most people think of when they hear the word “Arduino” is a nice little PCB, but it has a goofy gap between the socket headers on one side that precludes using a standard 0.1″ perfboard to assemble an ad-hoc shield. The Nano, on the other hand, has a physical footprint that is almost, but not quite, equivalent to a 30-pin DIP. It is also a lot smaller than an Uno or other full-size Arduino, and it has the same MCU.