However, Arduino also offers this board without headers pre-soldered ... Additionally, the Nano and Micro feature 20 digital pins, labeled as RX, TX, D2 to D13, and A0 to A5.

It’s the Arduino Micro, a very neat little board designed for breadboard use. Ostensibly an upgrade of the long in the tooth Arduino Nano, the new Micro takes all the best features of the new ...