An ARM Cortex-M0 32 bit micro processor (nRF51822) with 2.4 GHz Radio and other goodies all in a breadboard-compatible DIP16 package .. how could you say no?!
So far, so good. Literally 5 minutes to the first blinking LED, and hours of fun followed .. this is an awesome little package.
As always, all notes, schematics and code are in the Little Electronics & Arduino Projects repo on GitHub.
