This project started out with a simple goal: build somthing that was a step up from my tried and true basic "feature watch" that I could add my own behaviors to. I knew that were available small arduino boards that could potentially power such a device, and with a few weeks of research, I gathered the necessary materials to build a prototype:
(For the curious the primary components of the prototype were an Adafruit Feather M0 board, Adafruit's Nokia 5510 display breakout, and a Sparkfun Blackberry trackball breakout (since disconinued)Although the prototype was moderatly successful, there were a few issues I would never be able to get arround. The thing was quite bulky and the exposed wireing had durrablillity issues. It is for this reason I have set out to build a succesor on a custom PCB with a slightly adjusted feature set.
The new version will keep the same microprocessor as the prototype (an ATSAMD21) an the same display, but will use a 5-way switch in place of the trackball (done for reasons of simplicity) and add a 9-DOF chip.
Dylan Brophy
Arduino Enigma
technolomaniac