The enclosure mounts to the stem of his bike. It houses an Arduino board with a data logging shield of his own design. That shield holds an SD card for storage, and breaks the other pins out as ...

How the platform helps streamline the design process. The custom options offered.

To test each revision of the firmware, the folks at Adafruit broke out their Arduino data logging shield to press the watch’s button once a minute (activating the display) and measuring the ...