A DHT11 monitors the temperature and humidity. A charge circuit and lithium battery provide power. Finally, the watch displays the date, time, and other data with an LCD from a Nokia 5110.

Tronixstuff has a borderline insane tutorial series going, and as of now, 27 chapters have been published. It's essentially the Arduino Bible, but the two most recent additions in particular have ...

The final construction is cool looking in a techno-punk way, and is fairly compact. One might even say sporty. Posted in Arduino Hacks Tagged arduino, dht11, sports, sporty, tutorial, watch ...