With the advances of shrinking technology it’s becoming more and more easier to roll your own every day items. Ever thought of making your own watch ? Sure you have, it was probably going to turn out larger than you anticipated too huh? How’s 1.5mm thick sound ? Sounds pretty good to me too. Zak has a really awesome writeup of him rolling his own watch.
The display is a 0.96″ OLED display (128×64 pixels), it uses a DS3231M RTC, 2 LEDs, a buzzer, a 3 way switch and runs off of a 150mah LiPo battery. Impressive! Features of the software include, window animations, up to 10 alarms, games, stopwatch, and flashlight mode.
Power consumption numbers are decent too. 6ua in sleep mode, and 10ma with normal on. That means depending on how much time you spend with the screen on will dictate how long your charge will last. This puts you anywhere between 15 hours and 3 years. With those sort of numbers and a modest use of your watch you should be able to get 15-30 days out of a single charge.