Special thanks to the authors of the following projects - ePaper Calendar and bilder.org !
I picked up the ePaper display and the associated header from the good folks at SparkFun!
I needed to build an hour meter for a 240v heater in the shop. I could have used a COTS power adapter and a mechanical hour meter, but I couldn't pass up the chance to use ePaper.
The meter tracks total time since last reset (via a jumper) and the current/last amount of time the unit ran. I used an ePaper display so the display would be readable even when the unit was powered down.
The code is very ru