tinkerkid:
I've taken apart a cheap kitchen timer, and taken out the LCD. I want to try to drive it with an Arduino and shift register. I've heard that you don't want to use DC to drive these, so what voltage level of AC should one use? Also, are there any simple low voltage inverter circuits I could utilize for this?
how is the unit powered ?
it it has battery, very good chance that it is a dc device.
post a pic of the unit, but be prepared to toss it for one that has data sheets on what connects to what and what power to use and such.