An itty bitty power provider

SiliconFarmer found this awesome little solar cell on Digikey that puts out 4V at 50 microamps. Not a lot of juice, but add a 0.33F supercapacitor, and leave it in the sun for about 7 hours, and you have enough energy to run an Atmega168V in active mode at 1MHz for about 22 minutes, or in sleep mode for 4 days (!).

SolarStor

Parts List
Solar Cell: CLA289-ND on digikey
Super cap: P11064-ND on digikey
Diode: MMBD914-FDICT-ND on digikey
PCB from the
DorkbotPDX PCB Order

Comments

forest graffiti...

wow..... that looks serious.. it would be fun to create some sound machine in a tree that triggers when someone walks by... forest graffiti?