I am trying to build a circuit which can drive six LEDs using two/four super-capacitors. I came across Sparkfun's Energy Harvester board here. I also want to use LDR to switch the LED drive circuit. How should I proceed? Thank you.
Six White LEDs: 3.2 volts, 20 mA
LDR's switching voltage: 0-2 volts (ON), > 2 volts (OFF)
Super-capacitors: 6 volts, 10 F ( I'm not sure this will be enough or not )