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SparkFun will be closing early at 3:30 Friday 5/27 and remain closed Monday for Memorial Day (5/30). Orders placed after 2pm MT on Friday (5/27) will process and ship out on Tuesday (5/31).

Member #30271

Member Since: January 7, 2008

Country: United States

  • This minature solar cell worked well for driving a couple of mosfet logic level gates, using only a hi-brightness red led. You don’t get much extra power, just enough voltage across a 1 Meg resistor to operate the gate. Previously, i tried the old “red led as a voltage generator” idea, but while that got 2.1 volts in sunshine, it wasn’t enough to activate the mosfet with only another red led as light source.

No public wish lists :(