Simple LED nightlight

A minimal darkness-detecting circuit. Learn how to build it here.
CeilingCeiling Stupidly bright.Stupidly bright. throwie!throwie! lights off?lights off? Lights onLights on CompleteComplete With LED, trimmedWith LED, trimmed With LED, alt viewWith LED, alt view With LEDWith LED Phototransistor added, alt viewPhototransistor added, alt view Phototransistor addedPhototransistor added PhototransistorPhototransistor 1 k resistor1 k resistor Transistor, resistorTransistor, resistor ComponentsComponents DiagramDiagram Test outTest out Simple? Yup.Simple? Yup. DarkPumpkin - 01DarkPumpkin - 01 DarkPumpkin - 02DarkPumpkin - 02 DarkPumpkin - 03DarkPumpkin - 03 DarkPumpkin - 04DarkPumpkin - 04 DarkPumpkin - 05DarkPumpkin - 05 DarkPumpkin - 06DarkPumpkin - 06 DarkPumpkin - 07DarkPumpkin - 07 DarkPumpkin - 08DarkPumpkin - 08 DarkPumpkin - 09DarkPumpkin - 09 DarkPumpkin - 10DarkPumpkin - 10 DarkPumpkin - 11DarkPumpkin - 11 DarkPumpkin - 12DarkPumpkin - 12 DarkPumpkin - 13DarkPumpkin - 13 DarkPumpkin - 14DarkPumpkin - 14 DarkPumpkin - 15DarkPumpkin - 15
View on Flickr