Dark activated LED flash circuit
Source: InternetPublisher:JFET Keywords: LED battery power display power supply Updated: 2021/04/11
This circuit can be used as a small beacon or marker light fixture, toy or novelty item. R1 is a photoresistor, which is a dark resistance or CDS photocell greater than or equal to 10 kΩ. C1 determines the flashing frequency. Dark activated LED flash circuit:
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