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555 timer Led Flasher circuit

This LED Flasher circuit is based on the 555 timer IC .The LED Flasher circuit diagram is very simple and require few external components . When the circuit is working the red LEDs will flash at a set frequency one by one like at the railway crossing indicator .
The circuit must be powered by a powers supply which can be provide an output voltage between 6 and 12 volts .

Electronic Circuits: 
Circuit Diagram: 
555 timer Led Flasher circuit diagram electronic project