This 555 timer Lamp signalization circuit can substitute the signalization relay or other signalization circuits much expensive . The heart of this circuit is a 555 timer circuit that works on a fixed oscillation frequency . This auto lamps signalization electronic circuit can be powered from a 12 volts power supply ( you can use car battery but don’t connect circuit directly to the car battery ) . The circuit also offers visual indication for the driver ( the RED Led and GREEN LED must be mounted to offer a visual indication to driver ) for right side and for the left side .
This LED Flasher circuit diagram is based on the 555 timer IC .This 555 timer LED Flasher circuit 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 .
This electronic mosquito repellent schematic circuit diagram based on the 555 timer IC is a simple and useful mosquito repellent circuit . This mosquito repeller circuit generate an ultrasonic sound with a high output frequency that allows spreading mosquitoes within a wide radius . The circuit is quite simple and require few external components .