Bike tail LED light flash

386

03:53:48

This is a bike tail LED light flashing as a Bike Blinky Safety when we use the bicycle(normal bike) at night. I used IC1 IC555 Oscillator signal.The signal is output to a lot  super bright LED
                         OPERATION OF THE CIRCUIT:
       I used IC1 NE555 Oscillator signal.Signal is output at pin 3 of IC1, whose frequency can be determined by R1(4.7k), R2(100k), C1 and output voltage to a current flowing into pin B of Q2. Q2(NPN bipolar transistor) makes LED1-LED10(from top) to light up. However, if the output signal voltage is 0 volts, Q1(PNP bipolar transistor) will work.The Q2 stopped LED11-LED20(from bottom) to be bright when a high voltage is applied again.

published 11 years ago

lenzrulz

11 years ago

Beautiful

Ifoegbu1

11 years ago

Thanks Dude

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