FREE CIRCUIT DIAGRAMS 4U: Bicycle back Safety Light (IC 555)

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Sunday, December 06, 2009

Bicycle back Safety Light (IC 555)

Lots of road accidents happen as a result of not having back lights specially bicycle riders have to face this so I decided to introduce a new circuit.By using this circuit you can give a attraction to your bicycle too.This circuit can be operated with 3V...try this

Parts:

IC1,IC2________7555 or TS555CN CMos Timer IC

C1______________1µF 63V Polyester Capacitor

C2_____________10nF 63V Polyester Capacitor

C3____________100µF 25V Electrolytic Capacitor

R1_____________10K 1/4W Resistor

R2,R9,R10_____100K 1/4W Resistors

R3-R8,R11-R16__10R 1/4W Resistors

R17___________150R 1/4W Resistor

D1-D13_____Red LEDs 5mm. or bigger, high efficiency

SW1____________SPST Slider Switch

B1_______________3V Battery