Flashing Led Circuit Using 555 Timer. The 555 timer chip is a very versatile ic because when connected correctly it can it can create pulses of current at specific time intervals decided by the resistor capacitor rc network. The speed at which the led d1 is turned on and off is set by the values of r1 and r2.
Place the 555 timer chip in the middle of the breadboard make sure to put it in the right way round other wise when you will connect the battery the chip will burn. Working of the circuit. Ton 0 69 r1 r2 c toff 0 69 r2 c.
If it doesn t work check the connections again.
555 timer ic is used here in astable operating mode which generates a continuous output in the form of square wave via pin 3 which turns the led on and off. Place the 555 timer chip in the middle of the breadboard make sure to put it in the right way round other wise when you will connect the battery the chip will burn. The duration of on off depends on the time cycle of the square wave. Working of the circuit.
