LED Chaser Circuit | LED Chaser on Breadboard using Ic 555 and Ic 4017 скачать в хорошем качестве

LED Chaser Circuit | LED Chaser on Breadboard using Ic 555 and Ic 4017

This is the circuit of a simple LED chaser. The LEDs lights one by one for a period of 1second and the cycle repeats giving the running light appearance. The circuit uses two ICs (one is 555) to drive the LEDs. IC NE555 is the popular timer IC wired in the Astable Multivibrator mode. Resistors R1, VR1 and capacitor C1 act as the timing components and the output pulses are available from the output pin 3 of NE555. These pulses are given to the input pin 14 of decade counter IC CD4017. Out of the 10 outputs of CD4017, eight outputs are used to drive the LEDs. So that the cycle repeats. With the value of C1, each LED remains on for 1second. When one LED turns off, the second on turns on. This cycle repeats giving the running light appearance. VR1 adjusts the speed of LED chasing. Circuit Digram Link :- https://drive.google.com/file/d/1oiD2... Required Components 1. IC CD4017 x 1 2. IC NE555 x 1 3. Potentiometer 10K x 1 4. Resistor 1K x 1 5. Resistor 220 ohm x 1 6. Capacitor 100uF x 1 7. Ceramic Capacitor 100nF x 1 8. LED x 9 9. Power Supply 5V