Wednesday, September 19, 2018

81 LED chaser using two 4017 IC

This circuit is an LED Chaser with 81 LEDs using two 4017 ICs and 555 timer
The circuit explained in this video here: https://www.youtube.com/watch?v=JoBsPduHEyc
PCBWay is the sponsor of this project
Website: www.pcbway.com

81 LED chaser using two 4017 IC

Circuit diagram:


81 LED chaser using two 4017 IC



Parts list:

IC 4017(2pcs)
IC 555
5mm LEDs (81 pcs)
1K resistor(9pcs)
10K resitor
3.3K resistor
470R resistor
2N2222 transistor(9pcs)
1uF capacitor
100K potentiometer
1N4007 diode

Video: