How to Make LED Chaser using NE555 & CD4017

The LED Chaser Circuit is basically a serial switching of LED’s in a continuous manner. ie In a short duration of time they are being switched & results in the formation of chasing pattern.

Hardware Required

Buy all Components for LED Chase Circuit from Utsource.net

• CD4017 Decade Counter IC
• 555 Timer IC
• IC Bases (8Pin, 16Pin)
• Red LED 10x
• Resistor (47k, 10k x10, 2.2k)
• Variable Resistor 50k
• Electrolytic Capacitor 10uf
• Ceramic Capacitor (104)
• 9V Battery with Clip

LED Chaser Circuit

Useful Steps

Step 1 Solder All LED’s

Step 2 Solder Base of both IC’s

Step 3 Solder All Resistors

Step 4 Solder Both Capacitors

Step 5 Solder Variable Resistor

Step 6 Solder Power Connector

Step 7 Let’s Power up the Circuit