Hello today we are going to make led chase circuit and for that we are gonna need a NE555 Timer IC and also CD4017 IC are gonna be the main components you are also gonna need a 2 resistors 220 ohm and 1 kilo ohm 1 non polar capacitor with 100 micro farad and 16 micro-farad 50 volt polar capacitor and some 10 kilo ohm variable resistor and 10 leds any color you like