IC 4017 Circuits and Projects - Electroschematics IC 4017 circuits and projects for hobby electronist and school. Really great stuff on 4017 IC. IC 4017 circuits and projects for hobby electronist and school. Here is a simple and low cost automatic bathroom light circuit. The light automatically turns on when the . 4017 IC Datasheet LED Chaser Using CD 4017 | Circuit Diagram Here is a very simple circuit of a LED chaser using CD 4017 IC. 4017 is a CMOS decade counter IC. It is also called Counter or Divider. With the help of this chip you can easily build a nice LED chasing effects. Decimal Counter Circuit Diagram using 4017 Decade Counter IC Circuit Diagram and Working Explanation. The IC 4017 pin configuration is show in figure. Here the pin no. 13 “CLOCK ENABLE” should be grounded for the chip to count the events or clock pulses, the pin no 12 “CARRY OUT” is for next counter chip, this pin is connected to next chip clock pin if we were to increase the counter capacity. LED chaser circuit using IC 4017 and 555 - Mechatrofice Question on LED chaser circuit. Getting a small project together for a scout group. Most of the 4017 & 555 circuits are pretty much the same with the variance of the resistor and capacitor values from ground to Vcc across pins 2,6,&7.