In this article we are going to teach you, how to make an Led chaser with only 4017 easily with few components. This project is so easy even an inexperienced person can make it very easy. Many projects are available on the internet naming Led Chaser circuit using 4017 and 555. But in this project we have cleared that how can you make LED chaser with only 4017.
In the diagram given above we have draw a complete sketch of Led chaser with only 4017 ic.
4017 IC pins Detail
Here is pins detail of ic 4017 decade counter ic
- LEDs – 11 any color
- Multi color Led 5mm
- 470 ohm resistor
- 330 ohm resistor
- IC 4017
- PCB or Breadboard
- 9v battery or power supply
Working of Circuit
CD4017 or 74HC4017 or HCF4017BE is a 16 pin CMOS decade counter ic with 10 decoded output. Led chaser with only 4017 IC is based on this ic. CD 4017 ic is also called ‘Johnson 10 stage decade counter’. It gives output signal one by one in form of sequence when a clock signal from the clock input (pin 14) given. When 1st clock input is given ,it gives output on pin no 3 (output 0) and as clock 2 is given it give output 1 on pin no 2 and so on.
Reset pin (pin 15) is used to reset the ic to zero- It is used to reset the counter to zero. The function of this pin (reset pin) reverts the sequence back to the initial state (zero state).
In this circuit 3 color LED is used to given the pulse on point no 14 (clock point). If you want to give pulse from any other source like from timer ic or from flip flop circuit you can do so easily. we use 555 ic normally to trigger 4017. But in this led chaser circuit with only 4017 project we have used tri-color-led for triggering.
Video Detail of this projects
If you want to watch the working of this project please click here. In this video we have make the project for more clearing in efficient way. By following this video every body can make this project at the home.
LED Chaser Video
Plz Watch video for full detail of building step by step
For any question about any type of circuit you can contact us freely.