In this article, you are going to learn how to make a led chaser circuit with 8 different effects. Led Chaser is a circuit which blinks LEDs in a particular frequency and particular pattern so that it provides the effect of illusion, LED are moving. These LED chasers are used in decorative lighting. The LEDs lights one by one for a period of 1second and the cycle repeats giving the running light appearance.
Contents
For more information on LED chasers look here.
LED Chaser Circuit Diagram:
Components Required:
- PIC16F84A Microcontroller
- 18 Pin IC Base
- 12 x 470E Resistors
- 4.7K Resistor
- Tactile Switch
- 4MHz Crystal Oscillator
- 2 x 27PF
- 220n Capacitor
- 47uF Electrolytic Capacitor
- 7805 Voltage Regulator
- 2 Pin JST PH Connector
- 12 x 5mm Green LEDs
LED Chaser PCB Layout:
Top View:
Bottom View:
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Download LED Chaser Code, Circuit Diagram, and PCB Layout.