Easy To Build LED Chaser Face

Overview

The project uses a PIC16F684 microcontroller to control this LED chaser face wherein various patterns are followed by the LEDs.

Details

Different patterns can be made and added with the help of the SMD PIC16F684 microcontroller. The design places the microcontroller on the other side of the PCB. An I/O pin of the microcontroller is connected to the positive side of each LED. Two I/O pins will be left over since there are only 10 LEDs total and the microcontroller has 12 I/O pins. The negative side of each pin is connected together and then connected to Ground. A very common 3V CR2032 button cell battery is used by the LED face. The ground on the button cell holder as well as the power are connected to the PCB, GND, and +3V.

A glue was used to cover the SMD microcontroller in order to avoid static electricity. Between the +3V of the button cell holder and the +3V on the circuit board is the additional ON/OFF switch. the MPLAB v8 and PICC Lite were used to create the code. During operation, a specific set of lights turn ON and waits for a delay.