Multiplexing seven segment display use PIC Microcontroller and Mikro C

In this tutorial we will learn how multiplexing 7 segment display whit microcontroller. Here I am use PIC16F877A micrcorontroller and 3 digit seven segment display.

You can watch the following video or read the written tutorial below.

7 segment display

seven segment display has 7 segment and each segment emit light. When segment a,b,c,d,e & f emit light than the display show the decimal value 0.

3 digit 7 segment display

0.56'' - digit size

Circuit Diagram

Mikro C Code for Common Cathod:

	// Common Cathod display
	unsigned int display[10] = {0x3F,0x06,0x5B,0x4F,0x66,0x6D,0x7D,0x07,0x7F,0x6F};
	char i;
	char digit1,digit2,digit3;
	void main() {
	TRISB = 0X00; // PORTB is output
	PORTB = 0X00; // Clear PORTB
	TRISC = 0X00; // PORTB is output
	PORTC = 0X00; // Clear PORTB
	i=101; // 7seg show the 101
	while(1){ // Endless loop
	digit1 = (i/100);
	PORTB = display[digit1]; // MSB digit1
	PORTC = 0X01;
	delay_ms(5); // 5ms delay
	PORTC =0X00;

	digit2 = (i/10)%10;
	PORTB = display[digit2];
	PORTC = 0X02;
	delay_ms(5);
	PORTC = 0X00;

	digit3 = i%10;
	PORTB = display[digit3];
	PORTC = 0X04;
	delay_ms(5);
	PORTC =0X00;
	}


	}