LED Interfacing with PIC Microcontroller: Embedded C program with circuit using pic microcontoller

How to interface LED with Microchip’s PIC microcontroller? How to connect LEDs to a PIC microcontroller? LED interfacing is the stepping stone for microcontroller development. This is a simple embedded program for PIC 16F877A to interface LEDs, suitable for beginners who wish to study basics of embedded microcontroller programming. The program is developed through Micro CΒ compiler, one of the best solutions for embedded programming in PIC family. It is compatible for Windows XP and Windows 7 platforms and comes with internal burning tools. This PIC circuit is a beginner circuit, do this PIC project to explore the world of microcontrollers.

LED Interfacing with PIC Microcontroller Embedded C program with circuit using pic microcontoller

Algorithm for implementing this PIC project

  1. Specify the output port [here PORT B is used to connect LEDs, So TRISB=0Γ—00; comment is used for specifying the output port]
  2. Start infinite loop [while(1){} is used here]
  3. Pass 0Γ—00 value to the output port [PORTB=0Γ—00;]
  4. Provide a delay. The inbuilt delay function, that is delay_ms(); gives some delay. You can change the duration of LED blinking by giving any value to the calling field of this function. For example delay_ms(1000); will give 1 second delay.
  5. Pass 0xFF value to the output port [PORTB=0xFF;]
  6. Provide a delay [delay_ms(1000);]
  7. Repeat the loop.

LED interfacing embedded C Program for PIC microcontroller

void main()
{
TRISB=0Γ—00;
while(1)
{
PORTB=0Γ—00;
delay_ms(1000);
PORTB=0xFF;
delay_ms(1000);
}
}
The while loop will execute infinitely. So all 8 LEDs connected to PORT B starts blinking with 1 sec delay. This program is tested and verified under i-St@rΒ laboratory.

Read further: Loops in C programming

LED Interfacing with PIC Microcontroller Embedded C program with circuit using pic microcontoller

Circuit diagram of PIC project

What is Next?

Now we want to build a .HEX file for this program and then burn it in to our PIC microcontroller..! Dig further

 

For more detail: LED Interfacing with PIC Microcontroller: Embedded C program with circuit


About The Author

Ibrar Ayyub

I am an experienced technical writer holding a Master's degree in computer science from BZU Multan, Pakistan University. With a background spanning various industries, particularly in home automation and engineering, I have honed my skills in crafting clear and concise content. Proficient in leveraging infographics and diagrams, I strive to simplify complex concepts for readers. My strength lies in thorough research and presenting information in a structured and logical format.

Follow Us:
LinkedinTwitter

Leave a Comment

Your email address will not be published. Required fields are marked *

This site uses Akismet to reduce spam. Learn how your comment data is processed.