AVR

History

The AVR is a family of microcontrollers developed by Atmel (now part of Microchip Technology) in 1996. It is widely used in embedded systems, particularly in hobbyist and educational projects, such as Arduino.

Features

8-bit architecture: Processes 8 bits of data at a time.
RISC architecture: Reduced Instruction Set Computing for efficient performance.
Flash memory: In-system programmable flash memory for code storage.
Peripheral support: Includes various peripherals like timers, ADCs, and communication interfaces.

Example Code

Here is a simple AVR C program to blink an LED:

#include <avr/io.h>
#include <util/delay.h>

int main(void) {
    DDRB |= (1 << PB0); // Set PB0 as output
    while (1) {
        PORTB ^= (1 << PB0); // Toggle PB0
        _delay_ms(500); // Delay for 500 ms
    }
    return 0;
}

This code configures the AVR microcontroller to toggle an LED connected to pin PB0 with a delay, creating a blinking effect.

Last modified: 14 December 2024