Thank you for taking the time to explore the avrprojects website. Here you can find projects about AVR 8-bit microcontrollers. We hope you`ll find these pages both educational as inspiring.

How to control a servo motor.

servo motor controller pic2

In ths project you can learn how to build a servo controleer motor with the ATMEGA328 board. The position of the servo motor is controlled by the software (sweep back and forth) or by a potentiometer.

How to control a stepper motor

stepper motor controller

In this project you will learn how to control a stepper motor using the ATMEL328 board and the L293D motor control chip. The stepper motor can be turned left or right with a slide switche .

PIR sensors are also referred to as Passive Infra Red sensors. They can detect motion of a human or animal from 2 meters distance.  PIR's are basically made of a pyroelectric sensor, which can detect levels of infrared radiation.

The MAX7219 is a Integrated Circuit that can drive 64 individual LED's or up to 8 digits of 7-segment display's or a LED matrix of 8x8. The driver implements a SPI interface that can be controlled from a microcontroller using only three I/O pins.

This project is based on the timer/counter 0 example. It shows time, date and temparature on 7 segment displays. Instead of the LCD display the time is shown on a four digit 7 segment display with common cathode. The date and temparature is shown on a 7 segment LED display with comon anode.

An RGB LED is a LED which has three LED's integrated in one packaging. These LED's have the colors Red, Green, and Blue. The RGB LED used here is a hyperflux LED with common cathode, which can draw 20mA current. Such a LED costs about 2€. With these three colours you can mix to any colour.