AVR Tutorials

I2C interface (also referred to as IIC or TWI) is a widely used interface in embedded applications.[...]

If you have programmed anything with C, you should be familiar with common data types like char, uns[...]

Volatile is probably the least documented keyword in most tutorials and books. This is the primary c[...]

GPS modem is a device which receives signals from satellite and provides information about latitude,[...]

Connecting a button as an input to a micro-controller is a relatively easy task, but there are some [...]

In a past tutorial, we saw how to control a servo using AVR. This tutorial will aim at interfacing a[...]

The keypad is the most widely used input device to provide input from the outside world to the micro[...]

In this new tutorial, we will be interfacing an LM35 based temperature sensor with ATMEGA32. The thr[...]

In this tutorial, we are going to interface ultrasonic rangefinder with the all popular ATMEGA8. An [...]

In this tutorial, we are going to learn something interesting which is already sued by many people t[...]

The shift register is one of the vital things to learn while designing an embedded system. Using sh[...]

Servo motors are a type of electromechanical actuators that do not rotate continuously like DC/AC m[...]

In this tutorial, we will be interfacing an HD44780 character LCD. Although as an alternative you ca[...]

The article covers how to interface an accelerometer with the atmega32/atmega16. Before proceeding, [...]

A seven segment display is a set of seven bar-shaped LED (light-emitting diode) elements, arranged t[...]

AVR lock bits and fuses are one of the topics that may cause some confusion. If you missed something[...]

Serial Peripheral Interface (SPI) is the fastest synchronous communication interface allowing data [...]

After we've learned how to performs simple ADC conversions on AVR microcontroller we can move forwar[...]

Microcontrollers are meant to deal with digital information. They only understand '0' and '1' value[...]

In the previous tutorial, we learned how to transmit data over USART. By using simple functions, we [...]

In the previous part of the USART tutorial, we have discussed the most straightforward way of implem[...]

AVR USART tutorial is going to be multi-part tutorial as this peripheral is a sophisticated device a[...]

All AVR microcontrollers have an internal watchdog timer that can be successfully used in your proj[...]

AVR microcontrollers have some amount of EEPROM memory on-chip. For instance, Atmega328 has 1K of b[...]

In many cases our embedded projects have to deal with various constants or arrays that aren't change[...]

Until now we used pretty simple program examples where all code fit into a single file and didn't lo[...]

We have almost gone through main modes of AVR timers. It is impossible to review them all in more de[...]

Atmega328 has one 16 bit timer, which is more powerful comparing to 8-bit timers. A 16-bit timer is [...]

Previously we have revealed only two Timer/Counter0 modes: Normal and CTC. So far there are a couple[...]

As our selected Atmega328 microcontroller has three timers, I think it is best to analyze them separ[...]

Timer/Counters are probably one of the most complex peripherals in microcontrollers, but they are m[...]

Before we go to the code part, let's what is needed to run interrupts successfully. These condition[...]

Earlier I've made a mistake by referring this tutorial to first AVR family microcontrollers like Atm[...]

Controlling pins is one of the first things to learn when learning microcontrollers. It seems that e[...]

You can be encouraged to use various types of AVR development tools. Most of them cost money to get [...]

As we talked earlier, there are many AVR programmers to choose from. The simplest ones are bitbang p[...]

There are several things you need to do before learning AVR. First of all, you need an AVR chip. Bet[...]

Any AVR microcontroller is an 8-bit computer in a chip designed and manufactured by ATMEL Corporatio[...]

AVR family is one of the leading 8-bit microcontrollers in its family. There are many reasons why ma[...]