The Unified Program and Debug Interface (UPDI) is Microchip’s proprietary interface for programming and on-chip debugging, and has become the standard on AVR MCUs after Microchip’s purchase of Atmel.

For this project I use Atmega328P which is an old but lovely microcontroller used in Arduino Uno. Keep in mind that Atmega328P is NOT RECOMMENDED FOR NEW DESIGNS and we are going to use it only to ...

This repository is designed to teach you, step by step, how bootloaders work and how to write your own customized bootloader for an AVR microcontroller. A bootloader is a small, specialized program ...

This article shows that working with microprocessors has become very straightforward these days. Thanks to the AVR-microprocessor and the well-known BASIC programming language success is assured.There ...

[Jeff Keyzer] has a new version of the HV Rescue Shield available. This tool allows you to use an Arduino to reset the fuse bits on AVR microcontrollers. This is necessary if you make a mistake and ...

It’s a well-known fact that all devices in a system need some kind of communication method to interact with each other inorder to maintain proper functioning of the whole system. In practice we can ...