In this post on the Arduino.cc forums and this blog post, [Majek] announced that he had fooled the AVR microcontroller inside and Arduino into writing user data into its own flash memory during ...

/* Copyright (c) 2015 Ivan Grokhotkov. All rights reserved. * This file is part of eboot bootloader. * Redistribution and use is permitted according to the conditions ...

twiboot is a simple/small bootloader for AVR MCUs written in C. It uses the integrated TWI or USI peripheral of the controller to implement a I2C slave. It was originally created to update I2C ...