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 ...

Support is provided in my Arduino Slave With Commands sketch to jump into this bootloader directly so that the master can then send the data necessary to reflash it. This code uses two bytes beginning ...

Security is something that’s far too often overlooked in embedded devices. One of the main risks is that if the device doesn’t verify the authenticity of incoming firmware updates. [Walter Schreppers] ...

Anyone who enjoys building electronic projects using the Arduino prototyping and would like to program their own Atmega328-PU chips. May be interested in a new Arduino prototyping kit and bootloader ...