Simple AVR Bootloader tutorial

July 21, 2018

I’ve used AVR microcontrollers both for hobbies and work projects. These versatile microcontrollers ran the code I programmed them with, but once the final device was shipped, it was hard to change the firmware (the software running on the microcontroller): The user needed an ISP programmer and the software tools to update the firmware. A more convenient solution is to use a bootloader. The bootloader is a small program that…

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