STK500 client in Python

I needed to understand the STK500v1 protocol used by avrdude to flash Arduino in order to reimplement it as a embedded one in C for the ESP32.

This is the end result. Works only for flashing a binary in the FLASH memory. You can also dump the FLASH memory.

Requirements

pip install pyserial progressbar2

Usage

In the arduino, export your firmware as a binary (Sketch > Export as Compiled Binary). Then:

python hex2bin.py PATH_TO_YOUR_FIRMWARE.hex firmware.bin

Then you can upload it:

python binuploader.py upload /dev/ttyUSB0 firmware.bin

You can also dump the memory:

python binuploader.py dump /dev/ttyUSB0