FindMy firmware for Lenze st17h66

The source for FindMy.hex is here: https://github.com/biemster/st17h66_FindMy

How to use:

PySerial needs to be installed, then just simply type

$ ./flash_st17h66.py <your base64 adv key>

Special thanks to:

@vadimkozhin for help with the flashing process and developing the advertisement code.