upy_flasher
how to ...
... use it
./flash.py --help
./flash.py {arguments}
{arguments} {default}
-p --port /dev/ttyUSB0
-b --binary firmware/esp32-20180627-v1.9.4-225-gd8dc918d.bin
-e --erase not set / false
-c --chip esp32
-u --upload []
-u can be used multiple times for multiple files
-h --help