I'm using Arduino(nano/uno/mega) conneted with JDY-10M bluetooth. i want have a upper computer software based on win10 system which is going to OTA firmware on Arduino. Due to the JDY-10M is mesh connection, so the right Arduino could be select is available.
Interested! I have done very similar project in which I used esp8266 and made OTA connection to update the firmware using wifi, without connecting it to serial port. I can do your project easily!