I have been working on a project watch which would work best if it is entirely sealed (to waterproof it). The watch may need future updates, but I will be unable to send code to it using a usb connector or isp programmer without opening the case. What is the best way to connect my PC with this watch wirelessly?
I gather that the serial ports are usually used to send code via the usb, and that most Bluetooth modules use serial coms to communicate with the Arduino.
The Arduino that I am using is an Arduino Pro Mini clone.
Any help will be greatly appreciated.