Flash with WebSerial polyfill for mobile browsers

[kennethklee]

Describe the problem you have/What new integration you would like

I'd like to update a device (I gave to a friend) with my mobile phone.

Please describe your use case for this integration and alternatives you've tried:

I don't have a laptop I can bring to my friend.

Tried to flash a device with my mobile phone, but couldn't get dashboard or web.esphome.io to work because mobile browser (Android Chrome) doesn't support WebSerial.

Additional context

There is a WebSerial polyfill that uses WebUSB, which can be used on mobile browsers.

[kennethklee]

this looks to be already done upstream.

https://github.com/espressif/esptool-js/issues/109

[kennethklee]

should be in [email protected]. whenever there's a release with anything past that, i'll close this.

[kennethklee]

noticed esptool-js was upgraded to 0.5.3. this has been satisfied.