suggest: use v-usb for storage device

[kidswong999]

With ESP8266, uploading code file is difficult, because ESP8266 has no USB controller, not pyboard.
But, there are some way to create a usb device.
1. use another chip with USB controller, like ATmega8U2.
2. use another chip without USB controller, like ATmega8, and use v-usb to simulate a USB device.
https://www.obdev.at/products/vusb/index.html.
the second one is cheaper.

maybe the solution works?

[deshipu]

Excellent ideas! Keep us posted how it works out!