ESP8266 Community Forum

- Sun Jan 20, 2019 8:03 am #80161 Hello,
Google was unable to help me, so, maybe you can...
I am interested if there is project for creating USB bridge over 2 ESP8266 devices (one will act as host, second will act as client). I know that speed between those devices will not be fast, but it's not so important, as I want to make it for printer / scanner.

So, my goal is - connect one ESP8266 device to printer and second device to PC and print from there.

- Mon Jan 21, 2019 4:59 am #80178 Short answer: no, an ESP8266 doesn't have a USB port.


"But", you say, "I'm looking at a development board (NodeMCU/Wemos/...) and I'm sure seeing a USB port on it."

Maybe so, but this is merely a USB -> Serial convertor (which is always a USB client) for you to be able to talk (program/have a little terminal/do some serial stuff using a PC) to the ESP.
The ESP itself only has a UART (= serial) connection to talk to the outside world.

Assumption is the mother of all f*ckups. At least: that's what I'm assuming.

- Mon Jan 21, 2019 9:13 am #80187 A Raspberry Pi Zero W might be a good module to start from.

- Tue Jan 22, 2019 3:41 pm #80217 Agreed with btidey

Use a Raspberry Pi Zero which will set you back 5 usd when using the non-wifi version and 10 USD for the3 wifi version and use that as a printer server.

https://opensource.com/article/18/3/pri ... spberry-pi

ESP8266 and ESP32 do not have a real USB port so that is not an option.

Luc

http://lucstechblog.blogspot.nl