luk6xff/usbmux

USB 2.0 two input channel multiplexer based on TS3USB221

usbmux

USB 2.0 two input channel multiplexer based on TS3USB221

Details

A simple USB2.0 2-channel multiplexer controlled using: UART(Serial) CLI and HTTP server available running at: usbmux.local.

Instalation

• Install vscode with platformio plugin (Versions: vscode[1.49.2], platformio[Core:5.0.1, Home:3.3.0])

Building and flashing

# Build an application
platformio run

# Build filesystem
platformio run --target buildfs --environment d1_mini

# Upload filesystem image
platformio run --target uploadfs --environment d1_mini

# Upload the application binary
platformio run --target upload

# All in one-liner
platformio run  &&  platformio run --target buildfs --environment d1_mini  &&  platformio run --target uploadfs --environment d1_mini  &&  platformio run --target upload

Pinout

• HW pinout defined at: usbmux/app/src/hw_config.h
• Board connector pinout:

Schematics

More random pics

• Completed device:
• UART(Serial) CLI:
• Web server:

BOM

PART NAME	SHOP LINK	DATASHEET	QUANTITY	PRICE [PLN]
ESP8266 WEMOS D1-MINI	AliExpress	ESP8266-D1MINI	1	7.99
TS3USB221 - USB 2.0 Mux	AliExpress	TS3USB221	1	6.00
Relay module	AliExpress	-	1	2.09
CASE type: Z23	Allegro	Z23	1	3.39
Micro USB 2.0 male connector	Allegro	-	1	1.20
Mini USB 2.0 male connector	Allegro	-	1	1.40
Micro USB 2.0 female to DIP Adapter	Allegro	-	1	2.29
Mini USB 2.0 female to DIP Adapter	Allegro	-	1	2.29
				= 26.65

usbmux's Issues

Can't see mux/demux board pin connections.

Say I have a project and was looking how to use that black mux/demux board.
There is a lot of hot glue and I can't see how that black breakout board is connected to your sub board to match pins up.
Do you have any more details on this or the usage of that smaller black board or do you have some pictures with less glue :D?