WebUSB Serial is not working in nRF52840

[milador]

Operating System

Windows 10

IDE version

1.8.19

Board

Feather nRF52840 Sense

BSP version

1.3.0

Sketch

Examples/Adafruit_TinyUSB_Arduino/WebUSB/webusb-serial

What happened ?

Doesn't connect to Feather Board and returns NetworkError: Unable to claim interface.

Tested in Chrome version 100

How to reproduce ?

1. Go to File -> Examples -> Adafruit_TinyUSB_Arduino -> WebUSB -> webusb-serial
2. Compile and upload webusb-serial.ino to Feather nRF52840 Sense
3. Open https://adafruit.github.io/Adafruit_TinyUSB_Arduino/examples/webusb-serial/index.html in Chrome
4. Click on Connect

Debug Log

No response

Screenshots

No response

[hathach]

• Have you tried to enable the webusb feature in chrome. I don’t remember the exact term, it is probably called experimental web feature or something.
• Also the example did wait until the serial is opened, make sure you open the Serial monitor as well

https://github.com/adafruit/Adafruit_TinyUSB_Arduino/blob/9527382b498cd1264d9132f9e7855434c869f557/examples/WebUSB/webusb_serial/webusb_serial.ino#L57

[milador]

@hathach It was a chrome issue as it's working now. It works using Microsoft Edge as well.

[hathach]

Glad you got it working