Unable to get it working with Feather M0 Express (SAMD21) despite demo by Adafruit about arduino

[sayanee]

@armsp What is your vendorID and productID using lsusb command on Ubuntu when you connect the board to your laptop?

The RGB demo calls serial.js which has a specified list of vendorID and productID and your board must match, else it will say No compatible devices found.

Just a hunch on why it is probably not working 😅

[armsp]

It worked !! You are a rockstar @sayanee

[reillyeon]

@sandeepmistry for the SAMD support. I am not familiar with these boards.

This library uses the Arduino USB stack, not TinyUSB. Adafruit's video links to this example code for using WebUSB with TinyUSB.

[armsp]

@sandeepmistry any hint on this?
So far I have tried -

1. Adding the udev rule as mentioned here in a file 50-adafruit_m0_express.rules -
   SUBSYSTEM=="usb", ATTR{idVendor}=="2341", MODE="0664", GROUP="plugdev"
2. Added my user to plugdev
3. Started Chrome with --disable-webusb-security

Still then my browser doesn't recognize my Feather M0 Express. Even the Adafruit's own examples pointed by @reillyeon don't work. All I see is this -

[armsp]

My vendorId is 0x239A and productId is 0x801B. Does serial.js check for both productId and vendorId cause the vendorId matches with the last two values - Adafruit ItsyBitsy 32u4 - but the productId doesn't match with anything.