03da:0002 — HD44780 LCD interface

This is the USB identifier for a HD44780 LCD interface manufactured by Bernd Walter Computer Technology. The vendor ID 03da is registered to Bernd Walter Computer Technology with the USB Implementers Forum, and 0002 is the product ID that Bernd Walter Computer Technology assigned to this particular model. When you run lsusb on Linux, this device appears as 03da:0002 Bernd Walter Computer Technology HD44780 LCD interface.

Linux

$ lsusb
Bus 001 Device 004: ID 03da:0002 Bernd Walter Computer Technology HD44780 LCD interface

You can filter directly with lsusb -d 03da:0002, or get the full descriptor dump with lsusb -v -d 03da:0002. Kernel messages from dmesg show the same pair as idVendor=03da, idProduct=0002.

Windows

In Device Manager, open the device, go to Details → Hardware Ids. This device reports:

USB\VID_03DA&PID_0002
USB\VID_03DA&PID_0002&REV_0100

From PowerShell: Get-PnpDevice | Where-Object InstanceId -match "VID_03DA&PID_0002"

macOS

$ system_profiler SPUSBDataType
    HD44780 LCD interface:
      Product ID: 0x0002
      Vendor ID: 0x03da  (Bernd Walter Computer Technology)

Having driver issues with this device? Most USB devices are handled by a generic class driver; if yours shows up as an unknown device, confirm the ID above first, then check the manufacturer's downloads page.

The exact lines this page is generated from, in the upstream source file:

03da  Bernd Walter Computer Technology
	0002  HD44780 LCD interface

See all 1 devices from Bernd Walter Computer Technology →