Get Data from UPC scanner connected to BLE or USB?

How would one get the data or listen to the data stream for a UPC scanner that is connected via Bluetooth or USB?



USB can mean a few things. Some USB devices expose a UART device (meaning, it mimics a serial connection). If the UPC scanner exposes a UART over USB, you can use Circuits.UART to interface with the UPC.

For BLE there’s Blue Heron. Blue Heron is quite rough around the edges though, and it may not implement the features you need.

A more specific answer would require some more info, I think. Do you have a specific UPC scanner in mind? And perhaps a manual or datasheet for it?

Here is a good example.