Hi Bhavin,
Integrating a bluetooth barcode scanner to your UI5 app is very simple. Just pair it to your bluetooth enabled device, focus on the field you want the reader to output it's read data into and use the bt scanner.
The BT scanner is treated as an "external keyboard" by the mobile device. So after it reads the barcode it will just "type" it into the currently focused field. The bt device will also usually include a carriage return when it sends the data to your UI5 application.
Regards,
Alex