E-ub5 Bluetooth | Usb Dongle Driver

Getting your E-UB5 Bluetooth 5.1 USB Dongle up and running is usually a quick process, but driver issues can sometimes pop up. Whether you're upgrading an old laptop or adding wireless capability to a desktop, here is how to handle the drivers and setup for this specific adapter. Quick Setup Guide

Then reboot.

Linux and macOS Driver Support for E-UB5

On Linux (Ubuntu, Debian, Raspberry Pi OS):

CSR-based E-UB5 works out-of-box with btusb kernel module.
Realtek RTL8761B requires firmware: sudo apt install firmware-realtek (Debian non-free repo).
Check with lsusb – look for 0a12:0001 (CSR) or 0bda:8771 (Realtek).

2. Bluetooth RF & Physical Features

Class Support: Bluetooth Class 1 – Range up to 100 meters (open air) vs standard Class 2 (10m).
Radio Power: Configurable TX power (Low, Medium, High) to balance battery vs range.
Frequency: Adaptive Frequency Hopping (AFH) to avoid interference with Wi-Fi (2.4 GHz).
Antenna: Support for external antenna connector (if hardware present).

RSSI signal strength meter (dBm).
Eddystone / iBeacon parsing.

Bluetooth Version: 5.0
Frequency Range: 2.4 GHz
Data Transfer Rate: Up to 3 Mbps
Range: Up to 100 meters (330 feet)
Operating Systems: Windows, macOS, Linux