Tunnel - Reading of analog and digital inputs and switching of relays from an Android app via Bluetooth and GPRS/3G - Webdyn
Amazon.com: Kinivo USB Bluetooth Adapter for PC BTD400 (Bluetooth 4.0 Dongle Receiver, Low Energy) - Compatible with Windows 11/10/8.1/8/7, Raspberry Pi, Linux, MacOS, Laptop & Headphones : Electronics
Tunnel - Access to the reading RS232 port of a vending machine via 3G and Bluetooth Low Energy (BLE) - Webdyn
Bluetooth | Android Open Source Project
Embedded Works - Zoom 4615-00-00C 4G/LTE Cat 1 Cased USB Modem | SMA with Antennas
CelerSMS: AT Emulator
37 Bluetooth Dongle Images, Stock Photos & Vectors | Shutterstock