Take Keedox's 2-in-1 Wireless Bluetooth 4.0 Audio Transmitter and Receiver Adapter, for instance, which you can buy at Amazon for $33.It allows you to take the audio from a non-Bluetooth device ...

Inside this portable player is an Arduino Nano driving a 5 VDC motor with a worm gear box. ... and a Bluetooth audio transmitter. There’s a TTP223 touch module on the lid that allows ...

This little Bluetooth transmitter from Scosche is designed for use on aircraft or anywhere else that has a 3.5mm audio outlet. It does away with the need to use wired headphones and can even ...

The TC418 is a Bluetooth 4.2, dual-transmitter device featuring the low-latency version of Qualcomm’s aptX audio transmission codec. Regular aptX, FastStream, and SBC are also supported (aptX HD ...

Long-range RC transmitter “I started using Bluetooth devices like the HC-05 modules, but I found that these sometimes randomly disconnected. Since then I’ve been using the NRF24L01 modules ...

Bluetooth 4.0's Bluetooth Low Energy (BLE) feature allows the microcontroller to run on power sources as small as a button-cell battery for some applications—and the team has developed a "shield ...