Arduino has bought out second revisions of its Nano 33 BLE and Nano 33 BLE Sense bluetooth-equipped microcontroller boards, keeping the sensor mix, but changing several of the sensor ICs. The nRF52840 ...

Bluetooth® Low Energy (Bluetooth® LE or BLE) is a low-power, short-range wireless communication technology that is ideal for use on the Internet of Things (IoT). BLE is designed for small and distinct ...

This is an example of how to connect an Arduino with a Bluetooth transciever to an Android app. I connected the Arduino board with a temperature sensors. The Android app receives the temperature ...