Unlike Bluetooth that is always on, BLE remains in sleep mode constantly except for when a connection is initiated. BLE’s primary application is short distance transmission of small amounts of data (low bandwidth). What is Bluetooth Low Energy?īluetooth Low Energy, BLE for short, is a power-conserving variant of Bluetooth.

Recommended reading: learn how to use ESP32 Bluetooth Classic with Arduino IDE to exchange data between an ESP32 and an Android smartphone. Introducing Bluetooth Low Energyįor a quick introduction to BLE, you can watch the video below, or you can scroll down for a written explanation. For a simple introduction we’ll create an ESP32 BLE server, and an ESP32 BLE scanner to find that server.

First, we’ll explore what’s BLE and what it can be used for, and then we’ll take a look at some examples with the ESP32 using Arduino IDE. This post is a quick introduction to BLE with the ESP32. The ESP32 comes not only with Wi-Fi but also with Bluetooth and Bluetooth Low Energy (BLE).

Wifi vs bluetooth for video streaming