In this tutorial, we will learn how to use Bluetooth Low Energy (BLE) on the ESP32 microcontroller using the Arduino IDE. We will establish communication between the ESP32 as a BLE server and an Android BLE application, enabling the transmission and reception of data between the two devices. First, we will configure ESP32 in both … Read more
In this tutorial, we will learn how to set up ESP32 as a BLE server and use the GATT service to send battery levels to the Android app. For demonstration, we will use the GATT service to send battery percentage levels to our android smartphone from ESP32. The ESP32 board will therefore act as a … Read more
In this tutorial, we will learn how to send sensor readings to an Android phone using Arduino nRF24L01+ module, and BLE. The transfer of data will be through Bluetooth Low Energy (BLE). We will use DHT22 sensor to access current temperature readings and send them to our android phone using nRF24L01+ RF module that we … Read more
In this tutorial, we will learn how to perform BLE server client communication between two ESP32 boards using Bluetooth Low Energy. In other words, we will learn to exchange data between two ESP32 boards over BLE. The communication between server and client will be through BLE where one ESP32 board acts as a BLE server … Read more