Newer ESP32 chips which support BT (for example, ESP32-S3), only support Low Energy (BLE) mode. The Arduino ESP32-BT-exp program is designed to use the Bluedroid C API.

The BLE code is now part of the ESP32 Arduino core, making it automatically available to any Arduino ESP32 project without the need for manual import. For more information, see ESP32 Arduino BLE ...

This study experimentally examined the energy usage of the ESP32 and Arduino Nano microcontroller boards in active and deep sleep (power-down) modes. Both boards were powered by a continuous 5 V ...

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When it’s powered on, the Nordic nRF initializes, reads the current temperature from an attached I2C thermometer, and then sends out a Bluetooth Low Energy (BLE) advertising packet containing ...