#bluetooth
5 open-source ESP32 project guides tagged #bluetooth: build steps, hardware and firmware.

ESP32 Wi-Fi and Bluetooth Module: What It Is and How to Start
Plain-English guide to the ESP32 Wi-Fi and Bluetooth module: chips vs modules, how both radios share one antenna, how to get started and pitfalls to avoid.

ESP32 Specs: Complete Reference Guide for Makers
ESP32 specs reference: 240 MHz CPU, 600 DMIPS, 12-bit ADC, Wi-Fi, BLE 4.2–6.x support tables, external flash notes, gotchas, and safe usage tips.

ESP32 Bluetooth Example: BLE Scanner Step-by-Step
Run your first ESP32 Bluetooth example in Arduino IDE. Covers BLE scanner code, BluetoothSerial, RSSI, common mistakes, and what Bluetooth modes the ESP32 supports.

Nuki Hub: Turn an ESP32 into a Smart Lock Bridge
Flash Nuki Hub to an ESP32 to bridge any Nuki Smart Lock or Opener to Home Assistant, ioBroker, FHEM and more over local MQTT.

ESP32 Web Radio & Bluetooth Speaker with MP3 Decoder
Build an ESP32 internet radio and Bluetooth speaker that decodes MP3 and AAC streams over Wi-Fi and outputs audio via I2S codec or built-in DAC.