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LED controlling using Bluetooth module (HC-05) with NODEMCU esp8266

HC 06 Bluetooth module pinout, features & datasheet

Bluetooth module interfacing with pic microcontrollers

Effective Use Of a Bluetooth Module

Bluetooth Module (Device) | Hobbyist.co.nz

Bluetooth module connection, How to make Bluetooth audio amplifier

How To Connect Bluetooth Module With Arduino Kit - YouTube