Bluetooth Module HC-05 For Arduino

The HC-05 Bluetooth Module is a powerful and easy-to-use wireless serial communication device designed for Arduino, ESP32, Raspberry Pi, and other microcontrollers. It supports Bluetooth 2.0 SPP (Serial Port Protocol), allowing devices to communicate wirelessly over short distances.

The HC-05 can operate as both master and slave, making it versatile for building wireless control systems like robot cars, wireless data loggers, smart home automation, and more.

It features onboard 3.3V regulator, easy AT command mode, and UART interface, allowing plug-and-play functionality for hobbyists and professionals alike.

🔧 Features:

• Bluetooth version: 2.0+EDR (Class 2)

• Range: ~10 meters (open area)

• Voltage: 3.3V logic (input 3.6V–6V)

• Default baud rate: 9600 bps

• Operating mode: Master/Slave

• Interface: UART (TX, RX, GND, VCC, KEY)

• Compatible with Arduino, ESP32, STM32, Raspberry Pi

🎯 Applications:

• Wireless Arduino communication

• Bluetooth robot car control

• IoT and home automation projects

• Wireless data transfer

• DIY embedded and automation systems

• Serial Bluetooth interface for sensors or displays