HC-05 Bluetooth Module

HC-05 Bluetooth Module – Wireless Serial Communication Module

The HC-05 Bluetooth Module is a compact and reliable wireless communication module designed to add Bluetooth connectivity to Arduino, microcontrollers, robotics projects, and IoT applications. It uses Bluetooth 2.0 + EDR technology and supports Serial Port Profile (SPP), enabling seamless wireless serial communication between microcontrollers, smartphones, tablets, and PCs. The module can operate in both Master and Slave modes, making it suitable for a wide range of wireless control and data transfer applications.

Key Features

• Bluetooth 2.0 + EDR technology
• Supports Serial Port Profile (SPP)
• Configurable as Master or Slave device
• Wireless serial communication via UART interface
• Default baud rate: 9600 bps
• Operating voltage: 3.6V – 6V DC
• Communication range up to 10 meters
• Built-in antenna for stable wireless connectivity
• AT Command support for easy configuration
• Compatible with Arduino, Raspberry Pi, AVR, PIC, STM32, and other microcontrollers

Technical Specifications

• Bluetooth Version: Bluetooth V2.0 + EDR
• Frequency Band: 2.4 GHz ISM
• Communication Protocol: UART (TX/RX)
• Range: Up to 10 meters (open space)
• Operating Current: ~30–40mA
• Logic Level: 3.3V
• Default Pairing PIN: 1234 or 0000
• Data Mode Baud Rate: 9600 bps
• AT Command Mode Baud Rate: 38400 bps

Applications

• Bluetooth-controlled robots and cars
• Home automation systems
• Wireless sensor monitoring
• Arduino and Raspberry Pi projects
• Smart device communication
• Remote control systems
• IoT and embedded projects
• Wireless data logging and transfer

Package Includes

• 1 × HC-05 Bluetooth Module

Make your electronics projects wireless with the HC-05 Bluetooth Module – the perfect solution for Bluetooth-enabled Arduino, robotics, and IoT applications.