HC-05 BLUETOOTH MODULE

The HC-05 Bluetooth Module is a popular wireless communication module that enables devices to communicate over Bluetooth. It supports both master and slave modes, making it suitable for a wide range of applications like wireless data transfer, remote control systems, and Bluetooth-based IoT projects.

Key Features of HC-05 Bluetooth Module:

• • Bluetooth Version: Bluetooth v2.0+EDR (Enhanced Data Rate)
  • Master and Slave Modes: Can be configured as either master or slave for flexible communication.
  • Operating Range: Up to 10 meters (line-of-sight)
  • Low Power Consumption: Operates on 3.3V with minimal power requirements.
  • UART Interface: Communicates with devices using UART (9600 bps by default).
  • Built-in LED Indicators: Indicates power and connection status.

Technical Specifications of HC-05 Bluetooth Module:

• • Bluetooth Protocol: Bluetooth v2.0 + EDR
  • Operating Voltage: 3.3V (can tolerate 5V on RX/TX pins via level shifter)
  • Communication Interface: UART
  • Default Baud Rate: 9600 bps
  • Signal Range: Up to 10 meters
  • Power Consumption: 8mA in communication mode, 1mA in idle mode
  • Dimensions: 37mm x 15mm x 2.5mm

Schematic Diagram, Connection, Wiring, and Pinout of HC-05 Bluetooth Module:

• Schematic Diagram: The HC-05 module connects to a microcontroller via the UART pins (TX, RX). Power is supplied through the VCC and GND pins.
• Connection:
  • VCC: Connect to a 3.3V or 5V power source.
  • GND: Connect to the ground.
  • TXD: Connect to the RX pin of the microcontroller.
  • RXD: Connect to the TX pin of the microcontroller (use a level shifter if operating at 5V).
  • EN/Key: Used for entering command mode (high to enter AT command mode).
• Pinout:
  • Pin 1: Key/Enable pin for AT command mode
  • Pin 2: VCC (Power input)
  • Pin 3: GND (Ground)
  • Pin 4: TXD (Transmit data)
  • Pin 5: RXD (Receive data)

Applications of HC-05 Bluetooth Module:

• • Wireless Communication: Ideal for serial data transfer between devices.
  • Home Automation: Used in Bluetooth-enabled home automation systems.
  • IoT Projects: Commonly employed in IoT for remote monitoring and control.
  • Robotics: Enables wireless control of robots.
  • Wireless Sensors: Used for Bluetooth-based sensor data collection.

Equivalent Models of HC-05 Bluetooth Module:

• • HC-06: Similar module but operates only in slave mode.
  • HM-10: A BLE (Bluetooth Low Energy) alternative for energy-efficient applications.

DataSheet:

• • Download Datasheet

Keywords for HC-05 Bluetooth Module:

• • HC-05 Bluetooth
  • Wireless Communication Module
  • Bluetooth v2.0 Module
  • Serial Communication
  • Bluetooth Master/Slave

Package Includes:

• • 1 x HC-05 Bluetooth Module