HC-05 Bluetooth Module is one of the most popular bluetooth module used in embedded projects. It can be easily interfaced with Arduino Board, Raspberry Pi, Microcontrollers through serial UART interface. This is a Class 2 Bluetooth Module which can be configured in Master or Slave Mode.

Specifications

• Frequency : 2.4GHz ISM Band
• Bluetooth Protocol : Bluetooth Specification v2.0 + EDR
• Emission Power : ≤4dBm, Class 2
• Modulation : GFSK (Gaussian Frequency Shift Keying)
• Operating Voltage : 3.3V
• Input Power Supply : 3.6V ~ 6V
• Security : Authentication & Encryption
• Working Temperature : -20°C ~ +75°C
• Dimensions : 35.7mm x 15.2mm x 5.6mm

Features

• 3.3V TTL Compatible
• Wide Input Voltage Range : 3.3V ~ 6V
• Supported Baud Rates : 9600, 19200, 38400, 57600, 115200, 230400, 460800
• Auto Connect to Last Device on power as default
• Supports Master and Slave Modes
• On-board Research Button

Default Settings

• Baud Rate : 9600
• Data Bits : 8
• No Parity