Bluetooth Module HC-05

Introduction

• It is used for many applications like wireless headset, game controllers, wireless mouse, wireless keyboard and many more consumer applications.
• It has range up to <100m which depends upon transmitter and receiver, atmosphere, geographic & urban conditions.
• It is IEEE 802.15.1 standardized protocol, through which one can build wireless Personal Area Network (PAN). It uses frequency-hopping spread spectrum (FHSS) radio technology to send data over air.
• It uses serial communication to communicate with devices. It communicates with microcontroller using serial port (USART).

HC-05 Bluetooth Module

• HC-05 is a Bluetooth module which is designed for wireless comunication. This module can be used in a master or slave configuration.

Specification od Bluetooth module HC-05

• Voltage: 3.6 V-6 V connected to the VCC pin
• Communication leads are working with voltage 3.3 V (tolerate 5 V)
• Current consumption: approx. 50 mA
• Class 2 – maximum transmitter power + 4 dBm
• Range: up to 10 m
• The password for pairing: 1234
• Standard: Bluetooth 2.0 + EDR
• The SPP profile with possibility to configure via AT commands
• Communication: UART (RX, TX)
• Small dimensions: 39 x 16 mm