HC-05 Bluetooth Module

Description

OVERVIEW

• The HC-05 module is an easy to use low power device that is compatible with most microcontrollers out there.
• It fits perfectly into a breadboard making prototyping easier.
• It operates in the 2.4Ghz radio frequency range and is a fully qualified Bluetooth V2.0+EDR (Enhanced Data Rate) with 3Mbps Modulation.
• Also present is the CMOS technology with Adaptive Frequency hopping features.

Software Specifications

• Default Baud rate: 38400, 
• Data bits:8
•  Stop bit:1
• Parity: No
•  Supported baud rate: 9600,19200,38400,57600,115200,230400,460800.
• Status instruction port PIO1: low-disconnected, high-connected;
• PIO10 and PIO11 can be connected to red and blue led separately. When master and slave are paired, red and blue led blinks 1time/2s in interval, while disconnected only blue led blinks 2 times/s.
• Auto-connects to the last device on power as default.
•  Permit pairing device to connect as default.
• Auto-pairing PINCODE:”0000” as default
• Auto-reconnect in 30 min when disconnected as a result of module going beyond the range of connection.

Hardware specifications

• Low Power 1.8V Operation ,1.8 to 3.6V I/O
• PIO control
• UART interface with programmable baud rate
• Integrated antenna: present
• With edge connector
• Sensitivity: Typically around -80dBm
• RF transmit power: +4dBm