The HC-06 isa popular Bluetooth 2.0 slave-only serial communication module used with microcontrollers like Arduino to enable wireless data transfer and control from smartphones or computers. It features four main pins (VCC, GND, TXD, RXD) and operates at a default baud rate of 9600 bps.
USB protocol is USB v1.1/2.0.
Bluetooth 2.0+ EDR standard protocol.
The operating current is 40mA.
The operating frequency of this module is 2.4GHz ISM frequency band
The modulation mode is Gauss FSK (Frequency Shift Keying).
Transmit power is less than or equal to 4dBm.
Sensitivity is less than or equal to-84dBm on 0.1% Bit Error Rate.
Its transmission speed is 2.1Mbps maximum or 60 kbps asynchronous, 1Mbps/1Mbps Synchronous.
The safety feature of this module is authentication & encryption.
Bluetooth serial port supported configuration.
Its size is 36.5*16mm.
Its voltage supply is +3.3 VDC 50mA.
The operating temperature ranges from -20 to 55℃.
Module weight is 4 grams.
Its baud rate by default is 9600.
This module is designed with the ROHS process.
It includes an external 8-Mbit flash.
It has an in-built 2.4 GHz antenna, so the user does not require a test antenna.
The Bluetooth module which is designed to facilitate wireless serial communication between any microcontroller & other Bluetooth-enabled devices is known as the HC-06 Bluetooth module. This is a slave Bluetooth device that provides UART serial communication. So, a master is necessary to set up a successful wireless interface. When it is connected to a master Bluetooth device like a smartphone, tablet, or PC then its operation becomes clear to the consumer. The data which is received throughout the serial input is transmitted immediately over the air. Once the Bluetooth module obtains wireless data, then it transmits out above the serial interface in a similar format like it was received.
Serial port wireless communication
AT command control
Auxiliary board included
Voltage regulator on board
LED connection indicator
Internal antenna
Bluetooth V2.0 + EDR support
Re-search button included
Bluetooth connection pins included
Default baud rate: 9600
Input voltage: 3.3 ~ 6 V
Operating voltage: 3.3 V
Coverage: 30ft
Signal coverage: 30ft
Bluetooth version: V2.0 + EDR
Bluetooth version: 2.0 and earlier
Weight: 9 grams
Dimensions: 43x16x7 centimeters
Hardware upgrade: V508
Regulation chip: 150mA and 3.3 V
Foot pins: VCC, GND, TXD, RXD
Pin Configuration
Pin1 (Key): This key pin simply verifies whether the Bluetooth module works in normal mode or AT command mode. When this pin is at a high state then the module works in AT commands mode whereas this pin is at a low state then the module works in normal mode.
Pin2 (Vcc): This pin is used to provide a +5V Positive supply to power the Bluetooth module.
Pin3 (GND): This pin is connected to the ground.
Pin4 (TXD): This pin is used to transmit serial data by module.
Pin5 (RXD): This pin is used to receive serial data by this module.
Pin6 (State): This pin is simply connected to the LED on the Bluetooth board to signify the condition of the module.
How to Use HC-06 Bluetooth Serial Module
Connect the module through the VCC, GND, TXD, and RXD pins.
Power the module within the specified voltage range.
Use AT commands or the re-search button for configuration.
Check the LED for connection status.
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