HC-06 Vs. HC-05 Bluetooth Module: What Is The Difference Between ...

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My Profile Order Status & History RFQ History My Favorite Address Management Sign InOrSign UpHome /Components /HC-06 vs. HC-05 Bluetooth Module: What is the difference between HC-06 and HC-05? /HC-06 vs. HC-05 Bluetooth Module: What is the difference between HC-06 and HC-05?

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Published: 24 November 2021 | Last Updated: 24 November 2021

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HC06B0500000G

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Hc-05 is a Bluetooth serial port module with master-slave integration. The master-slave can be switched with rich and complete instructions. Hc-06 is a Bluetooth serial port module with master-slave integration. The master-slave can be switched by command, and the command is less than the-05, so it is easy to use. This article is going to explain the difference between the HC-06 and HC-05 Bluetooth modules.

Arduino Bluetooth AT commands HC 05 HC 06

Catalog

• Overview of HC-06
• Overview of HC-05
• HC-06 vs. HC-05: Specifications
• HC-06 vs. HC-05: Pinout& Entering AT Mode
• HC-06 vs. HC-05: Breakout Board Connections
• HC-06 vs. HC-05: Applications
• HC-06 vs. HC-05: Differences Summary

Overview of HC-06

The HC-06 Bluetooth module is intended for use with two microcontrollers or systems to establish short-range wireless data communication. Its operation becomes transparent to the user after it is associated with a master Bluetooth device, such as a PC or smartphone. All data received through the serial input is sent over the air right away.

HC-06

Overview of HC-05

The HC-05 is a Bluetooth Serial Port Protocol module, which means it communicates with the Arduino using serial communication. This module features a BC417 Single-Chip Bluetooth IC that supports both the UART and USB interfaces and is compliant with the Bluetooth v2.0 standard.

HC-05

HC-06 vs. HC-05: Specifications

HC-05	HC-06
Low operating voltage: 4V to 6V (Typically +5V)	Input voltage: 3.3~6V (Typically +5V)
Frequency: 2.45 GHz	Built-in antenna
Range: <100m	Operating Current: 30mA
Follows IEEE 802.15.1 standardized protocol	Uses Frequency-Hopping Spread Spectrum (FHSS)
Supported baud rates are 9600,19200,38400,57600,115200,230400 and 460800.	Works with Serial communication (USART) and TTL compatible
Can operate in Master, Slave, or Master/Slave mode	2.4GHz ISM band frequency
Default baud rate: 9600

HC-06 vs. HC-05: Pinout& Entering AT Mode

HC-06 and HC-05 Pin and Entering AT Mode

PINS:	The pins found on the breakout board are,
KEY:	This pin has to be pulled high to enter AT mode.
VCC:	The indicated range is 3.6 to 6 volt. To be on the safer side, you should connect it to 3.3 Volt.
GND:	Ground.
RXD:	Serial input pin.
TXD Serial output pin.
STATE:	May or may not be connected to any pin. Supposedly outputs the Bluetooth connection status. This pin will not be needed.

For HC-05:

Connect the Rx pin of the Bluetooth module to the Tx pin of the USB to TTL converter, and the Tx pin of the Bluetooth module to the Rx pin of the converter for the HC-05. Connect their ground as well, but leave the Vcc disconnected for now. You'll need to short the key pin with the Vcc first. On a breadboard, or in any other way, connect key pin and Vcc, Connect the Vcc of the bt module to the Vcc of the USB to the TTL converter after all other pins are connected. The led on the module will now blink at a 2-second interval.

That means it has entered the AT mode. If the led blinks faster then AT mode was not entered. Disconnect Vcc. check your circuit, and try again. If it does not work then there's a chance that your KEY pin of the module is not really soldered to the KEY of the main chip, i.e. the 34th pin, You can check that with the help of a multimeter.

For HC-06:

Simply connect the module's Rx to the USB-TTL converter's Tx and the module's Tx. Ground and Vcc should be connected. The module is in AT mode. Didn't see that one coming, right? :P Turns out the HC-06 module is permanently configured to be a slave and it is always in AT mode when not paired to any other device. As a result, unlike the HC-05, there is no confirmation led blinking to indicate that it is in AT mode, To change the default settings, simply turn on the module and provide the AT commands.

HC-06 vs. HC-05: Breakout Board Connections

The push-button switch is used to bring the EGBT-045MS / HC-05 in to AT mode by connecting VCC (3.3v) to pin 34. There are two AT modes , which I call "small mode" and "full mode." When you push the button switch for a few seconds, the modules go into the tiny model, which means that not all commands operate. When the switch is closed, the modules enter full AT mode, which allows them to respond to all AT commands . When the switch is released, pin 34 is set to LOW.

Because most HC-06 modules lack a button switch (the space is empty), raising pin 34 HIGH on the HC-06 has no effect .

HC-06 vs. HC-05: Applications

The Bluetooth module is used for wireless communication between two microcontrollers.

It is used in Home Automation systems

HC-06 vs. HC-05: Differences Summary

Hc-05 is a Bluetooth serial port module with master-slave integration. The master-slave can be switched with rich and complete instructions.

Hc-06 is a Bluetooth serial port module with master-slave integration. The master-slave can be switched by command, and the command is less than the-05, so it is easy to use.

HC-05	HC-06
HC-05 module can either be a master or slave	HC-06 module can only be a slave
It has a push button	It does not have a push button
HC-05 has five header pins	HC-06 has only four header pins

Share this postFrequently Asked Questions

How many pins HC-05 Bluetooth modules can remain unconnected?

The HC-05 Bluetooth Module has 6 pins commonly used.

What is the range of HC-05 Bluetooth module?

It uses the 2.45GHz frequency band. The transfer rate of the data can vary up to 1Mbps and is in the range of 10 meters. The HC-05 module can be operated within 4-6V of power supply.

What is the meaning of HC-05?

HC-05 Bluetooth Module is an easy-to-use Bluetooth SPP (Serial Port Protocol) module, designed for a transparent wireless serial connection setup. Its communication is via serial communication which makes an easy way to interface with the controller or PC.

Is HC-05 a ble?

The HC-05 is a class 2 Bluetooth module designed for transparent wireless serial communication. It is pre-configured as a slave Bluetooth device.RELATED POSTS

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