HC-02 6pin Bluetooth Module Compatible with HC-05 / HC- 06


Out of stock

Approx Restocking Date: 25 to 30 Days
SKU: 1150754
  1. Working Frequency: 2.4G
  2. Communication Interface: UA pin 3.3V TTL level
  3. Input Voltage: 3.2 ~ 6V
  4. Operating Voltage: 3.0 ~ 3.6V
  5. Communication Level: 3.3V
  6. Transmitted Power: 6dBm (max)
  7. Reference Distance: 10m
  8. Air Data Rate: 2Mbps


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Brand: Generic
Category: Bluetooth and NRF Modules

HC-02 Bluetooth serial communication module is based on the Bluetooth v2.0 Bluetooth protocol data transmission module, high stability, ultra-low power consumption, industrial-grade Bluetooth data transmission module.

Users do not need to care about complex wireless communication configuration and transmission algorithms. They only need to connect to devices through the TTL serial port. Powered the HC-02 slave module, and can be connected to the mobile phone for data transmission. In addition, it can be used with HC-05 or HC-06 hosts (matching code, default is 1234) to connect, can replace a traditional serial line, save wiring work, use it’s very flexible.

Pinout Diagram:

How to Use the HC-02 Bluetooth module: 

The HC-02 has two operating modes, one is the Data mode in which it can send and receive data from other Bluetooth devices and the other is the AT Command mode where the default device settings can be changed. We can operate the device in either of these two modes by using the key pin as explained in the pin description.

It is very easy to pair the HC-02 module with microcontrollers because it operates using the Serial Port Protocol (SPP). Simply power the module with +5V/+3.3V and connect the Rx pin of the module to the Tx of MCU and Tx pin of module to Rx of MCU as shown in the figure below

During power up the key pin can be grounded to enter into Command mode, if left free it will by default enter into the data mode. As soon as the module is powered you should be able to discover the Bluetooth device as “HC-02” then connect with it using the default password 1234 and start communicating with it.


  1. Support transparent transmitted with iPhone, integrated with the advantage of Bluetooth 4.0 BLE (Support iPhone 4s version above, cannot connect with the phone’s Bluetooth directly, need a BLE Bluetooth serial port assistant)
  2. Compatible with HC-05 and HC-06 Bluetooth serial port module, Bluetooth 2.0 with EDR, 2 MBPS – 3 MBPS modulation
  3. Built-in 2.4 GHz antennas, users need to debug the antenna
  4. Support transparent transmitted with Android smartphone and notebook computer
  5. Support transparent transmitted with desktop computer via HC-06-USB

Package Includes:

1 x HC-02 6pin Bluetooth Module Compatible with HC-05 / HC- 06

SKU: 1150754 Category:


Working Frequency


Communication Interface

UA pin 3.3V TTL level

Input Voltage

3.2 ~ 6V

Operating Voltage

3.0 ~ 3.6V

RSSI Support

 not support

Communication Level


Transmitted Power

6dBm (max)

Reference Distance


Air Data Rate


Antenna Interface

Internal PCB antenna

Communication Current


Receiving Sensitivity

-85dBm @ 2Mbps

Work Humidity

10% ~ 90%

Work Temperature

-25°C ~ 75°C

Storage Temperature

-40°C ~ + 85°C

Shipping Weight 0.005 kg
Shipping Dimensions 6 × 5 × 1 cm
15 Days Warranty

This item is covered with a standard warranty of 15 days from the time of delivery against manufacturing defects only. This warranty is given for the benefit of Robu customers from any kind of manufacturing defects.  Reimbursement or replacement will be done against manufacturing defects.

What voids warranty:

If the product is subject to misuse, tampering, static discharge, accident, water or fire damage, use of chemicals & soldered or altered in any way.

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Country Of Origin: China