HC-06 Bluetooth Module – KSH 500 at HIMASTORES Mombasa – best electronics in Kenya
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HC-06 Bluetooth Module

SKU: HMJ128 Category: Modules
KSH 500.00
In Stock

Product Description

HC-06 Bluetooth Serial Transceiver Module

Wireless Serial Communication Module for Arduino and MCU Projects

The HC06 is a Bluetooth 2.0+EDR serial transceiver module designed for simple wireless serial communication [citation:2][citation:11]. It allows Arduino and other microcontrollers to communicate wirelessly with Bluetoothenabled devices like smartphones and PCs [citation:4][citation:7].

Slave Mode Only - Connects to master devices, ideal for remote control and data reception
Simple Serial Interface - Transparent UART communication with default 9600 baud rate
Supply voltage: 3.3V to 6V (3.3V logic levels) [citation:7][citation:8]
Use a voltage divider (1kΩ/2kΩ) on RX pin for 5V Arduino connections [citation:4][citation:7]
Default PIN: 1234; device name: HC-06 [citation:6][citation:9]

Technical Specifications

ParameterValue
Bluetooth Version2.0+EDR [citation:2][citation:5]
Frequency Band2.4GHz ISM [citation:2][citation:11]
Default Baud Rate9600 [citation:6][citation:7]
Supply Voltage3.3V to 6V [citation:7][citation:8]
Operating Current8mA to 50mA [citation:1][citation:11]
Communication RangeUp to 10 meters [citation:9][citation:12]
Operating ModeSlave only [citation:7][citation:12]

= Key Features =

Simple AT Command Configuration - Change name, PIN, or baud rate via serial terminal [citation:1][citation:4]

Low Power Consumption - 8mA when connected, ideal for battery projects [citation:1]

Compact Size 27mm x 13mm footprint for spaceconstrained designs [citation:8][citation:11]

Onboard Antenna Builtin 2.4GHz antenna, no external antenna needed [citation:8][citation:11]

Default 9600 Baud - Works out of the box with Arduino SoftwareSerial [citation:7][citation:9]

= Applications =

  1. Wireless remote control for Arduino robots and cars
  2. Smartphone-controlled lighting and appliances
  3. Wireless sensor data transmission
  4. Bluetooth-based data logging
  5. IoT and home automation projects
  6. Wireless debugging and serial monitoring
Easy to Use Slaveonly design simplifies pairing and setup
Wide Compatibility - Works with Arduino, ESP8266, STM32, and Raspberry Pi

√ Default 9600 baud rate for plugandplay use

√ Includes LED status indicator (blinking unpaired, solid connected) [citation:4]

√ Works with popular Bluetooth Terminal apps on Android and iOS

Connection Guide

To Arduino (SoftwareSerial on pins 2 & 3) [citation:4][citation:7]:

  • VCC: 5V (or 3.3V if available)
  • GND: GND
  • TXD: Arduino pin 2 (SoftwareSerial RX)
  • RXD: Arduino pin 3 (SoftwareSerial TX) via voltage divider
Use 1kΩ and 2kΩ resistors for 5V to 3.3V level shifting on RX pin [citation:4][citation:7]
Use SoftwareSerial library to avoid conflict with hardware serial (pins 0 & 1)
Do not connect RXD directly to 5V Arduino pin - use voltage divider
Module is slaveonly cannot initiate connections to other devices

AT Commands

CommandResponseEffect
ATOKTest communication [citation:4][citation:7]
AT+VERSIONOKlinvorV1.8Get firmware version [citation:1][citation:4]
AT+NAMEOKsetnameChange module name [citation:1][citation:4]
AT+PINOKsetPINSet pairing PIN [citation:1][citation:4]
AT+BAUDxOKChange baud rate (x=1-9) [citation:4][citation:7]

Baud rate codes: 11200, 22400, 34800, 49600(default), 519200, 638400, 757600, 8115200 [citation:4][citation:7]

Send AT commands without line endings; commands must be sent within 1 second [citation:1][citation:4]
The module is always in AT mode when not paired [citation:7]
Commands are not echoed - only response is shown [citation:1]
Baud change takes effect after module reboot [citation:6]

Troubleshooting

No AT response:

  • Set Serial Monitor to 9600 baud and No line ending [citation:4]
  • Ensure module is not paired to any device
  • Check power supply and wiring

No pairing:

  • Search for "HC-06" in Bluetooth settings
  • Use PIN 1234 (default) [citation:6][citation:9]

LED not blinking:

  • Check 3.3V-6V power supply
  • Verify ground connection
  • Module may be damaged