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HC-05 Bluetooth Transceiver Slave/Master Module

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HC-05 Bluetooth Transceiver Host Slave/Master Module Wireless Serial Arduino Projects Robots, Reprap 3D Printer and CNC.
Weight: 0.004kg

Availability: In stock




What is it

HC-05 Bluetooth module support Master and Slave mode, modify by AT commander

Use the CSR mainstream bluetooth chip, bluetooth V2.0 protocol standards.

Module working voltage 3.3 V.

With LED indicator light, use 150mA and 3.3V regulation chip.

With Configure button, use AT Command Set.

With output PIN: Enable,VCC, GND, TXD, RXD, connection state.

Input power supply 3.6~6V, Prohibit more than 7V.

Working current: matching for 30 mA, matching the communication for 10 mA.

Operating frequency band:2.4GHz unlicensed ISM band.

Default Baud Rate: 9600,8,1,n.

Default Access Code: "1234"

With "Re-search" button(ON/OFF/WAKE foot for it , external MCU input "High level" can control module to re-search)

Interface level 3.3 V, can be connected directly to a variety of single chip microcomputer (51, AVR, PIC, ARM, MSP430, etc.), 5 V microcontroller can also be connected directly, without MAX232 and couldn't through MAX232.

Signal coverage: 10 meter (30 feet). Clearing effective distance of 10 meters, more than 10 meters is possible, but not keep distance connection quality done




How it works

Module connection

Connect to the controller board

  • VCC: connect to positive power supply;
  • GND: connect to negative power supply; ;
  • RXD: connect to TXD;
  • TXD: connect to RXD;
  • EN: connect to IO Port, enable signal input;
  • Size of PCB:37.3mm × 15.5mm × 7mm ;
  • state: connect to LED, output 3.3V when connected;



Module Setting


Development Documents



  • Size of PCB:37.3mm × 15.5mm × 7mm;
  • Module Weight: 3.5g;
  • Connection Port: SIP6-2.54mm;


Shipping List

  • HC-05 Bluetooth Transceiver Board × 1


Shipping Notification

World Wide Shiping

  • DHL: 5 to 9 days
  • EUB: 10 to 30 days


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