Hot selling HC-05 Master-Slave Wireless Bluetooth module serial port transparent transmission module

$2.70 - $3.00
Min. Order
1 Piece
Company Information

Shenzhen Ruiqi Electronic Co.,ltd

CN Manufacturer, Trading Company, Distributor/Wholesaler
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US$ 90,000+
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Quick Details

Payment Terms: T/T,Western Union,MoneyGram,Paypal
Supply Ability: 10000 Piece/Pieces per Week
Lead time: 0-3 Days
Brand Name: China
Payment: Paypal\TT\Western Union\Trade Assurance
Type: Bluetooth module
Place of Origin: Guangdong China
Quality: 100% new
D/C: 2019+
Package: Model
Shipping by: DHL\UPS\Fedex\EMS\TNT\Aramex
Model Number: HC-05 Bluetooth module
Best price: please contact us
Packaging Detail: antistatic bag
Product Description

Hot selling HC-05 Master-Slave Bluetooth module serial port transparent transmission module hc05

1. It is HC-05.
2. Use the CSR mainstream bluetooth chip, bluetooth V2.0 protocol standards.      
3. Module working voltage 3.3 V.       
4. Potter default rate of 9600, the user can be set up.       
5. The core module size : 28 mm x 15 mm x 2.35 mm.       
6. Working current: matching for 30 MA, matching the communication for 8 MA.      
7. Dormancy current: no dormancy.       
8. Used for GPS navigation system, water and electricity gas meter reading system.       
9. With computer and bluetooth bluetooth adapter, PDA, seamless connection equipment

  • Commercial Series: Bluetooth module board Series
  • With LED indicator light, use 150mA and 3.3V regulation chip.
  • With VCC.GND.TXD.RXD foot for the Bluetooth
  • With "Re-seach" button(ON/OFF/WAKE foot for it , external MCU outinput "High level" can control module to re-seach)
  • Compatible with bluetooth master module".slave module"or master-slave(whole) module.
  • Input voltage: 3.3~6V
  • Size: 1.55cm*3.98cm



input power supply 3.3~6V, Prohibit more than 7V
No "Automatically prevent power supply peversing func", so please correctly connect power supply       
We advise to install "Bluetooth master module"       
The "State" is output foot for LED status, when bluetooth "Unconnected", output "Pulse" ; when bluetooth "connected", output "High level", we can determine the states from "MCU"       
If only the board , No any "Bluetooth Function "

1. The core module uses the HC-05 slave module. The lead-out interface includes VCC, GND, TXD, RXD, KEY pin, Bluetooth connection status pin (STATE), unconnected output is low, and the output is high after connection.

2, led indicates the Bluetooth connection status, flashing indicates no Bluetooth connection, slow flashing means entering the AT mode, double flashing indicates that the Bluetooth is connected and the port is opened

3, the bottom plate is set with anti-reverse diode, with 3.3V LDO, the input voltage is 3.6~6V, the current is about 30mA when not paired, about 10mA after pairing, the input voltage is prohibited to exceed 7V!

4, the interface level 3.3V, can be directly connected to a variety of single-chip (51, AVR, PIC, ARM, MSP430, etc.), 5V microcontroller can also be directly connected, without MAX232 can not go through MAX232!

5, the effective distance of the open space is 10 meters (power level is CLASS 2), more than 10 meters is also possible, but the connection quality of this distance is not guaranteed.

6. After pairing, when using the full-duplex serial port, there is no need to know any Bluetooth protocol, support 8-bit data bit, 1-bit stop bit, and parity setting communication format. This is also the most commonly used communication format, and does not support other formats.

7, can be pulled into the AT command mode by setting the 34 feet to set parameters and query information

8, small size (3.57cm * 1.52cm), factory patch production, to ensure the quality of the patch. And set of transparent heat-shrinkable tube, dustproof and beautiful, and has a certain anti-static ability.

9, can be switched to the host or slave mode by AT command, can be connected to the specified device through the AT command

10, support the standard baud rate from 4800bps to 1382400bps


HC-05 board.jpgHC-05 board2.jpgHC-05 board3.jpg




Company Information

Shenzhen Ruiqi Electronics Co., Ltd. is electronic components supplier. 

We specialized in Integrated Circuit,Development boards, WIFI modules, Bluetooth modules, power modules, sensor modules, GPS GPRS GSM modules, camera module,etc.

We accept Bom list order,provide best quality and reasonable prices,"Quality and serivce is our mission"



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Contact information

 Contact Person: Justin CAI

 Company Address: NO. B2713,Oriental times square,Huaqiang notrh Road ,Futian District, Shenzhen, Guandong,China.