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Master-slave Wireless Serial Port Transmission Compatible Bluetooth Module HC-05 with Baseplate

10-49 Pieces
50-199 Pieces
200-499 Pieces
>=500 Pieces
2% OFF
Min. Order
10 Pieces
Total Stock
9999 Pieces
Note: Please be cautious and check with your supplier if this product is for virus protection purposes and if the coronavirus (COVID-19) will affect your order.
Company Information

Shenzhen Jiashengtai Electronics Co., Ltd.

CN Manufacturer, Trading Company, Agent, Distributor/Wholesaler
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US$ 20,000+
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Quick Details

Payment Term: Paypal/TT/Western Union/Credit card
Operating Temperature: Standard
Place of Origin: China
Lowest price: Plz contact us
Datasheet: Plz contact us
Model Number: HC-05
Lead time: In stock
Brand Name: Compatible VERSION
Type: Bluetooth Module
Supply Voltage: Common
D/C: Newest
Lead Free Status: Lead free/RoHS
Part number: Bluetooth Module HC-05
Package: 6Pins
Shipping by: DHL\UPS\Fedex\EMS\HK Post
Packaging Detail: The product is packed in electrostatic bags. In stock Bluetooth Module HC-05
Selling Units: Single item
Single package size: 5X2X3 cm
Single gross weight: 0.012 KG
Product Description

Master-slave Wireless Serial Port Transmission Bluetooth Module HC-05 with Baseplate

HC-05 compatible 3

1.1 Common sense (very important):
TXD: sending end, generally expressed as its own sending end. Normal communication must be connected to RXD of another device.
RXD: receiving terminal, generally expressed as its own receiving terminal. Normal communication must be connected to TXD of another device.
In normal communication, TXD is always connected to RXD of the device!
Spontaneous self receiving: RXD is connected to TXD of other devices during normal communication, so if you want to receive the data sent by yourself as the name implies, that is, you want to receive the data sent by yourself, that is, your TXD is directly connected to RXD, which is used to test whether your sending and receiving are normal. It is the fastest and simplest test method. When there is a problem, you should first do this test to determine whether the product is faulty. Also called loop back test.

1.2 Level logic:
TTL level: generally, binary is used for data representation. It is specified that + 5V is equivalent to logic "1" and 0V is equivalent to logic "0". It is called TTL signal system, which is positive logic
RS232 level: adopt - 12V to - 3V, equivalent to logic "0", + 3V to + 12V, equivalent to logic "1", negative logic

1.3 Product characteristics:
1. The core module uses hc-05 from the module, and the outgoing interface includes VCC, GND, TXD, RXD, key pin, Bluetooth connection status outgoing pin (state). The unconnected output is low, and the connected output is high
2. LED indicates Bluetooth connection status, flash indicates no Bluetooth connection, slow flash indicates entering at mode, double flash indicates Bluetooth is connected and the port is opened
3. Anti reverse diode with 3.3V LDO, input voltage of 3.6-6v, current of about 30mA when not paired, about 10mA after pairing, input voltage shall not exceed 7V!
4. The interface level is 3.3V, which can be directly connected to various single-chip computers (51, AVR, PIC, arm, MSP430, etc.), 5V single-chip computers can also be directly connected without MAX232 or MAX232!
5. The effective distance of open space is 10m (Class 2), and it is possible to exceed 10m, but the connection quality of this distance is not guaranteed
6. After pairing, when the full duplex serial port is used, it does not need to know any Bluetooth protocol. It supports 8-bit data bits, 1-bit stop bits, and can set the communication format of parity, which is also the most commonly used communication format, and does not support other formats.
7. You can set parameters and query information in at command mode by pulling up 34 feet.
8. Small size (3.57cm * 1.52cm), factory patch production to ensure patch quality. And a transparent heat shrinkable tube, dust-proof beautiful, and has a certain anti-static ability.
9. Switch to the master or slave mode through at command, and connect to the specified equipment through at command
10. Support standard baud rate from 4800bps to 1382400bps

1.4 Product use:
After pairing, it only needs to be used as a fixed baud rate serial port, so as long as the serial port device in the communication format of "fixed baud rate, 8-bit data bit, no parity" can directly replace the original wired serial port without modifying the program. Such as data acquisition, smart car, serial printer, outdoor dot matrix strip screen control, etc.
Pairing with computer: it is suitable for communication between computer and equipment through Bluetooth serial port, and the use method is the same as serial port
Pairing with mobile phone: it is suitable for communication between mobile phone and device through Bluetooth serial port, and the use method is the same as serial port
Pairing with Bluetooth host: it is suitable for two devices to communicate directly through Bluetooth serial port, such as between single-chip microcomputer and single-chip microcomputer, between wired serial port and single-chip microcomputer, etc. the use method is the same as serial port

Flexible use:
Baud rate conversion, because the receiving end and the sending end can choose their baud rates, when the amount of data is small, they can be used as baud rate conversion equipment.


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Company Information

jiashengtai.JPGShenzhen Jiashengtai Electronic Co., Ltd. is one of the most powerful electronic component distributors and spot suppliers in China. It is a professional IC sales company, which operates brand-name products from all over the world and provides one-stop service. Supply One-stop BOM Service.

Since the establishment of the company, through unremitting innovation and expansion, we already have a large number of stocks and a large customer base. Jiashengtai Electronics takes the interests of customers first, the long-term cooperation as the most important, and the reliable products as the root. Based on honest management, we create a good cooperation atmosphere with our customers.


Our products are mainly used in digital products, communications, power control, automotive electronics, household appliances, electronic instruments and other fields, the company has been creating a diversified development space. Customer trust and support created today's Jiashengtai Electronics Co., Ltd.!

With the continuous maturity and improvement of the electronic market, we have put forward higher standards for ourselves, and seek innovative ways to keep pace with the times. We look forward to working with you to create a better future!


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Different package at optional: 
1. Retailing Package:Anti-static bag
2. Bulking Packing:Plastic Bag Package
3. Retailing Box package







Air Express with fast time:



Slower time:

By EUB,HK post.etc.. 



Buyer Feedback


Q1. What is your terms of packing?

 A: Generally, we pack our goods in neutral white boxes and brown cartons. If you have legally registered patent,

we can pack the goods in your branded boxes after getting your authorization letters.


Q2. What is your terms of payment?

 A: Full payment.


Q3. How about your delivery time?

 A: Generally, goods would be shipped in 3-5 work days after payment received, finally depends on order quantities.


Q4. Do you test all your goods before shipment?

 A: Yes, we have 100% test before shipment.


Q5: How do you make our business long-term and good relationship?

 A:1. We keep good quality and competitive price to ensure our customers benefit ;

A:2. We already have a large number of stocks. Based on honest management create a good and long-term cooperation.


Q5: Do you also provide One-stop BOM Service? 


A:1:  Certainly, we can provide BOM Service with advantage price and high efficiency.


Q6: How to contact us?
A: Send your inquiry details in the below,Click "Send"Now!!!