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5V Bluetooth Relay Android Mobile Wireless Control for Arduino Light Switch Lock

5V Bluetooth Relay Android Mobile Wireless Control for Arduino Light Switch Lock

  • Model: TB303_5V*1+ TB304*1
  • Shipping Weight: 0.05Kg
  • 10000 Units in Stock

USD $9.99

  • Product Description
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Packing list:
1 pcs DC 5V one channel relay module;
1 pcs  RS232 Bluetooth module(TTL Level) 
Android software via network transmission
one channel relay module:
Note: Do not reverse the power, otherwise it will burn module;
TTL232 interface, which is convenient to achieve UART Bluetooth Module to control relay, you can also use PC(USE USB to TTL) 8051 AVR Arduino MCU to control relay ;
Power indicator: LED lights ;
Output indication: relay output with LED indicators, easy to see working status of the relay ;
Communication protocol: UART protocol communication, baud rate 9600kpbs, 8 data bits, one stop bit, no parity. Each data frame contains eight bytes. Two-way data transmission.
Baud rate 9600kbps, 8 data bits, one stop bit, no parity. Each data frame contains eight bytes..
Simple control command : Send 'A' Relay Open,Send 'a' Relay Close;
Bluetooth module:
Compatible with HC-06 Bluetooth module;slave module;
Plug and Play operation at 9600 baud
Easily integrated into existing (9600 baud) projects without any need to modify code!
Default passcode: 1234
USE USB TO TTL set AT command;when the bluetooth connection has not been established support by pairing the AT command set baud rate, name, password, set the parameters of the power save.
Size : 1.9CM*4.1CM
1 Click to find Bluetooth devices
2 Search for Bluetooth devices 
3 Click mating connector,
4 The first connection requires a password, the default password is: 1234(You can change the password via USB to TTL 232)
5 After a successful connection, the indicator is no longer flashing.
6 Click "Open", the relay opens, click "Close" ,the relay close 
Wiring Diagram: 
Introduction for Shenzhen Canton-electronics Trading Co.,Ltd :
We specialize in RF Wireless Radio Transmitting Units and Receiving Units, the product include transmitters with case, receivers with relay(s), transmittng modules and receiving modules, are widely applied in RC toy, remote sensing, telemetry, fireworks, industrial control, home&garden application.


Normally shipping is by Airmail from China Post Air Mail or Hong Kong Post Air Mail ,15-60 days shipping time based on different country .
Express is available, shipping time is 2-7 days all over the world, and telephone number is needed. Please contact us first for extra payment .
The Best Prices. By working with Canton-electronics Ltd, you can take advantage of the internet business, cut off the wholesalers cost and other costs, and import your products directly from the manufacturer at incredible prices.
Prompt Delivery. Most units are in stock all the time, standard units will be completed within 1-3 days if they are sold out, it is great help for you if your project must be completed before deadline.
Prompt Service. Mails will be replied within 24 hours We work 6 days  a week.
Return Policy
All mails will be replied to within 24 hours except on weekend and holidays.
Every item is manufactured under Strict Quality-Assurance Guidelines. If you are dissatisfied for any reason, please return the product to us, and we'll refund your money(not  including  shipping fees).
Please ensure that return items are not used.
Return items must be Posted within 7 days of receipt.
Please inform us via email before posting your return package.
We accept PayPal only. 
We only ship item to your PayPal verified address. 
Payment must be received within 3 Days from the date of purchase. 
Please leave note in PayPal when making the payment if you have any special request (colors/size).
Import tax : 
 We will dispatch the item as SAMPLE or GIFT,  label the total amount on the custom declare invoice .
 Import duties, taxes and charges are not included in the item price or shipping charges. These charges are the buyer’s responsibility. Please check with your country’s customs office to determine what these additional costs will be prior to buying.


Online Security
All transactions are secured. The website is provided with an SSL encryption system to protect personal and payment data. We do not sell or ship any items ordered through the Site directly to anyone we know to be under the age of 18. We will not collect and personally identifiable information (e.g. name, address, telephone number and e-mail address), also referred to herein as "personal information", about you unless you provide it to us voluntarily.

Items can be returned for a refund or exchange within 60 days of the date of purchase. But the reason for returns caused by yourself (eg, size, color you choose), cannot be accepted. Special circumstances may require partnership with corporate business partners. For more information, please contact our customer service. We shall ship the items via DHL or USPS Once your order is processed you will receive email notification with shipment tracking number. All delivery standards begin when you receive this email. If order is placed after 3:00 PM CST on Friday or on the weekend, the earliest it will ship is Monday.