Product highlights

 (a lot of finished product is bluetooth transmission mode, theSeries - MD - BC04 - B_DEMOJust in from the bluetooth transmission mode, can toggle button of master-slave mode switch at any time, and there is another address code belowThe ClearClear key).

Product features and characteristics

This product is an embedded bluetooth protocol stackThe RS - 232.The interface of bluetooth adapter.Product main function is to replace the traditional serial cable connection, users don't need to the original line connection scheme to make too many changes, can quickly upgrade the serial cable connection of the original for the wireless bluetooth serial port connection.For those who don't want to have too much attachment of industrial, medical, business and other fields of application, this article provides a simple and quick, safe and reliable wireless solutions.The product inside the bluetooth communication protocol, so there is no need to install driver, other canWindowsUsed in the system, also can be inDOS,LinuxSuch as the graphical operating system in use.When users need to know the bluetooth communication technology professional knowledge, for the user, or a serial port communication, and there is no difference with the traditional serial cable connections, communication application developers need to write a serial port communication code.When using bluetooth2.1The standardCSRBluetooth chip.The enhancedBERError rate performance and automatic frequency hopping technology, which can ensure the safety of efficient communication, and have stronger anti-interference ability, guarantee the stability and reliability of communication.When the user can passThe ATCommand to set the1200 BPSto1382400 BPSTwelve different baud rate (the default value is9600, n, 8, 1), can also set a more personalized bluetooth name for equipment.Low support bluetoothSerial Port Profiles(SPPWith bluetooth function), and notebook computers, desktop computers and handheld bluetooth equipped with bluetooth adapterPDA, bluetoothGPSSuch as bluetoothSPPDevices to connect and communication services.Low transmission power in accordance with bluetoothClass2Standard, built-in Gao Gan degreesPCBPrinting antenna, stable communication distance can reach15M, can be wireless data transmission through walls.lowRS232Serial bluetooth adapter needs to be on the adapterMiniUSBInterface for adapter power supply.

When equipped withThe RESETReset button, can delete saved adapter has paired device information, and a new bluetooth device matching.

The main specification parametersLow standards: bluetoothSIG v2.1 + EDR,When the bluetooth protocol:Bluetooth serial port profile (SPP)Low interfaces:RS232Low communication rate:1200,2400,4800,9600,19200,38400,57600,115200,230400,460800,921600,1382400 BPSLow modulation mode:2.4 G ISM Frequency hopping (direct sequenceFHSS)Low communication distance: open space15M,Class 2 levelLow transmission power: 4 dBmLow sensitivity to accept:- 79 DBMLow working voltage:5 vLow working current/Sleep current:40 mA / 1.6 mA (Typical values)Low temperature environment/Storage temperature:10-50 -c/ - 20-80.cLow size:56.5 mm * 38.5 mm * 14.5 mm

Common problems and solutions:

The problemA:sendThe ATAnd there is no returnOK

1.Did check serial port through

2.Check module is connected with you our equipment baud rate

3.The ATIf the carriage returns

4.Bluetooth is power supply3.3 V

5.TTLWhether the level toRS232Connected to the computer serial port

6.Check the port have the right

Pro, if none of the above several questions, Suggestions, can use mobile search matching, and then send the data

The problemB:Module will be garbled words after electricity

1.Check the serial port ever pick up against or virtual welding

2.Check module is connected with you our equipment baud rate

3.Check the port have the right

The problemC:Computers are unable to connect to bluetooth bluetooth module

1.The bluetooth driver closed the computer, restart

2.Change the adapter

3.In computer

4.Try and phone connection

The problemD:Modules to mobile phone connection

1, Check your phone have a mobile phone software serial port

2, Whether to use mobile phones in bluetooth serial port software to search for matching

3, Change the phone to try