JY-MCU Arduino Bluetooth Wireless Serial Port Module

JY-MCU Arduino Bluetooth Wireless Serial Port Module

VCC 3.6V - 6V


 * To initlalize the BT module, send it the following AT commands: AT+PIN1234  AT+NAMEdongle  AT+BAUD4 . The last command will set the baud rate to 9600.


 * Then on the PC, connect to a new Bluetooth device, use the same PIN number as above, make note of which serial (COM) port it maps to and then use Putty (Windows) or screen (Linux) to test!

Read the forums http://club.dx.com/forums/Forums.dx/threadid.1166641

// @from http://club.dx.com/forums/Forums.dx/threadid.1166641 // @see http://arduino.cc/en/Reference/SoftwareSerial


 * 1) include 

SoftwareSerial mySerial(10, 11); // RX, TX

void setup { Serial.begin(9600); Serial.println("Goodnight moon!"); //mySerial.begin(115200); mySerial.begin(9600);

delay(1000); mySerial.print("AT"); delay(1000); mySerial.print("AT+VERSION"); delay(1000); mySerial.print("AT+PIN1342"); // Set pin to 1342 delay(1000); mySerial.print("AT+NAMEFresaBT"); // Set the name to FresaBT delay(1000); //mySerial.print("AT+BAUD8"); // Set baudrate to 115200 mySerial.print("AT+BAUD4"); // Set baudrate to 9600 delay(1000); }

void loop // run over and over { if (mySerial.available) Serial.write(mySerial.read); if (Serial.available) mySerial.write(Serial.read); }