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Bluetooth V4.0 HM-11 BLE Module http://wiki.seeedstudio.com/Bluetooth_V4.0_HM_11_BLE_Module/ 6/1/2018 Bluetooth V4.0 HM-11 BLE Module http://wiki.seeedstudio.com/Bluetooth_V4.0_HM_11_BLE_Module/ 6/1/2018 Bluetooth V4.0 HM-11 BLE Module Speci¡cation Value http://wiki.seeedstudio.com/Bluetooth_V4.0_HM_11_BLE_Module/ 6/1/2018 Bluetooth V4.0 HM-11 BLE Module Speci¡cation Min Typ Max http://wiki.seeedstudio.com/Bluetooth_V4.0_HM_11_BLE_Module/ Unit 6/1/2018 Bluetooth V4.0 HM-11 BLE Module Pin Name Description http://wiki.seeedstudio.com/Bluetooth_V4.0_HM_11_BLE_Module/ 6/1/2018 Bluetooth V4.0 HM-11 BLE Module http://wiki.seeedstudio.com/Bluetooth_V4.0_HM_11_BLE_Module/ 6/1/2018 Bluetooth V4.0 HM-11 BLE Module http://wiki.seeedstudio.com/Bluetooth_V4.0_HM_11_BLE_Module/ 6/1/2018 Bluetooth V4.0 HM-11 BLE Module /* This example code is in the public domain. */ #include SoftwareSerial mySerial(2, 3); // RX, TX http://wiki.seeedstudio.com/Bluetooth_V4.0_HM_11_BLE_Module/ 6/1/2018 Bluetooth V4.0 HM-11 BLE Module void setup() { // Open serial communications and wait for port to open: Serial.begin(9600); while (!Serial) { ; // wait for serial port to connect. Needed for Leonardo only } Serial.println("Goodnight moon!"); // set the data rate for the SoftwareSerial port mySerial.begin(9600); // set master mySerial.print("AT+ROLE1"); delay(10000); } void loop() // run over and over { // set the data rate for the SoftwareSerial port mySerial.print("test I am master "); delay(10000); if (mySerial.available()) Serial.write(mySerial.read()); if (Serial.available()) mySerial.write(Serial.read()); } /* This example code is in the public domain. */ #include SoftwareSerial mySerial(2, 3); // RX, TX http://wiki.seeedstudio.com/Bluetooth_V4.0_HM_11_BLE_Module/ 6/1/2018 Bluetooth V4.0 HM-11 BLE Module void setup() { // Open serial communications and wait for port to open: Serial.begin(9600); while (!Serial) { ; // wait for serial port to connect. Needed for Leonardo only } Serial.println("Goodnight moon!"); // set the data rate for the SoftwareSerial port mySerial.begin(9600); // set slave mySerial.print("AT+ROLE0"); delay(10000); } void loop() // run over and over { // set the data rate for the SoftwareSerial port mySerial.print("test I am slave "); delay(10000); if (mySerial.available()) Serial.write(mySerial.read()); if (Serial.available()) mySerial.write(Serial.read()); } http://wiki.seeedstudio.com/Bluetooth_V4.0_HM_11_BLE_Module/ 6/1/2018