USB_Host_Shield_2.0/examples/Bluetooth/SPP/SPP.ino

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/*
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Example sketch for the RFCOMM/SPP Bluetooth library - developed by Kristian Lauszus
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For more information visit my blog: http://blog.tkjelectronics.dk/ or
send me an e-mail: kristianl@tkjelectronics.com
*/
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#include <SPP.h>
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#include <usbhub.h>
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USB Usb;
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USBHub Hub1(&Usb); // Some dongles have a hub inside
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BTD Btd(&Usb); // You have to create the Bluetooth Dongle instance like so
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/* You can create the instance of the class in two ways */
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SPP SerialBT(&Btd); // This will set the name to the defaults: "Arduino" and the pin to "1234"
//SPP SerialBT(&Btd, "Lauszus's Arduino","0000"); // You can also set the name and pin like so
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boolean firstMessage = true;
void setup() {
Serial.begin(115200);
while (!Serial); // Wait for serial port to connect - used on Leonardo, Teensy and other boards with built-in USB CDC serial connection
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if (Usb.Init() == -1) {
Serial.print(F("\r\nOSC did not start"));
while(1); //halt
}
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Serial.print(F("\r\nSPP Bluetooth Library Started"));
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}
void loop() {
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Usb.Task(); // The SPP data is actually not send until this is called, one could call SerialBT.send() directly as well
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if(SerialBT.connected) {
if(firstMessage) {
firstMessage = false;
SerialBT.println(F("Hello from Arduino")); // Send welcome message
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}
if(Serial.available())
SerialBT.write(Serial.read());
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if(SerialBT.available())
Serial.write(SerialBT.read());
}
else
firstMessage = true;
}