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https://github.com/felis/USB_Host_Shield_2.0.git
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63 lines
2.4 KiB
C++
63 lines
2.4 KiB
C++
/*
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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
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send me an e-mail: kristianl@tkjelectronics.com
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*/
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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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SPP* SerialBT[2]; // We will use this pointer to store the two instance, you can easily make it larger if you like, but it will use a lot of RAM!
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const uint8_t length = sizeof(SerialBT)/sizeof(SerialBT[0]); // Get the lenght of the array
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boolean firstMessage[length] = { true }; // Set all to true
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uint8_t buffer[50];
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void setup() {
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for(uint8_t i=0;i<length;i++)
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SerialBT[i] = new SPP(&Btd); // This will set the name to the default: "Arduino" and the pin to "1234" for all connections
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Serial.begin(115200);
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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) {
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Serial.print(F("\r\nOSC did not start"));
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while(1); //halt
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}
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Serial.print(F("\r\nSPP Bluetooth Library Started"));
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}
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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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for(uint8_t i=0;i<length;i++) {
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if(SerialBT[i]->connected) {
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if(firstMessage[i]) {
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firstMessage[i] = false;
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SerialBT[i]->println(F("Hello from Arduino")); // Send welcome message
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}
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if(SerialBT[i]->available())
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Serial.write(SerialBT[i]->read());
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}
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else
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firstMessage[i] = true;
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}
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if(Serial.available()) {
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delay(10); // Wait for the rest of the data to arrive
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uint8_t i = 0;
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while(Serial.available() && i < sizeof(buffer)) // Read the data
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buffer[i++] = Serial.read();
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/*
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Set the connection you want to send to using the first character
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For instace "0Hello World" would send "Hello World" to connection 0
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*/
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uint8_t id = buffer[0]-'0'; // Convert from ASCII
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if(id < length && i > 1) { // And then compare to length and make sure there is any text
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if(SerialBT[id]->connected) { // Check if a device is actually connected
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for(uint8_t i2 = 0; i2 < i-1; i2++) // Don't include the first character
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buffer[i2] = buffer[i2+1];
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SerialBT[id]->write(buffer,i-1); // Send the data
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}
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}
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}
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}
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