protocol/usb_hid/USB_Host_Shield_2.0/examples/adk/demokit_20/demokit_20.ino

   1 #include <adk.h>
   2 #include <usbhub.h>
   3
   4 // Satisfy IDE, which only needs to see the include statment in the ino.
   5 #ifdef dobogusinclude
   6 #include <spi4teensy3.h>
   7 #include <SPI.h>
   8 #endif
   9
  10 USB Usb;
  11 USBHub hub0(&Usb);
  12 USBHub hub1(&Usb);
  13 ADK adk(&Usb,"Google, Inc.",
  14             "DemoKit",
  15             "DemoKit Arduino Board",
  16             "1.0",
  17             "http://www.android.com",
  18             "0000000012345678");
  19 uint8_t  b, b1;
  20
  21
  22 #define  LED1_RED       3
  23 #define  BUTTON1        2
  24
  25 void init_buttons()
  26 {
  27         pinMode(BUTTON1, INPUT);
  28
  29         // enable the internal pullups
  30         digitalWrite(BUTTON1, HIGH);
  31 }
  32
  33 void init_leds()
  34 {
  35         digitalWrite(LED1_RED, 0);
  36
  37         pinMode(LED1_RED, OUTPUT);
  38 }
  39
  40 void setup()
  41 {
  42         Serial.begin(115200);
  43 #if !defined(__MIPSEL__)
  44   while (!Serial); // Wait for serial port to connect - used on Leonardo, Teensy and other boards with built-in USB CDC serial connection
  45 #endif
  46         Serial.println("\r\nADK demo start");
  47
  48         if (Usb.Init() == -1) {
  49           Serial.println("OSCOKIRQ failed to assert");
  50         while(1); //halt
  51         }//if (Usb.Init() == -1...
  52
  53
  54         init_leds();
  55         init_buttons();
  56         b1 = digitalRead(BUTTON1);
  57 }
  58
  59 void loop()
  60 {
  61   uint8_t rcode;
  62   uint8_t msg[3] = { 0x00 };
  63    Usb.Task();
  64
  65    if( adk.isReady() == false ) {
  66      analogWrite(LED1_RED, 255);
  67      return;
  68    }
  69    uint16_t len = sizeof(msg);
  70
  71    rcode = adk.RcvData(&len, msg);
  72    if( rcode ) {
  73      USBTRACE2("Data rcv. :", rcode );
  74    }
  75    if(len > 0) {
  76      USBTRACE("\r\nData Packet.");
  77     // assumes only one command per packet
  78     if (msg[0] == 0x2) {
  79       switch( msg[1] ) {
  80         case 0:
  81           analogWrite(LED1_RED, 255 - msg[2]);
  82           break;
  83       }//switch( msg[1]...
  84     }//if (msg[0] == 0x2...
  85    }//if( len > 0...
  86
  87    msg[0] = 0x1;
  88
  89    b = digitalRead(BUTTON1);
  90    if (b != b1) {
  91      USBTRACE("\r\nButton state changed");
  92      msg[1] = 0;
  93      msg[2] = b ? 0 : 1;
  94      rcode = adk.SndData( 3, msg );
  95      if( rcode ) {
  96        USBTRACE2("Button send: ", rcode );
  97      }
  98      b1 = b;
  99     }//if (b != b1...
 100
 101
 102       delay( 10 );
 103 }