USB_Host_Shield_2.0/examples/GPIO/Input/Input.ino

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/* Example of reading USB Host Shield GPI input
Author: Brian Walton (brian@riban.co.uk)
*/
#include <UHS2_gpio.h>
// Satisfy the IDE, which needs to see the include statment in the ino too.
#ifdef dobogusinclude
#include <spi4teensy3.h>
#endif
#define INPUT_PIN 0
#define OUTPUT_PIN 0
USB Usb; //Create an UHS2 interface object
UHS2_GPIO GPIO(&Usb); //Create a GPIO object
void setup()
{
Serial.begin( 115200 );
#if !defined(__MIPSEL__)
while (!Serial); // Wait for serial port to connect - used on Leonardo, Teensy and other boards with built-in USB CDC serial connection
#endif
Serial.println("Start");
if (Usb.Init() == -1)
Serial.println("OSC did not start.");
delay( 200 );
}
void loop()
{
//Get the value of input, set value of output
int nValue = GPIO.digitalRead(INPUT_PIN);
nValue = (nValue?0:1);
GPIO.digitalWrite(OUTPUT_PIN, nValue);
}