#include <KeyboardController.h>
#define SerialDebug Serial1
#include"TFT_eSPI.h"
#include"Free_Fonts.h" //include the header file
#define BUZZER_PIN WIO_BUZZER
// Initialize USB Controller
USBHost usb;
// Attach keyboard controller to USB
KeyboardController keyboard(usb);
void printKey();
TFT_eSPI tft;
int key;
// This function intercepts key press
void keyPressed() {
SerialDebug.print("Pressed: ");
printKey();
switch (key) {
case 20:
tft.drawString("C",140,100);
playTone(1915, 400);
break;
case 26:
tft.drawString("D",140,100);
playTone(1700, 400);
break;
case 8:
tft.drawString("E",140,100);
playTone(1519, 400);
break;
case 21:
tft.drawString("F",140,100);
playTone(1432, 400);
break;
case 23:
tft.drawString("G",140,100);
playTone(1275, 400);
break;
case 28:
tft.drawString("A",140,100);
playTone(1136, 400);
break;
case 24:
tft.drawString("B",140,100);
playTone(1014, 400);
break;
case 12:
tft.drawString("C+",140,100);
playTone(956, 400);
break;
}
}
// This function intercepts key release
void keyReleased() {
SerialDebug.print("Released: ");
printKey();
tft.fillScreen(TFT_BLACK);
digitalWrite(BUZZER_PIN, LOW);
}
void printKey() {
// getOemKey() returns the OEM-code associated with the key
key = keyboard.getOemKey();
SerialDebug.print(" key:");
SerialDebug.print(key);
// getModifiers() returns a bits field with the modifiers-keys
int mod = keyboard.getModifiers();
SerialDebug.print(" mod:");
SerialDebug.print(mod);
SerialDebug.print(" => ");
if (mod & LeftCtrl)
SerialDebug.print("L-Ctrl ");
if (mod & LeftShift)
SerialDebug.print("L-Shift ");
if (mod & Alt)
SerialDebug.print("Alt ");
if (mod & LeftCmd)
SerialDebug.print("L-Cmd ");
if (mod & RightCtrl)
SerialDebug.print("R-Ctrl ");
if (mod & RightShift)
SerialDebug.print("R-Shift ");
if (mod & AltGr)
SerialDebug.print("AltGr ");
if (mod & RightCmd)
SerialDebug.print("R-Cmd ");
// getKey() returns the ASCII translation of OEM key
// combined with modifiers.
SerialDebug.write(keyboard.getKey());
SerialDebug.println();
}
uint32_t lastUSBstate = 0;
void setup(){
tft.begin();
tft.setRotation(3);
tft.fillScreen(TFT_BLACK);
tft.setFreeFont(FSSBO24);
SerialDebug.begin( 115200 );
SerialDebug.println("Keyboard Controller Program started");
if (usb.Init())
SerialDebug.println("USB host did not start.");
delay( 20 );
//Coqnfigure pins to enable USB Host on Wio Terminal
digitalWrite(PIN_USB_HOST_ENABLE, LOW);
digitalWrite(OUTPUT_CTR_5V, HIGH);
pinMode(BUZZER_PIN, OUTPUT);
}
void loop()
{
// Process USB tasks
usb.Task();
uint32_t currentUSBstate = usb.getUsbTaskState();
if (lastUSBstate != currentUSBstate) {
SerialDebug.print("USB state changed: 0x");
SerialDebug.print(lastUSBstate, HEX);
SerialDebug.print(" -> 0x");
SerialDebug.println(currentUSBstate, HEX);
switch (currentUSBstate) {
case USB_ATTACHED_SUBSTATE_SETTLE: SerialDebug.println("Device Attached"); break;
case USB_DETACHED_SUBSTATE_WAIT_FOR_DEVICE: SerialDebug.println("Detached, waiting for Device"); break;
case USB_ATTACHED_SUBSTATE_RESET_DEVICE: SerialDebug.println("Resetting Device"); break;
case USB_ATTACHED_SUBSTATE_WAIT_RESET_COMPLETE: SerialDebug.println("Reset complete"); break;
case USB_STATE_CONFIGURING: SerialDebug.println("USB Configuring"); break;
case USB_STATE_RUNNING: SerialDebug.println("USB Running"); break;
}
lastUSBstate = currentUSBstate;
}
}
void playTone(int tone, int duration) {
for (long i = 0; i < duration * 1000L; i += tone * 2) {
digitalWrite(BUZZER_PIN, HIGH);
delayMicroseconds(tone);
digitalWrite(BUZZER_PIN, LOW);
delayMicroseconds(tone);
}
}
