arduino-esp32/libraries/USB/examples/Keyboard/KeyboardMessage/KeyboardMessage.ino
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Co-authored-by: pre-commit-ci-lite[bot] <117423508+pre-commit-ci-lite[bot]@users.noreply.github.com>
Co-authored-by: Rodrigo Garcia <rodrigo.garcia@espressif.com>
2024-04-15 19:40:56 +03:00

63 lines
1.6 KiB
C++

/*
Keyboard Message test
For the Arduino Leonardo and Micro.
Sends a text string when a button is pressed.
The circuit:
- pushbutton attached from pin 0 to ground
- 10 kilohm resistor attached from pin 0 to +5V
created 24 Oct 2011
modified 27 Mar 2012
by Tom Igoe
modified 11 Nov 2013
by Scott Fitzgerald
This example code is in the public domain.
http://www.arduino.cc/en/Tutorial/KeyboardMessage
*/
#ifndef ARDUINO_USB_MODE
#error This ESP32 SoC has no Native USB interface
#elif ARDUINO_USB_MODE == 1
#warning This sketch should be used when USB is in OTG mode
void setup() {}
void loop() {}
#else
#include "USB.h"
#include "USBHIDKeyboard.h"
USBHIDKeyboard Keyboard;
const int buttonPin = 0; // input pin for pushbutton
int previousButtonState = HIGH; // for checking the state of a pushButton
int counter = 0; // button push counter
void setup() {
// make the pushButton pin an input:
pinMode(buttonPin, INPUT_PULLUP);
// initialize control over the keyboard:
Keyboard.begin();
USB.begin();
}
void loop() {
// read the pushbutton:
int buttonState = digitalRead(buttonPin);
// if the button state has changed,
if ((buttonState != previousButtonState)
// and it's currently pressed:
&& (buttonState == LOW)) {
// increment the button counter
counter++;
// type out a message
Keyboard.print("You pressed the button ");
Keyboard.print(counter);
Keyboard.println(" times.");
}
// save the current button state for comparison next time:
previousButtonState = buttonState;
}
#endif /* ARDUINO_USB_MODE */