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LCD

Zapojení

PALTERMINAL	ARDUINO
+5V	5V
GND	GND
SDA	A4
SCL	A5

#include <Wire.h> 
#include <LiquidCrystal_I2C.h>

// Set the LCD address to 0x27 for a 16 chars and 2 line display
LiquidCrystal_I2C lcd(0x38, 16, 2);

void setup()
{
	// initialize the LCD
	lcd.begin();

	// Turn on the blacklight and print a message.
	lcd.backlight();
	lcd.print("Hello, world!");
}

void loop()
{
	// Do nothing here...
}

Klávesnice

Zapojení

PALTERMINAL	ARDUINO
KEYBOARD-C	4
KEYBOARD-B	~5
KEYBOARD-A	~6
KEYBOARD-4	7
KEYBOARD-3	8
KEYBOARD-2	~9
KEYBOARD-1	~10

Code

#include <Arduino.h>
#include "ButtonMatrix.h" /** Include this header in order to work with the button matrix */

using namespace RSys;
static const uint32_t c_uiMonitorBaud = 115200; // USB monitoring baud rate
const uint16_t longPressDuration = 1000; /** Minimum duration of a long press */
const uint8_t COLS = 4; /** Number of button matrix columns */
const uint8_t ROWS = 3; /** Number of button matrix rows */

uint8_t colPins[COLS] = {7, 8,9,10}; /** Button matrix column pins */
uint8_t rowPins[ROWS] = {4,5,6}; /** Button matrix row pins */

Button buttons[ROWS][COLS] = {
    { ('#'), (1), (4) , (7)},
    { (0), (2), (5), (8)},
    { ('*'), (3), (6) , (9)},
};

ButtonMatrix matrix((Button*)buttons, rowPins, colPins, ROWS, COLS);

void setup()
{
    Serial.begin(c_uiMonitorBaud);

    matrix.init();  /** Initialize the ButtonMatrix*/
}


void loop()
{
    Button* pButton = NULL;
    const uint16_t numButtons = matrix.getNumButtons();
    if (matrix.update())
    {
        for (uint16_t idx = 0; idx < numButtons; idx++)
        {
            pButton = matrix.getButton(idx);
            if (pButton->isPressed())
            {
               Serial.print("Button pressed: ");Serial.println(pButton->getNumber());
            }
        }
    }

}