mirror of
https://github.com/taigrr/arduinolibs
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55 lines
1.7 KiB
Plaintext
55 lines
1.7 KiB
Plaintext
/*
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This example demonstrates how to use the FreetronicsLCD library, which extends the
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standard LiquidCrystal library to provide support for the Freetronics back light
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and Up/Down/Left/Right/Select buttons. More information on the shield here:
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http://www.freetronics.com/pages/16x2-lcd-shield-quickstart-guide
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This example is placed into the public domain.
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*/
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// include the library code:
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#include <FreetronicsLCD.h>
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// initialize the library
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FreetronicsLCD lcd;
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// Note: if you are using the USBDroid and have reassigned pin D9 on the LCD shield to some
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// other pin (e.g. A1), then you will need to initialize the shield with something like:
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// FreetronicsLCD lcd(A1);
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// See also: http://www.freetronics.com/pages/combining-the-lcd-keypad-shield-and-the-usbdroid
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void setup() {
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// Enable the screen saver, which will automatically blank the screen after 10 seconds.
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// The screen will wake up again when a button is pressed or lcd.display() is called.
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lcd.enableScreenSaver();
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// Print a message to the LCD.
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lcd.print("hello, world!");
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}
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void loop() {
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// set the cursor to column 0, line 1
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// (note: line 1 is the second row, since counting begins with 0):
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lcd.setCursor(0, 1);
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// print the number of seconds since reset:
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lcd.print(millis()/1000);
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// print the name of the button that is currently pressed
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lcd.setCursor(8, 1);
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int button = lcd.getButton();
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if (button == LCD_BUTTON_LEFT)
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lcd.print("LEFT");
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else if (button == LCD_BUTTON_RIGHT)
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lcd.print("RIGHT");
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else if (button == LCD_BUTTON_UP)
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lcd.print("UP");
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else if (button == LCD_BUTTON_DOWN)
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lcd.print("DOWN");
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else if (button == LCD_BUTTON_SELECT)
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lcd.print("SELECT");
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else if (button < 0) // button release
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lcd.print(" ");
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}
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