LCD Retro Games

Project #40: Liquid Crystal Display Games

 Retro Game Jumping Jack

Arduino Sketch:

/* ===============================================================

      Project: LIQUID CRYSTAL DISPLAY TEST

      Author: J. B. Wylzan 

      Website: http://www.ihackrobot.blogspot.com

      Abstract: How to test the buttons on an LCD Panel

================================================================== */

//Sample using LiquidCrystal library
#include <LiquidCrystal.h>

// select the pins used on the LCD panel
LiquidCrystal lcd(8, 9, 4, 5, 6, 7);

int lcd_key     = 0;
int adc_key_in  = 0;
#define btnRIGHT  1
#define btnUP     2
#define btnDOWN   3
#define btnLEFT   4
#define btnSELECT 5
#define btnNONE   0

// read the buttons
int read_LCD_buttons()
{
 adc_key_in = analogRead(0);      // read the value from the sensor
 if (adc_key_in > 1000) return btnNONE;
 if (adc_key_in < 50)   return btnRIGHT; 
 if (adc_key_in < 195)  return btnUP;
 if (adc_key_in < 380)  return btnDOWN;
 if (adc_key_in < 555)  return btnLEFT;
 if (adc_key_in < 790)  return btnSELECT;  
 return btnNONE;  }

void setup()
{
 lcd.begin(16, 2);             
 lcd.setCursor(0,0);
 lcd.print("I.M. a piece of Code"); // print a simple message
}

void loop()
{
 lcd.setCursor(12,1);            
 lcd.print(millis()/1000);       // display seconds elapsed since power-up


 lcd.setCursor(0,1);            // move to the begining of the second line
 lcd_key = read_LCD_buttons();  // read the buttons

 switch (lcd_key)              
 {
   case btnRIGHT:
     {
     lcd.print("RIGHT ");
     break;
     }
   case btnLEFT:
     {
     lcd.print(adc_key_in);
     lcd.print(" LEFT");
     break;
     }
   case btnUP:
     {
     lcd.print("UP    ");
     break;
     }
   case btnDOWN:
     {
     lcd.print("DOWN  ");
     break;
     }
   case btnSELECT:
     {
     lcd.print("SELECT");
     break;
     }
     case btnNONE:
     {
     lcd.print("TEST  ");
     break;
     }
 }

}

Disclaimer:  We shall not be liable for any loss or damage of whatever nature - direct, indirect, consequential, or otherwise - which may arise as a result of your use of any information on this website. However, if you are interested in using any of the projects for personal or educational purposes, please inform the author by email. 

Public Domain Notice: Copyright (c) 2000. All rights reserved. This article is part of a book entitled iHackRobot. Copies are welcome to be shared or distributed publicly as long proper citations are observed. Please cite as follows: Biotronics: The Silver Species, Joey Lawsin, 1988, USA.

================================================================== 

The Homotronics® and WiSe® logos are registered trademarks. Copyright Biotronics© Inc. iHackRobot®. All Rights Reserved.
Patent Pending. 2000 © ®

A  L.A.W.S.I.N. Educational Production

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