keyboard encoder

HostChoice.net: keyboard encoder
Posted in: Code | by HostChoice.net | 2018 June 20


Arduino Duemilanove

Hello all,
This is the test code for a keyboard encoder

Arduino sketch to read data from 5 pin din

Thanks!
Code: [Select]

// code 232565898

// ********************************* 
// * Program By Michael S Holden * 
// * 5/21/2011 * 
// * Program Name "serialkeyboard" * 
// ********************************* 
/* 
https://forum.arduino.cc/index.php?topic=61820.0

This program was written to interface the EDE1144 
Keyboard Encoder chip to the Arduino micro controller. 
Pin "0" on the Arduino is used to intercept 
incoming serial data. The EDE1144 chip does 
all of the grunt work for the interface. Please 
remember that I/O pin 0 and pin 1 on the Arduino 
is used to upload sketches to the controller and 
you must unhook the keyboard first. This EDE1144 
Keyboard encoder will handle up to 16 keys and 
was designed to use with a HEX board. It has 
built in debounce, delay repeat and several 
features I did not use. 
*/

#include <LiquidCrystal.h> 
// initialize the LCD library with the numbers of the Arduino pins used 
LiquidCrystal lcd(3, 2, 4, 5, 6, 7); //LiquidCrystal(rs, enable, d4, d5, d6, d7) 
char inkey = 0; // receive incomming serial data 
 // soft incoding for numbers 
void setup() 
 { 
 Serial.begin(9600); // use com port to communicate with the keyboard 
 pinMode(2, OUTPUT); 
 pinMode(3, OUTPUT); 
 lcd.begin(20, 4); //20 colums and 4 rows lcd adopt your lcd to this 
 digitalWrite(2, LOW); 
 digitalWrite(3, HIGH); 
 lcd.setCursor(0, 0); 
 lcd.print("Keyboard ready"); 
 }

void loop() 
 { 
 // Trap serial data only 
 if (Serial.available() > 0) 
 { 
 inkey = Serial.read(); 
 show(); 
 } 
 } 
void show() 
 { 
 if ( inkey == 49) { inkey = 1;} // converts keyboard 49 to number 0 
 if ( inkey == 50) { inkey = 2;} 
 if ( inkey == 51) { inkey = 3;} 
 if ( inkey == 53) { inkey = 4;} 
 if ( inkey == 54) { inkey = 5;} 
 if ( inkey == 55) { inkey = 6;} 
 if ( inkey == 57) { inkey = 7;} 
 if ( inkey == 65) { inkey = 8;} 
 if ( inkey == 66) { inkey = 9;} 
 // inkey == 68) inkey = "*" 
 if ( inkey == 69) { inkey = 0;} 
 //if inkey == 70) inkey = # 
 lcd.clear(); 
 lcd.print(inkey, DEC); 
 }

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