4 Bit Arduino LCD Library

LCD Keypad Shield for Arduino Duemilanove LCD1602

sku:OT143

Description

GP2D12 code:

#include

LCD4Bit_mod lcd = LCD4Bit_mod(2);

char GP2D12;

char a,b;

char str1[]="Renge:";

char str2[]=" Renge Over ";

char str3[]="cm";

void setup()

{

 lcd.init();

 lcd.clear();

 lcd.printIn("GP2D12 testing...");

}

void loop()

{

 GP2D12=read_gp2d12_range(1);

 if(GP2D12>80||GP2D12<10)

 {

 lcd.cursorTo(2,0);

 lcd.printIn(str2);

 }

 else

 {

 a=0x30+GP2D12/10;

 b=0x30+GP2D12%10;

 lcd.cursorTo(2, 3);

 lcd.printIn(str1);

 lcd.print(a);

 lcd.print(b);

 lcd.printIn(str3);

 }

 delay(50);

}

float read_gp2d12_range(byte pin)

{

 int tmp;

 tmp = analogRead(pin);

 if (tmp < 3)return -1;

 return (6787.0 /((float)tmp - 3.0)) - 4.0;

Specification

This is a 16x2 LCD Keypad module for ARDUINO / Arduino Diecimila Duemilanove / FREEDUINO board..

uses 4 Bit Arduino LCD Library

100% brand new and high quality