107 lines
3.5 KiB
C++
107 lines
3.5 KiB
C++
/* FILE: ARD_LCD_HCMODU0010_I2C_Hello_World_Example
|
|
DATE: 24/05/13
|
|
VERSION: 0.1
|
|
|
|
This is a simple example of how to use the Hobby Components 20 x 4 line
|
|
I2C LCD module (HCMODU0010). To use this module you will require the
|
|
appropriate HC_LiquidCrystal_I2C library, which can be downloaded from our support
|
|
forum:
|
|
|
|
http://forum.hobbycomponents.com
|
|
|
|
This code also demonstrates the correct pin assignment for the LCD. When you
|
|
run this program you should see a greeting message appear on the display.
|
|
|
|
|
|
DEVICE PINOUT (SPI Interface):
|
|
|
|
PIN 1: GND
|
|
PIN 2: +5V
|
|
PIN 3: SDA - Connect to Arduino analogue PIN 4
|
|
PIN 4: SCL - Connect to Arduino analogue PIN 5
|
|
|
|
|
|
You may copy, alter and reuse this code in any way you like, but please leave
|
|
reference to HobbyComponents.com in your comments if you redistribute this code.
|
|
This software may not be used directly for the purpose of selling products that
|
|
directly compete with Hobby Components Ltd's own range of products.
|
|
|
|
THIS SOFTWARE IS PROVIDED "AS IS". HOBBY COMPONENTS LTD MAKES NO WARRANTIES, WHETHER
|
|
EXPRESS, IMPLIED OR STATUTORY, INCLUDING, BUT NOT LIMITED TO, IMPLIED WARRANTIES OF
|
|
MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, ACCURACY OR LACK OF NEGLIGENCE.
|
|
HOBBY COMPONENTS SHALL NOT, IN ANY CIRCUMSTANCES, BE LIABLE FOR ANY DAMAGES,
|
|
INCLUDING, BUT NOT LIMITED TO, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES FOR ANY
|
|
REASON WHATSOEVER.
|
|
*/
|
|
|
|
|
|
/* Include the SPI/IIC Library */
|
|
#include <Wire.h>
|
|
#include "HC_LiquidCrystal_I2C.h"
|
|
|
|
/* Create some custom graphic characters to make a simple border */
|
|
uint8_t TopLeftCorner[] = {0x00,0x00,0x0f,0x08,0x0b,0x0a,0x0a,0x0a};
|
|
uint8_t TopRightCorner[] = {0x00,0x00,0x1e,0x02,0x1a,0x0a,0x0a,0x0a};
|
|
uint8_t BottomLeftCorner[] = {0x0a,0x0a,0x0b,0x08,0x0f,0x00,0x00,0x00};
|
|
uint8_t BottomRightCorner[] = {0x0a,0x0a,0x1a,0x02,0x1e,0x00,0x00,0x00};
|
|
uint8_t VerticalBar[] = {0x0a,0x0a,0x0a,0x0a,0x0a,0x0a,0x0a};
|
|
|
|
/* Initialise the LiquidCrystal library. Note that the displays will have a default I2C
|
|
address of either 0x27 or 0x3F. Uncomment one of the lines below depending on
|
|
the address of your module. */
|
|
|
|
//HC_LiquidCrystal_I2C lcd(0x27,20,4);
|
|
HC_LiquidCrystal_I2C lcd(0x3F,20,4);
|
|
|
|
void setup()
|
|
{
|
|
/* Initialise the LCD */
|
|
lcd.begin();
|
|
/* Transfer the custom characters into the LCD's memory */
|
|
lcd.createChar(0, TopLeftCorner);
|
|
lcd.createChar(1, TopRightCorner);
|
|
lcd.createChar(2, BottomLeftCorner);
|
|
lcd.createChar(3, BottomRightCorner);
|
|
lcd.createChar(4, VerticalBar);
|
|
}
|
|
|
|
/* Main program loop */
|
|
void loop()
|
|
{
|
|
/* Make sure the backlight is turned on */
|
|
lcd.backlight();
|
|
|
|
/* Use the custom graphic characters to draw a border */
|
|
lcd.setCursor(0, 0);
|
|
lcd.write(0); //Write the top left graphic
|
|
lcd.print("==================");
|
|
lcd.write(1); //Write the top right graphic
|
|
lcd.setCursor(0, 1);
|
|
lcd.write(4); //Write the vertical bar graphic
|
|
lcd.setCursor(0, 2);
|
|
lcd.write(4); //Write the vertical bar graphic
|
|
lcd.setCursor(19, 1);
|
|
lcd.write(4); //Write the vertical bar graphic
|
|
lcd.setCursor(19, 2);
|
|
lcd.write(4); //Write the vertical bar graphic
|
|
lcd.setCursor(0, 3);
|
|
lcd.write(2); //Write the bottom left graphic
|
|
lcd.print("==================");
|
|
lcd.write(3); //Write the bottom right graphic
|
|
|
|
/* Display some text inside the border */
|
|
while (1)
|
|
{
|
|
lcd.setCursor(2,1);
|
|
lcd.print("HOBBY COMPONENTS");
|
|
lcd.setCursor(2,2);
|
|
lcd.print("**HELLO WORLD**");
|
|
delay(500);
|
|
lcd.setCursor(2,1);
|
|
lcd.print(" ");
|
|
lcd.setCursor(2,2);
|
|
lcd.print(" ");
|
|
delay(500);
|
|
}
|
|
}
|
|
|