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