mirror of
https://github.com/arduino/Arduino.git
synced 2025-01-18 07:52:14 +01:00
Added example to demonstrate LiquidCrystal chreateChar() function
This commit is contained in:
parent
df00d3e5f3
commit
fcb66ddccd
@ -0,0 +1,138 @@
|
||||
/*
|
||||
LiquidCrystal Library - Custom Characters
|
||||
|
||||
Demonstrates how to add custom characters on an LCD display.
|
||||
The LiquidCrystal library works with all LCD displays that are
|
||||
compatible with the Hitachi HD44780 driver. There are many of
|
||||
them out there, and you can usually tell them by the 16-pin interface.
|
||||
|
||||
This sketch prints "I <heart> Arduino!" and a little dancing man
|
||||
to the LCD.
|
||||
|
||||
The circuit:
|
||||
* LCD RS pin to digital pin 12
|
||||
* LCD Enable pin to digital pin 11
|
||||
* LCD D4 pin to digital pin 5
|
||||
* LCD D5 pin to digital pin 4
|
||||
* LCD D6 pin to digital pin 3
|
||||
* LCD D7 pin to digital pin 2
|
||||
* LCD R/W pin to ground
|
||||
* 10K potentiometer:
|
||||
* ends to +5V and ground
|
||||
* wiper to LCD VO pin (pin 3)
|
||||
* 10K poterntiometer on pin A0
|
||||
|
||||
created21 Mar 2011
|
||||
by Tom Igoe
|
||||
Based on Adafruit's example at
|
||||
https://github.com/adafruit/SPI_VFD/blob/master/examples/createChar/createChar.pde
|
||||
|
||||
This example code is in the public domain.
|
||||
http://www.arduino.cc/en/Tutorial/LiquidCrystal
|
||||
|
||||
Also useful:
|
||||
http://icontexto.com/charactercreator/
|
||||
|
||||
*/
|
||||
|
||||
// include the library code:
|
||||
#include <LiquidCrystal.h>
|
||||
|
||||
// initialize the library with the numbers of the interface pins
|
||||
LiquidCrystal lcd(12, 11, 5, 4, 3, 2);
|
||||
|
||||
// make some custom characters:
|
||||
byte heart[8] = {
|
||||
0b00000,
|
||||
0b01010,
|
||||
0b11111,
|
||||
0b11111,
|
||||
0b11111,
|
||||
0b01110,
|
||||
0b00100,
|
||||
0b00000
|
||||
};
|
||||
|
||||
byte smiley[8] = {
|
||||
0b00000,
|
||||
0b00000,
|
||||
0b01010,
|
||||
0b00000,
|
||||
0b00000,
|
||||
0b10001,
|
||||
0b01110,
|
||||
0b00000
|
||||
};
|
||||
|
||||
byte frownie[8] = {
|
||||
0b00000,
|
||||
0b00000,
|
||||
0b01010,
|
||||
0b00000,
|
||||
0b00000,
|
||||
0b00000,
|
||||
0b01110,
|
||||
0b10001
|
||||
};
|
||||
|
||||
byte armsDown[8] = {
|
||||
0b00100,
|
||||
0b01010,
|
||||
0b00100,
|
||||
0b00100,
|
||||
0b01110,
|
||||
0b10101,
|
||||
0b00100,
|
||||
0b01010
|
||||
};
|
||||
|
||||
byte armsUp[8] = {
|
||||
0b00100,
|
||||
0b01010,
|
||||
0b00100,
|
||||
0b10101,
|
||||
0b01110,
|
||||
0b00100,
|
||||
0b00100,
|
||||
0b01010
|
||||
};
|
||||
void setup() {
|
||||
// create a new character
|
||||
lcd.createChar(0, heart);
|
||||
// create a new character
|
||||
lcd.createChar(1, smiley);
|
||||
// create a new character
|
||||
lcd.createChar(2, frownie);
|
||||
// create a new character
|
||||
lcd.createChar(3, armsDown);
|
||||
// create a new character
|
||||
lcd.createChar(4, armsUp);
|
||||
|
||||
// set up the lcd's number of columns and rows:
|
||||
lcd.begin(16, 2);
|
||||
// Print a message to the lcd.
|
||||
lcd.print("I ");
|
||||
lcd.write(0);
|
||||
lcd.print(" Arduino! ");
|
||||
lcd.write(1);
|
||||
|
||||
}
|
||||
|
||||
void loop() {
|
||||
// read the potentiometer on A0:
|
||||
int sensorReading = analogRead(A0);
|
||||
// map the result to 200 - 1000:
|
||||
int delayTime = map(sensorReading, 0, 1023, 200, 1000);
|
||||
// set the cursor to the bottom row, 5th position:
|
||||
lcd.setCursor(4, 1);
|
||||
// draw the little man, arms down:
|
||||
lcd.write(3);
|
||||
delay(delayTime);
|
||||
lcd.setCursor(4, 1);
|
||||
// draw him arms up:
|
||||
lcd.write(4);
|
||||
delay(delayTime);
|
||||
}
|
||||
|
||||
|
||||
|
Loading…
x
Reference in New Issue
Block a user