mirror of
https://github.com/arduino/Arduino.git
synced 2024-12-04 15:24:12 +01:00
61 lines
1.5 KiB
Plaintext
61 lines
1.5 KiB
Plaintext
/*
|
|
LiquidCrystal Library - Serial Input
|
|
|
|
Demonstrates the use a 16x2 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 displays text sent over the serial port
|
|
(e.g. from the Serial Monitor) on an attached 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
|
|
* 10K resistor:
|
|
* ends to +5V and ground
|
|
* wiper to LCD VO pin (pin 3)
|
|
|
|
Library originally added 18 Apr 2008
|
|
by David A. Mellis
|
|
library modified 5 Jul 2009
|
|
by Limor Fried (http://www.ladyada.net)
|
|
example added 9 Jul 2009
|
|
by Tom Igoe
|
|
|
|
http://www.arduino.cc/en/Tutorial/LiquidCrystal
|
|
*/
|
|
|
|
// 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);
|
|
|
|
void setup(){
|
|
// set up the LCD's number of rows and columns:
|
|
lcd.begin(2, 16);
|
|
// initialize the serial communications:
|
|
Serial.begin(9600);
|
|
}
|
|
|
|
void loop()
|
|
{
|
|
// when characters arrive over the serial port...
|
|
if (Serial.available()) {
|
|
// wait a bit for the entire message to arrive
|
|
delay(100);
|
|
// clear the screen
|
|
lcd.clear();
|
|
// read all the available characters
|
|
while (Serial.available() > 0) {
|
|
// display each character to the LCD
|
|
lcd.write(Serial.read());
|
|
}
|
|
}
|
|
}
|