ok so i recently bought a 20 x 4 lcd with i2c and i was wondering where in the code i put the i2c id at?
i am using a library from here
https://github.com/andatche/arduino-lcd03 this is the code i have for my display 0x3F
this is the code :
/*
HelloWorld.ino - Arduino library for I2C LCD03 display from Robot Electronics
see
http://www.robot-electronics.co.uk/htm/Lcd03tech.htm Copyright (c) 2013 Ben Arblaster. All right reserved.
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include <Wire.h>
#include <LCD03.h>
// Create new LCD03 instance
LCD03 lcd;
void setup() {
// Initialise a 20x4 LCD
lcd.begin(20, 4);
// Turn on the backlight
lcd.backlight();
// Write to the LCD
lcd.print("Hello world");
// Wait for 5 seconds
delay(5000);
// Clear the LCD
lcd.clear();
}
void loop() {
// Set the cursor to the top left
lcd.home();
// Print the uptime in millis
lcd.print(millis());
}