This is a really small library to control a 16x2 LCD character display over the I2C bus in Arduino.
You will need an ATmega328 with the 8Mhz breadboard bootloader.
The ATmega328 works as a display controller for the really common and available 16x2 screens based on the HD44780 parallel interface.
This library is currently a little bit limited. It only support the following functions from Liquid Crystal:
home() clear() setCursor(col, row) print()*
*Limited functionality: currently it only supports strings as data input.
For more info visit: http://blog.teubi.co/ Or write me at: 'info at teubi dot co'
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Copy LiquidCrystalI2C to your Arduino/libraries folder.
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Prepare your ATmega328 with the 8Mhz breadboard bootloader. For doing this you can follow the instructions at this address:
Look for the section "Minimal Circuit".
- Wire the LCD screen as shown on the picture:
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Connect the lines A4 and A5 between your Arduino and the ATmega328 use a couple of 4.7K pull-up resistors to VCC.
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Upload the Sketch "WireSlave" to the ATMega328.
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Upload the Sketch "WireMaster" to your Arduino.
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Enjoy!
LiquidCrystal-I2C a simple way to control a 16x2 LCD display over I2C. Copyright (C) 2014 Mario Gomez.
This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 3 of the License, or any later version.
This program 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 General Public License for more details.
You should have received a copy of the GNU General Public License along with this program; if not write to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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