Hello. I have an arduino nano (atmega 328) and my display there is combined with an yrwrobot 1602exactly like in this post (http://arduino-info.wikispaces.com/LCD-Blue-I2C) it is the v1.
i have been trying to get it to run with lcdproc but i can't figure out how my sketch should look lige to get it running ?
i tried to use this sketch but i just can't get it to work with freebsd and i am gettinginsane !
http://milesburton.com/USD_LCD_Display_(HD44780)_Running_on_Linux_via_Arduino
Included with the LiquidCrystal library are some example sketches.
Are you able to get the HelloWorld_I2C example to work?
CarlW:
Included with the LiquidCrystal library are some example sketches.Are you able to get the HelloWorld_I2C example to work?
CarlW:
Included with the LiquidCrystal library are some example sketches.Are you able to get the HelloWorld_I2C example to work?
of this is the one you refer to http://arduino-info.wikispaces.com/LCD-Blue-I2C#v3
then it works like a charm 
If Hello_World works then your NANO and LCD work ok. 
You need to go to lcdproc or freebsd forums for help... I'm not familiar with either of them.
Hi.
I got same LCD+I2C , and using with a minipro and fedora redhat.
I only got some troubles with character garbage but was related with speed/time out config over lcdproc.conf
I done all following milesburton's page.
can i ask witch libary i need to use. mabey a link ? i just formatted my computer and everytime i am trying to compile the sketch am i getting this error code (i have tried multiple liquidkrystal libarys) :
Arduino: 1.6.0 (Windows 7), Board: "Arduino Nano, ATmega328"
In file included from sketch_feb26b.ino:2:0:
C:\Users\daniel\Documents\Arduino\libraries\LiquidCrystal/LiquidCrystal.h:6:17: fatal error: SPI.h: No such file or directory
#include <SPI.h>
^
compilation terminated.
Error compiling.
This report would have more information with
"Show verbose output during compilation"
enabled in File > Preferences.
Are the # statements at the very top of the sketch, before any other code?
The først two lines is
// include the library code:
#include <LiquidCrystal.h