I have the LCD 2004 20X4 blue and IIC/I2C Serial Interface Board Module For Arduino LCD1602 LCD2004 Display (http://www.ebay.co.uk/itm/281366957696?_trksid=p2060353.m2749.l2649&ssPageName=STRK%3AMEBIDX%3AIT)
The problem is i can't get it work, i already buy 2 LCDs and Modules and they do exactly same thing. Address is 0x27 for sure.
I have tried very libraries including https://bitbucket.org/fmalpartida/new-liquidcrystal/wiki/Home The only thing i can do is blink LCD backlight but text is never shown on LCD, i also have tried lots of combinations in fma constructor and still i can't get it to work. Some code will cause lcd fast blink without show anything.
I also tested with this:
//this is for a unlabeled i2c LCD interface board which allows for changing its address // addr, en,rw,rs,d4,d5,d6,d7 LiquidCrystal_I2C lcd(0x27, 2, 1, 0, 4, 5, 6, 7); // Set the LCD I2C address // The address pins A0-A2 are pulled high with the three 10k resistors at the bottom of the picture. // If the three pads A0-A2 are jumpered, the address is changed to 0x20.
Still doesn't work...
Any suggestions? I'm getting tired of it :(