stcrooks:
floresta:
The chip on the "emall-4u I2C" says PCF8574T.
Not sure what else to give you..
Did you read the stuff above the point where you joined the thread, about the I2C address?
Edit: Well, if i try to post images the page doesn't even want to try if i hit post....
What technique did you try?
Don
Have you declared the address elswhere?
/*-----( Import needed libraries )-----*/
#include <Wire.h>
#include <LCD.h>
#include <LiquidCrystal_I2C.h> // F Malpartida's NewLiquidCrystal library
//Download: https://bitbucket.org/fmalpartida/new-liquidcrystal/downloads
// Move original LiquidCrystal library elsewhere, copy this in it's place
/-----( Declare Constants )-----/
#define I2C_ADDR 0x20 // Define I2C Address for the PCF8574A
//---(Following are the PCF8574 pin assignments to LCD connections )----
// This are different than earlier/different I2C LCD displays
#define BACKLIGHT_PIN 7
#define En_pin 4
#define Rw_pin 5
#define Rs_pin 6
#define D4_pin 0
#define D5_pin 1
#define D6_pin 2
#define D7_pin 3
#define LED_OFF 0
#define LED_ON 1
/-----( Declare objects )-----/
LiquidCrystal_I2C lcd(I2C_ADDR,En_pin,Rw_pin,Rs_pin,D4_pin,D5_pin,D6_pin,D7_pin);
Oh... It's there. I just managed to delete while i cleaned the code for the forum. I will edit the post..