Anybody try this el-cheapo TWI LCD module

Other Hardware Displays
3

I've always had great luck dealing with that supplier, have you tried the sample program they put on ebay itself?

#include <Wire.h>
#include <LCDI2C4Bit.h>
//int ADDR = 0x27;
int ADDR = 0xA7;
byte x = 0;
byte data = 1;
byte c;
LCDI2C4Bit lcd = LCDI2C4Bit(ADDR,4,20);

void setup()

{
  // Serial.begin(9600);
  Wire.begin(); // join i2c bus (address optional for master)

  lcd.init();
  lcd.clear();

  lcd.cursorTo(0,0);
  lcd.printIn("WWW.WIDE.HK");
  lcd.cursorTo(2,0);
  lcd.printIn("I2C 1602 LCD");

}

void loop()

{
  lcd.backLight(true);  delay(1000);
  lcd.backLight(false);  delay(1000);
}