I'm new here - be gentle 
I've tried a few other forums and got no response, so I'm hoping you guys can help me out. I got a few of these displays pretty cheaply, and being I2C I thought they should be pretty easy to get working, problem is I'm stuck. The datasheet for these displays is here - http://symon.id.au/symon/0900766b80f06185.pdf
I get that I need to send a device address byte, then a command or memory address byte, and then the data bytes. I've found some code on github from someone who has used this display before, unfortunately it was with a PIC not an AVR -https://github.com/Djhg2000/OpenHUDisplay/blob/master/m12by02aa.c
The code I am using so far is below, just to try to turn one of the three LED's on, but nothing I seem to do is working. Any help is greatly appreciated.
#include <Wire.h>
byte I2C_add = B10100000; //address #0
byte disp_write = B01000000; //write to display memory
byte disp_bright = B10011111; //turn on display, maximum brightness
byte led_write = B01000101; //write to LED's
void setup() {
Wire.begin();
}
void loop() {
Wire.beginTransmission(0);
Wire.write(I2C_add); //write to address #0
Wire.write(disp_bright); //turn on display
Wire.endTransmission();
delay(250);
Wire.beginTransmission(0);
Wire.write(I2C_add);
Wire.write(led_write); //write to LED
Wire.write(B01000101); //turn LED 2 on
Wire.endTransmission();
delay(1000);
}
