I have just acquired this LCD
http://www.satistronics.com/myfiles/file/LCD/RT12864J-1.pdf
Even though it is powered (pin 1 ground)(pin2 4.8 V (measured)) (pin 3 is grounded).
The LCD shows no life at all (no brightness). I measured the VEE on pin 18 is (-9.5 V). Also, I have connected pin 3 to pin 18 but again no life. The lcd is controlled by ATMEGA8L-8PU. It is appreciated if anyone could hint to anything I am missing. Thanks in advance. Esmat
The LCD shows no life at all (no brightness)
The back light is powered from BLA and BLK, and you need a current limiting resistor.
How have you wired it up and what software are you running? It won't do anything without the proper software.
Thanks Mike for your hint. The way I connect the LCD is the same as in the above datasheet pdf. The 2 exceptions that I had is pin 3 was set to ground, as I indicated before and BLA and BLK were not connected. The software that I used is that given by Arduino in this link Arduino Playground - GLCDks0108
(with the exception of pin designations). When I connected the BLA and BLK and biased pin3 to (-5.35 V) I got the LCD displaying. Thanks again.