I am using a 2x8 HD44780 LCD. The LCD is working fine and is displaying what it should. However, the backlight does not seem to be working.
The datasheet mentions forward voltage of 4.1V and a current of 60 mA. This gives me about 15ohms from a
5V supply. Here is how I am connecting it:
5V --> 15 ohms -->Anode of LCD (A).
Cathode of LCD (K) to GND.
Is there something obvious I am missing? The LCD module has a two holes marked A and K near the display.
Spec. is attached.