Hello.
You can nearly spot the backlight connection pins at the right side of dpy.
If he's eager to continue, he dont need the light unless its environment is dark?
best regards
dc42:
Unfortunately, all of those resistors are too high to use as a series resistor for the backlight. [EDIT: the first is 1.5K, the second is 15K and the third is 3?K, I think you misread Silver because it doesn't make sense in that position.]If you have a multimeter, you can check whether the LCD includes a backlight or not. Disconnect the wires to pins 15 and 16 of the lcd, then measure the resistance between each of those pins and the LED A and K connections (these are the two soldered connections at one end of the LCD). If you find that each of pins 15 and 16 is directly connected to one of the LED pins, then there is no built-in series resistor, and you risk burning out the backlight by not using one.