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.
Congrat with Your arduino and display.This guy is telling some about LCD if You understand english http://youtu.be/oIiDseJO4dMIn the tech. manual for display, You can read the typical voltage for the background light.My display has maximum 4,6 volt and typical 4,2 volt ( You should try to achieve your display typical background voltage by connecting a serial resistor, as another poster said).best regards
I know you want to help but if you read my post and inspected the picture, you should conclude that the OP failed to power the LCD. Unless OP powers the LCD, there is no need for more discussion.
The only danger with the tutorial on ladyada's site is that it assumesthat the lcd does not need a current limiting resistor as it is gearedtowards the lcd she sells.
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