16X2 Backlight Negative Character LCD Not Working
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16X2 Backlight Negative Character LCD Not Working

by gregorious217 on Thu Jan 31, 2013 9:19 pm

I am having trouble getting my 16x 2 RGB character LCD working. I have soldered the headers on to the pcb and have followed the adafruit tutorial on wiring the LCD. I can see the light and control the contrast of the screen but see no characters.

I believe i have done every thing correctly but when i run the Arduino IDE Hello World sketch i do not see any characters printed to the LCD.

Here is my wiring:
Image

I believe my soldering to be okay, here is a photo of it:
Image
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Re: 16X2 Backlight Negative Character LCD Not Working

by adafruit_support_bill on Fri Feb 01, 2013 6:37 am

Was this display purchased from Adafruit?
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Re: 16X2 Backlight Negative Character LCD Not Working

by gregorious217 on Fri Feb 01, 2013 11:46 am

Yes it was. The link to the product page i here http://adafruit.com/products/399
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Re: 16X2 Backlight Negative Character LCD Not Working

by adafruit_support_bill on Fri Feb 01, 2013 12:18 pm

And what are you connecting it to? Can you post a larger photo of your wiring?
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Re: 16X2 Backlight Negative Character LCD Not Working

by gregorious217 on Fri Feb 01, 2013 1:28 pm

I can post a larger photo of the wiring this evening. It is connected to an Arduino UNO R3 with attached MakerShield. The wiring is per the instructions from the Adafruit tutorial.
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