16X2 Backlight Negative Character LCD Not Working

EL Wire/Tape/Panels, LEDs, pixels and strips, LCDs and TFTs, etc products from Adafruit

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gregorious217
 
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16X2 Backlight Negative Character LCD Not Working

Post by gregorious217 »

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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adafruit_support_bill
 
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Re: 16X2 Backlight Negative Character LCD Not Working

Post by adafruit_support_bill »

Was this display purchased from Adafruit?

gregorious217
 
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Re: 16X2 Backlight Negative Character LCD Not Working

Post by gregorious217 »

Yes it was. The link to the product page i here http://adafruit.com/products/399

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adafruit_support_bill
 
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Re: 16X2 Backlight Negative Character LCD Not Working

Post by adafruit_support_bill »

And what are you connecting it to? Can you post a larger photo of your wiring?

gregorious217
 
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Joined: Thu Jan 31, 2013 9:59 pm

Re: 16X2 Backlight Negative Character LCD Not Working

Post by gregorious217 »

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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