I2C 16x2 RGB LCD Pi Plate - no text

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

Moderators: adafruit_support_bill, adafruit

Please be positive and constructive with your questions and comments.
Locked
TW79
 
Posts: 24
Joined: Fri Jun 13, 2014 1:25 pm

I2C 16x2 RGB LCD Pi Plate - no text

Post by TW79 »

I purchased the I2C 16x2 RGB LCD Pi Plate with the 16x2 display. I installed the software in the tutorial. The LCDtest.py program runs successfully. All the colors are rotate through, and the correct buttons work correctly.

However, no text is displayed, and no black boxes are present when the Pot is turned to the extreme in either direction.

What may I have done wrong here? Pictures of soldering attached.
Attachments
IMG_20140701_134317_028 (800x450).jpg
IMG_20140701_134317_028 (800x450).jpg (278.52 KiB) Viewed 236 times
IMG_20140701_134258_277 (800x450).jpg
IMG_20140701_134258_277 (800x450).jpg (271.07 KiB) Viewed 236 times

User avatar
adafruit_support_rick
 
Posts: 35092
Joined: Tue Mar 15, 2011 11:42 am

Re: I2C 16x2 RGB LCD Pi Plate - no text

Post by adafruit_support_rick »

The soldering on the LCD pins is not adequate. Go over those pins again and make sure that the solder flows completely over the pad.

TW79
 
Posts: 24
Joined: Fri Jun 13, 2014 1:25 pm

Re: I2C 16x2 RGB LCD Pi Plate - no text

Post by TW79 »

Thank you. That solved my problem!

Locked
Please be positive and constructive with your questions and comments.

Return to “Glowy things (LCD, LED, TFT, EL) purchased at Adafruit”