I tried to assemble Adafruit's Arduino LCD 16 x 2 using the instructions RGB LCD Shield: Control a 16x2 Character LCD using 2 pins - Assembly without any success.
After assembly, I uploaded the HelloWorld example sketch on to the Arduino. The shield doesn't seem to be working. The LCD didn't turn on.
If I push back/press the LCD it turn on. Any idea on how to troubleshoot this?
Greenonline
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Please upload the picture of your completed board.Chetan Bhargava– Chetan Bhargava2016年02月21日 22:52:15 +00:00Commented Feb 21, 2016 at 22:52
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Where have the photos disappeared to? Where they lost when the answer that you posted was deleted? If so, could you edit your question and add the photos there? It may help other people who are having the same issue as you did.Greenonline– Greenonline2016年03月28日 18:30:47 +00:00Commented Mar 28, 2016 at 18:30
1 Answer 1
By visually assessing the pictures, the issue seems to be due to poor soldering job.
You should try re-heating the soldering joints and make sure they are clean. There could be dry joints that may not be conducting signals.
Also you should upload pictures to your question post, not as an answer.
answered Feb 21, 2016 at 23:00
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Thanks Chetan. I reheated some of the soldering joints and its started working. Thanks again! Feeling like a champ!user1261620– user12616202016年02月22日 22:43:15 +00:00Commented Feb 22, 2016 at 22:43
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@user1261620 I'm glad that my post helped you in fixing the board. Before investing in expensive kits, you can practice soldering on some cheap scrap boards.Chetan Bhargava– Chetan Bhargava2016年02月22日 22:55:23 +00:00Commented Feb 22, 2016 at 22:55