I created a simple PCB to act as an Arduino LCD shield in order to replace my breadboard and jumper wires.
The shield turns the LCD on when stacked on top of my arduino. It turns the LCD on but it looks like there’s no data being displayed. White blocks are displayed at first and then a blinking white block appears on the second row. Here is how it looks like: [LCD Shield PCB] http://imgur.com/a/HAqtS
I am wondering what can be wrong and what I can do to resolve this. I tried soldering on different LCDs but it seems like that’s not the problem.
Any help appreciated.