I wouldn’t bother. Arduino wifi shield has an antenna made of copper trace on the board, which is pretty weak. I don’t want to put anything above it. To answer your question, no pin 7 is used on both shields. I would do a serial lcd with keypad instead. The one that Liudr makes is the best ;) This shield is simply a recast of sansmart or other lcd shields that have been around for a long time. Nothing interesting. My own shield comes with lots of libraries and full project codes btw. Interestingly sparkfun is not interested in selling any of my designs. Good for me.
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