I want to ask whether this shield will allow me to use the free pins of arduino for other functions?

  • Anything that's not connected to something on the shield can be wired to something else of your choice. The trick, though, is to know what is connected to where on the board. Is there a schematic? – Majenko May 17 '16 at 14:32
  • @Majenko Schematic is what I was searching for but I could not find any, all i could dig up is this page, – Aaditya Sahay May 17 '16 at 14:33
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    Then all you can do is buy one and inspect it closely and follow tracks around. It looks to use a shift register it its core, so will be using very few pins. – Majenko May 17 '16 at 14:34
  • @Majenko Alright thanks, the only problem is I have already spent 90 percent of my pocket money, so I wanted to double check anyways thanks, I shall order it – Aaditya Sahay May 17 '16 at 14:36
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    @Gerben I got the shield delivered and actually it came with female header seaters on the top which can make it stackable. Thanks for the help though – Aaditya Sahay May 23 '16 at 19:08

Yes, this motor shield can allow other components to be used. You just have to make sure that the pins being used by the shield are not used by you for other tasks. Generally all shields are designed such that they do not hamper the productivity of arduino. What use would only a motor driver be? Therefore they ensure that they do not block other pins.

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