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I have a motor shield. I can put it on top of my arduino Mega and works perfect.

However, since the shield plugs in on top of the arduino board, I don't have access to 5V and GND from Arduino Mega.

I just have holes on the board with 5V and GND. (look at image)enter image description here

Do I have to solder a cable there to have access to 5V and GND? or there is another easier way?

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Since there are two grounds, a 2-pin terminal block of the type already on the board may fit. Or, since the shield doesn't obscure the far end of the Mega (the end with the high numbered I/Os), you could pick up 5V and Gnd there. The ends of the double-row female header have respectively, 2 each 5V and Gnd connectors. You would pick those up with breadboard wires, though it is admittedly less secure.

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  • do you mean that the 2 female header after 52 and 53 are 5v and GND ? (on the bottom right corner of my image) – Daniel Benedykt Mar 7 '16 at 13:41
  • Below 52,53 are both ground. Above 22,23 are both 5V. It also written on the board. – Gerben Mar 7 '16 at 16:26
  • ... in tiny script! It's easy to miss. – JRobert Mar 7 '16 at 17:20
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    It also looks like, to the right of the yellow square, are 3 rows of through-board holes. Labelled: +5V, Gnd, and A0 to A5. You could remove the shield temporarily, and solder on a couple of rows of sockets there, giving you 6 x +5V and 6 x Gnd connectors. – Nick Gammon♦ Mar 7 '16 at 20:25
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You can also use a Mega Screw Shield if you don't want to solder wires enter image description here

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