Both should work but you need to consider the voltage restrictions in the pins. If you use the Arduino Expansion Module you can use up to 5V in the pins but if you are going to use the Edison Module the voltage limit is 1.8V so you may need to use voltage shifter in order to use sensors or shields that work with 3.3V or 5V.
Take a look at the Hardware Guides:
Thanks, I see now .. has the solder pads rather than screw terminals. Perfect!
If anyone else has more info, i`m looking to use this motor board: http://www.robotshop.com/en/roboclaw-dual-5a-6-30v-regenerative-motor-controller.html
Reading the docs it seems straight forward, but this is still new to me.
I’m glad to have helped you with this. If you have more questions about the information don’t hesitate to open a new thread with your question/doubt.
About the motor board. I haven’t seen projects with that specific shield but take a look at the Shield Testing Report you will see some tests with other shields that may help you.
Thanks, right now i`m really playing with the Edison, C and led's. I don`t have a lot of electronics experience so i`m trying to figure out how to get the 1.8v to "level shift" to power a 5v motor controller or any MOSFET, etc - using PWM. So far haven`t found a lot of info, but found a MOSFET that seems to accept 1.8v directly in the NTE2390.
Eventually of course a full board like the roboclaw will be what I use, but need to crawl first...
Checking out that shield report, thanks!