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I'm new to robotics. I would like to know if 56 output lines can be taken from an arduino or raspberry pi?

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  • $\begingroup$ What does output lines mean? Analog? Digital? PWM?... $\endgroup$ – dm76 Aug 16 '14 at 7:12
  • $\begingroup$ Digital output lines $\endgroup$ – chrisjzach Aug 16 '14 at 7:39
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    $\begingroup$ how about you look at the docs for the arduino and raspberry to find how many they have?? $\endgroup$ – dm76 Aug 17 '14 at 16:42
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From the Arduinos only the "DUE" will work. It has 54 Digital IOs and 2 Analog Outputs.

The newest raspberry has "only" 40 IOs, so it won't fit your specs.

Another possibility would be the "BeagleBone Black" with up to 69 IOs.

http://www.raspberrypi.org/product/model-b-plus/
http://elinux.org/Beagleboard:BeagleBoneBlack
http://arduino.cc/en/pmwiki.php?n=Main/ArduinoBoardDue

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