MotorShield on Due and external power

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hi all,

i want use arduino motorshield drive 2 motors: 12v, 78ma max each.

the documentation of motorshield says: "if motor require more 9v recommend separate power lines of shield , arduino board on shield mounted."

is necessary , for?

to me seems easiest power motorshield 12v , let due recieve power through motorshield.

however, if follow recommendation, separate power lines , power motorshield , due separately: can use same external power supply both (i. e. 12v) or should power due 9v relieve voltage regulator of due?

many hints!

jürgen

quote from: shiphrah on jun 06, 2013, 11:19 am

hi all,

i want use arduino motorshield drive 2 motors: 12v, 78ma max each.

the documentation of motorshield says: "if motor require more 9v recommend separate power lines of shield , arduino board on shield mounted."

is necessary , for?


12v max can put regulator without heatsink.  if regulator hot enough, go thermal shutdown.

quote
to me seems easiest power motorshield 12v , let due recieve power through motorshield.

however, if follow recommendation, separate power lines , power motorshield , due separately: can use same external power supply both (i. e. 12v) or should power due 9v relieve voltage regulator of due?

many hints!


you should power due separately don't risk melting anything.


Arduino Forum > Using Arduino > Motors, Mechanics, and Power (Moderator: fabioc84) > MotorShield on Due and external power


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