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Author Topic: powering solenoids with sparkfun power drivers  (Read 1628 times)
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Hi Arduino world,

I am working solo on a project, and would really like to have someone confirm my schematic before I buy the parts. I have studied the datasheets for everything, so I think this setup should work. I'd really appreciate any comments on this basic layout. I should note that I don't need to do any PWM switching on the solenoids.

Here's what I'm trying to do:
-control 12 solenoids (12v 10w push) from the arduino for use as a percussion instrument. The solenoids should actuate quickly off-on-off to get a nice percussive sound. Each solenoid will only be actuated once every 5 seconds maximum.

Here's my proposed schematic to do this:
-Arduino using its 12 digital outputs
-2 sparkfun power driver shields (each has 6 inputs) ( http://www.sparkfun.com/products/10618 )
-1 12-volt power source powering the power driver shileds
-12 solenoids (12v 10w push) powered by the sparkfun shields (6 solenoids per shield)

Here is my schematic image:


Any comments appreciated!
thanks
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If you only ever push one solenoid at a time, a 12V 1A power supply might be sufficient. However, if you need to power multiples, you will want a much beefier power supply. I'd go for a 12V 10A supply (120 Watts) to make sure that it won't croak when you pull many of them at a time.
Other than that, your diagram looks like it should work.
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Extremely helpful, thank you!
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Kirchheim (Teck) - BW - Germany
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I'm working on a similar project and I wonder, whether these SprakFun Power Drivers worked for your ?

thank you
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