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Arduino servo shield

Is there any shield out there that lets me plug in a servo without running three wires to the ground, power supply, and the pin?

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I re-read your question a few times and if I were to take it literally, it seems you are asking if you can make a servo work without plugging it in. No, it won't. All 3 wires have to go somewhere.

I think you may be asking if you can plug in your servo without the power going one place and the signal going another, no?

Now, if you are asking if there are shields that have 3 pins next to each other --thus allowing you to plug a servo in directly, then yes. These exist sorta everywhere. There are many shields with pins dedicated for servos. There are dedicated servo drivers (i2c, serial, spi and with their own brain on board). There are so many boards out there that are set-up ready for servos, I am kinda surprised you have not seen any of them.

Could you get a bit more specific in terms of what you are looking for exactly?

Out of curiosity, I googled "Servo Shield"...

It was a metric ton of results. 

(I'm not sayin', I'm just sayin')



But like chris said, some have all the 3 wires you need next to each other so you can just plug it right in.

Some arduino clones even have them without needing any extra shields.

it's something like that: http://letsmakerobots.com/node/29709

or That link