Digital Outputs

Supporting Max/MSP versions 6 and up
Eni

Digital Outputs

Postby Eni » Thu Feb 19, 2009 7:22 am

heya,

in a project on uni i need to work with phidgets.
Only I don't know how to programm (or deal) with the digital outputs of an interface kit in MAX/MSP.
I want to turn on a servomotor, with the interface kit

how is this possible?
(and why does the servomotor have three inlets?)

elcray

Postby elcray » Thu Feb 19, 2009 9:21 am

Servo motors have 3 wires as they expect a special signal called a PWM signal. Servos are a special motor that send feedback back to a controller. This closed loop system allows a controller to tell a servo where to go and the feeback lets the controller know it got there; and to make adjustments as needed. Its for precision. Which, if you were just wanting to turn a motor off and on with digital outputs, doesn't sound like you need the precision. Why not just use a standard DC motor. You can find them cheap at any hobby shop or even Radio Shack. If you are stuck on using a servo, you will need a servo controller from phidgets, which works very well and is even cheaper than the 8/8/8.


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