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Old 11-30-2012, 07:34 AM   #100 (permalink)
Daox
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A servo is a good way to go if you want to control how far the grill opens. I think others have mentioned it, perhaps not in this thread specifically.

The main benefit of using a power door lock actuator is the price. The servo deal looks to be ~$25 from your links. You can get a power door lock actuator on ebay for $4 shipped, and the h-bridge on mouser for $5 plus shipping.

NEW CAR UNIVERSAL POWER DOOR LOCK ACTUATOR MOTOR 12 volt U.S.A seller | eBay
TLE52052XK Infineon Technologies | Mouser

I happened to already have the door lock actuator, so all I needed was an h-bridge.

Options are always good though!
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