hey there

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bryanperito

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i am having problem on how to make that stupid automatic door to close and open whenever a person or thing entered how is that....i saw some of its appllications at the city...
 
bryanperito said:
i am having problem on how to make that stupid automatic door to close and open whenever a person or thing entered how is that....i saw some of its appllications at the city...
Click to expand...

They usually use microwave radar to detect a body approaching, you could use ultrasonics to make a less reliable version.
 
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