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How to make a motion or weight sensor? Answered

So i am trying to make a sensor to sense if they're is a certain amount of weight in a car seat, or motions. But i do not know how, i am also trying to hook it up to an app so in case the sensors pick up anything there is a notification or if the weight sensor exeds a certain weight limit. Does anyone know how to go about this?

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user
rickharris (author)2017-06-27

This sounds like an educational project which you should really solve yourself.

HOWEVER

The attached pictures - click for full size - show 2 ways to detect weight and movement.

The rest is up to you.

In addition you could look at accelerometers, magnetic switches, Think about what changes when a person sits in the seat.

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user
edcrobot (author)rickharris2017-06-27

Its just a personal project not an educational one, and thank you for your reply, its very helpful :)

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user
rickharris (author)edcrobot2017-06-27

Ok, we do get a LOt of homework here. Now you have something to think about :-)

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