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Motion Detection

Potency · 2010-02-25 15:36:18

Hello, I've had an idea but I don't really know how to go about it. I have basic knowledge of electronics and circuits but the idea for this is to dive in head first and attempt to make something useful! I want to make a device that will detect motion (cars/people), send a signal wirelessly several meters to a receiver…

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25-02-2010 4:36pm

#1

Potency

Registered Users Posts: 104 ✭✭

Join Date: March 2008

Posts: 63

Hello,

I've had an idea but I don't really know how to go about it. I have basic knowledge of electronics and circuits but the idea for this is to dive in head first and attempt to make something useful!

I want to make a device that will detect motion (cars/people), send a signal wirelessly several meters to a receiver which will be connected to a buzzer or speaker and alert me to the motion. It has to go through brick wall into my house.

So my idea was to use either a PIR or ultrasonic motion sensor connected to maybe an AM transmitter? TBH, I don't know a lot about radio or wireless. Can anybody suggest how to send this signal inside to inside my house? Lets say radio would work, have the AM transmitter send a sound generated from an ic outside to a receiver inside which is connected to a speaker.

This is more of a learning experience for me, and I hope someone can fill in the blanks.. Or correct what I have already .

Thanks!

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