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Circuit for motion detector hooked up to fan

Christy414

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I am new and am don this as a hobby. I am trying to make two motion sensors turn on a fan. One on each side. I don't want to use PIR because the objects might not give off heat. So any suggestions as to which motion detector to use. I am also using an arduiono. And should I use a relay switch? Attached is a diagram rough draft. Thank you for your time.20200709_230653.jpg
 

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Looks like you have specific PIR sensors, but we don't know the type nor the meaning of the connected cables.
Also what are the objects you want to detect?
 

Christy414

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Looks like you have specific PIR sensors, but we don't know the type nor the meaning of the connected cables.
Also what are the objects you want to detect?
Thank you for your reply. The design is based of this one on this website. https://www.gadgetronicx.com/motion-sensor-fan-circuit/
I just wanted to add another PIR. objects connected should be fan PWM , 12 volt, capacitor 10uF, 1K resistor, MOSFET transitor, and arduino
 

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