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PIR to the transistor_to LEDs

eTech

Well-Known Member
Update:

Power is supplied to PIR and Arduino by a USB charge cube.
However, the whole circuit could be operated from a 12V DC power supply, if desired, by using the Arduino DC power jack.
Opto provides some spike/noise protection.
An assumption is that the central system will consist of the PIR interface(s), Arduino, and LED driver. The PIR and LED modules will be some distance away.

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Last edited:

AMSolutions

New Member
The nomenclature seems to be toggled which is incorrect. If the input received has 5.0=Motion, then the output will also be 5.0=Motion. The output is taken from emitter & not from collector. Hence the status need not change.
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