PIR to the transistor_to LEDs

[eTech]

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.

 

[AMSolutions]

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.