PIR box for small detection angles.
The Fresnel lens is not used, instead a tube is sticked to the sensor.
Naturally you can customize the box also for the Fresnel lens.
V1.1 released: Potentiometer hole algorithm modified. The value of the variable 'PotentiometerHoleOffsetZ' is now measured from the lens side of the box.
In this example the tube is made of a shrinking tube.
All parts have to be sticked or shrinked.
Be careful to align the tube orthogonally to the lens. Check also the othogonal alignment of the electronics in the box.Note: The longer the tube the smaller the angle.
The length of the tube in the photo is approx. 4.5cm.