Short-Range motion sensor Raspberry PI

[TheDutchMC04]

Hello,

I'm looking for a short-range motion sensor to connect to my raspberry pi, with a range of about 60 cm. I have searched the internet for 2 hours and I can't find it. Annyone suggestions?

Thanks.

[SCHISCHKA]

you cant use a cheap security sensor? they have a simple NC relay you can plug into the IO

[TheDutchMC04]

4 minutes ago, SCHISCHKA said:

you cant use a cheap security sensor? they have a simple NC relay you can plug into the IO

No, they have a range that is to big. The range should be aboutr 60 centimeter.

[dalekphalm]

1 hour ago, TobiZY said:

No, they have a range that is to big. The range should be aboutr 60 centimeter.

How wide do you need the field of view to be? You could pick up a photo-eye or proximity sensor with a 60-centimeter range for dirt cheap (a few bucks, max) - but it would pretty much be direct line-of-sight in a straight line (think, like tripping a laser beam).

 

You could of course construct an array of them fanning out at different angles, but it wouldn't be quite the same as a wide-angled motion sensor.

[TheDutchMC04]

1 minute ago, dalekphalm said:

How wide do you need the field of view to be? You could pick up a photo-eye or proximity sensor with a 60-centimeter range for dirt cheap (a few bucks, max) - but it would pretty much be direct line-of-sight in a straight line (think, like tripping a laser beam).

 

You could of course construct an array of them fanning out at different angles, but it wouldn't be quite the same as a wide-angled motion sensor.

It doesn't have to be wide. just a beam is enough.

[dalekphalm]

Just now, TobiZY said:

It doesn't have to be wide. just a beam is enough.

Then, as I said, a prox sensor or a photo eye would work:

Something like this:

 

https://www.automationdirect.com/adc/Overview/Catalog/Sensors_-z-_Encoders/Photoelectric_Sensors/12mm_Round_-_Metal

(This one has an adjustable 100mm or 300mm range, for example)

 

The data sheet listed will show the pin-out wiring diagram, but they're pretty simple, usually 3 or 4 wires. You can wire it up into something like a Pi using the IO board - just make sure it's getting the correct voltage.

 

You can find these kinds of things in automation shops, or on ebay. The problem is finding the exact right part. Finding a store that carries them may be the best route, since you can sometimes ask staff for some basic help sorting through the parts.

[TheDutchMC04]

I need something like this: https://www.sossolutions.nl/pir-infrared-motion-sensor-hc-sr501?fee=4&fep=277?utm_source=shopping&utm_medium=adwords&utm_term=PIR Infrared Motion Sensor (HC-SR501) &utm_campaign=shopping&gclid=Cj0KEQjwtu3GBRDY6ZLY1erL44EBEiQAAKIcvjrwGTmMaMw788f_ArzzmJ60lu3HRn744Z4CYPKUfD4aAqp68P8HAQ

 

Only the range has to be shorter (60 cm)

[SCHISCHKA]

9 hours ago, TobiZY said:

No, they have a range that is to big. The range should be aboutr 60 centimeter.

Put a lens on it