First tests with the Microwave Radar Movement Sensor RCWL-0516...

J

Jan Panteltje

Guest
First tests with the Microwave Radar Movement Sensor RCWL-0516
that thing is really sensitive over several meters distance!

Bought it here:
https://www.tinytronics.nl/shop/en/sensors/motion/microwave-movement-sensor-rcwl-0516

https://github.com/jdesbonnet/RCWL-0516

Seems highly omnidirectional
 
Jan Panteltje wrote:
David Eather wrote:
Jan Panteltje wrote:
First tests with the Microwave Radar Movement Sensor RCWL-0516
that thing is really sensitive over several meters distance!

Bought it here:
https://www.tinytronics.nl/shop/en/sensors/motion/microwave-movement-sensor-rcwl-0516

https://github.com/jdesbonnet/RCWL-0516

Seems highly omnidirectional

that is really cheap (as in inexpensive)! :O

I put one in a glass honey jar (without the honey)
and it works just as well through glass.
So this can replace the doorbell as it will trigger when anybody comes
up to the door.
Click to expand...

FWIW, this guy\'s a combo PIR+Microwave Detector:

https://www.ebay.com/itm/255316056778

Somehow the dual sensor synthesis supposedly makes it pet-proof (or at
least cat-proof).

Danke,

--
Don, KB7RPU, https://www.qsl.net/kb7rpu
There was a young lady named Bright Whose speed was far faster than light;
She set out one day In a relative way And returned on the previous night.
 
On a sunny day (Sat, 12 Feb 2022 18:08:09 -0000 (UTC)) it happened \"Don\"
<g@crcomp.net> wrote in <20220212a@crcomp.net>:

Jan Panteltje wrote:
David Eather wrote:
Jan Panteltje wrote:
First tests with the Microwave Radar Movement Sensor RCWL-0516
that thing is really sensitive over several meters distance!

Bought it here:
https://www.tinytronics.nl/shop/en/sensors/motion/microwave-movement-sensor-rcwl-0516

https://github.com/jdesbonnet/RCWL-0516

Seems highly omnidirectional

that is really cheap (as in inexpensive)! :O

I put one in a glass honey jar (without the honey)
and it works just as well through glass.
So this can replace the doorbell as it will trigger when anybody comes
up to the door.

FWIW, this guy\'s a combo PIR+Microwave Detector:

https://www.ebay.com/itm/255316056778

Somehow the dual sensor synthesis supposedly makes it pet-proof (or at
least cat-proof).

Danke,
Click to expand...

Good point, I do not have a cat, but he one from the neighbors often sleeps
in front of the door and sometimes watches me with big eyes through the glass...

I tried to make this Doppler sensor directional by wrapping the glass jar in alu-foil
(as in alu-foil hat) but it is still omni-directional and extremely sensitive:
http://panteltje.com/pub/wrapped_RF_doppler_motion_sensor_IXIMG_0797.JPG

Maybe also from the wires to the lab supply, so next is with battery in jar
and if that does not work make a cantenna:
https://en.wikipedia.org/wiki/Cantenna
outgoing wires decoupled with caps....

For a PIR I need to drill a hole, the idea was just to avoid that with this thing.
I have a big PIR sensor from the old house.
 
On 15/02/2022 14:50, wmartin wrote:
On 2/14/22 07:08, Phil Hobbs wrote:
wmartin wrote:
On 2/12/22 22:25, bitrex wrote:
On 2/12/22 13:08, Don wrote:
Jan Panteltje wrote:
David Eather wrote:
Jan Panteltje wrote:
First tests with the Microwave Radar Movement Sensor RCWL-0516
   that thing is really sensitive over several meters distance!

Bought it here:
https://www.tinytronics.nl/shop/en/sensors/motion/microwave-movement-sensor-rcwl-0516


   https://github.com/jdesbonnet/RCWL-0516

Seems highly omnidirectional

that is really cheap (as in inexpensive)!  :O

I put one in a glass honey jar (without the honey)
and it works just as well through glass.
So this can replace the doorbell as it will trigger when anybody
comes
up to the door.

FWIW, this guy\'s a combo PIR+Microwave Detector:

https://www.ebay.com/itm/255316056778

Somehow the dual sensor synthesis supposedly makes it pet-proof (or at
least cat-proof).

Danke,


I remember reading a story somewhere about how a cat-door was made
virtually cat-proof to interloper cats just by adding a time delay
to the detector.

The cats who lived there would simply jump thru the door, since they
lived there. Other neighborhood cats would hesitate at the the
threshold to inspect, setting off the alarm
Hah, I wish that would work for me, but I doubt it. There is one
neighbor cat in particular,a young male, solid black color, that has
earned the moniker \"Lucas\" as in \"Prince of Darkness\" :) This
critter is so ballsy that he will walk right into my house in search
of my cat\'s food...


Invest in a Super Soaker. ;)

Cheers

Phil Hobbs
Well, sure, except he doesn\'t come in if I\'m there...he knows better, he
will get chased. My old cat gets really brave too if I\'m there for
backup! Cat door with an rfid chip reader? If it didn\'t cost a fortune,
I might do that :)
Click to expand...

https://www.youtube.com/watch?v=uIbkLjjlMV8
 
On 2/12/22 13:08, Don wrote:
Jan Panteltje wrote:
David Eather wrote:
Jan Panteltje wrote:
First tests with the Microwave Radar Movement Sensor RCWL-0516
that thing is really sensitive over several meters distance!

Bought it here:
https://www.tinytronics.nl/shop/en/sensors/motion/microwave-movement-sensor-rcwl-0516

https://github.com/jdesbonnet/RCWL-0516

Seems highly omnidirectional

that is really cheap (as in inexpensive)! :O

I put one in a glass honey jar (without the honey)
and it works just as well through glass.
So this can replace the doorbell as it will trigger when anybody comes
up to the door.

FWIW, this guy\'s a combo PIR+Microwave Detector:

https://www.ebay.com/itm/255316056778

Somehow the dual sensor synthesis supposedly makes it pet-proof (or at
least cat-proof).

Danke,
Click to expand...

I remember reading a story somewhere about how a cat-door was made
virtually cat-proof to interloper cats just by adding a time delay to
the detector.

The cats who lived there would simply jump thru the door, since they
lived there. Other neighborhood cats would hesitate at the the threshold
to inspect, setting off the alarm
 
On 2/15/22 03:36, Chris Jones wrote:
On 15/02/2022 14:50, wmartin wrote:
On 2/14/22 07:08, Phil Hobbs wrote:
wmartin wrote:
On 2/12/22 22:25, bitrex wrote:
On 2/12/22 13:08, Don wrote:
Jan Panteltje wrote:
David Eather wrote:
Jan Panteltje wrote:
First tests with the Microwave Radar Movement Sensor RCWL-0516
   that thing is really sensitive over several meters distance!

Bought it here:
https://www.tinytronics.nl/shop/en/sensors/motion/microwave-movement-sensor-rcwl-0516


   https://github.com/jdesbonnet/RCWL-0516

Seems highly omnidirectional

that is really cheap (as in inexpensive)!  :O

I put one in a glass honey jar (without the honey)
and it works just as well through glass.
So this can replace the doorbell as it will trigger when anybody
comes
up to the door.

FWIW, this guy\'s a combo PIR+Microwave Detector:

https://www.ebay.com/itm/255316056778

Somehow the dual sensor synthesis supposedly makes it pet-proof
(or at
least cat-proof).

Danke,


I remember reading a story somewhere about how a cat-door was made
virtually cat-proof to interloper cats just by adding a time delay
to the detector.

The cats who lived there would simply jump thru the door, since
they lived there. Other neighborhood cats would hesitate at the the
threshold to inspect, setting off the alarm
Hah, I wish that would work for me, but I doubt it. There is one
neighbor cat in particular,a young male, solid black color, that has
earned the moniker \"Lucas\" as in \"Prince of Darkness\" :) This
critter is so ballsy that he will walk right into my house in search
of my cat\'s food...


Invest in a Super Soaker. ;)

Cheers

Phil Hobbs
Well, sure, except he doesn\'t come in if I\'m there...he knows better,
he will get chased. My old cat gets really brave too if I\'m there for
backup! Cat door with an rfid chip reader? If it didn\'t cost a
fortune, I might do that :)



https://www.youtube.com/watch?v=uIbkLjjlMV8
Click to expand...
hmm, ideas, ideas & more ideas! :) All of this is great, but I need
selective terror tactics, not universal...
 
On 10/02/2022 8:02 pm, Jan Panteltje wrote:
First tests with the Microwave Radar Movement Sensor RCWL-0516
that thing is really sensitive over several meters distance!

Bought it here:
https://www.tinytronics.nl/shop/en/sensors/motion/microwave-movement-sensor-rcwl-0516

https://github.com/jdesbonnet/RCWL-0516

Seems highly omnidirectional
Click to expand...
that is really cheap (as in inexpensive)! :O
 
On a sunny day (Fri, 11 Feb 2022 13:43:45 +1000) it happened David Eather
<eatREMOVEher@tpg.com.au> wrote in
<16d29e73351a362b$1$3266748$c2465acb@news.newsdemon.com>:

On 10/02/2022 8:02 pm, Jan Panteltje wrote:
First tests with the Microwave Radar Movement Sensor RCWL-0516
that thing is really sensitive over several meters distance!

Bought it here:
https://www.tinytronics.nl/shop/en/sensors/motion/microwave-movement-sensor-rcwl-0516

https://github.com/jdesbonnet/RCWL-0516

Seems highly omnidirectional

that is really cheap (as in inexpensive)! :O
Click to expand...

I put one in a glass honey jar (without the honey)
and it works just as well through glass.
So this can replace the doorbell as it will trigger when anybody comes up to the door.
 
On 2/12/22 22:25, bitrex wrote:
On 2/12/22 13:08, Don wrote:
Jan Panteltje wrote:
David Eather wrote:
Jan Panteltje wrote:
First tests with the Microwave Radar Movement Sensor RCWL-0516
   that thing is really sensitive over several meters distance!

Bought it here:

https://www.tinytronics.nl/shop/en/sensors/motion/microwave-movement-sensor-rcwl-0516


   https://github.com/jdesbonnet/RCWL-0516

Seems highly omnidirectional

that is really cheap (as in inexpensive)!  :O

I put one in a glass honey jar (without the honey)
and it works just as well through glass.
So this can replace the doorbell as it will trigger when anybody comes
up to the door.

FWIW, this guy\'s a combo PIR+Microwave Detector:

https://www.ebay.com/itm/255316056778

Somehow the dual sensor synthesis supposedly makes it pet-proof (or at
least cat-proof).

Danke,


I remember reading a story somewhere about how a cat-door was made
virtually cat-proof to interloper cats just by adding a time delay to
the detector.

The cats who lived there would simply jump thru the door, since they
lived there. Other neighborhood cats would hesitate at the the threshold
to inspect, setting off the alarm
Click to expand...
Hah, I wish that would work for me, but I doubt it. There is one
neighbor cat in particular,a young male, solid black color, that has
earned the moniker \"Lucas\" as in \"Prince of Darkness\" :) This critter
is so ballsy that he will walk right into my house in search of my cat\'s
food...
 
wmartin wrote:
On 2/12/22 22:25, bitrex wrote:
On 2/12/22 13:08, Don wrote:
Jan Panteltje wrote:
David Eather wrote:
Jan Panteltje wrote:
First tests with the Microwave Radar Movement Sensor RCWL-0516
   that thing is really sensitive over several meters distance!

Bought it here:
https://www.tinytronics.nl/shop/en/sensors/motion/microwave-movement-sensor-rcwl-0516


   https://github.com/jdesbonnet/RCWL-0516

Seems highly omnidirectional

that is really cheap (as in inexpensive)!  :O

I put one in a glass honey jar (without the honey)
and it works just as well through glass.
So this can replace the doorbell as it will trigger when anybody comes
up to the door.

FWIW, this guy\'s a combo PIR+Microwave Detector:

https://www.ebay.com/itm/255316056778

Somehow the dual sensor synthesis supposedly makes it pet-proof (or at
least cat-proof).

Danke,


I remember reading a story somewhere about how a cat-door was made
virtually cat-proof to interloper cats just by adding a time delay to
the detector.

The cats who lived there would simply jump thru the door, since they
lived there. Other neighborhood cats would hesitate at the the
threshold to inspect, setting off the alarm
Hah, I wish that would work for me, but I doubt it. There is one
neighbor cat in particular,a young male, solid black color, that has
earned the moniker \"Lucas\" as in \"Prince of Darkness\" :) This critter
is so ballsy that he will walk right into my house in search of my cat\'s
food...
Click to expand...

Invest in a Super Soaker. ;)

Cheers

Phil Hobbs
 
On 2/13/2022 10:14 PM, wmartin wrote:
On 2/12/22 22:25, bitrex wrote:
On 2/12/22 13:08, Don wrote:
Jan Panteltje wrote:
David Eather wrote:
Jan Panteltje wrote:
First tests with the Microwave Radar Movement Sensor RCWL-0516
   that thing is really sensitive over several meters distance!

Bought it here:
https://www.tinytronics.nl/shop/en/sensors/motion/microwave-movement-sensor-rcwl-0516


   https://github.com/jdesbonnet/RCWL-0516

Seems highly omnidirectional

that is really cheap (as in inexpensive)!  :O

I put one in a glass honey jar (without the honey)
and it works just as well through glass.
So this can replace the doorbell as it will trigger when anybody comes
up to the door.

FWIW, this guy\'s a combo PIR+Microwave Detector:

https://www.ebay.com/itm/255316056778

Somehow the dual sensor synthesis supposedly makes it pet-proof (or at
least cat-proof).

Danke,


I remember reading a story somewhere about how a cat-door was made
virtually cat-proof to interloper cats just by adding a time delay to
the detector.

The cats who lived there would simply jump thru the door, since they
lived there. Other neighborhood cats would hesitate at the the
threshold to inspect, setting off the alarm
Hah, I wish that would work for me, but I doubt it. There is one
neighbor cat in particular,a young male, solid black color, that has
earned the moniker \"Lucas\" as in \"Prince of Darkness\" :) This critter
is so ballsy that he will walk right into my house in search of my cat\'s
food...
Click to expand...

Well he already knows how to get away with the crime!

But I think an unfamiliar cat just jumping through a door into an
unfamiliar place violates a deep instinct in a cat, though I\'m sure many
are smart enough to figure out the trick and override that instinct if
the cat worked at it.

Randomize the time delay and it might take one a while, though.
 
On 2/14/22 07:08, Phil Hobbs wrote:
wmartin wrote:
On 2/12/22 22:25, bitrex wrote:
On 2/12/22 13:08, Don wrote:
Jan Panteltje wrote:
David Eather wrote:
Jan Panteltje wrote:
First tests with the Microwave Radar Movement Sensor RCWL-0516
   that thing is really sensitive over several meters distance!

Bought it here:
https://www.tinytronics.nl/shop/en/sensors/motion/microwave-movement-sensor-rcwl-0516


   https://github.com/jdesbonnet/RCWL-0516

Seems highly omnidirectional

that is really cheap (as in inexpensive)!  :O

I put one in a glass honey jar (without the honey)
and it works just as well through glass.
So this can replace the doorbell as it will trigger when anybody comes
up to the door.

FWIW, this guy\'s a combo PIR+Microwave Detector:

https://www.ebay.com/itm/255316056778

Somehow the dual sensor synthesis supposedly makes it pet-proof (or at
least cat-proof).

Danke,


I remember reading a story somewhere about how a cat-door was made
virtually cat-proof to interloper cats just by adding a time delay to
the detector.

The cats who lived there would simply jump thru the door, since they
lived there. Other neighborhood cats would hesitate at the the
threshold to inspect, setting off the alarm
Hah, I wish that would work for me, but I doubt it. There is one
neighbor cat in particular,a young male, solid black color, that has
earned the moniker \"Lucas\" as in \"Prince of Darkness\" :) This critter
is so ballsy that he will walk right into my house in search of my
cat\'s food...


Invest in a Super Soaker. ;)

Cheers

Phil Hobbs
Click to expand...
Well, sure, except he doesn\'t come in if I\'m there...he knows better, he
will get chased. My old cat gets really brave too if I\'m there for
backup! Cat door with an rfid chip reader? If it didn\'t cost a fortune,
I might do that :)
 
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