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'[OT] INSECT REPPELER - Was (Wacky designs with PIC'
1999\03\16@143630 by Wagner Lipnharski

picon face
Quentin wrote:
>
> This idea came to me as I am listing now to this damn randy cricket
> cricketing just outside my window: "Hmmm, I wonder what kind of
> electronic circuit can I design (PIC based, of course!) that will lock
> on to a cricket cricketing and ZAP! them with some kind of energy to
> evaporate them". Now I know, cricket sounds are all romantic and all
> that, but this time of the year the damn things are everywhere: my
> study, roof, window sills, bathroom and in every nook and cranny in my
> house. Hard to concentrate on my PICcing with this high pitch sound in
> my ears.
> Thinking of a design like this made me think of what other wacky designs
> and ideas people come up with PIC's. Might be getting slightly OT, but
> what the heck, beats all the crack, pirate and religion posts we've been
> having lately.
>
> Quentin

All animals and insects, living things have the same right to live, but,
for sure I would not allow a rattle snake to invade my home, and make a
hell of our life while poisoning my kids.

Knowledge show us that all living things are attracted by something, as
well repulsed by another things. All of this is normally caused by
sexual behavior.

Some insect repellent sprays for example, are based in some smell that
replicates the female hormones.  The mosquitos for example, "that pest",
is the female who attack and sucks blood, as far as I know, they need it
to the reproduction.  Females hates themselves, because the high
competitive world, well, I think all kinds.
The presence of an expressive "female smell", or what they use to mark
the territory, will make other females to get away, since "that
territory" is already dominated.

Some (questionable) insect repellers, use odor (smell), while other uses
high frequency pitch, that try to reproduce (note the "try" word) the
sound emitted by a female while hunting + sending the others away.  So,
emitting a powerful ultrasound will try to make those nasty little guys
going home, the swamps.

I have a high frequency pitch portable device, to repeal dogs and cats,
it uses a 20 or more kHz transducer and it may emit a powerful signal,
since I can make a dog or cat lift its hears from more than 60 meter
away. They stop, listen, turn around and just walk or run exactly in the
opposite direction, away from me, it is very interesting.  I think it
just "fry" their sensible earing system.

Probably if you do some research, you will find what makes the crickets
silencing, or move out, possible its natural predator, birds.   I always
read that the best way to combat insect in your home is install bird
feeding bottles around your house and trees, and attract birds, they
naturally clean your vicinity of spiders, moles, crickets, worms, and
some other roaches, nasty things.

So, perhaps you don't need to kill crickets, but feed birds.  Just use a
PIC to duplicate a bird sing or bird call, and probably they will do
their job, using their little brain as the hunting attack computer, much
more advanced than a PIC microchip.

... but if you go ahead and produce some cricket "search'n-destroy"
device, show me the project, I can make use of one here too... :)) hehe.

Wagner.

1999\03\16@152029 by Quentin

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face
You pretty much feel the same about unnecessary killing of insects as I
do. I hate using insect spray as I always wonder about all the other
insects it will kill (such as spiders, which does a good job here :) ).

I have lot's of birds in my gardens, but the crickets are all hiding or
there are too many of them. And, I would compare the crickets with dogs
following a bitch in season: there ain't no stopping them :).

But, yes, if an insect or animal is invading my space, I will take the
necessary steps, first repel, then go more drastic.

(Back on topic now) Maybe I should build something that will call all
the male crickets to the most remote corner of my garden. Anybody know
any female cricket calls?

And I still would hear about all other wacky designs that's out there.
Anything that's not "normal".

Quentin

1999\03\16@153858 by Howard McGinnis

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face
What about a small PIC with a piezo making noises like a boss cricket -
something that says "I'm bigger than you and will have you for dinner if
you don't leave my territory"? Could the piezo be monitored like a
microphone with a learned threshhold, then switched to transmit mode for
the big cricket message, then switched back to monitoring? Maybe a 12C508/9?

Howard McGinnis
spam_OUThmcginniTakeThisOuTspamdigital.net
Electronic Visions, Inc.
1650 Barrett Drive
Rockledge FL 32955
(407) 632-7530
http://ddi.digital.net/~hmcginni
.....mcginnisKILLspamspam@spam@e-visions.com

1999\03\16@161934 by Wagner Lipnharski

picon face
Howard McGinnis wrote:
>
> What about a small PIC with a piezo making noises like a boss cricket -
> something that says "I'm bigger than you and will have you for dinner if
> you don't leave my territory"? Could the piezo be monitored like a
> microphone with a learned threshhold, then switched to transmit mode for
> the big cricket message, then switched back to monitoring? Maybe a 12C508/9?

You mean, record the crickets noise and play it louderrrrrr???
He's trying to get rid of them, not getting crazy...... hehe
just kidding.
The idea is nice, since reproducing exactly the noise, the male or
female, I don't know, will ear a sound similar to its gender and
will go away. But the problem is that it would attract the opposite
gender... hehe... so you will get a heavy traffic in the backyard,
probably if you start to charge a small fee to enter in the club,
they will go away... :)
Wagner.

1999\03\16@173807 by Ermes Romero

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face
Hey guys,
                 If you want to get away some insects all that you have to
do is implement an oscillator circuit  of high frecuencies and probe with
insects using a piezoelectric of high frecuency. I do this with dogs and it
works!!!, the problem is find out the frecuencies that some insects get to
be confused and get away.

Be careful with other animals maybe some will get mad of hearing.

    Ermes

1999\03\16@174843 by Howard McGinnis

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face
>do is implement an oscillator circuit  of high frecuencies and probe with
>insects using a piezoelectric of high frecuency. I do this with dogs and it
>works!!!, the problem is find out the frecuencies that some insects get to
>be confused and get away.

There's where the PIC comes in - listen using the piezo - if it hears the
cricket frequencies, transmit starting with a low high frequency noise
burst, then listen and learn what the crickets don't like.

Howard
Howard McGinnis
hmcginnispamKILLspamdigital.net
Electronic Visions, Inc.
1650 Barrett Drive
Rockledge FL 32955
(407) 632-7530
http://ddi.digital.net/~hmcginni
.....mcginnisKILLspamspam.....e-visions.com

1999\03\16@182152 by Wagner Lipnharski

picon face
Hey, what makes the crickets enter in silence period?
When you got close to one, or make some noise or offer some
danger to the insect, is that right?
Now, why the other crickets in the vicinity also stop the
noise? if you are not offering any danger to them, they
are far away...
Because... the first one send a coded last cricketing
yell, before enter in silence period, that alerts the
other guys too, right?
This is very common in all animals behaviour, alert the
community for a possible danger.
So, using a good sound tape recorder, record the cricketing
sound and make them stop, stepping in the grass or something,
then pick just the last ckicketing recorded sound, it will
be the alert signal, just play it back when they are doing
the noisy festival and see the reaction.
If it works, just digitize it and program into a PIC flash
memory and "voila", you made millions, and please share some
UK millions with me... :)

Wagner.

1999\03\16@183233 by Mike Keitz

picon face
On Tue, 16 Mar 1999 18:46:26 -0400 Ermes Romero
<EraseMEeromerospam_OUTspamTakeThisOuTENTELSA.ENTELNET.BO> writes:
>Hey guys,
>                  If you want to get away some insects all that you
>have to
>do is implement an oscillator circuit  of high frecuencies and probe
>with
>insects using a piezoelectric of high frecuency. I do this with dogs
>and it
>works!!!, the problem is find out the frecuencies that some insects
>get to
>be confused and get away.

Lots of devices are sold on this principle, even though it doesn't work.
Insects are rather deaf.

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1999\03\16@184026 by g.daniel.invent.design

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Mike Keitz wrote:
<cut>
> Lots of devices are sold on this principle, even though it doesn't work.
> Insects are rather deaf.

A---Hem !

Crickets and Cicadas are just talking to human animals then ?

Be careful of gross generalisations.

1999\03\16@184648 by Sean Breheny

face picon face
At 12:25 PM 3/17/99 +1300, you wrote:
>Mike Keitz wrote:
><cut>
>> Lots of devices are sold on this principle, even though it doesn't work.
>> Insects are rather deaf.
>
>A---Hem !
>
>Crickets and Cicadas are just talking to human animals then ?
>
>Be careful of gross generalisations.
>

Actually,though,I wonder if they are HEARING it through the air or FEELING
it thru the ground? This could partially explain why some of the gadgets
which have speakers(piezo tweeters,etc.) on them to produce high pitched
sounds don't work well,perhaps they need to introduce more of the sound
into the ground. AFAIK,these noisemaking insects only make their noise
while stationary on the ground,not while flying.

Another possibility is that only one gender makes the noise and only the
other gender can hear it! This could also be a problem,for obvious reasons!


I'm not a biology expert,just wondering.

Sean


|
| Sean Breheny
| Amateur Radio Callsign: KA3YXM
| Electrical Engineering Student
\--------------=----------------
Save lives, please look at http://www.all.org
Personal page: http://www.people.cornell.edu/pages/shb7
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1999\03\17@035114 by g.daniel.invent.design

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Sean Breheny wrote:

This raises the question of how they zero in on a mate's position, if
they can't hear via air soundwaves.

{Quote hidden}

--
Steam engines may be out of fashion, but when you consider that an
internal combustion engine would require recovery of waste heat by
transfer just before top dead centre then fashion becomes rather
redundant, USE STRATIFIED HEAT EXCHANGERS ! and external combustion.

You heard it first from: Graham Daniel, managing director of Electronic
Product Enhancements.
Phone NZ 04 387 4347, Fax NZ 04 3874348, Cellular NZ 021 954 196.

1999\03\21@005957 by Glen

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Wagner Lipnharski wrote:

> Howard McGinnis wrote:
> >
> > What about a small PIC with a piezo making noises like a boss cricket -
> > something that says "I'm bigger than you and will have you for dinner if
> > you don't leave my territory"? Could the piezo be monitored like a
> > microphone with a learned threshhold, then switched to transmit mode for
> > the big cricket message, then switched back to monitoring? Maybe a 12C508/9?
>
> You mean, record the crickets noise and play it louderrrrrr???
> He's trying to get rid of them, not getting crazy...... hehe
> just kidding.
> The idea is nice, since reproducing exactly the noise, the male or
> female, I don't know, will ear a sound similar to its gender and
> will go away. But the problem is that it would attract the opposite
> gender... hehe... so you will get a heavy traffic in the backyard,
> probably if you start to charge a small fee to enter in the club,
> they will go away... :)
> Wagner.

have a female caller in one corner of the land & a male in the other corner !
sound proof to direct sound back into the midlle of landsurround each with fine
wire grid of high voltage.

suitable safety protecion around each grid.
glen !

1999\03\21@010823 by Glen

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Wagner Lipnharski wrote:

> Howard McGinnis wrote:
> >
> > What about a small PIC with a piezo making noises like a boss cricket -
> > something that says "I'm bigger than you and will have you for dinner if
> > you don't leave my territory"? Could the piezo be monitored like a
> > microphone with a learned threshhold, then switched to transmit mode for
> > the big cricket message, then switched back to monitoring? Maybe a 12C508/9?
>
> You mean, record the crickets noise and play it louderrrrrr???
> He's trying to get rid of them, not getting crazy...... hehe
> just kidding.
> The idea is nice, since reproducing exactly the noise, the male or
> female, I don't know, will ear a sound similar to its gender and
> will go away. But the problem is that it would attract the opposite
> gender... hehe... so you will get a heavy traffic in the backyard,
> probably if you start to charge a small fee to enter in the club,
> they will go away... :)
> Wagner.

put a female caller in one corner of the property & a male in the other.
sound proof to direct cals back into the land.
surround each with a wire / mesh grid  (high voltage )
safety precautions for wire grid.
glen !

if worst comes to the worst mount them in some nearby trees

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