Programmer Needed PIC12f683

[wired4au]

Thanks dougy83 i would defently be willing to donate to charity if thats what you want, I just need to confirm with you what your code is doing so i can be sure it is applicable to my project.

Ill try and explain what is i need ,

First i need to generate a loud tone the oscilates at 500Hz and at a freq of 2.3kHz, I would also require you to explain to me how to adjust these frequency's, It must be on a timer so that the battery pack can last a few days, I have the hardware made and ready to go i also have a programmer and pic12f683 ready to go.

I appreciate your help immensely and cant wait to here back from you.

Kind Regards

 

[dougy83]

You have specified 2 frequencies: 500 & 2300Hz. Are these to be emitted at the same time, is one to modulate the other, or differently?

Please post a drawing of the waveform you're after (or explain it better).

Also, you've mentioned that the thing runs on a battery pack. What is the capacity and voltage. Also, what sort of speaker are you using. This info is required to work out the current consumption of the device and consequent working life.

 

[wired4au]

Battery pack consits 4 AA bateries and the speaker will be 8Ω 0.5w,
Im working on recording the sound so i can figure out the exact frequencies required cheers.

 

[dougy83]

You may need a large battery pack for it to last any decent length of time.

e.g. if you're using a 2A.Hr 4.5V pack, driving an 8ohm speaker using a squarewave (50% on/off timing for 0.6W output power) for 5 seconds with a 30 second break, the lifetime will be in the order of 49Hrs.

To increase the battery lifetime you may:
* Decrease the output power (reduce the tone duty cycle to < 50%)
* Decrease time the tone is on
* Increase time the tone is off
* Increase battery size.

I would also suggest changing the configuration of your speaker driver from emitter-follower to common-emitter to increase the output power for a given current. It will only require 1 extra resistor for this.

 

[wired4au]

This attachment is excatly what im trying to achieve .

Thanks for your insight dougy much appreciated i will test out the design onsight and definitely consider a larger battery pack.

 

[dougy83]

That recording sounds a bit more complex than a single 2300Hz tone. The dominant frequency is more like 3kHz. I don't think you'll be happy with a constant beep.

Those calls are more like 0.33seconds each, which will greatly increase the battery life.

It might be possible to digitise the recording to output something a little closer. I'll have a think about it.

Also, is there any driver for your choice of components?

You realise that fox callers can be bought for around US$30, right?

 

[wired4au]

That recording sounds a bit more complex than a single 2300Hz tone. The dominant frequency is more like 3kHz. I don't think you'll be happy with a constant beep.

Those calls are more like 0.33seconds each, which will greatly increase the battery life.

It might be possible to digitise the recording to output something a little closer. I'll have a think about it.

Also, is there any driver for your choice of components?

You realise that fox callers can be bought for around US$30, right?

The unit must be compact, Also i will be producing 400 of these units most of which will be disposed of.
400 units @ 30 usd will not be viable when the components to make these units will be $11 Au each plus programming expensises, If you could replicate the sound provided great.
Look forward to your response.

 

[dougy83]

A had a go at digitising the signal, have a listen to the attached wav file. The first sound is the original, in 16 bits, while the rest are differently encoded into 1 bit. Choose one for your device.

The recordings are:
y 'original right channel
yzc ' zero-crossing
yzcd ' zero-crossing of dy/dt
yzci ' zero-crossing of integral(y)
yds01 ' delta-sigma, step size = 0.01
yds02
yds03
yds04
yds05
yds06
yds07
yds08
yds09
yds10
yds15
yds20
yds25
yds30
yds35
yds40
yds45

 

[dougy83]

I know the tone code is of no use for this project, but as I've already written it, perhaps someone can make use of it. It produces a runtime-setable tone on the CCP1 pin.

 

[wired4au]

A had a go at digitising the signal, have a listen to the attached wav file. The first sound is the original, in 16 bits, while the rest are differently encoded into 1 bit. Choose one for your device.

The recordings are:
y 'original right channel
yzc ' zero-crossing
yzcd ' zero-crossing of dy/dt
yzci ' zero-crossing of integral(y)
yds01 ' delta-sigma, step size = 0.01
yds02
yds03
yds04
yds05
yds06
yds07
yds08
yds09
yds10
yds15
yds20
yds25
yds30
yds35
yds40
yds45

Sorry dougy83 i need you to explain to my noobie ears whats going on here is this going to produce just the one tone or can we use all of them.

Thx

Just looked at code you are a true genuis my freind.

 

[dougy83]

Sorry dougy83 i need you to explain to my noobie ears whats going on here is this going to produce just the one tone or can we use all of them.

I just posted that wav file so that you could choose a single chirp/squark out of the 20 in the wav. You can't choose the first chirp, as it's the original in 16-bits (for comparison).

Just looked at code you are a true genuis my freind.

That code will only produce the single tone that you first requested. I haven't posted the code to play back the recording yet.

 

[wired4au]

I just posted that wav file so that you could choose a single chirp/squark out of the 20 in the wav. You can't choose the first chirp, as it's the original in 16-bits (for comparison).

That code will only produce the single tone that you first requested. I haven't posted the code to play back the recording yet.

Sorry are we going back to a single chirp or a we trying to duplicate the Rabbit in duress sound file i uploaded.
From what i understand there are multiple tones being generated in that sound file or is it one tone with a different sound waves ? "Sorry if i sound stupid"

I understand that is the first code i asked for i still think your a genius for writting that in such short amount of time

 

[dougy83]

Sorry are we going back to a single chirp or a we trying to duplicate the Rabbit in duress sound file i uploaded.

That was a rabbit? I assumed it was a bird. Anyway, the wave file I uploaded is a single chirp encoded multiple times using different parameters. Some sound good & some sound crap. I was just asking for you to choose the one that sounded best to you.

From what i understand there are multiple tones being generated in that sound file or is it one tone with a different sound waves ? "Sorry if i sound stupid"

It's the first chirp from the recording you posted, but encoded 20 or so times.

I understand that is the first code i asked for i still think your a genius for writting that in such short amount of time

yeah, I get that a lot

I wrote the code to play back the digitised sample in a similar time - with that one I didn't have to learn how to use the pic12f683 PWM module.

 

[bryan1]

It's good to see fellow Ozzie's in this post anyway about once a month I hold a fox shooting on my farm and the only thing we use is a fox whistle, in the last 3 years we got 26 fox's and with that the young lamb slaughter by fox's has declined to near nothing. Besides afterwards it always a good time with the bonfire and a few beers so why take the fun away by trying to use an electronic device. For me the true Oz spirit will never die.......

Cheers Bryan

 

[wired4au]

It's good to see fellow Ozzie's in this post anyway about once a month I hold a fox shooting on my farm and the only thing we use is a fox whistle, in the last 3 years we got 26 fox's and with that the young lamb slaughter by fox's has declined to near nothing. Besides afterwards it always a good time with the bonfire and a few beers so why take the fun away by trying to use an electronic device. For me the true Oz spirit will never die.......

Cheers Bryan

The devices will not be used for recreational hunting, We specialise in the capture and control of these pests.

 

[wired4au]

dougy83
Im strugling to pick one of those tones but lets try tone 9 (not counting first tone)

Thx

 

[Pommie]

I'm with Bryan, best way to control them is to "put them to sleep humanely".

Mike.

 

[dougy83]

I'm with Bryan, best way to control them is to "put them to sleep humanely".

...by shooting them to pieces...

Maybe you should get fox meat into the mainstream market the same way as they have for kangaroo meat. We could probably get rid of the need for so many cattle and sheep if you culled/processed the feral animals around here. Foxes, rabbits/hares, cats, possums, koalas, drop bears...

Im strugling to pick one of those tones but lets try tone 9 (not counting first tone)

OK. I'll try to post the code after I get home tonight.

 

[dougy83]

Code attached. All the best. I hope it works.

 

[wired4au]

Code attached. All the best. I hope it works.

You are a legend it works perfectly. We need to discuss payment and one more little favor can you suggest how to make it a little bit louder .

Im stoked