sweep through a frequency

[Ken Sparkes]

Can you help me with the flow code to sweep through a frequency from 10kz to 50kz using the 12f615
Regards Ken

[Enamul]

Hi,
Can you please tell us bit more details of your project so that we can help you?

[Ken Sparkes]

Good Day Enamul I want to make a electronic water descaler as it is not know the exact frequency it works I want to sweep from 10Kz to 50Kz regards Ken

[medelec35]

I saw this post this morning:
http://www.dynapipe.co.uk/technical-info.htm
It gives the optimum frequency and frequency range.

Hope it helps

Martin

[Enamul]

Hi,
I hope your problem is sorted using Martin's post. If still not, you can try to make one using the following post of Martin which is although not upto the frequency you are looking for but I think can be modified for that..
http://www.matrixmultimedia.com/mmforum ... tor#p37525

[Ken Sparkes]

Thanks Martin that's a great help
Ken

[Ken Sparkes]

Good Day Martin I would still like help on the code to sweep from 7Kz to 17Kz with out the ADC as per the technical information on the Dyna web site.
Ken

[medelec35]

Hi Ken,

Thanks Martin that's a great help

Your welcome

I would still like help on the code to sweep from 7Kz to 17Kz with out the ADC as per the technical information on the Dyna web site.

yes I can help.
I have just started on a flowchart, that not only will sweep, but will also be modulated at 1Hz as per web site.
Will post later today if all goes well.

Martin

[medelec35]

Hi Ken,
Here is my first attempt.
Sweep frequency is from 7.88KHz to 16.96KHz
Pulsed at 1HZ
So frequency will sweep from 7.88KHz to 16.96KHz then back to 7.88KHz in one second.
Then no output for 1sec.
Then sweep from 7.88KHz to 16.96KHz then back to 7.88KHz etc.

Note: Output is from PWM = GP2

[Ken Sparkes]

Thanks again Martin that works great I will have one built and installed by tonight, I know these things are about 100 pounds in the UK but I live in Zimbabwe and there is nothing like that here. I will let you know how it works.
Regards
Ken

[medelec35]

Your welcome Ken.
Lets hope it does the job ok.
Don't know if this will be any help?
http://www.extremecircuits.net/2010/06/ ... er_17.html
Microcontroller will just replace 555 timers.