Audio Frequency Counter

[Archangel]

but I get jumping figures at high speed.

Hi charudatt,
Here is an Idea to help with the jitters, after the LCDOUT, save tobedisplay var to a dummy var, and then before updating the display check to see if tobedisplay = dummy and if it does, go back to the loop until it changes.
Also, what's that about?

goto DisplayRefresh
    goto DisplayRefresh
    goto DisplayRefresh
    goto DisplayRefresh
    goto DisplayRefresh
    goto DisplayRefresh

[charudatt]

I thought I got my bearing all messed up. My project is basically a Sound to Light idea (Disco light), and I thought , it was done by sampling the frequency and hence , I went about trying a Audio frequency meter.

There was a error in the code, I wanted to introduce a slight delay in the LCD routine and i put in those lines to goto DisplayRefresh, actually it should have been Gosub DisplayRefresh.

Anyway, any pointer / idea for disco lights using PIC.

Thanks all.

regards

[Archangel]

I built one (actually several) back around 1971 in high school electric shop, used an audio transformer secondary to speaker and primary to the gates of 3 SCRs through 3 R/C filters for 3 channel outputs to control 3 strings of colored lights put behind diffuser panels made for fluorescent lights. Wow shades, some Metal music, some get high, and who could even think of going to war ?
Back on topic . . . R/C network, Analog voltage detection, digital output . . . same theory should work.

[charudatt]

OK , did you mean this http://4.bp.blogspot.com/_BQac7gcHPK...1600/color.gif

Anyway , I got a lot of dope on this forum relating to this topic and shall give it a try.

Thank you for the help.

regards

[Archangel]

OK , did you mean this http://4.bp.blogspot.com/_BQac7gcHPK...1600/color.gif

Anyway , I got a lot of dope on this forum relating to this topic and shall give it a try.

Thank you for the help.

regards

http://4.bp.blogspot.com/_BQac7gcHPK...P-keI3U/s1600/
Yes, that was it.