Very very faint sound

robotstuff

Just built the piezoelectric speaker cicuit in "Whats a Microcontroller"·p.22 figure 8-2 and ran the program. The program runs ok but i have to put the
homework board to my ear to hear the sounds. Is this normal?··How do i get more volume?······················································

Mightor

robotstuff said...
Just built the piezoelectric speaker cicuit in "Whats a Microcontroller" p.22 figure 8-2 and ran the program. The program runs ok but i have to put the
homework board to my ear to hear the sounds. Is this normal? How do i get more volume?

Robotstuff,

Are you sure you have the piezo the right way around? Btw, the page number featuring figure 8-2 is not 22, but 220 [noparse]:)[/noparse] I assume you tested it with TestPiezoWithFreqout.bs2?

' What's a Microcontroller - TestPiezoWithFreqout.bs2
' Send a tone to the piezo speaker using the FREQOUT command.
'{$STAMP BS2}
'{$PBASIC 2.5}
DEBUG "Tone sending...", CR
FREQOUT 9, 1500, 2000
DEBUG "Tone done."

Gr,
Mightor

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robotstuff

Thanks for your input.
I triple checked everything but no go.
I went and bought another piezo and it works fine!

Again thanks!!

Mightor

Robo,

Just another quick Q. You did take the little sticker off the top of the piezo? I know that I had one on mine when I got it with the Boe-Bot that said "remove after washing". That would really muffle the sound [noparse]:)[/noparse] It's a black little sticker with a small tab, not terribly easy to see.

Gr,
Mightor

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| To know recursion, you must first know recursion.