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Offline topwallyTopic starter
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« on: September 24, 2014, 09:12:43 am »
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 Hello, Could a fellow member recommend a suitable  piezo electric buzzer ,   to connect to a SM PRO PI METAL DETECTOR BOARD. Regards Detecting

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Offline GoldDigger1950
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« Reply #1 on: September 24, 2014, 11:19:48 am »
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Any one at all will work.

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It's all about that moment when metal that hasn't seen the light of day for generations frees itself from the soil and presents itself to me.
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« Reply #2 on: September 24, 2014, 02:25:51 pm »
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Quote:Posted by topwally
Hello, Could a fellow member recommend a suitable  piezo electric buzzer ,   to connect to a SM PRO PI METAL DETECTOR BOARD. Regards Detecting


There are 2 kinds of buzzers. You need to know 2 things. What voltage is used to power it, and if it requires a square wave to drive it or does it require just d.c. I am not sure which one that board requires. Radio Shack has both kinds.

Carl

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A bad day at gold prospecting or metal detecting is better than a good day at work.

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« Reply #3 on: September 24, 2014, 06:06:33 pm »
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My bet is about anyone will work like GD said.   Some are better at lower Freaks. 


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Offline xavier
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« Reply #4 on: September 26, 2014, 07:45:57 am »
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Quote:Posted by golddustcarl
if it requires a square wave to drive it or does it require just d.c. I am not sure which one that board requires. Radio Shack has both kinds.

Carl

It's driven by a 555 if I recall so won't matter.

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So many questions so little time
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