What is this sound

What is this sound

Postby LED » Sat Oct 06, 2018 10:47 am

When we dial phone there is sound of beep which change why this happen what is the name of it
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Re: What is this sound

Postby ric » Sat Oct 06, 2018 11:38 am

This has nothing to do with PIC programming.
Please, take inane questions somewhere else.
Latest test project, an LED matrix display made from one reel of addressable LEDs. here
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Re: What is this sound

Postby AussieSusan » Mon Oct 08, 2018 2:41 am

Look up DTMF
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