Buzzer on ESP8266 (NodeMCU Amica)

[espruino-discuss]

Posted at 2017-08-13 by Hansi

Hello,

Does anyone have working examples with passive buzzer?
Because when I try this:

analogWrite(A0, 0.5, { freq: 1000 } );

I have such message:

>Uncaught ReferenceError: "A0" is not defined
 at line 1 col 13
analogWrite(A0, 0.5, { freq: 1000 } );

I've also tried digital pins, but no sound in result(and no error).

Could anyone show working example? (https://www.espruino.com/Making+Music doesn't work for me)

Thanks

[espruino-discuss]

Posted at 2017-08-13 by @MaBecker

A0 is the analog input. Use a D pin like NodeMCU.D3, but do not expect to much, because pwm is poor on ESP8266 - check #914

Make sure you not blow it by draining to much current from a Pin, max is 12 mA.

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Posted at 2017-08-15 by Hansi

Thanks, it helps) now need some time to pick some normal melody)

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Posted at 2017-11-15 by user83259

[SPAM]

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Posted at 2017-11-15 by DrAzzy

What does that have to do with Espruino? That looks like arduino C.

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Posted at 2017-11-16 by @gfwilliams

deleted - looks like spam to me (in the code comments)...