How to generate music with PWM?

RE: How to generate music with PWM?

Jared — Wed, 29 Apr 2020 09:12:22 GMT

Hi,

The thingy 52 shows how to produce sound from the nRF52. You can find the FW and the HW files for the platform here.

regards

Jared

RE: How to generate music with PWM?

awneil — Wed, 29 Apr 2020 09:04:14 GMT

again, you are one asking for free help!

don't expect people to have to google the stuff in your question just to find out what you're talking about.

RE: How to generate music with PWM?

Jxq — Wed, 29 Apr 2020 08:41:35 GMT

Can you please copy and paste and google?

RE: How to generate music with PWM?

awneil — Tue, 28 Apr 2020 07:45:37 GMT

[quote userid="88640" url="~/f/nordic-q-a/60781/how-to-generate-music-with-pwm/246985"]The part no. of piezo driver is PAM8904[/quote]

Go on - give a link!

You're the one asking for free help - make it easy for people to help you...

RE: How to generate music with PWM?

Jxq — Tue, 28 Apr 2020 07:43:42 GMT

Hi Awneil,

Thanks for your reply.

I believe I've already got the theory behind the PWM and waveform.

Yes, I have questions about how to configure a music unit in an nRF52840.

The part no. of piezo driver is PAM8904. Sorry for the confusion, what I need is not a song or a music, it's more like a tune or a sound.

RE: How to generate music with PWM?

awneil — Tue, 28 Apr 2020 07:25:47 GMT

Are you asking about the general principles of how PWM can be used to synthesise a waveform, or just the specific details of how to configure the PWM unit in an nRF52840 ?

Obviously, you will need to understand the former before moving on to the latter.

https://www.google.com/search?q=pwm+audio

[quote userid="88640" url="~/f/nordic-q-a/60781/how-to-generate-music-with-pwm"]a piezo driver [/quote]

What, exactly, do you mean by that?

Give a part number and/or link to the product.

Note that many cheap piezo sounders are resonant and will not reproduce a wide range of frequencies - so they are not suitable for music.