Audio using the nRF51822

[Mark Wagner]

Hi, I'm working on a project where I'm trying to make an nRF51822 play a basic sound (such as a beep). Is there a recommended DAC that should be used with this particular SoC? Does anyone know in general how to get the chip to play sound?

Also- I'm relatively new to projects like this so any tips you have are helpful.

[Håkon Alseth]

Hi Mark,

Have you seen this thread? devzone.nordicsemi.com/.../dac-for-use-with-nrf51822

Since you are going to play basic sounds, like beeps, you could use a timer to generate a PWM output.

Best regards Håkon

[Mark Wagner]

Thanks Hakon,

I didn't think of that before, but I think your solution is much better than the one I came up with

-Mark

[Marc Nicholas]

Do bear in mind that you'll be limited to clk/2 in terms of frequency (Nyquist's theorem).

But, unless you're a teenager, that shouldn't be a major problem :)

-m

[karan]

Hello Marc is there is any possible way to make a phone ring by pressign the button on the NRF51dk if so could you suggest me the ideas behind in it?