4 ms·
Funny you should link that! I have gotten as far as getting a raspberry pi zero to be a USB audio gadget, but I haven't played with the Pico yet. The raspi ze
by loxias 5y ago
Funny you should link that! I have gotten as far as getting a raspberry pi zero to be a USB audio gadget, but I haven't played with the Pico yet. The raspi zero has one i2s input and one i2s output.
> Pico itself can interface 29 microphones with no sweat.
I... had no idea. I thought that since it didn't have an i2s peripheral I was going to have to either find a micro that did, or do something bitbangy using SPI and perhaps an external buffer. I see that it might be possible to get a few I2S inputs using the PIOs. Thanks for this, will certainly give it a shot.
(though I don't see how you're getting 29 microphones :P "prove it" ;)
- rasz 5y ago30 GPIOs available to PIO state machines = 29 input pins from PDM MEMs microphones recorder at the same time.