8-Channel 12-Bit ADC for Raspberry Pi sampling rate / Jitter

Products & Technology Grove
#1

Hello all,

I’ve got one of the 8 ch 12-bit ADC boards. And I’d like to use it for vibration analysis. I have mye acceleromters all connected and I read the values from the ADC just fine using a slightly modified version of the example-file https://github.com/Seeed-Studio/grove.py/blob/master/grove/adc_8chan_12bit.py

However, I’d like to have better control over the timing. How can I get the ADC to sample at a given sample-rate with a minimum of jitter? I.E. 100 Hz Or even better 44 kHz for audio? Is it even possible with this board?

Cheers
Bernie

#2

@bernienor
This is not possible. If you need to collect Audio, you need a professional Audio ADC.
eg:




1 Like
#3

Ok, so Audio is not possible.

But a consistent sampling rate? Ie 100 Hz?

As the board has mikrocontroller on it, it should be possible to set this up to sample at a given rate, and have a device driver to pull data from it to achive 100 Hz (or higher) sampling rate.

Is the source code for the mikrocontroller available?

Thanks for the links to the audio-boards. That solves part of the project.

Cheers!
Bernie

#4

the source code is not for the mikrocontroller