ADC>DMA>array>signal processing

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Hello,
As very much a beginner at coding in general, I have encountered troubles with the DMA class of the rp2 library. In my current project I am looking to use dma to read from the adc, place it into an array and use the data for further signal processing (all on the pico w). I have yet to find a suitable example of such usage in general and was wondering if anyone could point me in the general direction of a possible solution.

[scruss]

jbentham's Pico examples are from before the rp2.DMA() library was released, but they still work. Take a look at the Pi Pico ADC input using DMA and MicroPython article and try the rp_adc_test.py example. The example uses ADC(0) (GPIO26).

It would be nice if the RP2 had an easy-to-use equivalent of the pyboard's ADC.read_timed function, but we're not there yet