Use "pyb.ADC.read_timed()" interface for more robust audio sampling?

[amotl]

Hi @jacobron,

first things first: Thanks so much for conceiving this data logger and also for sharing your design files and firmware code with the community. Keep up the spirit!

I found a short opportunity to quickly look at the code and found a specific thing I would like to mention here. As we can see with these lines initializing the ADC

EasyHive_Pycom_Shield/V1.0/software/main.py

Line 12 in cc5b18d

from machine import ADC

EasyHive_Pycom_Shield/V1.0/software/main.py

Lines 157 to 160 in cc5b18d

	adc_mic = ADC(0)
	adc_mic.init(bits=12)
	adc_mic_c = adc_mic.channel(pin='P13', attn=ADC.ATTN_11DB)

and later code for stuffing data into the buffer, this uses the highlevel ADC interface from the machine package.

On the other hand, I found the lowlevel ADC interface from the pyboard package provides convenient read_timed() and even read_timed_multi() methods. This feels a little bit like it would be more efficient when shuffling data around. What do you think about this?

With kind regards,
Andreas.