>ADC and PWM are the fun one right now.. 
>
>For the ADC, as long as you have a recent u-boot (v2018+) 
>
>sudo /opt/scripts/tools/version.sh 

Bootloader is 2018.03+

The adc can be turned off and on via an overlay: 
>
> enable_uboot_overlays=1 
>
> #enables adc 
> #disable_uboot_overlay_adc=1 
>
> #disables adc 
> disable_uboot_overlay_adc=1 
>

With the Blue MMAP dtb mentioned previously still in uEnv.txt

The above doesn't seem to work with the python examples from adafruit.

with uboot overlays enabled, disabling it or enabling it still returns:

RuntimeError: Unable to setup ADC system. Possible causes are: 
  - A cape with a conflicting pin mapping is loaded 
  - A device tree object is loaded that uses the same name for a fragment: 
helper

ADC Enabled or disabled, rc_test_adc still works.

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