Jim Jackson  wrote:
> On 2018-06-20, bob prohaska  wrote:
>> Does the Pi (Pi3, in particular) have any ability to report
>> interal power supply voltages? Spot checks with a voltmeter
>> on the GPIO header are some help, but a running test that can
>> be logged over time would be much more informative.
>>
>> I found a web page suggesting "vcgencmd measure_volts core"
>> but on my Pi3 it reports VCHI "initialization failed". Apropos
>> didn't hit on voltage or volt
>>
>> As it happens I want to do this under FreeBSD, but if it can't
>> be done under Raspbian there's no hope. If it can, then I'll
>> look further.
>>
>
> I got initialization failed  until I ran it as root (or used sudo)
>
Thank you! I shoulda guessed....

bob prohaska

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