Monitoring internal voltages

That command works on a 3B+ and a Zero W (running a recent Raspbian Lite headless) although it returns a suspicious looking "volt=1.2000V" on both of them.

From elinux:

vcgencmd measure_volts

Shows voltage. id can be one of core, sdram_c, sdram_i, sdram_p, and defaults to core if not specified.

root@raspberrypi:~# \

core: volt=1.20V sdram_c: volt=1.20V sdram_i: volt=1.20V sdram_p: volt=1.23V

I got initialization failed until I ran it as root (or used sudo)

Thank you! I shoulda guessed....

bob prohaska

Normally it works without sudo, though. Could be something wrong with your Raspbian installation or at least s/t non-standard, perhaps like using a different user account than pi.

I am using s different account than pi, but I tried my double-damndest to make all the changes required to get along without the pi account and _thought_ I'd succeded.

Guess not 8-(

Thanks for writing,

bob prohaska

Might not be your fault; apparently user pi is hardwired in a lot of RPi-specific code :(

That wouldn't surprise me at all - just look at the ever-increasing list of hard-wired user names used by any of the mainstream Linux distros.

That said, I've never used pi on my RPi - one of the first things I did was to set up another login and configure it to work in much the samw way as my usual logins on by Fedora systems.