Power & Source of Big Ideas

Different CPU temp for power from microUSB or headers PINs

Moderators: chensy, FATechsupport

we are experiencing a strange issue:
- if the NanoPi NEO board is powered by microUSB the temperature of the board stays around 70C
- if we connect the same power supply to the header pins, the temperature of the board goes up to 90C
Attached is a RRD graph we create reading the board temp from /sys/devices/virtual/thermal/thermal_zone0/temp
Powers.png (51.76 KiB) Viewed 1626 times

Any idea why ?
I would also like to know the reason behind this different temperature readings on two different methods of powering the nanopi.

Who is online

In total there are 13 users online :: 0 registered, 0 hidden and 13 guests (based on users active over the past 5 minutes)
Most users ever online was 5185 on Wed Jan 22, 2020 1:44 pm

Users browsing this forum: No registered users and 13 guests