vcgencmd - Raspberry Pi System Software Reference - page 58

pixel : frequency (29)=108000000
vec : frequency (10)=0
hdmi : frequency (9)=163683000
dpi : frequency (4)=0

Option measure_volts
The measure_volts option allows the various subsystem voltages to be reported:

$ for id in core sdram_c sdram_i sdram_p ; do
echo −e "$id: $(vcgencmd measure_volts $id)" ;
done
core : volt=1.20V
sdram_c: volt=1.20V
sdram_i: volt=1.20V
sdram_p: volt=1.23V

Table 4-3 provides a legend for the output report lines.

Table 4-3. Valid Device Names for measure_volts

Device Description

core Core

sdram_c SDRAM controller

sdram_i SDRAM I/O

sdram_p SDRAM physical

Option measure_temp
The measure_temp option allows the user to retrieve the SoC temperature, in degrees
Celsius.

$ vcgencmd measure_temp
temp=36.3 °C

In this example, the relatively idle core was reported to be 36.3°C.