lm sensors

lm_sensors (Linux-monitoring sensors), is a free open source software-tool for Linux that provides tools and drivers for monitoring temperatures, voltage, humidity and fans. It can also detect chassis intrusions.

decode-dimms.pl decodes and prints information on any RAM memory module with SPD information in the computer.

It contains a library called libsensors with an API that applications can use. It contains a daemon called sensord which supports RRD.

Software like GKrellM, KSensors, xsensors and Net-SNMP make or can make use of lm-sensors.

The project formerly hosted at www.lm-sensors.org can now be found on GitHub.^[2]

Example output

$ sensors
coretemp-isa-0000
Adapter: ISA adapter
Core 0:      +51.0°C  (high = +78.0°C, crit = +100.0°C)

coretemp-isa-0001
Adapter: ISA adapter
Core 1:      +49.0°C  (high = +78.0°C, crit = +100.0°C)

f71882fg-isa-0a00
Adapter: ISA adapter
3.3V:        +3.30 V
Vcore:       +1.21 V  (max =  +2.04 V)
Vdimm:       +1.82 V
Vchip:       +1.38 V
+5V:         +5.00 V
12V:        +14.37 V
5VSB:        +4.33 V
3VSB:        +3.30 V
Battery:     +3.22 V
CPU:        2035 RPM
System:        0 RPM  ALARM
Power:         0 RPM  ALARM
Aux:           0 RPM  ALARM
CPU:         +31.0°C  (high = +85.0°C, hyst = +81.0°C)
                      (crit = +50.0°C, hyst = +46.0°C)  sensor = transistor
System:      +29.0°C  (high = +85.0°C, hyst = +81.0°C)
                      (crit = +100.0°C, hyst = +96.0°C)  sensor = transistor

See also

• I²C
• SMBus

References

1. ↑ V3-4-0 on GitHub
2. ↑ http://www.spinics.net/lists/lm-sensors/msg44289.html

External links

• lm-sensors on GitHub
• "lm_sensors". Freecode. 
• i2c-tools on GitHub (split from lm_sensors)
• "I²C Tools for Linux". Freecode.