I²C, SMBus and hardware monitoring references

• I²C
• General overview
• I²C FAQ
• Philips, the I²C developers

This site contains many example programs
• Simon Vogl's I²C-Bus for Linux Page and U.S. Mirror
• Simon's I²C newsgroup
• SMBus
• SMBus specification documents

Includes version 1.1 and version 2.0 documents.
• I²C and SMBus implementations
• Acer Labs M1533/M1543C

Acer Labs chipsets include SMBus adapters, integrated with many other functions. Password required for datasheets.
• Intel PIIX4, i801, i810

Intel SMBus adapter, integrated with many other functions. There are datasheet for most chipsets.
• Silicon Integrated Systems Corp.

SIS5595 data sheets
• VIA South Bridge (VT85C586B)

VIA I²C adapter, integrated with many other functions. There is a separate section with datasheets.
• Hardware monitoring chips
• Analog Devices

Sensor data sheets
• Dallas Semiconductor

DS1780 data sheets
• Genesys Logic

GL518SM and GL520SM data sheets
• Hewlett Packard

HP Maxilife (datasheets only under NDA...)
• Linear Technologies

LTC1710 data sheets
• Maxim

data sheets
• Myson

data sheets
• National Semiconductor

LM75/78/79/80 reference sheets.
• Silicon Integrated Systems Corp.

SIS5595 data sheets
• Texas Instruments

data sheets
• VIA

VIA bridges and chips which include integrated sensors. There is a separate section with datasheets.
• Winbond

W83781D, W83782D, W83783S and W83627HF chips. Data sheets can be found here for most Winbond chips.
• Other protocol information
• IPMI documentation

Intelligent Platform Management Interface, a standard for hardware monitor chip reading
• Hardware Monitoring Applications using the lm_sensors package. Also see the prog/ directory in the lm_sensors package for sample applications.
• Freshmeat search for "Lm_sensors" brings up a good starter list
• A web-based hardware monitor (tellerstats)

This is created by Phil Edelbrock, one of our main project contributors (Now defunct, but still viewable). An updated version is now included in the lm_sensors package.
• asfatm

After Step fan and temperature monitor
• asftavm

After Step fan, temperature, and voltage monitor. An enhancement of asfatm.
• Dogsled

A tool to manage and monitor Linux clusters.
• GLS

Stijn Jonker's program to make nice graphs of the lm_sensors output. Recommended. Requires mysql package.
• gpdial_applet

A Gnome applet that displays a specific number from a file on the Gnome panel. By configuring it for a specific sensor file in /proc, you get a sensor reading. Requires fam and fam++.
• GnomeSensors

Brendon Humphrey's Gnome display program for lm_sensors. Nice. Recommended.
• Gsensor

GTK app. In Italian.
• klm

Brendon Humphrey's KDE display program for lm_sensors.
• LCD4Linux

Displays kernel information on an external LCD.
• MonitorSensors

Daniel Schudel's Gnome display program for lm_sensors. Requires GTK--.
• Procmeter

A comprehensive system monitoring package. Nice desktop app. Recommended.
• Sens2web

A perl script to generate a web page of sensor readings.
• Sensor Sweep Applet

A configurable Gnome Panel Applet.
• Sensors Server

Nice client/server application with a html-embedded Java applet.
• sentinelle
  A daemon which warns you when your sensor readings reach critical values.
• Thermal
  A simple set of scripts to plot LM75 temperatures using gnuplot. Similar to tellerstats.
• wmsensors and wmlm78

wmlm78 and wmsensors are graphical extensions of lm_sensors, which can be docked in Window Manager. By Adrian Baugh.
• wmsensors for W83697HF

By J. D.
• Other Hardware monitoring implementations (NOT using lm_sensors)
• Motherboard Monitor

A very comprehensive package for Windows. Supports many many devices. Also has a great database of motherboards.
• Alexander Larsson's lm78 module

This is the original module lm_sensors is based upon
• Ronald Schmidt's lm78 module
• Beowulf project lm78 module

Written by Erik Hendriks. This Nasa site may have a newer version. There is also SCMS Cluster Management for Beowulf clusters available, which supports the LM78 through the above kernel module.
• txwd, another lm78 module
• András Major's LM75 module, and graphical monitor for it
• Solaris drivers for the LM78
• Beta SMBus access through the Bios interface
• Other useful tools
• CPUBURN

CPU-heating program to stress-test marginally-cooled systems and test lm_sensors. Recommended.
• Round Robin Database (RRDTool)

The RRD tool is a database for readings taken over time, such as sensor data. The lm_sensors package contains scripts to create and update an RRD database and graphically display the data on webpages.
• White Papers and Other things
• Designing with SMBus 2.0

A great introduction to SMBus 2.0 and the differences from Version 1.x.
• Alert Standard Format Specification

A new standard for system management messages using the SMBus and passing this information to remote management devices. From the Distributed Management Task Force.
• lm_sensors mailing list archive

This is the mailing list archive for sensors@stimpy.netroedge.com, the developer's mailing list. The archive contains messages since October 28, 2001.
• Recursive Make considered Harmful

A paper on which the version 2 Makefile is based
• Building a temperature sensor using a thermistor
  An article on the 3D Hardware site.
• NTC Thermistor Guide

A comprehensive description of the physics and mathematics of NTC Thermistors
• Standard Manufacturers Identification Code

The official list of Manufacturer IDs for EEPROMs.
• Guide to Temperature Sensors

General information.
• Measuring temperatures on computer chips with speed and accuracy

The advantages of thermal diodes over traditional thermistors.
• A chip you can use...

An article detailing the features of the Analog Devices ADM9240.