owfs Development Site

• 1: OWFS 1-Wire File System
  • 1.1: What is 1-wire?
  • 1.2: Master and slaves
  • 1.3: Divide and conqueror
  • 1.4: owserver
  • 1.5: What is "uncached"?
  • 1.6: Temperature measurements
  • 1.7: Survey
  • 1.8: Quickstart guide
  • 1.9: Vendors
• 2: Software
  • 2.1: man pages: Programs
    • 2.1.1: Programs
      • 2.1.1.1: configuration file
      • 2.1.1.2: owshell
      • 2.1.1.3: owserver
      • 2.1.1.4: owftpd
      • 2.1.1.5: owhttpd
      • 2.1.1.6: owfs
      • 2.1.1.7: owtap
      • 2.1.1.8: owmon
  • 2.2: Language modules
    • 2.2.3: Full - libow
      • 2.2.3.1: owcapi
      • 2.2.3.2: owperl
      • 2.2.3.3: owtcl
      • 2.2.3.4: owphp
    • 2.2.4: Light - OWNet
      • 2.2.4.1: OWNet.vb
      • 2.2.4.2: OWNet.py
      • 2.2.4.3: OWNet.pm
      • 2.2.4.4: OWNet.php
      • 2.2.4.5: ownet
  • 2.3: man pages: DS18xx
    • 2.3.1: DS18S20
    • 2.3.2: DS18B20
    • 2.3.3: DS1821
    • 2.3.4: DS1822
    • 2.3.5: DS1825
  • 2.4: man pages: DS19xx
    • 2.4.1: DS1904
    • 2.4.2: DS1920
    • 2.4.3: DS1921
    • 2.4.4: DS1963L
    • 2.4.5: DS1963S
    • 2.4.6: DS1977
    • 2.4.7: DS1982
    • 2.4.8: DS1985
    • 2.4.9: DS1986
    • 2.4.10: DS1990A
    • 2.4.11: DS1991
    • 2.4.12: DS1992
    • 2.4.13: DS1993
    • 2.4.14: DS1994
    • 2.4.15: DS1995
    • 2.4.17: DS1996
  • 2.5: man pages: DS24xx
    • 2.5.1: DS2401
    • 2.5.2: DS2404
    • 2.5.3: DS2405
    • 2.5.4: DS2406
    • 2.5.5: DS2408
    • 2.5.6: DS2409
    • 2.5.7: DS2413
    • 2.5.8: DS2415
    • 2.5.9: DS2417
    • 2.5.10: DS2423
    • 2.5.11: DS2430A
    • 2.5.12: DS2431
    • 2.5.13: DS2433
    • 2.5.14: DS2436
    • 2.5.15: DS2437
    • 2.5.16: DS2438
    • 2.5.17: DS2450
  • 2.6: man pages: DS25xx
    • 2.6.1: DS2502
    • 2.6.2: DS2505
    • 2.6.3: DS2506
  • 2.7: man pages: DS27xx
    • 2.7.1: DS2720
    • 2.7.2: DS2740
    • 2.7.3: DS2751
    • 2.7.4: DS2755
    • 2.7.5: DS2760
    • 2.7.6: DS2770
    • 2.7.7: DS2780
    • 2.7.8: DS2781
    • 2.7.12: DS2788
  • 2.8: man pages: Misc devices
    • 2.8.1: DS1427
    • 2.8.2: DS2890
    • 2.8.3: DS28E04
    • 2.8.4: DS28EA00
    • 2.8.5: DS28EC20
    • 2.8.6: LCD
    • 2.8.7: EEEF
    • 2.8.8: EDS00XX
    • 2.8.9: EDS0064
    • 2.8.10: EDS0065
    • 2.8.11: EDS0066
    • 2.8.12: EDS0067
    • 2.8.13: EDS0068
    • 2.8.14: EDS0070
    • 2.8.15: EDS0071
    • 2.8.16: mCM001
    • 2.8.17: mAM001
    • 2.8.18: mRS001
  • 2.9: OWTAP
    • 2.9.1: Main window
    • 2.9.2: Detail windows
    • 2.9.3: More details
    • 2.9.4: Message statistics
    • 2.9.5: Persistence windows
    • 2.9.6: Clients window
    • 2.9.7: Status window
  • 2.10: OWMON
    • 2.10.1: OWMON main window
    • 2.10.2: OWMON bus list
  • 2.11: Other software
    • 2.11.1: Weather -- OWFSWS
    • 2.11.2: FLI4L
    • 2.11.3: One Wire on Fire
• 3: Hardware
  • 3.1: Bus masters
    • 3.1.1: usb DS9490R
    • 3.1.2: usb ECLO
    • 3.1.3: usb MP00200
    • 3.1.4: i2c DS2482-100
      • 3.1.4.1: i2c parallel port design
      • 3.1.4.2: Advanced i2c
    • 3.1.5: i2c DS2482-800
    • 3.1.6: com DS9097 (passive)
    • 3.1.7: Fake adapter
    • 3.1.8: Tester adapter
    • 3.1.9: usb USB9097
    • 3.1.10: EtherWeather
    • 3.1.11: HA7Net
      • 3.1.11.1: address discovery
    • 3.1.12: LinkUSB
    • 3.1.13: HA7E
    • 3.1.14: LinkHub-E
    • 3.1.15: TAI603B
    • 3.1.16: OMAP
    • 3.1.17: W1 kernel driver
    • 3.1.18: OW-SERVER-ENET
      • 3.1.18.1: ENET FIRMWARE
      • 3.1.18.2: ENET Configuration
  • 3.2: Standard devices
    • 3.2.1: Family Code lookup
    • 3.2.2: Family Code list
  • 3.3: 3rd party devices
    • 3.3.1: LCD
    • 3.3.2: Thermocouples
      • 3.3.2.1: Type B
      • 3.3.2.2: Type E
      • 3.3.2.3: Type J
      • 3.3.2.4: Type K
      • 3.3.2.5: Type N
      • 3.3.2.6: Type R
      • 3.3.2.7: Type S
      • 3.3.2.8: Type T
    • 3.3.3: Locator
    • 3.3.4: Light sensor
    • 3.3.5: Weather Station
    • 3.3.6: Humidity
      • 3.3.6.1: Temperature compensation
      • 3.3.6.2: Datanab humidity sensor
    • 3.3.7: Voltage
    • 3.3.8: Barometer
    • 3.3.9: UVI
    • 3.3.10: Moisture
    • 3.3.11: CO2 sensor
    • 3.3.12: BAE0910
    • 3.3.13: 8 Channel I/O
    • 3.3.14: RTD sensor
    • 3.3.15: EDS enviromental sensors
    • 3.3.16: WS603 Weather Instrument
    • 3.3.17: Vibration Sensor
  • 3.4: Appliances
    • 3.4.1: NSLU2
    • 3.4.2: Wireless router
    • 3.4.3: OMAP
    • 3.4.4: WL-HDD
    • 3.4.5: FOX board
    • 3.4.6: Foxboard G20
    • 3.4.7: Dockstar
    • 3.4.8: SheevaPlug
    • 3.4.9: OpenMoko Freerunner
    • 3.4.10: Beaglebone black
    • 3.4.11: Raspberry Pi
  • 3.5: Hubs
    • 3.5.1: DS2409 microhub
    • 3.5.2: 4 Channel Hub
  • 3.6: Voltage table
  • 3.7: Switches
  • 3.8: Wiring standards
• 4: Examples
  • 4.1: Published articles...
    • 4.1.1: Linux Magazin by Michael Schilli (owperl) [German]
    • 4.1.2: Pyzine by Peter Kropf (owpython)
    • 4.1.3: Hack-A-Day
  • 4.2: Hardware and designs
    • 4.2.1: DS1821 Thermostat Circuit -- Doug Collinge
    • 4.2.2: Custom hardware -- William Robison
    • 4.2.3: Ideas and Prototypes -- Gregg Levine
    • 4.2.4: ASUS wireless -- Wim Heirman
    • 4.2.5: Fan and battery control -- Majek Wodzinski
    • 4.2.7: WRT router mods (Patryk)
  • 4.3: Home and Office
    • 4.3.1: Monitor a wine cellar
    • 4.3.3: Office monitoring -- Wim Heirman
    • 4.3.4: Solar Heating Control -- Christian Schumann and Christian Magnusson
    • 4.3.5: Home monitoring -- Paul Rimmer
    • 4.3.6: Automatizujeme domácnost I
    • 4.3.7: LCD temperature display
    • 4.3.8: Greenhouse control
    • 4.3.9: Home monitoring how-to -- Silvano Gai
  • 4.4: Aquarium
    • 4.4.1: Aquarium automation -- Rob Conway
    • 4.4.2: Reef Tank -- Scott Jilek
  • 4.5: Mobile
    • 4.5.3: Home Trailer -- Brian Fahrlander
  • 4.6: Industrial
    • 4.6.1: Hydroelectric plant
  • 4.7: Garden
• 5: Setup
  • 5.1: Setup
    • 5.1.1: MS Windows
      • 5.1.1.1: Windows USB
    • 5.1.2: Permissions
      • 5.1.2.1: Hotplug
      • 5.1.2.2: Fuse
    • 5.1.3: Database linkage
      • 5.1.3.1: Postgres and Python by Jerry Scharf
    • 5.1.4: Testing without hardware
    • 5.1.5: Aliases
      • 5.1.5.1: Alias improved
    • 5.1.6: Macintosh
    • 5.1.7: NetBSD
    • 5.1.8: Startup sequence
      • 5.1.8.1: Startup DS9097U
      • 5.1.8.2: Startup LINK emulate mode
      • 5.1.8.3: Startup LINK ascii mode
      • 5.1.8.4: Startup USB (DS9490R)
      • 5.1.8.5: Startup LinkUSB
      • 5.1.8.6: Startup Passive (9097)
      • 5.1.8.7: Startup HA5
      • 5.1.8.8: Startup HA7Net
      • 5.1.8.9: Startup OW-SERVER-ENET
      • 5.1.8.10: Startup owserver
      • 5.1.8.11: Startup Avahi
      • 5.1.8.12: Startup Fake
      • 5.1.8.13: Startup Mock
      • 5.1.8.14: Startup Tester
      • 5.1.8.15: Startup USB scan
    • 5.1.9: Command line
    • 5.1.10: Ubuntu setup
      • 5.1.10.1: Old Ubuntu
      • 5.1.10.2: Building under Ubuntu
    • 5.1.11: Git access
  • 5.2: Install
    • 5.2.1: Download
    • 5.2.2: Configuration
    • 5.2.3: NSLU2 (German)
      • 5.2.3.1: Initial NSLU2 preparation
      • 5.2.3.2: OWFS install step
  • 5.3: udev
    • 5.3.1: UDEV and USB
  • 5.4: Distributions
    • 5.4.1: Debian
    • 5.4.2: Slackware
    • 5.4.3: Gentoo
      • 5.4.3.1: Gentoo Scripts
  • 5.5: Bonjour (zeroconf)
    • 5.5.1: Bonjour library
    • 5.5.2: Avahi discovery
    • 5.5.3: FTP browsing
• 6: Display
  • 6.1: Javascript: Raphael.js
• 7: Advanced
  • 7.1: Cache
    • 7.1.1: Cache objects
    • 7.1.2: Cache flip
    • 7.1.3: Remote cache
    • 7.1.4: Cache Structure
  • 7.2: Error management
  • 7.3: owserver protocol
    • 7.3.1: Loop suppression
    • 7.3.2: tcp messages
    • 7.3.3: owserver flag word
    • 7.3.4: owserver message types
    • 7.3.5: Persistent connections
    • 7.3.6: owlib client persistence
    • 7.3.7: Directory Messages
  • 7.4: Binary sizes
  • 7.5: Porting
  • 7.6: Performance
  • 7.7: To Do
  • 7.8: Read and Write object
    • 7.8.1: struct owq_wire_query assumptions
    • 7.8.2: Object write process
    • 7.8.3: Object read process
  • 7.9: Directory locking
  • 7.10: slave support
    • 7.10.1: Slave code
  • 7.11: SNMP
  • 7.12: Structure Directory
  • 7.13: External sensor support
• 8: Help
  • 8.1: OWFS websites
  • 8.2: Source Availability and Information
    • 8.2.1: Browse source code
    • 8.2.2: git inspector
    • 8.2.3: Change log
  • 8.3: Search
  • 8.4: License
  • 8.5: Tutorial links
  • 8.6: Internal help
    • 8.6.1: Internal help=device
    • 8.6.2: Internal help=program
    • 8.6.3: Internal help=cache
    • 8.6.4: Internal help=job
    • 8.6.5: Internal help=temperature
  • 8.7: Maintainers
  • 8.8: Logo poll
  • 8.9: Quirks and Problems
    • 8.9.1: locks and unlocks
  • 8.10: FAQ
    • 8.10.1: What is 1-wire good for?
  • 8.11: Error codes
    • 8.11.1: Error numbers
  • 8.12: Debugging
    • 8.12.1: error_level
    • 8.12.2: error_print
    • 8.12.3: foreground
    • 8.12.4: debug
    • 8.12.5: detail

OWFS 1-Wire File System

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Activity:

OWFS is an easy way to use the powerful 1-wire system of Dallas/Maxim.

OWFS is a simple and flexible program to monitor and control the physical environment. You can write scripts to read temperature, flash lights, write to an LCD, log and graph, ...

1-Wire	Files:
Inexpensive devices, simple wiring, parasitic power Unique addresses, individually addressable USB, serial and i2c adapters Mature technology, consulting and aftermarket support iButton steel sealed devices New fancy 3rd-party designs	Temperature, thermocouples Humidity, LCD, pressure, counters Memory, encryption Voltage, current, logic Switches Weather (wind, humidity, UV, temperature).
OWFS
Filesystem access ( i.e. 10.001122334/temperature ) (owfs) Web access (owhttpd) Remote network access (owserver) Direct language support for perl, python, php, tcl, Java, C (libow, ownet)	Embedded appliances: Linksys router, NSLU2, FOX Bootable CD Supported on i386, MIPS, ARM, Coldfire, Linux, OSX, Windows (Cygwin), FreeBSD FREE, under the GPLv2 license
Uses
FUN, hobby projects, neat hacks Home automation Environmental monitoringl Security	Process control Server rooms HVAC Weather station