owfs Development Site

Synopsis

• The HA7Net is a stand-alone bus master.
  

• An embedded web server
  

• Specific support for a few 1-wire chips (specifically EDS's own sensors and the temperature sensors).

• Support for raw byte sequences

Design

• Microprocessor

• 3 Electrically independent RJ-11 1-wire bus connectors

• TCP communications

• It's own discovery protocol based on UDP multicast.

Design limitations

• No overdrive mode

• Raw access (for unsupported chips) has limited length and can be overrun.

• Fixed web output format (but nicely scrapeable).

• Rudimentary locking and interference protection.

Support

Supported under owfs as a bus master

Use command line argument --ha7net=192.168.0.250:80 or just --ha7net for autodiscovery mode

Use "low-level" mode for all except device discovery (directory listing).

Support limitations

Doesn't implement the LOCK protocol. (Easy to add, but owfs already locks the bus).

TCP discovery mode works!!!.

Best use

• Solid housing and support.

• Easy to set up monitoring via tcp/ip wired network.

• Native support for EDS sensors (or through OWFS).

• Easy web access for testing -- but probably not compatible with owfs for simultaneous access).

• Alternatives

  • LinkHubE

  • EtherWeather

  • OpenWRT or OpenSlug - based owserver with serial or USB adapter.