Way back, in Apr 22, 2012 5:42pm to be precise, Patryk-6 started a
thread called 'usb-i2c-1wire tutorial'
(at https://sourceforge.net/p/owfs/mailman/message/29163416/) in which he
started discussing a USB-to-1-wire bus master
to replace the then discontinued DS2490. I believe that the DS2490 has now been
replaced by the DS2490r which is in
production so Patryk-6's need may no longer be there. I am however still
interested in the idea and my motivation
is to build a star-type network. The reason for a star network is to allow for
multiple independent 1-wire paths
originating from a common controller. Mutiple independent paths means less
concern about 1-wire bus lengths and allow
segmentation by requirement. So, for example, one could have a 1-wire bus to
control the greenhouse, another for house
controls\monitoring, another for the garden irrigation, … etc. The alternative
is to have one 1-wire bus snaking all over
the place. If there is a fault at one point all the 1-wire bus can go down. One
possible implementation is for a USB-to-I2C
interface (using, for example, an adafruit FT232H breakout unit) driving a
DS2482-800 (or multiple DS24282-100)
to give multiple independent 1-wire busses.
Unfortunately all the links in Patryk-6 original thread are no longer
valid so a lot of the information they contained is no longer available.
The main questions I'm interested in resolving is:
Can I use OWFS drivers to drive a DS2482-800 through the
USB-to-i2C interface (FT232H)?
If someone knows where the information in Patryk-6's original design is
that would be helpful as well as any other related information.
Regards
Joe P.
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