Understood. Thanks for the explanation.
On 1/28/2014 16:07, Paul Alfille wrote: > The emulated serial requires changing baud rates for each 1-wire > communication, and using a serial byte to send each 1-wire bit. Since > most computer UARTs have a pretty small buffer, the CPU does a lot of > work waiting for the serial data. > > A microprocessor is great for low-level bit-banging, but sending each > serial command over the network will be slow. That's why I thought a > more efficient serial protocol would be advantageous. You could design > one, and we'll support it, but the chips (Link and HA7E) are about $21. > Seems like your time is worth something, especially since the power and > timing and pulse contouring and echo suppression will be better. > > > On Tue, Jan 28, 2014 at 3:41 PM, Colin Reese <colin.re...@gmail.com > <mailto:colin.re...@gmail.com>> wrote: > > Sorry, reading your last sentence, you did address this. Why would > you not recommend trying this? Error-prone? > > > On Tue, Jan 28, 2014 at 12:12 PM, Paul Alfille > <paul.alfi...@gmail.com <mailto:paul.alfi...@gmail.com>> wrote: > > I take it your microprocessor doesn't run linux. In that case, > you want it to look like a serial bus master. > > There are 3 serial bus masters that I can remember off hand: the > DS9097U, the Link and the HA5. The later 2 use a much simplified > serial data stream (simple ascii), and I think are both > available in chip format for fairly cheap. The radio part would > be transparent. > > http://www.ibuttonlink.com/products/linkoem > > http://www.embeddeddatasystems.com/HA7S--ASCII-TTL-1-Wire-Host-Adapter-SIP_p_23.html > > (I should add that the serial port can synthesize a bus master > -- the passive adapter) but I wouldn't recommend that remotely. > Code for DS9097U emulation is available -- Maxim never > considered restricting masters, only slaves). > > Paul Alfille > > > > On Mon, Jan 27, 2014 at 4:33 PM, Colin Reese > <colin.re...@gmail.com <mailto:colin.re...@gmail.com>> wrote: > > It will look like: > > 1Wire network (DS18B20, DS2408, etc) -- uC (ATTiny, ATmega) > GPIO, OneWire, DallasTemperature, SoftwareSerial libraries > -- XBee/Zigbee send -- XBee/Zigbee receive -- RPi > > At the moment the serial output from the uC is just code I > write that says 'hey, here the temperature is'. If I can > process it into a owserver friendly format at either end, > that would be great. Otherwise, I'll just have to process it > into a database using pyserial. Not a big deal, but not as > elegant as owfs and owserver. > > I'd happily put a DS2483 at the 1wire end if I thought it > would get me anywhere, but I can't see that it will. > > > On Mon, Jan 27, 2014 at 1:20 PM, Roberto Spadim > <robe...@spadim.com.br <mailto:robe...@spadim.com.br>> wrote: > > ? i don't understand.... > check: > > > ethernet (wifi ethernet, ethernet) > wireless (wifi ethernet, bluetooth, zb) > serial (rs232,rs485,rs422) > ow - serial-ow converters (ds2480b), microcontroler bus > (on/off gpio), > i2c-ow converters (ds2482) > > what part you need? > > > ------------------------------------------------------------------------------ > CenturyLink Cloud: The Leader in Enterprise Cloud Services. > Learn Why More Businesses Are Choosing CenturyLink Cloud For > Critical Workloads, Development Environments & > Everything In Between. > Get a Quote or Start a Free Trial Today. > > http://pubads.g.doubleclick.net/gampad/clk?id=119420431&iu=/4140/ostg.clktrk > _______________________________________________ > Owfs-developers mailing list > Owfs-developers@lists.sourceforge.net > <mailto:Owfs-developers@lists.sourceforge.net> > https://lists.sourceforge.net/lists/listinfo/owfs-developers > > > > > ------------------------------------------------------------------------------ > CenturyLink Cloud: The Leader in Enterprise Cloud Services. > Learn Why More Businesses Are Choosing CenturyLink Cloud For > Critical Workloads, Development Environments & Everything In > Between. > Get a Quote or Start a Free Trial Today. > > http://pubads.g.doubleclick.net/gampad/clk?id=119420431&iu=/4140/ostg.clktrk > _______________________________________________ > Owfs-developers mailing list > Owfs-developers@lists.sourceforge.net > <mailto:Owfs-developers@lists.sourceforge.net> > https://lists.sourceforge.net/lists/listinfo/owfs-developers > > > > > ------------------------------------------------------------------------------ > WatchGuard Dimension instantly turns raw network data into > actionable > security intelligence. 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Skip the complicated setup - simply import > a virtual appliance and go from zero to informed in seconds. > http://pubads.g.doubleclick.net/gampad/clk?id=123612991&iu=/4140/ostg.clktrk > > > > _______________________________________________ > Owfs-developers mailing list > Owfs-developers@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/owfs-developers > ------------------------------------------------------------------------------ WatchGuard Dimension instantly turns raw network data into actionable security intelligence. It gives you real-time visual feedback on key security issues and trends. Skip the complicated setup - simply import a virtual appliance and go from zero to informed in seconds. http://pubads.g.doubleclick.net/gampad/clk?id=123612991&iu=/4140/ostg.clktrk _______________________________________________ Owfs-developers mailing list Owfs-developers@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/owfs-developers