It did not work without the resistor.
I thought to look at Adafruit product information:
https://www.adafruit.com/products/381
"We toss in a 4.7k resistor, which is required as a pullup from the DATA to
VCC line when using the sensor."
Yesterday evening it worked with the 5K resistor. (Actually 5 1K in series.)
This morning I tried with 4K. It didn't work.
With or without the resistor, soon as I connect the DS18B20 the MS-TV
device disappears and the DS18B20 is not seen.
I don't know electronics but does this sound like too much resistance is
being introduced by the long cable?
Thanks for your reply.
Peter
On Tue, Mar 1, 2016 at 11:22 AM, Matthias Urlichs <matth...@urlichs.de>
wrote:
> On 01.03.2016 19:48, Peter Hollenbeck wrote:
> > When trying to get it working I read that the DS18B20 needs a 4.7K
> > resistor connecting +5V to Data.
>
> Where did you read that? Did you try without the resistor?
>
> -- Matthias Urlichs
>
>
>
>
> ------------------------------------------------------------------------------
> Site24x7 APM Insight: Get Deep Visibility into Application Performance
> APM + Mobile APM + RUM: Monitor 3 App instances at just $35/Month
> Monitor end-to-end web transactions and take corrective actions now
> Troubleshoot faster and improve end-user experience. Signup Now!
> http://pubads.g.doubleclick.net/gampad/clk?id=272487151&iu=/4140
> _______________________________________________
> Owfs-developers mailing list
> Owfs-developers@lists.sourceforge.net
> https://lists.sourceforge.net/lists/listinfo/owfs-developers
>
------------------------------------------------------------------------------
Site24x7 APM Insight: Get Deep Visibility into Application Performance
APM + Mobile APM + RUM: Monitor 3 App instances at just $35/Month
Monitor end-to-end web transactions and take corrective actions now
Troubleshoot faster and improve end-user experience. Signup Now!
http://pubads.g.doubleclick.net/gampad/clk?id=272487151&iu=/4140
_______________________________________________
Owfs-developers mailing list
Owfs-developers@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/owfs-developers
