Re: [Owfs-developers] bus electrical questions

2015-01-15 Thread Stephen R. van den Berg
Jerry Scharf wrote: >to keep the bus topology. Because I don't know how many will be 18b20s >connected, I am putting a dip switch that will allow the bus to bypass >open rj45s. >This got me thinking about how long a stub I can have running from the >bus to the actual device. I know an inch on a

[Owfs-developers] bus electrical questions

2014-11-27 Thread Jerry Scharf
Hi, I'm in the thick of designing my test rig. It is now over 350 points mixed between thermocouples and 18b20s. I decided on 3 buses with ds2482-100s to handle this. These and some other things (I2C drivers and power) I need will sit on a beaglebone cape. Everything will be running at 3.3V I