Problems with AAG WX Station, Barometer, and Humidity Sensor

Archive Archived Weather Display Usage Questions
1

I have an AAG 1-wire weather station (ver 3), pressure sensor (TAI8570), humidity sensor (TAI8540B), and a Dallas Rain Gauge. I’m using Weather Display software. I have all 1-wire devices connected via CAT-5 wire. I use only two wires, 1-wire Data and 1-Wire RTN.

There is no external power being supplied to the 1-wire network.

When I connect either the humidity sensor OR the pressure sensor or both sensors to the 1-wire network, I lose the Wind Direction. The problem seems to be with A/D conflicts but I’m not sure.

:frowning:

Any suggestions?

2

:smiley: :smiley:

Problem solved with addition of a 100 ohm rsistor on the OW DATA line. See
http://pdfserv.maxim-ic.com/arpdf/AppNotes/app148.pdf Appendix D

Geewizard