6. Connecting the weather station
6.1. LaCrosse/Technoline WS-2300, WS-2350 stations
These stations are somehow problematic when you try to use them with RS-232
interfaces other than personal computer serial ports.
WS-23XX stations need an additional polarization positive and negative voltage on
pin 4 and pin 7 of DB9 connector. For that purpose we can use our 5V voltage output, but
we will also need to use the second RS-232 port's TXD line for negative voltage
polarization. If you want to use WS-23XX weather stations, you will not be able to use
your second RS-232 port for any other purpose (so both ports are used by WS-23XX
weather stations).
For WS-23XX weather stations you can use our prebuilt cable: “CAB02 - PLXDigi serial
interface cable (for WS-23XX)”.
6.2. Peet Bros Ultimeter stations
For Peet Bros Ultimeter weather stations, you need to use RXD, TXD, and GND
lines of PLXDigi serial interface. Stations must then be manually switched to "data
logger" mode. According to the manufacturer's instructions, you should press CLEAR +
WIND SPEED buttons for 3 seconds to activate the "data logger".
For Peet Bros weather stations you can use our prebuilt cable: “CAB01 - PLXDigi serial
interface cable”.
6.3. Davis Vantage stations
To connect PLXDigi to Davis weather stations you need to use an additional RS-232
“datalogger” interface available from the manufacturer. Device part number is
06510SER. You need to use RXD, TXD and GND lines of PLXDigi serial interface.
For Davis weather stations you can use our prebuilt cable: “CAB01 - PLXDigi serial
interface cable”.
Davis stations datalogger interface comes in two kinds: “standard” datalogger or “APRS”
datalogger. According to my current knowledge, both types work fine with PLXDigi (it
doesn't use an “APRS” feature of datalogger but “APRS” datalogger has also the same
communication options like “standard” one).
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