Weather Station Driver
Supported Weather Stations
Heath/Questech: ID-5001
Peet Brothers: Ultimeter Series (II, 100, 200, 500, 800, 2000, 2100)
TAPR: T-238
Davis: Monitor II series, Vantage Pro
Serial Cable
No special cable is needed other than the cable supplied and/or specified by the manufacturer.
Baud Rate
The weather station baud rate must agree with the baud rate used by the driver. 9600 should work on most machines. However, if you experience strange data or missed characters, try a lower baud rate. If you are not using a 16550 UART, get one.
Default baud rates are as follows:
Peet 2400 ID5001 9600 T-238 2400 Davis Monitor II 2400 Davis VP 19200 The default baud rate can be changed by a setting in wxnhostd.conf (not normally required).
If you experience difficulty, see the troubleshooting section on serial ports.
Weather Station Checkout
If at all possible, start a terminal program - such as minicom - and check the operation of the weather station prior to starting the wxnhostd daemon. Consult your manual for weather station for commands (note - some weather stations do not have commands or commands that can be executed in a terminal program). In the case of the Peet stations, you should see a constant stream of characters coming from the station.
Setup
Ultimeter 100, 500, or 800: The unit must be in the data-logging mode. To do this, press and hold the -o- key and the wind vane key simultaneously for 3 seconds. Can only be set via the keyboard.
Ultimeter 2000/2100: Does not require manual selection of the port mode since it is set by the driver.
Ultimeter II: Has only one mode. The driver for this station knows this and handles it as expected.
T-238: Set the unit to the "Peet mode" at 2400 baud through the appropriate menu and check that all sensors have been configured prior to startup.