OH1RDS Weather station, location KP10BN Masku, SW Finland

NOTE: pictures and lastest changes found from my @oh1sa instagram account, PLS follow!

My weather station contains following components:

Weather station version 2 (under development/build)

Under construction Feb-Mar/2019
Replace WR89 due unreliable metering
Under building: use robust 1-wire thermometer humidy sensors, read them by RPI
Planning: use WMR89 wind speed and diretion plastic hardware, just replace electronics, start using wiring instead 433MHz ham band ISM radios
Dedicate RPI for weather meter collection
Simplify full station to: 2xRPI, Ethernet sw/gateway, VHF radio. All parts can easy replace

Weather station version 1 (CURRENT)

Oregon Scientific Weather Station WMR89
TP-Link router with MeteoBridge custom appliance application
Raspberry Pi A+ single board computer with Rasbian and running APRX 2.9 APRS Gateway software
RS-232 extension board for RPi to connect HAMDR radio
Ham software modified Comarco MDR VHF radio as "HaMDR" .. 5W output in 144.800MHz
Antenna 6m AGL Diamond X-50N
Geiger counter board, data collected via rs232-usb wire with python daemon in RPi

WMR89 collect weather information. Metebridge loads data from WMR89. I'll try use RPi for this function with Weewx linux/python application, but used python library was incompatible in RPI hardware when using CP210x serial driver with non-standard serial speed that is used WMR89 (128000bps). Same software work ok with normal PC hardware. This is known issue. And I like to build low power consumption solution, so I see that using Meteobridge with cheap router hardware is cheap (about 100eur) and low power solution for my needs.

I use cron script to read weather data from MeteoBridge over http. Script create raw aprs packet and I use APRX application to beacon it to radio interface (KISS) and also APRS-IS. Weather data is visible as https://aprs.fi/weather/a/OH1RDS-1 and radiation data here https://aprs.fi/weather/a/OH1RDS-2.

Future plans

DONE: Install antenna to rooftop
install wind speed and direction meter to new antenna tower
DONE: Add radiation (geiger) counter to telemetry data
Create ppt/pdf set of "how to build APRS weather station"

oh1sa@amsat.org, OH1SA/OH2YA homepage