Weather Station information

Weather Station Information

This weather station is a 1-wire weather station. It consists of a numerous devices, mostly daisy-chained.
The components were purchased from Hobby Boards which has now closed originally, but now includes devices from Sheepwalk in the UK and even a newer Baro sensor from Teracom. The data is collected by a program called Weather display. This automatically translates and uploads all the data to the internet.

This AWS is situated in Bedford
The Stevenson screen is in the rear of the property next to a open park, mounted 3m up to get good airflow. This is not 100% ideal, however after many years its very accurate for local temperature and humidity conditions.
The rain gauge is located on the shed roof, and has no trees or obstacles hindering readings. Though this is also not 100% ideal, it provides accurate readings.

The Teracom Baro is a TSP200 is a 1-Wire barometric pressure sensor.
The basic silicon MEMS element is based on proven piezo-resistive pressure sensor technology. It has high EMC robustness, high accuracy and linearity and long-term stability

Measures temperatures from -55C to +125C
0.5C accuracy from -10C to +85C
9-bit thermometer resolution and the Honeywell HIH-4000 series humidity sensor

Both the temp and humidity are remote from the board so it can be kept out of the weather and dry.

Mounted inside a Stevenson screen that was made by us out of old louvered barn doors. Double louvered as per WMO Spec.

Anemometer with 3 cup rotor measures wind speeds of 3 to 125+ MPH. Rugged Delrin body with bronze and Rulon bushings. Sapphire bearing to minimize wear.

Wind vane uses Hall effects. Wind direction resolution higher than one degree. Zero dead band - many potentiometer wind vanes have a dead spot of several degrees -this device has no dead band at all. Near-zero friction - since the magnet is not in contact with the Hall sensor, there is no friction from the sensor. Virtually infinite life - unlike potentiometers that wear out, the magnetic Hall sensor is non-contacting and should theoretically last forever.

Mounted on a 4m high mast atop the roof making it close to the BoM 10m standard.

The Hobby Boards’ Anemometer board uses the Dallas DS2423 and DS2438 1-Wire chips.

Rain Gauge

This is the HS TB3 high-quality tipping bucket rain gauge for measuring rainfall and precipitation in urban and rural locations. Due to the integrated syphon, the gauge delivers high levels of accuracy across a broad range of rainfall intensities.

Solar radiation

This using a Sheepwalk SWE3 Humidity Sensor Module with a mod from Weather Above SFH203P LED from Mouser

It is mounted on the rood using a pingpong ball as a diffuser for the LED. This works so well.

1. 12th of May 2020 - Rimco rain gauge moved to the roof of the shed near the rear fence (NE of property) for better results

2. June 2021 - 3m anemometer mast moved for house renovations. Now only located at a 5m height

3. March 2022 - Full 10m anemometer mast and new homemade Stevenson screen reinstated.

4. February 2024 - Ex HS Rain gauge now installed again due to Rimco missing tips