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Introduction WeatherXM H2 Open Edition (WS2001)

An 8-in-1 LoRaWAN weather station for your own network: The Things Network (TTN), ChirpStack or any LoRaWAN Network Server.

WeatherXM H2 weather station

What is the H2 Open Edition?​

The H2 Open Edition is the WeatherXM H2 (WS2001) weather station connected to your own LoRaWAN network instead of the WeatherXM network.

The hardware is the same as the Seeed Studio SenseCAP S2120 8-in-1 station, but the H2 runs WeatherXM's own firmware, which does more:

  • Every 12 seconds the station samples all sensors and aggregates them into one uplink per interval.
  • Wind gust (the highest 12-second peak in the interval) is reported next to the average wind speed.
  • Rain total (a lifetime counter) and the maximum rain rate of the interval are both reported.
  • Everything fits in one compact 24-byte frame. Periodically the frame is signed by the station's secure element, so you can prove that the data came from that station.
  • Only your data on your network. On your own network the station sends nothing but its own frames on FPort 99: no background modem traffic that your network server could not answer (firmware V4.6 and later).
  • Optional GNSS location. If you switch it on, the station sends a raw satellite scan about once a day that you can store and solve later (firmware V4.7 and later, off by default).
  • Your keys, your data. You choose the JoinEUI and AppKey. The station keeps its WeatherXM settings, so it can potentially return to the WeatherXM network later.
  • Firmware updates over Bluetooth from your browser, using flasher.weatherxm.com. The flasher brings older stations to the latest firmware automatically.
info

While the station is on your own network it is not part of the WeatherXM network: it does not earn $WXM rewards and its data does not appear in the WeatherXM app. It can potentially return to the WeatherXM network later, see Return to the WeatherXM network.

Next steps​

Check the box contents​

Make sure that everything is in order and you're all set to proceed with station assembly.

View Contents

Assemble your weather station​

Assemble all parts and make sure all sensors work as expected. For this step, you will need 6 AA batteries that are not included in the box.

View Station Assembly Instructions

Connect the station to your network​

Use the web flasher at flasher.weatherxm.com to bring the station to the latest firmware and point it at your network: choose the region, enter your JoinEUI and AppKey, and set the upload interval. You will need a computer or Android phone with Chrome or Edge and Bluetooth.

View Connect Instructions

Register the station and decode its data​

Add the station to The Things Network or ChirpStack, install the WeatherXM payload decoder, and watch the first measurements arrive.

View TTN and ChirpStack Instructions

Install your weather station​

This is one of the most important steps, as proper installation is key in order to collect valid weather data. For this step, you will need a pole that is at least 2m/6.5ft and a way to secure it in place (both not included in the box). Here you will also see the best practices on how to properly install the station according to WMO.

View Station Installation Instructions

Features and Specifications​

H2 Open Edition Weather Station (WS2001)​

Powered via a small solar panel. The maximum communication distance is 2 to 10km depending on the environment and the position of your gateway.

  • Air Temperature:​

    • Range: -40.0 - 80.0 °C
    • Accuracy: ±0.5 °C (0 - 80 °C) ±0.6 °C (-40 - 0 °C)
    • Resolution: 0.1 °C

  • Air Humidity:​

    • Range: 1 - 99% RH
    • Accuracy: ±3% (1 - 90% RH) ±4% (90 - 99% RH)
    • Resolution: 1% RH

  • Rain Hourly Rate:​

    • Range: 0 - 450 mm/h
    • Accuracy: ±7%
    • Resolution: 0.254 mm/h

  • Barometric Pressure:​

    • Range: 540 - 1100 hPa
    • Accuracy: ±5 hPa(700 - 1100 hPa) ±8hPa (540 - 699 hPa)
    • Resolution: 1 hPa

  • Wind Speed:​

    • Range: 0 - 50.0 m/s
    • Accuracy: ±0.5 m/s (<5 m/s) ±10% (>5 m/s)
    • Resolution: 0.1 m/s

  • Wind Direction:​

    • Range: 0 - 360°
    • Accuracy: ± 8°
    • Resolution: 1°

  • Light Intensity:​

    • Range: 0 - 200000 lux
    • Accuracy: ± 5%
    • Resolution: 1 lux

  • UV Index:​

    • Range: 0 - 16.0
    • Accuracy: ±10%
    • Resolution: 0.1

LoRaWAN and Data

  • LoRaWAN:​

    • LoRaWAN 1.0.4, Class A, OTAA (JoinEUI and AppKey chosen by you)
    • Regions: EU868, US915, AU915, AS923, IN865, KR920, RU864
    • One 24-byte frame on FPort 99 per interval (temperature, humidity, pressure, wind speed, wind direction, wind gust, rain rate, rain total, light, UV, battery status)
    • Default interval on your network: 5 minutes (within The Things Network fair-use limit), adjustable from 1 to 1440 minutes
    • Periodically signed (ECDSA P-256) by the station's secure element
    • Optional: a raw GNSS satellite scan about once a day (firmware V4.7 and later, off by default)

General Parameters

  • Operating Temperature:​

    • -20 to +60 °C (Use of alkaline batteries suggested)
    • -40 to +60 °C (Lithium battery)

  • Operating Humidity:​

    • 0 - 99% RH

  • Device Weight:​

    • 1.5 kg

  • Certification:​

    • CE / FCC / RoHS

  • Solar Panel:​

    • 0.5W (When there is sunlight, solar panels will be used first, otherwise batteries will be used)

  • Battery Type:​

    • AA size, 1.5 V batteries (alkaline or non-rechargeable Lithium battery)

  • Number of batteries:​

    • External battery box: x6 AA batteries

  • Battery Life:​

    • 1 year (solar panel with external battery box, 20 uplinks / hr)

  • External Battery Box:​

    • Support x6 AA 1.5V batteries
    • Cable length: 2 m
    • IP Rating: IPX6
* The battery life varies with the upload interval and the distance to the gateway.​