Connecting the MeteoHelix weather station to LoRaWAN wireless networks

QUESTION: How do I connect the MeteoHelix to LoRaWAN wireless networks and LoRa servers like TTN and others?

ANSWER: MeteoHelix has no connectors. It comes preconfigured with OTAA settings. The basic DevEUI is on the sticker on the bottom of the device and the AppKey is supplied. That is all that is required to connect to any LoRaWAN network server using OTTA authentication.

The rest of the detailed settings between the LoRaWAN gateway and the device (like setting device address and LoRaWAN modem configuration) are handled by the LoRa server automatically.

Some communication settings of the MeteoHelix can be changed remotely via a downlink (those required for ABP and others). OTAA is the default way to connect and recommended from data security point of view by the LoRa Aliance.

Time synchronization via LoRaWAN is also performed via a downlink. Instructions for setting up time synchronization of the MeteoHelix can be found here: MeteoHelix Remote Time Sych Setup

If using the MeteoHelix in ABP mode, ABP settings can be reset to defaults by resetting the weather station.

RESETTING

Red light flash can be seen through the white filter cap. In outdoor conditions, it may be had to see, so we advise to turn the MeteoHelix on indoors.

Red light flash can be seen through the white filter cap. In outdoor conditions, it may be had to see, so we advise to turn the MeteoHelix on indoors.

This is performed by placing the supplied magnet stick next to the white sensor head to turn OFF and subsequently repeating the procedure to turn ON the MeteoHelix. A long red flash indicates a changing ON/OFF state. After the long flash, ON state is indicated by a short red flash every 5 seconds. In OFF state the device does not flash and does not send data.

In the OFF state the MeteoHelix is actually sleeping with an average power consumption of about 4 μA (microAmperes). In the OFF state, the device battery will last over a year. If placed in the sun, the MeteoHelix will charge even in the OFF state.

Configuring via NFC

NFC config is the works for 2020 along with NB-IoT wireless.

Upgrading Davis Vantage Pro with a helical MeteoShield Pro for improved response and temperature accuracy

QUESTION: How to mount a Davis temperature humidity sensor inside a MeteoShield Professional?

Davis weather station with a helical MeteoShield Professional installed on the right and connected to the davis wireless console.

Davis weather station with a helical MeteoShield Professional installed on the right and connected to the davis wireless console.

ANSWER: I looked at the Davis sensor and checked with the Davis community about fitting it into the MeteoShield Pro. Installation instructions and advice follow:

The old Vantage Pro, before 2016 uses a Sensirion SHT11 sensor, the new version use the SHT31-LSS, in any case the sensor is not the one that we can buy online but a specific version for Davis. The Davis PCB (green) where the sensor is installed is large and will fit into the MeteoShield Pro only vertically and only if the cable strain relief is removed and the cable is bent to follow the long side of the PCB and out the bottom of the MeteoShield Pro.

It's also possible to cut the Strain Relief on the original cable to be able to pass it through the screen plates. After this, you can attach a new connector, which is not a big problem but some users will want to make this step or will be scared. The length of the original sensor cable is also very short, about 50 cm (20 inches), so it may require an extension.

A big thank you goes out to the Italian and USA amateur meteorological community with special thanks to Mauro Serenello who was kind enough to provide us with instructions and pictures for this post.

How to mount a MeteoHelix IoT Pro weather station or MeteoShield?

QUESTION: How to mount a MeteoHelix IoT Pro weather station or MeteoShield?

ANSWER: The illustration below indicates some of the various mounting options of the MeteoHelix IoT Pro weather stations and also of the MeteoShield Professional solar radiation shield for weather station air temperature sensors.

MeteoHelix weather station & MeteoShield mounting options.

MeteoHelix weather station & MeteoShield mounting options.