Topic: Davis Airlink Professional Air Quality Sensor PM 1, 2.5 & 10

[Mapantz]

So all of my Airlink values show up on the Weather Link website just fine, however when I set everything up in Cumulus Mx I get nothing, has anyone else had difficulty or have some advice to get me running?


 

Do you have a subscription to Davis? If not, make sure you haven't filled in any of the API boxes.

[oceans311]

I only have the free basic plan, so should I remove my API key and secret?

[Mapantz]

Yep - Not needed.

Check Enable Outdoor AirLink
Check This AirLink has been added as Node to another station

That should be all you need.

[oceans311]

Any other thoughts?  I do not have to have a Weather Link Live system or should it work with the old Weather Link that plugs into the back of the console, correct?

[Mapantz]

Weather Link Live is irrelevant. The AirLink is a standalone device which CMX will pick up. You may need to restart CMX..

[PaulMy]

I have one AirLink and two separate CumulusMX installs:

One using WiFiLogger and have Extra sensor settings Davis Airlink;
API key entered
API secret entered
Outdoor Airlink enabled
IP address entered (AirLink IP address)
Station ID entered
Air quality index specified.
This works fine.

The other using the WeatherLink Live and have Extra settings Davis Airlink;
API key and secret not enabled
Outdoor Airlink enabled
IP address entered (AirLink IP address)
Station ID entered
Air quality index specified.
This also works fine.


I am still working on how to display the data, and the CumulusMX WLL is at http://www.komokaweather.com/cumulusmxwll/index.html select Misc. AirQuality
This site may not display most current as having a lot of caching issues...

Enjoy,
Paul


edit: I use the Free Weatherlink.com

[northamptonwx]

With thanks to the Betel, I have now got my AQ page on my website working from WD.

https://www.northamptonweather.org.uk/weather28/index.php?p=airQualityUK&lang=en#data-area

Unless anyone can see any mistakes.

[the beteljuice]

You don't need the 'junk' below the index table 

[northamptonwx]

You don't need the 'junk' below the index table 

Thanks, 'junk' removed!

[the beteljuice]

Thanks, 'junk' removed!

You may find the following tweaks more suited to your page style.

Code: [Select]

<!-- general main-content holder -->
<div style = "/* background-color: black; */ color: white; font-family: arial; font-size: 20px; /* padding: 8px; */">


<!-- beteljuice 'header' -->
<div style= "/* width: 90%; */ min-width: 650px; margin: auto; color: black; background-color: ghostwhite; padding: 10px; border-radius: 20px;">


<!-- a content holder for data AND key tables -->
<div style= "/* width: 90%; */ min-width: 650px; margin: auto; color: black; background-color: ghostwhite; padding: 10px; border-radius: 20px; font-family: arial;">


[northamptonwx]

You may find the following tweaks more suited to your page style.

Thanks, incorporated, yes it does make it sharper

all hale the Betel!

[Matt.j5b]

I have got my Air Link and I am figuring out getting power for the unit.

The cable is rather short for me to reach the power I can access. I was thinking of using a DC extension cable, though I haven't been able to find any cable here in Australia that would has the small plug for the power jack. I can get a extension cable easily for a 2.1 mm or 2.5 mm pin, but not a cable with a smaller pin.

I suppose I could instead extend the USB end of the cable instead.

Any idea please?

[northamptonwx]

I was looking at using a solar panel into a solar controller with USB, connected to a 7.5Ah battery. Got all the kit, just need to find the time to put it together and test it. Worried about the amount of sun we get here in the winter.

[josecmorales]

I have got my Air Link and I am figuring out getting power for the unit.

The cable is rather short for me to reach the power I can access. I was thinking of using a DC extension cable, though I haven't been able to find any cable here in Australia that would has the small plug for the power jack. I can get a extension cable easily for a 2.1 mm or 2.5 mm pin, but not a cable with a smaller pin.

I suppose I could instead extend the USB end of the cable instead.

Any idea please?

Same problem here.

Does anyone knows wich port use airlink to send data?

[fkapp]

What about a cable like this?
https://www.amazon.com/dp/B009GUMXQE/ref=cm_sw_r_u_apa_fabc_4SS1FbDW4S978

For a 40 ft run would voltage drop become a concern ?

[josecmorales]

How i can get json from weatherlink.com of the airlink? why? i want to feed others websites, like https://aqicn.org/data-feed/

[hmderek]

How i can get json from weatherlink.com of the airlink? why? i want to feed others websites, like https://aqicn.org/data-feed/

You might consider just querying the AirLink directly?

[josecmorales]

How i can get json from weatherlink.com of the airlink? why? i want to feed others websites, like https://aqicn.org/data-feed/

You might consider just querying the AirLink directly?

Yes i did it, through http://<airlink-ip-address-here>/v1/current_conditions but is local, i dont know how to try this on web.

[mcrossley]

How i can get json from weatherlink.com of the airlink? why? i want to feed others websites, like https://aqicn.org/data-feed/

It's all here: https://weatherlink.github.io/v2-api/

[hmderek]

How i can get json from weatherlink.com of the airlink? why? i want to feed others websites, like https://aqicn.org/data-feed/

You might consider just querying the AirLink directly?

Yes i did it, through http://<airlink-ip-address-here>/v1/current_conditions but is local, i dont know how to try this on web.

Ah OK, you want to query your AirLink data outside of your local network.

Well, mcrossley posted something, maybe that works.

Otherwise you could consider opening an external port on your router and point it towards your Airlink so you can query it from the net. But I guess going that direction is always a bit iffy.

[MacGarage]

A review was published on December 17, 2020, on TechHive:

https://www.techhive.com/article/3600840/davis-instruments-airlink-review.html

[josecmorales]

How i can get json from weatherlink.com of the airlink? why? i want to feed others websites, like https://aqicn.org/data-feed/

It's all here: https://weatherlink.github.io/v2-api/

Thanks Mark, im trying too hard!, but i dont get it.

I have API Key v2 and API Secret, i made a HMAC Generator but i have a doubt with use of t (which timestamp i need to use?)

[mcrossley]

"t" is the current time in Unix integer format. It has to be within 5 minutes of the current time for the API servers to accept your request.

[josecmorales]

Code: [Select]

{"code":"400","message":"Timestamp out of range: 1608336756"}
 

[mcrossley]

Code: [Select]

{"code":"400","message":"Timestamp out of range: 1608336756"}
 

That timestamp equates to 2020-12-19T06:24:38, so your Unix time generation code is way off, if you generated it around 00:45 when you posted the message. Unix time always uses UTC.

This is all really a separate topic and should be on a new thread.