GPS position from Node Red shown on Map Widget

Data management
1

Hi,

I’m sending GPS position from Node Red to Ubidots. But the position don’t show in the Map Widget. How do I get the position into the Map?

The GPS-data comes from Signal K via Node Red to Ubidots, using the Ubidots node.

image
image1707×383 36.9 KB

image
image1366×880 51.9 KB

I appreciate all help!

Regards
Kristian

2

Hello @kjenset,

I hope this message finds you well.

Here is a complete guide to configure your GPS Position correctly.

One option to achieve that, is to create a single variable called position and sending the respective latitude and longitude into the context of the variable.

image
image825×352 16 KB

So, you need to modify the msg.payload for the following JSON:

msg.payload = {
    position = {
        "value": 1,
        "context": {
            "lat": msg.payload.latitude,
            "lng": msg.payload.longitude
        }
    }
}

Then, you need to change the location of your device for Auto option:

image

I’ll be attentive if you need further assistance.

Alejandro

3

Hi,

Thanx for your quick respons!
When I use your code I got an error.

image
image1514×427 31.5 KB

Kristian

4

I apologize, that’s a big error from myself. This is a JSON file, so we need to write “:” instead of “=”.

This is the full correct code.

msg.payload = {
    position: {
        "value": 1,
        "context": {
            "lat": msg.payload.latitude,
            "lng": msg.payload.longitude
        }
    }
}
5

Now the error is gone, but the payload is not passing the function node.
Any idea?

image
image1553×417 37.5 KB

Kristian

6

What do you mean about “passing the function node”?

7

As you can see at the debug, the values from the debug node 5 don’t show, just from the debug node 2. The debug node is atthe front of the function node, and the debug node 5 is after. Also the values don’t been sendt to Ubidots as well.

8

I guess that we forgot to include the return msg; after the msg.payload object.

msg.payload = {
    position: {
        "value": 1,
        "context": {
            "lat": msg.payload.latitude,
            "lng": msg.payload.longitude
        }
    }
}
return msg;
9

Now it’s working!!

I’m so happy. If you travel to norway anytime I will buy you a beer! :slight_smile: :grinning:

Regards
Kristian

10

Jeje, perfect, I will remember that.

Best regards.

Alejandro