Using Photon for Wifi-based GPS, need help to POST JSON

General
1

Hi, I’m brand new to Particle, it seems really awesome. I’ve noticed that Photon can do Webhooks, but can also POST raw JSON data. I’m trying to figure out which (if either) I can use with FIND which can use WiFi fingerprints to determine positions indoors (full disclosure, I’m the developer of FIND).

Basically I determined the WiFi SSIDs and RSSI values using

WiFiAccessPoint aps[20];
int found = WiFi.scan(aps, 20);

and now I want to send the aps as a JSON in the following format to http://ml.internalpositioning.com/track:

{
   "group":"some group",
   "username":"some user",
   "location":"some place",
   "time":12309123,
   "wifi-fingerprint":[
      {
         "mac":"AA:AA:AA:AA:AA:AA",
         "rssi":-45
      },
      {
         "mac":"BB:BB:BB:BB:BB:BB",
         "rssi":-55
      }
   ]
}

But as of yet I’m totally lost as how to do this. Any help would be greatly appreciated!

2

There’s a HTTP library available in the Web IDE which might be able to do this. There should be an example included. Take a look :smile:
Using the community search should pop up quite a few topics as well.

3

Awesome! Thanks, I think I see how to do it!

1 Like
4

I got it working. I posted the code here: https://github.com/schollz/find/issues/73 if anyone is interested. Photon is so cool!

1 Like