Add embedded ESP8266 / ESP32 client about find3 HOT 15 CLOSED

Very cool! Maybe you can make a repo for this and I can link to it? That way people could fork / PR.

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@DatanoiseTV Awesome, nice job! I can't wait to try it.

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Was passive scanning ever added? I'd love to setup a few scanners around the house to use either phones or ble beacons for different purposes (perhaps a ble beacon in the car to detect when it's parked in the garage)

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@schollz There you go - https://github.com/DatanoiseTV/esp-find3-client

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Thanks @DatanoiseTV ! Updated in the docs. I'm excited to try out your code!

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Thanks @schollz. I have cleaned up the code a lot and now it works perfectly. It syncs time via NTP and uses ArduinoJson to properly serialise the data. Can you please point me how to submit bluetooth scan results in /track and /learn then I will add BLE scanning to ESP32.

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Cool! I was just thinking about doing that too. Here's the API reference: https://www.internalpositioning.com/doc/api.md#sensor. You can ignore GPS and you can ignore location if you are just doing tracking. Your data will basically just need to look like:

{  
   "d":"DEVICE",
   "f":"FAMILY",
   "t":1520424248897,
   "s":{  
      "bluetooth":{  
         "20:25:64:b7:91:42":-72,
         "20:25:64:b8:06:38":-81,    
      },
      "wifi":{  
         "20:25:64:b7:91:40":-73,
         "70:4d:7b:11:3a:c8":-81,
         "88:d7:f6:a7:2a:4c":-39,
         "8c:0f:6f:e7:2b:78":-42,
         "8c:0f:6f:e7:2b:80":-43,
         "92:0f:6f:e7:2b:80":-43,
         "96:0f:6f:e7:2b:78":-39,
         "9e:0f:6f:e7:2b:80":-43,
         "ac:9e:17:7f:38:a4":-55,
         "dc:fe:07:79:aa:c0":-90,
         "dc:fe:07:79:aa:c3":-89
      }
   }
}

Submit this via POST to /data. If you want to do learning, you use the exact same JSON but also add "l":"LOCATION" to specify the location.

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@schollz Is there any possibility to submit BLE results to /learn and /track as well? ArduinoJson seems to have trouble with nested arrays :(

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@schollz BLE support and other goodies added!

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@DatanoiseTV cool! Did you get over the problem with nested arrays?

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@schollz Yes. All sorted out and BLE added. Using the /data POST endpoint now!

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@schollz I am able to now capture management frames / implement monitor mode on ESP32 for passive scanning. Do I just need the BSSIDs for passive scanning or also the RSSI? What is the request for /passive? Can't see it in the docs.

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@DatanoiseTV Wow!! I didn't know you could do that with an ESP32! That's so cool. You need both the BSSIDs and the RSSI for passive scanning. Although, if you can't get RSSI maybe we could still use it. For passive data you just do POST /passive with similar JSON as before:

{  
   "d":"DEVICE",
   "f":"FAMILY",
   "t":1520424248897,
   "s":{  
      "bluetooth":{  
         "20:25:64:b7:91:42":-72,
         "20:25:64:b8:06:38":-81,    
      },
      "wifi":{  
         "20:25:64:b7:91:40":-73,
         "70:4d:7b:11:3a:c8":-81,
         "88:d7:f6:a7:2a:4c":-39,
         "8c:0f:6f:e7:2b:78":-42,
         "8c:0f:6f:e7:2b:80":-43,
         "92:0f:6f:e7:2b:80":-43,
         "96:0f:6f:e7:2b:78":-39,
         "9e:0f:6f:e7:2b:80":-43,
         "ac:9e:17:7f:38:a4":-55,
         "dc:fe:07:79:aa:c0":-90,
         "dc:fe:07:79:aa:c3":-89
      }
   }
}

When this data enters the server, it will automatically collect these and then "reverse" them (so that the DEVICE is actually the sensor and the sensors are actually the devices).

Note also, the bluetooth data is just scanned as before because bluetooth data is device specific and not router-specific.

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I will look how we can get RSSI in a passive scan.

By the way: Are the "bluetooth" and "wifi" just keywords? Can any extra tag be used? Could we include other sources like LoRa here, as long as it uses a 6 octet MAC address?

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@DatanoiseTV do you have any rough numbers of what you could get in power usage/battery life running this on esp with sleep?

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