RTLS (Real Time Location System) for Arduino

This library allows you to integrate RTLS into your Arduino projects.

It tries to stay hardware-independent, so it would work with:

• WiFi
• Bluetooth
• Zigbee
• Decawave 1000
• ...

At the current state, WiFi is implemented. You can refer to it to implement more hardware.

How to use

The process is made by two steps.

Collect training data

You will load this sketch and more around the space you want to map. You need to collect data for each room/zone you want to recognize.

/**
* Collect RTLS training data
* using WiFi
*/
#include <eloquent_rtls.h>
#include <eloquent_rtls/wifi.h>
#include <eloquent_rtls/collect.h>

using eloq::rtls::Collect;
using eloq::rtls::wifiScanner;

Collect collector(wifiScanner);


/**
 *
 */
void setup() {
    delay(3000);
    Serial.begin(115200);
    Serial.println("__RTLS WIFI__");

    wifiScanner.identifyBySSID();
    // or
    // wifiScanner.identifyByMAC();

    // set lower bound for RSSI
    wifiScanner.discardWeakerThan(-85);

    // print collection instructions
    collector.setup();
}


/**
 *
 */
void loop() {
    // collect data
    collector.loop();
}

Prediction

Once you have your data, go to this webpage and train a classifier (it is done in the cloud, you only have to press a button).

It will generate the required files to perform the inference.

/**
* Collect RTLS training data
* using WiFi
*/
#include <eloquent_rtls.h>
#include <eloquent_rtls/wifi.h>
#include "Classifier.h"
#include "FeaturesConverter.h"

using eloq::rtls::wifiScanner;
using eloq::rtls::FeaturesConverter;

Classifier classifier;
FeaturesConverter converter(wifiScanner, classifier);


/**
 *
 */
void setup() {
    delay(3000);
    Serial.begin(115200);
    Serial.println("__RTLS WIFI__");

    wifiScanner.identifyBySSID();
    // or
    // wifiScanner.identifyByMAC();

    // set lower bound for RSSI
    wifiScanner.discardWeakerThan(-85);

    // print feature vector before predictions
    converter.verbose();

    Serial.println("Move around the mapped space...");
}


/**
 *
 */
void loop() {
    // scan & predict
    Serial.println(converter.predict());
    delay(1000);
}