aidex.js

var serial = "xxxxxx"; //<-- Put serial number to pair here
var device = "";
var neopixel = require("neopixel");
var handle=0 ;
var WIFI_NAME = "xx";
var WIFI_OPTIONS = { password : "xx" };
var has_cleared=false;
var wifi = require("Wifi");
wifi.connect(WIFI_NAME, WIFI_OPTIONS, function(err) {
  if (err) {
    console.log("Connection error: "+err);
    return;
  }
  console.log("Connected!");

});

function scanForDevices() {
  NRF.findDevices(function(devs) {
    devs.forEach(function(dev) {
      dt = dev.manufacturerData;
      v = new DataView(new Uint8Array(dt,0,12).buffer);
      
      epoch=946684800+(3*60*60); //off by 8hrs
      timestamp = new Date((v.getUint32(2,true)+epoch)*1000); //Date [2-5]
      age = parseInt(dt[1] /6); //Sample age [1]
      console.log("SAMPLE AGE:"+dt[1]);
      sens_no = dt[8]; //Sensor count
      phase = dt[9]; //State?

      
       // Running
        life = 300 * (v.getUint16(6,true)); //Age of sensor
        span = 14 - life / (60 * 60 * 24);
        
        unk = dt[11];    //unknown?
        glu = dt[10]/10; //gluc mmol
      mg = glu*18;

        if (phase == 4) { // countdown phase
          time = dt[10];
          console.log("Warming " + (59 - time) + " mins");
        }
        
          if (phase == 0xc) { // Stabilising
            run = "stabilizing";
          }
    
      if(glu>=10){//grb
/*
         if(handle!=0){
       clearInterval(handle);
    handle=0;
    }
        handle = setInterval("var l;neopixel.write(48, [0, l=!l?255:0, l?255:0]);",500);*/
      }else if(glu<=3.5){
    /*if(handle!=0){
       clearInterval(handle);
    handle=0;
    }
   handle =  setInterval("var l;neopixel.write(48, [0, l=!l?255:0, 0]);",500);*/
      }else{
    
        neopixel.write(48, [0, 0, 0]);
      }
          console.log(dt);
          console.log("Date: " + timestamp.toISOString() +
                      " Days: " + parseInt(span) +
                      " Gluc: " + glu +
                      " Age: " + age);
        
    });
  }, {timeout: 2000, //Check for a couple of seconds
     filters: [{id: device}]}); 
}
NRF.setScan(function(d) {
//require("neopixel").write(D14, [50,0,0,0]);
  if (d.id=="xx:xx:xx:xx:xx:xx public") //Is it a transmitter
  {

    var sens = new Uint8Array(d.manufacturerData, 0, 6);
    if (1 ) // Find serial
    {
      device=d.id;
      console.log("Device is: "+ device+" ser:"+sens);
       

     scanForDevices();
    }
  }
}, { active: true } );