Espruino WiFi & MDBT42Q

Hi everyone,
I would like to create a bluetooth notification system,
by serial connection of an Espruino WiFi (connected to the internet) to an MDBT42Q.

When I unplug them from the Web IDE console and power them on batteries (charged)
MDBT42Q gives me no feedback ...

I think there is a problem with serial communication,
I have tested them separately and have never given me hardware / software problems

Could you help me understand where I'm wrong?

// Espruino WiFi
// Web IDE > reset(true);

Serial1.setup(9600, {rx: B7, tx: B6});
LED2.write(0);
var WIFI_NAME = "NAME";
var WIFI_OPTIONS = {password : "PASSWORD"};
var wifi;

function getString() {
  require("http").get("http://www.pur3.co.­uk/hello.txt", function(res) {
    var doc = "";
    res.on('data', function(d) { 
      doc += d;
    }); // data
    res.on('close', function(d) {
      doc = doc.substring(0, 5); // Hello
      Serial1.println(doc);
      LED2.write(1);
    }); // close
  }); // get
};

function onInit() {
  clearInterval();
  wifi = require("Wifi");
  wifi.connect(WIFI_NAME, WIFI_OPTIONS, function(err) {
      if (err) throw err;
      setInterval(getString, 30000);
      getString();
  });
};

// Web IDE > save();
// Web IDE > disconnect
// Connected to battery

// MDBT42Q
// Web IDE > reset(true);

global.LED2 = D2;

function updateBT(wifi) {
   var data = E.toString(wifi);
   data = data.toLowerCase();  // hello
   if(data == "hello"){
      global.LED2.write(1);
      NRF.setAdvertising({}, {
         name: "TEST",
         manufacturer: 0x590,
         manufacturerData: data,
         showName: true
      });
   }
   else{};
};

function onInit() {
   var cmd = "";
   Serial1.setup(9600, {rx: D8, tx: D6});
   Serial1.on('data', function (wifi) {
      global.LED2.write(0);
      cmd += wifi;
      var idx = cmd.indexOf("\r");
      while (idx >= 0) {
         var line = cmd.substr(0, idx);
         cmd = cmd.substr(idx + 1);
         clearInterval();
         setInterval(updateBT, 15000, line);
         updateBT(line);
         idx = cmd.indexOf("\r");
      };
  });
};

// Web IDE > save();
// Web IDE > disconnect
// Connected to battery

// Espruino WiFi > LED green (Hello)
// MDBT42Q > ???

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