Debug Bluetooth communication?

Hello, I try to debug my source code for creating a bluetooth communication. The sourcecode looks like this:

NRF.connect(addr).then(function(d) {
  device = d;
  return d.getPrimaryService("service_uuid");
}).then(function(s) {
  LED2.set();
  console.log("Service ",s);
  return s.getCharacteristic("characteristic_uuid");
}).then(function(c) {
  return c.readValue();
}).then(function(d) {
  console.log("Got:", JSON.stringify(d.buffer));
  device.disconnect();
}).catch(function() {
  console.log("Something's broken.");
LED1.set();
});

I know that the example above is not valid.
My general question: How can I debug a bluetooth communication? The problem:
I connect the Puck with Windows to transmit the program to the puck. For establishing a connection from another device (e.g. Android Smartphone), I have to disconnect the Puck from Windows to be able to connect the Android Smartphone with the Puck. If I am disconnected, I will not see the console output on my computer. So how can I see the console result after disconnecting the puck? Could it be stored on the device?