GATT service with Ruuvitag

Hi there!

I'm trying to set up a GATT service on my ruuvitag. I have successfully installed the firmware following https://www.espruino.com/Ruuvitag and I can talk with the device and upload code 🎉

I've got the following code running:

var Ruuvitag = require("Ruuvitag");

NRF.setServices({
  0xff20: {
    0xff21: {
      value: Math.round(Ruuvitag.getEnvData().temp),
      readable: true,
      notify: true
    }
  }
});
setInterval(function () {
  NRF.updateServices({
    0xff20: {
      0xff21: {
        value: Math.round(Ruuvitag.getEnvData().temp),
        notify: true
      }
    }
  });
}, 1000);

What I am wondering however, is how I can connect to this service using a node.js application. I've been trying the espurino module but can't figure out how to use it to "scan" for GATT services. Using the bleat module I can find other BLE devices, but not my ruuvitag running espurino.

Any ideas what I might be getting wrong?

NB! I'm new to this whole BLE and GATT stuff, so I might be confused about a few things 😝