Switching Profiles in Kodi using an NFC Ring

Replace profiles, IP and ring ID with your own values.

Run in a Screen

node whatever.js

var fs = require('fs');
var request = require("request");
var inp = fs.createReadStream("/dev/ttyACM0");
inp.setEncoding('utf8');
var inptext = "";
var XBMCEventClient = require('xbmc-event-client').XBMCEventClient;
var xbmc = new XBMCEventClient('node.js app');
var blob = { "id": 1, "jsonrpc": "2.0", "method": "Profiles.LoadProfile", "params": {"profile":"lydia"}};

var options = {
  method: 'POST',
  uri: 'http://user:pass@127.0.0.1:8080/jsonrpc',
  json: blob
}

xbmc.connect(function(errors, bytes) {
  inp.on('data', function (data) {
    if (errors.length){
      throw errors[0];
    }

    if(data === "."){
      return; // do nothing
    }

    if(data.indexOf("InsertRingUIDHere") !== -1){
      console.log(options.json.params);
      options.json.params.profile = "john";
    }else{
      options.json.params.profile = "lydia";
    }

    request(options, function (error, response, body) {
      console.log("changed to", options.json.params.profile);
      if (!error && response.statusCode == 200) {
        console.log(body.id) // Print the shortened url.
      }
    });

  });
});

Note that I just threw this together as a proof of concept, it needs a bunch of polish! 🙂