text: /*
  * Author: Zion Orent <zorent@ics.com>
  * Copyright (c) 2015 Intel Corporation.
  *
  * This program and the accompanying materials are made available under the
  * terms of the The MIT License which is available at
  * https://opensource.org/licenses/MIT.
  *
  * SPDX-License-Identifier: MIT
  */
  var ht9170_dtmf_lib = require("jsupm_ht9170");
  
  // Instantiate a DTMF decoder
  var dtmf_obj = new ht9170_dtmf_lib.HT9170(12, 11, 10, 9, 8);
  
  // Now we just spin in a loop, sleeping every 100ms, checking to see
  // if a digit is available.  If so, we decode and print the digit,
  // and continue looping.
  var myInterval = setInterval(function()
  {
  	if (dtmf_obj.digitReady())
  	{
  		console.log("Got DTMF code: " + dtmf_obj.decodeDigit());
  		// now spin until digitReady() goes false again
  		while (dtmf.digitReady())
  			;
  	}
  }, 100);
  
  // When exiting: clear interval, and print message
  process.on('SIGINT', function()
  {
    clearInterval(myInterval);
  	dtmf_obj = null;
  	ht9170_dtmf_lib.cleanUp();
  	ht9170_dtmf_lib = null;
  	console.log("Exiting");
  	process.exit(0);
  });
  