ambient-calibration.js

require('tesselate') ({
  modules: {
    A: ['ambient-attx4', 'ambientL'],
    C: ['ambient-attx4', 'ambientR']
  },
}, function(tessel, modules) {
  var left = modules.ambientL;
  var right = modules.ambientR;
  console.log('For left module calibration:');
  sample(left, function (leftData) {
    console.log('For right module calibration:');
    sample(right, function (rightData) {
      console.log('Left:', leftData, 'avg:', average(leftData));
      console.log('Right:', rightData, 'avg:', average(rightData));
      console.log('Set left trigger to', average(leftData));
      console.log('Set right trigger to', average(rightData));
      process.exit();
    });
  });
});

function sample (module, callback) {
  console.log('Position noisemaker (snapping fingers, clapper, etc.) at the distance from the module that you want to trigger from.');
  console.log('Make the noise four times.');
  var collector = [];
  module.setSoundTrigger(0.025);
  module.on('sound-trigger', function(data) {
    module.clearSoundTrigger();
    if (collector.length < 3) {
      console.log('Sample collected.');
      collector.push(data);
      setTimeout(function () {
        module.setSoundTrigger(0.1);
      }, 250);
    } else {
      console.log('Sampling complete.');
      callback(collector);
    }
  });
}

function average (arr) {
  var sum = 0;
  for (var i in arr) {
    sum += arr[i];
  }
  return sum / arr.length;
}