climate-audio.js

var tessel = require('tessel');
var audio = require('audio-vs1053b').use(tessel.port['A']);
var climate = require('climate-si7020').use(tessel.port['B']);

var chunks = [];

// When we get data, push it into our array
audio.on('data', function(data) {
  chunks.push(data);
});

// Wait for the module to connect
audio.on('ready', function() {
  console.log('Hold the config button to record...');
  // When the config button is pressed, start recording
  tessel.button.once('press', startRecording);
});

function startRecording() {
  // Tell the audio module to start recording
  audio.startRecording('voice', function() {
    console.log('Recording...');
    // Once the button is released, stop recording
    tessel.button.once('release', stopRecording);
  });
}


function stopRecording() {
  // Tell the audio module to stop recording
  console.log('stopping the recording...');
  audio.stopRecording(function() {
    console.log('Playing it back...');
    readTemperatureLoop();
    // Concat the data and play it
    /*audio.play(Buffer.concat(chunks), function(err) {
      // When we're done playing, clear recordings
      chunks = [];
      console.log('Hold the config button to record...');
      // Wait for a button press again
    });*/
  });
}


function readTemperatureLoop() {

  console.log('Connected to si7020');

  // Loop forever
  setImmediate(function loop () {
    climate.readTemperature('f', function (err, tempFahrenheit) {
      climate.readHumidity(function (err, humid) {
        var tempCelsius = (tempFahrenheit - 30) / 2;
        console.log('Degrees:', tempCelsius.toFixed(4) + 'C', 'Humidity:', humid.toFixed(4) + '%RH');

        if (tempCelsius > 26) {
          audio.play(Buffer.concat(chunks), function(err) {
            if (err) console.log('error', err);
          });
        }

        setTimeout(loop, 300);
      });
    });
  });

}

/*climate.on('ready', function () {
  console.log('Connected to si7020');

  // Loop forever
  setImmediate(function loop () {
    climate.readTemperature('f', function (err, tempFahrenheit) {
      climate.readHumidity(function (err, humid) {
        var tempCelsius = (tempFahrenheit - 30) / 2;
        console.log('Degrees:', tempCelsius.toFixed(4) + 'C', 'Humidity:', humid.toFixed(4) + '%RH');
        setTimeout(loop, 300);
      });
    });
  });
});*/

climate.on('error', function(err) {
  console.log('climate: error connecting module', err);
});



// If there is an error, report it
audio.on('error', function(err) {
  console.log('audio: error connecting module', err);
});