read-temperature-twilio.js

var Spark = require("../lib/spark");
var five = require("johnny-five");
var board = new Spark({
  token: process.env.SPARK_TOKEN,
  deviceId: process.env.SPARK_DEVICE_ID
});

//require the Twilio module and create a REST client
var client = require('twilio')(process.env.TWILIO_SID, process.env.TWILIO_AUTH_TOKEN);

board.on("ready", function() {
  console.log("CONNECTED");

  board.analogRead("A7", function(data) {
    //console.log( "A7",  data );
    var voltage = (data * 3.33)/4095;
    var celsius = (voltage - 0.5) * 100;
    //console.log( "celsius: ",  celsius);
    var f = celsius * (9/5) + 32;  // true c to f forumula
    f = f + 29; // hack to get sensor working (add 29 so it is correct)


    console.log( "The temperature is: ", f);

    // I would like to read the temp once and send to sendTemp() for posting to twilio
    // I have 2 ideas:
    // 1) manually like I have here (although it reads multiple times; multiple texts via twilio)
    // 2) child process for sendTemp() call
    // 3) ???

    sendTemp(f);
    process.exit(0);
  });

});

function sendTemp(f) {
  //Send an SMS text message
  client.sendMessage({

    to: process.env.TWILIO_TO_NUM, // Any number Twilio can deliver to
    from: process.env.TWILIO_FROM_NUM, // A number you bought from Twilio and can use for outbound communication
    body: 'Temp is: ' + f // body of the SMS message

  }, function(err, responseData) { //this function is executed when a response is received from Twilio

    console.log('in callback');
    console.log(err);
    if (!err) { // "err" is an error received during the request, if any

      console.log(responseData.from); // outputs "+14506667788"
      console.log(responseData.body); // outputs "word to your mother."
    }
  });
}