Espruino PicoでDS18B28で気温測ったのをESP8266-WROOM-2でMQTTしてみた

espruino_pico_esp8266_ds18b20_mqtt.js

var temp_message = null;

var ow = new OneWire(B1);
var sensor = require("DS18B20").connect(ow);
setInterval(function() {
  console.log(sensor.getTemp());
  temp_message = sensor.getTemp();
}, 1000);

var config = {
  wifiSSID: '[SSID]',
  wifiKey: '[PASSWORD]',
  mqttHost: '[MQTT HOST IP]'
};

var mqtt = require("MQTT").create(config.mqttHost);
var wifi;

mqtt.on('connected', function() {
  console.log('mqtt connected');
  var topic = "test/espruino";
  setInterval(function() {
    var message = temp_message.toString();
    if(!message) message = 'NULL';
    mqtt.publish(topic, message);
  }, 2000);
});

// main
function main(){
  // WIFI
  Serial1.setup(115200, { rx: B7, tx : B6 });
  wifi = require("ESP8266WiFi_0v25").connect(Serial1, function(err) {
    wifi.reset(function(err) {
      if (err) throw err;
      wifi.connect( config.wifiSSID , config.wifiKey, function (err) { 
        if (err) throw err;
        console.log("Connected");
        mqtt.connect();
      });
    });
  });
}

main();