dht DHT;

#define DHT11_PIN 7
float tem [4];

void setup() {
  Serial.begin(9600);
  pinMode(12, OUTPUT);
}

void loop() {
  int chk = DHT.read11(DHT11_PIN);
  int val = (int)(DHT.temperature);
  Serial.println(val);
  delay(600000);
}

var fs = require('fs')
var logger = fs.createWriteStream('/data/Temperature/temperature.csv', {
  flags: 'a' // 'a' means appending (old data will be preserved)
})

var SerialPort = require("serialport")
var serialPort = new SerialPort("/dev/ttyACM0", {
  baudRate: 9600,
});

serialPort.on("open", function () {
  serialPort.on('data', function(data) {
    var moment = require('moment');
    var dayTime = moment().format('YYYY-MM-DD,hh:mm');
    var val1 = data.toString();
    var val = val1.trim();
    if (val == '') {
      console.log('no data');
    else {
      console.log(val);
      logger.write(dayTime + ',' + val + 'n');
    }
  });
});