using System;

using System.IO;

using System.Text.Json;

using System.Threading.Tasks;

using Newtonsoft.Json;

using System.Collections;

using System.Collections.Generic;

​

public class Program

{

    public static void Main()

    {

        Console.WriteLine("Hello World");

    }

    public void LoadJson()

    {   

        using (StreamReader r = new StreamReader("file.json"))

        {

            string json = r.ReadToEnd();

            List<Item> items = JsonConvert.DeserializeObject<List<Item>>(json);

        }

    }

​

    public class Item

    {

        public int millis;

        public string stamp;

        public DateTime datetime;

        public string light;

        public float temp;

        public float vcc;

    }

}