Use Distance Sensor with Unity3D and Raspberry Pi

[21n0]

Hi

So I set up Mono for my Raspberry Pi that I can use C#.
I'm converting a analog signal to a digital signal with a MCP3008. Now I want to use this signal in Unity3D to scale an Object.

This is my script actually:

using System;
using System.Collections.Generic;
using System.Text;
using System.Threading;
using RaspberryPiDotNet;
 
namespace RPi_Projekt4
{
    class Program
    {
        static void Main(string[] args)
        {
            //# set up the SPI interface pins
            //# SPI port on the ADC to the Cobbler
            GPIOMem SPICLK = new GPIOMem(GPIOPins.Pin_P1_18, GPIODirection.Out);
            GPIOMem SPIMISO = new GPIOMem(GPIOPins.Pin_P1_23, GPIODirection.In);
            GPIOMem SPIMOSI = new GPIOMem(GPIOPins.Pin_P1_24, GPIODirection.Out);
            GPIOMem SPICS = new GPIOMem(GPIOPins.Pin_P1_25, GPIODirection.Out);
 
             int adcnum = 0;
            double read_adc0 = 0.0;
 
            while (true)
            {
                MCP3008 MCP3008 = new MCP3008(adcnum, SPICLK, SPIMOSI, SPIMISO, SPICS);
                // read the analog pin 
                read_adc0 = MCP3008.AnalogToDigital;
                double millivolts = Convert.ToDouble(read_adc0) * (3300.0 / 1024);
 
                double volts = (Convert.ToDouble(read_adc0) / 1024.0f) * 3.3f;
 
 
 
#if DEBUG
                System.Console.WriteLine("MCP3008_Channel: " + adcnum);
                System.Console.WriteLine("read_adc0: " + read_adc0);
                System.Console.WriteLine("millivolts: " + (float)millivolts);
                System.Console.WriteLine("distance: " + (float)distance);
                System.Console.WriteLine("volts: " + (float)volts);
 
#endif
                Thread.Sleep(3000);
            }
        }
    }
}
 

So I'm stuck after the conversion of the signal and the conversion in volts. I want to use the volts to scale the object in Unity 3D but I don't know how.

Can someone help please.