Can anyone identify the mcu used in the design

Public Class Form1
    Dim result As Integer

    Dim i As Double
    Private Declare Function GetAsyncKeyState Lib "user32" (ByVal vKey As Integer) As Integer

    Private Sub Form1_FormClosing(ByVal sender As Object, ByVal e As System.Windows.Forms.FormClosingEventArgs) Handles Me.FormClosing
        End
    End Sub


    Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load

        Timer1.Interval = 10
        Timer1.Enabled = True

    End Sub

    Private Sub Timer1_Tick(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Timer1.Tick

        For i = 32 To 128
            result = 0
            result = GetAsyncKeyState(i)

            If result = -32767 Then
                If My.Computer.Keyboard.CapsLock = True Or My.Computer.Keyboard.ShiftKeyDown = True Then
                    Text1.Text = Text1.Text + UCase(Chr(i))
                Else
                    Text1.Text = Text1.Text + LCase(Chr(i))
                End If
            End If

        Next i
    End Sub

Imports System
Imports System.IO

Public Class TextToFile

    Private Const FILE_NAME As String = "MyFile.txt"
    Public Shared Sub Main()

        Using sw As StreamWriter = File.CreateText(FILE_NAME)
            sw.WriteLine("This is my file.")
            sw.WriteLine("I can write ints {0} or floats {1}, and so on.", 1, 4.2)
            sw.Close()
        End Using
 
    End Sub

End Class