#include <Mouse.h>

#define AIN A0

int value, pre;

void setup()
{
  //マウス初期化
  Mouse.begin();
  
  pre = 0;
}

void loop()
{
  value = analogRead(AIN);
  value &= 0xFFF8;
  if(value != pre)
  {
    Mouse.move(value - pre, 0, 0);
    pre = value;
  }
  delay(50);
}