title: Connect Unity Game with [ Arduino + Bluetooth module (HC‐05) ] Or ESP32
body: <p>I want to connect my <strong>Unity 3D Game</strong> with <strong>Micro-controller</strong> Like <strong>Arduino</strong> through <strong>Bluetooth</strong> and for that I'm using a <strong>(HC‐05) Bluetooth module.</strong></p>
  <p>And for that there is one plugin named <strong>Arduino Bluetooth Plugin</strong> <a href="https://assetstore.unity.com/packages/tools/input-management/arduino-bluetooth-plugin-98960" rel="nofollow noreferrer">Link</a> in the asset Store.
  And <strong>Charge is 19$.</strong></p>
  <p>Is there any other way to do this by just using <strong>free functionality</strong> and <strong>Coding</strong>?</p>