title: Erase and reset my arduino
body: <p>By some reason, I wrote the code below and upload it into my arduino, and obviously, I forget a delay function in loop method.</p>
  
  <p>So, every time I pin the arduino into my computer, the simulated keyboard is always input something and can not stop.</p>
  
  <p>I want to erase or reset my arduino, but how can I work it?</p>
  
  <p>Type of board is Leonardo Micro Mini.</p>
  
  <pre><code>void setup() {
    // put your setup code here, to run once:
  
  }
  
  void loop() {
    // put your main code here, to run repeatedly:
    Keyboard.print("Hello.");
  }
  </code></pre>