title: Simple serial point-to-point communication protocol ---- sample code
body: <p>I had read this:
  <a href="https://stackoverflow.com/questions/815758/simple-serial-point-to-point-communication-protocol">Simple serial point-to-point communication protocol</a></p>
  
  <p>and I'm doing the same thing, and I don't want to reinvent wheel...</p>
  
  <p>are there any API or sample code?</p>
  
  <p>PS:
  code in C/C++, python...</p>