Increase 5V power output, the output I / O port protection are not afraid of operational errors caused damage! The interface easy to use simple horns seat pitch of 2.54, with 20CM DuPont line, the line can respond to different target sequence, flexible wiring Supports automatic firmware upgrade, the factory has been upgraded to the latest firmware V2.J17.S4; The interface definition directly in the shell marked, clear, convenient and practical；