1.       3D rocker design

2.       Particular Code-study function, and change different instruction itself

3.       Set kinds of protocol and baud rate in RS485

4.       Updating new program function on line

5.       One key to search current protocol and baudrate of control address

6.       All parameter are set by key, fast and aesy

7.       Can control 15pcs sub-keypad at most

8.       LCD Display