The piezoelectric controller PC0200 adopts high-precision control circuit, which has the characteristics of high precision, high stability, and easy operation. It can accurately control the piezoelectric injection valve for precision dispensing. While meeting the high-precision and stable dispensing, it realizes the dispensing rhythm of rapid production and multi-channel switching function, and realizes a simple parameter configuration mode. Using the switching of the dispensing mode, it can easily achieve dot and line drawing modes, which are suitable for a wide range of dispensing applications.