Communication between micro controller unit and touch panel based on Modbus protocol

GU Bofei，ZHAO Weijie， WU Kaihua

(College of Life Information Science and Instrument Engineering，Hangzhou Dianzi University，Hangzhou 310018，China)

Abstract: In order to solve the problems of human computer interaction of automatiac irrigation systeam，a  kind of hunman computer interaction system was designed using touch panel as interfaceThe communication method was studied mainly between touch panel and micro controller unit for the automatic irrigation system which was powered by solar energy Based on Modbus potocol,touch panel was used as host to sent data acquisition or operation request message and micro controller unit was used as slave to receive the request, judge the request and return the data and state or execute corresponding actionThe research results show that the method solves the data real time communication between touch panel and micro controller unit for the automatic irrigation system which is powered by solar energy

Key words: Modbus protocol；micro controller unit；touch panel；automatic irrigation； solar energy