Design of a programmable rainfall simulator

A programmable controller (PIC) was designed to provide a greater flexibility in rainfall simulator research. The PIC controlled the rainfall simulator using a process control board employing a microprocessor. This control board provided programmable capability previously unavailable in field research. Software to control the system was developed using assembly language and a microprocessor emulator. This software provided user-friendly interaction and the ability for variations in rainfall intensity and storm duration in simulated rainfall studies.