Programmable digital irrigation controller

Abstract From the Canadian patent

A digital system for automatically controlling a plurality of irrigation valve stations provides a programmable counter for each station to determine the on-time for each valve. The counters are selected by switches to be part of a sequence, and a number of repeated cycles of the sequence are obtained with a programmable cycle counter. The intervals between each of repeated cycles are controlled by a programmable interval counter. The entire sequence is initiated either at a preselected time of day or by a demand sensor.