I have 6 Valves that I am open and close manually on fix time by miniature toggle switch and repeating this cycle in each 6 Hours from first Valve. Now I want to do this Automatic for fix duration of time that will automatically open and close the valve and after completion of 1 cycle again it have to start from first onwards automatically. and I also want to interface my circuit with computer so I can also able to change the timing for valve open duration if I want to.
so, please can anyone suggest me idea for making circuit for this.
so, please can anyone suggest me idea for making circuit for this.