| 摘要 |
<p>An electronic control unit for control of solenoid valves in watering systems is described, comprising a plurality of knobs (101) for the selection and the time-setting of respective solenoid valves (102) in a watering cycle, and at least one additional period knob (104) for defining the frequency of activation of said solenoid valves (102) in said watering cycle.</p> |
