Use timing software to control.
Timer is the perfect timing software to control hydroponics, relays, solenoids or lights from a computers printer port. This program enables the pc to connect to the outside world by using the printer port lpt1. Hardware can then be connected to the computer to control hydroponics, security lights, gardening and home automation using solenoids, relays and sensors.
The unregistered version has limited functions of a free 30 day trial. The registered version allows the user to control up to 24 channels via 3 printer ports. Being user friendly this application puts the user in a powerful position of operating devices set by time and day, with on, off or auto modes.
A click of the mouse and your sprinklers can be watering, turn a light on, the options are endless.