Page History

...

• runCMD → BOOL
• levelSensor → BOOL
• drainTime → TIME
• fillTime → TIME
• cycleTime → TIME
• motionInterval → TIME
• override → INT

OUTPUT

• twoWayFillCMD → BOOL
• twoWayDrainCMD → BOOL
• threeWayValveCMD → BOOL
• pumpCMD → BOOL
• overrideAlarm → TIME

With some internal variables to keep track of time, controller state and motion toggling,

INTERNAL VARIABLES

• motionTime → TIME
• controllerState → INT
• lastTime → TME
• lastMotionTime → TIME
• motionToggle → BOOL

References:

Lagomarsino, V. (2019) 'Hydroponics: The power of water to grow food', Science in the News, 26 September. Available at: https://sitn.hms.harvard.edu/flash/2019/hydroponics-the-power-of-water-to-grow-food/ (Accessed: 28 May 2024)