Water control project
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water control project
Automatically control the level of the pond by using a lawn sprinkler relay to inject water into the pond when it falls below a critical level. Water gets added while the pumps are on until it reaches the max level then it goes off. The water level sensors are just thermostat wire. When immersed the resistance decreases to about 50K. each sensor goes to a comparator and from there the outputs go to a D flip flop whose memory flips in a way that creates the hysteresis needed.
Pick up my phone, go to a web site, have there be a series of buttons on, off, 10, 20, 30, 60.
The buttons could be from a client side jquery-mobile page. Timing would seem suited to the server. Server would send an on message and start a timer. After the time elapsed it would send an off message. Client would poll server to see what the status is and the time remaining.
version 1
version 2
Click the button pump goes on in pond.
- send '1' to arduino, to tun on relay
- send '0' to arduino to turn off device
