Aquarium Auto Refill With Arduino

This Arduino Pump Tutorial shows a simple example of how to use a float switch and RobotGeek Pumping Station to refill a reservoir once the level gets too low. For our example we use a small aquarium, but this same project could be used for pet dishes, water fountains, or any other number of similar applications. The Pumping Station is a RobotGeek kit which packages a small liquid pump and relay. To operate a pump using an Arduino microcontroller you need a relay to switch on and off a separate power supply.”

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