Arduino Aquaponics Rotary Encoders

Rotary encoders are interesting little devices.  At Iowa Aquaponics, we typically pair them with LCDs and create menus for controllers.  Rotary encoders can be thought of as a potentiometer and push button in one, but the rotary encoder does not have a limit to its rotation like a potentiometer does.  In other words, it can be rotated more than 360 degrees which allows you to create complex menus you can navigate with a single rotary encoder.

Rotary encoder

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