Rotary Encoder (1 pc)
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Prices updated: 12 Oct 2026
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About this product
A rotary encoder is an input device that converts shaft rotation into electrical signals. It is used in electronics projects to adjust values, navigate menus or set levels. This listing is a single rotary encoder unit. Check the pin count and whether the unit includes a push button before wiring it.
Specifications
- Type
- Rotary encoder
- Quantity
- 1 pc
Frequently asked questions
How do I connect a rotary encoder to an Arduino?
Typical incremental encoders have two signal pins (commonly A and B) and a common pin connected to GND. Connect the signal pins to digital inputs, enable internal pull-ups, and confirm the pinout from the markings or datasheet of your unit.
Do I need a library to read it?
Not always. You can read it with pin-change or external interrupts, or use an encoder library such as the popular Encoder library for Arduino, which handles pulse counting reliably.
