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2X Rotary Encoder Sensor Module w/ Pushbutton Switch KY-040 for Arduino AVR DIY
- Item No : 192715888637
- Condition : New
- Brand : Envistia Mall / Keyes
- Seller : envistia
- Current Bid : US $6.89
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* Item Description
- The KY-040 rotary encoder has 20 positions per revolution. Inside the encoder there are two switches. One switch connects pin A to pin C and the other switch connects pin B to C. In each encoder position, both switches are either opened or closed.
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