20Pcs KY-040 Rotary Decoder Encoder Module Geekcreit for Arduino - products that work with official Arduino boardsDescription: The rotary encoder is used to measure the speed and with PWM technology can achieve rapid speed devicesWith fixed bolt hole for easy installationGreat for DIY projectSpecification: Model: KY 040Working voltage: 5VMaterial: PCB + BrassWeight: 10gSize: 32 x 19 x 30mmPackage included: 20 x KY 040 rotary decoder module ,,
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20Pcs KY-040 Rotary Decoder Encoder Module Geekcreit for Arduino - products that work with official Arduino boards