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5880-ADA I2C STEMMA QT / Qwiic Rotary Encoder Breakout with Encoder
US$12.69
5880-ADA I2C STEMMA QT / Qwiic Rotary Encoder Breakout with Encoder
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SENS-AS5600 Encoder Module Magnetic Induction Angle Measurement Sensor, 12-bit
US$4.50
This is a non-contact and no rotation angle limitation Encoder Module Magnetic Induction Angle Measurement Sensor, 12-bit which comes with a variety of output modes IIC, PWM and voltage.
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4991-ADA Adafruit I2C Stemma QT Rotary Encoder Breakout with NeoPixel - STEMMA QT / Qwiic
US$9.05
This Stemma QT breakout makes all that frustration go away - solder in any 'standard' PEC11-pinout rotary encoder with or without a push-switch. The onboard microcontroller is programmed with our seesaw firmware and will track all pulses and pins for you and then save the incremental value for querying at any time over I2C. Plug it in with a Stemma QT cable for instant rotary goodness, with any kind of microcontroller from an Arduino UNO up to a Raspberry Pi.
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JGA25-370-E DC Motor Hall Effect Speed Encoder
US$8.14
JGA25-370-E DC Motor Hall Effect Speed Encoder This hall effect encoder can be used as a replacement part for our JGA25-370 DC motor series. It can also...
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Magnetic Encoder Pair Kit with Top-Entry Connector for Micro Metal Gearmotors, 12 CPR, 2.7-18V
US$11.13
Add quadrature encoders to your micro metal gearmotors (extended back shaft version required) with this kit that uses a magnetic disc and hall effect sensors to provide 12 counts per revolution of the motor shaft. The sensors operate from 2.7 V to 18 V and provide digital outputs that can be connected directly to a microcontroller or other digital circuit.
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Magnetic Encoder Pair Kit with Side-Entry Connector for Micro Metal Gearmotors, 12 CPR, 2.7-18V
US$11.13
Add quadrature encoders to your micro metal gearmotors (extended back shaft version required) with this kit that uses a magnetic disc and hall effect sensors to provide 12 counts per revolution of the motor shaft. The sensors operate from 2.7 V to 18 V and provide digital outputs that can be connected directly to a microcontroller or other digital circuit.
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SENS-H206 H206 Opto-coupler Speed Measuring and Counting Sensor
US$4.89
This is a wide voltage range, high resolution, responsive, digital output speed module. It is capable of measuring the rotational speed of the provided wheel accurately and rapidly. It is ideal for applications where one wants to get the rpm of a certain motor. It includes a wheel with slots around the edges that allows the photo-electric sensor to measure the motor speed.
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MOT-E-01 Plastic Incremental Encoder for DC motors
US$1.81
This is a plastic encoder designed to fit on our magician chassis motors or any of the products shown below in related products! This is basically a plastic circle that has 20 slits for light to pass through, the encoder works like any other incremental encoder. The incremental encoder consists of a photocell arrangement as a coded disk with evenly spaced dark and transparent segments on its surface. The disk rotates or moves past the light source generating a stream of square wave pulses that determine the angular position of the shaft.
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1523-POLOLU Magnetic Encoder Pair Kit for Mini Plastic Gearmotors, 12 CPR, 2.7-18V
US$12.53
Add quadrature encoders to your mini plastic gearmotors (extended back shaft version required) with this kit that uses a magnetic disc and Hall effect sensors to provide 12 counts per revolution of the motor shaft. The sensors operate from 2.7 V to 18 V and provide digital outputs that can be connected directly to a microcontroller or other digital circuit. This module is compatible with all of the dual-shaft mini plastic gearmotors we carry.
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2599-POLOLU Magnetic Encoder Disc for Micro Metal Gearmotors, 12 CPR
US$0.97
These magnetic discs can be used with our micro metal gearmotors with extended motor shafts as part of a quadrature encoder system that offers 12 counts per revolution. Appropriate Hall Effect sensors, such as those in our magnetic encoder pair kits, are required to complete the system.
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3081-POLOLU Magnetic Encoder Pair Kit for Micro Metal Gearmotors, 12 CPR, 2.7-18V (HPCB compatible)
US$12.53
Add quadrature encoders to your micro metal gearmotors (extended back shaft version required) with this kit that uses a magnetic disc and hall effect sensors to provide 12 counts per revolution of the motor shaft. The sensors operate from 2.7 V to 18 V and provide digital outputs that can be connected directly to a microcontroller or other digital circuit. This module is compatible with all of the dual-shaft micro metal gearmotors we carry, including the HPCB versions.
Delivery within 2-3 weeks
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2590-POLOLU Optical Encoder Pair Kit for Micro Metal Gearmotors, 5V
US$13.58
Add quadrature encoders to your LP, MP, or HP micro metal gearmotors (extended back shaft version required) with this kit consisting of two sensor boards, two 3-tooth encoder wheels, and two 5-tooth encoder wheels. The installed system does not exceed the 12 mm × 10 mm cross section of the motors and extends only 5 mm beyond the plastic motor end cap. The 3-tooth wheel provides 12 counts per revolution; using the 5-tooth wheel yields 20 counts per revolution. This version is intended for use at 5 V.
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2591-POLOLU Optical Encoder Pair Kit for Micro Metal Gearmotors, 3.3V
US$13.58
Add quadrature encoders to your LP, MP, or HP micro metal gearmotors (extended back shaft version required) with this kit consisting of two sensor boards, two 3-tooth encoder wheels, and two 5-tooth encoder wheels. The installed system does not exceed the 12 mm × 10 mm cross section of the motors and extends only 5 mm beyond the plastic motor end cap. The 3-tooth wheel provides 12 counts per revolution; using the 5-tooth wheel yields 20 counts per revolution. This version is intended for use at 3.3 V.
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SEN0038 Wheel Encoders for DFRobot 3PA and 4WD Rovers
SEN0038 Wheel Encoders for DFRobot 3PA and 4WD Rovers
US$23.73

This encoders are designed for DFRobot 3PA and AWD Rovers. It can give you the rotation degree of the wheels. Encoder uses non-contact method to convert the angular displacement signals. Best fit with Micro DC Geared Motor. It includes encoders, plastic tube, paper-mediated gasket etc.

Delivery within 2-3 weeks
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1217-POLOLU Encoder for Pololu Wheel 42x19mm
1217-POLOLU Encoder for Pololu Wheel 42x19mm
US$20.93
This quadrature encoder works with our micro metal gearmotors, 42×19mm wheel, and extended bracket to measure the rotation speed and direction of the wheel. 
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