Pololu Magnetic Encoder Pair Kit with Top-Entry Connector for Mini Plastic Gearmotor, 12 CPR, 2.7-18V

This versatile kit features dual-channel Hall effect sensor boards and 6-pole magnetic discs, designed to provide quadrature encoding for mini plastic gearmotors. Offering a resolution of 12 counts per revolution, this compact solution fits snugly within the motor's dimensions, extending only 5.5 mm on one side. With a voltage range of 2.7V to 18V, it is suitable for various applications.

Perfect for robotics and automation projects, this encoder kit allows precise control and monitoring of motor positions. By multiplying the gear ratio by 12, users can calculate the counts per revolution of the gearbox output shaft, providing the accuracy needed for complex tasks.

The top-entry, 6-pin male JST SH-type connector with a 1 mm pitch ensures easy integration with existing systems. This design supports both single-ended and double-ended cable options, offering flexibility in setup and installation. The double-ended cables, in particular, can be paired with JST SH-style connector breakout boards for straightforward connectivity to solderless breadboards.

Installation is straightforward: the encoder board is soldered directly to the motor's back, with the motor's back shaft fitting through the circuit board's center hole. This alignment ensures consistent performance, while the built-in hysteresis in the sensors' comparators prevents false signals when the motor stops near transition points.

Compared to older versions, this module includes a convenient connector for removable cables, enhancing its usability without altering the fundamental schematic or electrical performance. The improved design maintains compatibility with previous models while offering a lower minimum operating voltage.