Pololu 75:1 Micro Metal Gearmotor HP 6V w/ 12 CPR Encoder, Back Connector

• Pololu 75:1 Micro Metal Gearmotor HP 6V w/ 12 CPR Encoder, Back Connector
• Features 75:1 metal gearbox
• Includes 12 CPR incremental encoder
• Operates with 6 V voltage
• Supports bidirectional operation
• Suitable for compact designs

The Pololu 75:1 Micro Metal Gearmotor HP 6V w/ 12 CPR Encoder, Back Connector is a compact brushed DC motor equipped with a metal gearbox. It features a 10×12 mm gearbox cross-section and a 9 mm long, 3 mm diameter D-shaped output shaft. This gearmotor integrates a two-channel incremental Hall effect encoder, which detects the rotation of a magnetic disk on the motor shaft's rear protrusion. The encoder provides a resolution of 12 counts per revolution of the motor shaft, with the gearbox output's counts per revolution determined by multiplying 12 by the gearbox reduction factor.

The encoder is equipped with a 6-pin JST SH-style male connector, compatible with corresponding cables and connector boards. The Back Connector orientation aligns parallel to the motor. The motor terminals connect to the M1 and M2 connector pins, accessible via red and black wires when used with appropriate JST cables. The motor is designed for bidirectional operation by alternating the power leads' polarity.

The sensors are powered through Vcc and GND pins, with Vcc ranging from 2.7 V to 18 V. The quadrature outputs A and B are digital signals, driven low or pulled to Vcc through pull-up resistors, depending on motor orientation. These signals are square waves with 50% duty cycles, approximately 90° out of phase, indicating motor direction and speed through the order and frequency of transitions.