Add quadrature encoders to your 20D mm metal gearmotors (extended back shaft version required) with this kit that uses a magnetic disc and Hall effect sensors to provide 20 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.

Nylon Spacer: 2mm Length, 4mm OD, 2.7mm ID (50-Pack)

Adapter for the 6-pin JST SH connector (vertical) with a pitch of 1 mm to the DIP holes, pitch of 2.54 mm. The set includes 3 modules. Pololu 4771

Bipolar stepper motor. It has a resolution of 200 steps/revolution (1.8° per step), rated voltage of 3.8 V, and has a current consumption of 0.67 A per coil. Pololu 1205

Aluminum Standoff: 1/2" Length, 4-40 Thread, F-F (4-Pack)

Pololu 2467

Shunt regulator with a fixed voltage of 26.4V, bypass resistance of 2.8 Ohms and a total of 32 SMT bypass resistors on both sides of the PCB with the possibility of adding an external potentiometer to adjust the preset voltage. Pololu 3775

Precision Hall effect current sensor offering galvanic isolation, wide bandwidth of 150 kHz and the ability to measure AC and DC current with very low power loss. Thanks to differential measurement and immunity to magnetic interference, it is perfect for applications requiring accurate current monitoring, such as power supplies, converters or motor control systems. Pololu 5291

Step-Down converter D36V28F7 with an output voltage of 7.5 V, an input voltage from 8 to 50 V and a maximum output current of 3.7 A. Pololu 3784

Precision Hall effect current sensor offering galvanic isolation, wide bandwidth of 150 kHz and the ability to measure AC and DC current with very low power loss. Thanks to differential measurement and immunity to magnetic interference, it is perfect for applications requiring accurate current monitoring, such as power supplies, converters or motor control systems. Pololu 5295

A-Star 328P Micro is a small board based on ATmega 328PB microcontroller (Flash, 32 KB, SRAM, 2.5 KB, EEPROM, 1KB, 16 MHz). The system has a loaded bootloader compatible with Arduino. The board has 24 I / O ports (of which 9 pins can be used for PWM outputs and 8 pins for analog inputs). Supply voltage 5.5 ... 15 V. The board works with 5 volts logic voltage. Pololu 3160

Precision Hall effect current sensor offering galvanic isolation, wide 150 kHz bandwidth and the ability to measure AC and DC current with very low power loss. With differential measurement and immunity to magnetic interference, it is perfect for applications requiring accurate current monitoring, such as power supplies, converters or motor control systems. Pololu 5296

Programmable radio module operating at 2.4 GHz. It is based on the CC2511F32 microcontroller. The board has analog outputs, PWM, USART and SPI interfaces and a USB connector. Pololu 1337

DC-DC Step-Up converter U3V40F7 with an output voltage of 7.5 V, an input voltage of 1.3 to 7.5 V and a maximum output current of 4 A. Pololu 4014

A set of two Pololu wheels with dimensions 70x8mm in black. Intended for Standard servos with 5.8mm diameter spline and 25 teeth. Pololu 4925

ACS724LLCTR-10AB current sensor module with a DC and AC measurement range from -10 to +10 A. It communicates via an analog interface. Pololu 4043

This board is a simple carrier of Broadcom’s bidirectional ±50A ACHS-7125 Hall effect-based linear current sensor, which offers a low-resistance (~0.7 mΩ) current path and electrical isolation up to 3 kV RMS. Pololu 4034

A set of two white plastic brackets for mounting micro Pololu motors. Mounting screws and nuts are included. Pololu 1086

Pololu high power miniature motor with carbon brushes. 75:1 gear motor, shaft speed 450 rpm, torque 1kg*cm. The motor has an extended shaft, which makes it easy to attach the encoder. Pololu 3051

298:1 Micro Metal Gearmotor with Extended Motor Shaft