An efficient step-down converter that steps down the input voltage from as low as 45 V to a regulated output voltage range of 1.4 to 7 V, offering high efficiency and a maximum continuous current of 3.8 A. It has built-in reverse polarity, overload and short circuit protection, and the spread spectrum function reduces EMI interference. Pololu 4853

A miniature vibration motor generating vibrations at over 12,500 rpm at a voltage of 3 V, ideal for applications in phones, game controllers or medical devices. With its small dimensions (11.6 × 4.6 × 4.8 mm), low current consumption (65 mA) and flexible cover reducing noise, it is an energy-efficient and easy-to-integrate component for tactile signaling. Pololu 2265

The ACS72981 current sensor module uses the Hall effect to accurately and safely measure AC and DC current, providing electrical isolation of the current path. With a wideband analog output (up to 250 kHz) and low conduction resistance (0.2 mΩ), it minimizes energy loss and offers a fast response time of less than 2 µs. Pololu 5271

Brushed DC motor in a housing 130 supplied with a voltage ranging from 3 to 12 V, with a rotational speed of 11500 RPM and a current consumption of up to 800 mA. Pololu 1117

MP6550 DC motor controller module. It can work with motors supplied with voltage from 1.8 to 22 V and current consumption up to 1.7 A. Pololu 4733

Mini Tamiya Plug with 10cm Leads, Female

Efficient step-down converter that reduces the input voltage from up to 45 V to a regulated output voltage range from 1.4 to 7 V, offering high efficiency and a maximum continuous current of 3.4 A. It has built-in protection against reverse polarity, overload and short circuit, and the spread spectrum function reduces EMI interference. The module is equipped with an additional potentiometer for adjusting the cut-off voltage. Pololu 4872

The ACS72981 current sensor module uses the Hall effect to accurately and safely measure AC and DC current, providing electrical isolation of the current path. With a wideband analog output (up to 250 kHz) and low conduction resistance (0.2 mΩ), it minimizes energy loss and offers a fast response time of less than 2 µs. Pololu 5273

DC-DC Step-Up/Step-Down Converter Module. It has an input voltage of 1.4 to 16 V, an output voltage of 5 V and a maximum output current of 1 A to 1.5 A. Pololu 4965

Module with a stepper motor driver based on the DRV8834 system. It allows you to power a bipolar motor with a current of up to 2 A per phase, without using a heat sink. The system can be powered with a voltage of up to 10.8 V. Pololu 2134

The S9V11F3S5C3 switching step-up/step-down regulator efficiently produces a fixed 3.3 V (default) or 5 V (selectable) output whether it is higher or lower than the input voltage, which can range from 3 V to 16 V. The regulator also has fixed 3.3 V low-voltage cutoff with hysteresis that can be used to prevent battery over-discharge.

Magnetic disk for use with magnetic encoders designed for Pololu 20D series motors. It allows you to generate 12 pulses per revolution. Pololu 3449

The Step-Down D24V3F5 Buck Voltage Regulator module gives the output voltage of 5V with a wide input voltage range of 7-42V and a maximum output current of 300 mA. Pololu 2098

A pair of aluminum brackets with holes for M3 screws for 37D mm gear motors. Pololu 1084

Aluminum Standoff: 1/4" Length, 2-56 Thread, M-F (4-Pack)

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

A set of two aluminium brackets for mounting Pololu 20D motors. Mounting screws are included. Pololu 1138

Nylon Spacer: 20mm Length, 4mm OD, 2.7mm ID (10-Pack)

Bipolar stepper motor. It has a resolution of 200 steps/revolution (1.8° per step), has a nominal voltage of 4 V and draws a current of 1.2 A per coil. Pololu 1200

The compact (0.4″ × 0.5″) D24V5F1 synchronous buck voltage regulator takes input voltages between 3 V and 36 V and efficiently reduces them to 1.8 V while allowing for a maximum output current of 500 mA. This regulator offers typical efficiencies between 75% and 90%. The pins have a 0.1″ spacing, making this board compatible with standard solderless breadboards and perfboards.