Large servo with dimensions 62.8 × 32.5 × 55.9 mm and weight 180g. It has a torque of 40kg*cm (with a supply voltage of 7.4V). Equipped with a standard 3-pin connector matching most popular modeling controllers and an additional pin indicating the position of the servo. Pololu 3446

Bidirectional current sensor module based on the ACS724 circuit. It allows you to measure current in the range -50A to + 50A. It operates with a voltage of 4.5V to 5.5V and is intended for use in 5V systems. Pololu 4049

Module with ACS724LLCTR-30AU current sensor with a measuring range of direct and alternating current from 0 to 30 A. It communicates via an analog interface. Pololu 4046

15:1 Micro Metal Gearmotor HP with Extended Motor Shaft

This sensor is a carrier/breakout board for ST’s VL6180X proximity and ambient light sensor, which measures the range to a target object up to 20 cm away (or 60 cm with reduced resolution). Pololu 2489

This board is a simple carrier of Broadcom’s bidirectional ±40A ACHS-7124 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 4033

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

The Tic 36v4 USB Multi-Interface High-Power Stepper Motor Controller makes basic control of a stepper motor easy. Pololu 3141

The Tic 36v4 USB Multi-Interface High-Power Stepper Motor Controller makes basic control of a stepper motor easy. Pololu 3140

The plow is intended for use with the Zumo 32U4 robot. The plow is made of thick, laser cut stainless steel and is supplied with a plastic handle for the sensor plate. Pololu 3121

Module with a digital distance sensor with a range of up to 5 cm. It has a digital output that goes low when an object is detected. Pololu 4050

Module with a digital distance sensor with a range of up to 10 cm. It has a digital output that goes low when an object is detected. Pololu 4052