Module with 1 QTRX type optocoupler with RC (digital) output. The module operates from 2.9 V to 5.5 V, detects objects at a distance of up to 30 mm. The sensor will be used in projects that require detection of changes in the ground, e.g. in linefollower robots. Pololu 4341

6-Conductor Ribbon Cable with IDC Connectors 12"

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

Ultrasonic distance sensor MB1000 with a range from 0 to 645 cm. It has an output in the form of a serial interface, an analog signal or generates an impulse whose duration is proportional to the measured distance. Pololu 723

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 set of two white plastic brackets for mounting miniature Polol motors. Mounting screws and nuts included. Extended version. Pololu 1089

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

This sensor is a carrier/breakout board for ST’s VL53L0X laser-ranging sensor, which measures the range to a target object up to 2 m away.

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

ACS724LLCTR-30AB current sensor module with a DC and AC measurement range from -30 to +30 A. It communicates via an analog interface. Pololu 4047

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

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

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

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

Adapter for the 6-pin JST SH connector (horizontal) with a pitch of 1 mm to the DIP holes, pitch of 2.54 mm. The set includes 3 modules. Pololu 4773

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 3.8 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 4852

Mini Tamiya Plug with 10cm Leads, Female

ST Microelectronics\' compact Time-of-Flight (TOF) sensor uses a 940 nm laser to precisely measure distances from 1 mm to 1.2 m with a resolution of 1 mm. It supports an I²C interface, has an XSHUT input for shutdown and a GPIO1 output for object detection, and is compatible with voltages from 2.6 to 5.5 V thanks to a built-in regulator and logic level converter. Pololu 3692

Motor with 37 mm diameter and 54 mm length, 50:1 metal gear, 24 V operating voltage, 0,1 A to 3 A power consumption, 200 RPM speed and 23 maximum torque. Pololu 4683

DC-DC Step-Up converter U3V40F12 with an output voltage of 12 V, an input voltage of 1.3 to 12 V and a maximum output current of 4 A. Pololu 4016