Small size driver module TB67S279FTG stepper motor powered with 10 ... 47V voltage and working current 1.1A. The controller allows you to control the motor movement up to 7 different resolutions (up to 1/32 of a step). Module with soldered connectors. Polol 3099

Mini SPDT type end switch with lever length 13.5mm and current capacity of 1A contacts. Pololu 1528

Extension board with stepper motor controller based on the STSPIN820 system. Ideally suited for use, among others in 2D / 3D printers, robots, cameras. Pololu 2878

Module with the 3-channel distance sensor OPT3101. The sensor has a range of up to 1 m, a wide viewing angle of up to 180° and communicates via the I2C interface. Pololu 3680

Small size driver module TB67S279FTG stepper motor powered with 10 ... 47V voltage and working current 1.1A. The controller allows you to control the motor movement up to 7 different resolutions (up to 1/32 of a step). Polol 3098

Small size driver module TB67S249FTG stepper motor powered with 10 ... 47V voltage and working current of 1.6A. The controller allows you to control the motor movement up to 7 different resolutions (up to 1/32 of a step). Polol 3096

Pololu G2 18v25 High Power is a miniature DC motor controller. Driver\'s power supply: 6.5 ... 30V. Current capacity of the module: 25A. The module has protection against back voltage and overvoltage. Pololu 1366

A circuit board compatible with Arduino Leonardo equipped with Atmega32U4 microcontroller and step-up / step-down converter. Polol 4007

Module with 3 QTR 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 4103

Module with 2 QTR type optocoupler with analog 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 4202

This gearmotor is a miniature high-power, 6 V brushed DC motor with long-life carbon brushes and a 210.59:1 metal gearbox. It has a cross section of 10 × 12 mm, and the D-shaped gearbox output shaft is 9 mm long and 3 mm in diameter. This version also has a 4.5 × 1 mm extended motor shaft.

Chassis Romi Chassis Kit is the ideal base for building a small mobile robot. The set contains all the necessary mechanical elements for building a mobile circular robot. Self-assembly set. Polol 3504

Solarbotics K SV Sumovore Mini Sumo Kit

Kit includes all the basic mechanical parts to get up and running, including two motors, two wheels, one ball caster, and battery contacts. Pololu 3500

Aluminum Standoff 1.25" 4-40 M-F 4-Pack

The versatile Romi chassis is a great starting point for your next mobile robot. This kit includes all the basic mechanical parts to get up and running, including two motors, two wheels, one ball caster, and battery contacts. The wheels and ball are white; all other plastic components are pink.

This item is a set of three plastic rollers, a 1″-diameter plastic ball, and a retaining clip that can be used on the front or back ball caster locations on the Romi chassis base plate. The ball is white, and all other parts are red. It is included as part of the red Romi Chassis Kit.

The Step-Up Buck Voltage Regulator module with adjustable output voltage in range of 2.5-9.5V with a input voltage range of 1.5-16V and a maximum output current of 2A. Pololu 791

Machine Screw: #2-56, 7/16" Length, Phillips (25-pack)

This gearmotor is a miniature high-power, 6 V brushed DC motor with long-life carbon brushes and a 29.86:1 metal gearbox. It has a cross section of 10 × 12 mm, and the D-shaped gearbox output shaft is 9 mm long and 3 mm in diameter.