3-AA Battery Holder

3-AAA Battery Holder

Holder for 4 AA R6 batteries with a flap and a switch is an ideal solution for people who need a simple and reliable way to connect AA batteries to obtain a voltage of 6 V

Solarbotics SW-B BLACK Servo Wheel with Encoder Stripes, Silicone Tire

Machine Screw: M3, 25mm Length, Phillips (25-pack)

The RoboClaw Solo motor controllers from Basicmicro (formerly Ion Motion Control) can control a single brushed DC motor using USB serial, TTL serial, RC, or analog inputs. An integrated quadrature decoder make it easy to create a closed-loop speed control system. 

15:1 Micro Metal Gearmotor. Pololu 4780

15:1 Micro Metal Gearmotor. Pololu 4784

Miniature MP electric motor (6 VDC / 40 mA) in a metal casing with a 30: 1 gearbox, with a half shaft D with a diameter of 3 mm.

A small, low-power motor with a 5:1 metal gear, 6 V operating voltage, 0.02 A to 0.36 A power consumption, 2500 RPM speed and a maximum torque of 0.05 kg * cm. Pololu 1100

A small medium-power motor with a 250:1 metal gear, 6 V operating voltage, 0.04 A to 0.67 A power consumption, 88 RPM speed and a maximum torque of 2.2 kg*cm. Pololu 2370

A small medium power motor with 210:1 metal gear, 6 V operating voltage, 0.04 A to 0.67 A power consumption, 100 RPM speed and a maximum torque of 1.7 kg*cm. Pololu 2369