Robotics SG90 Micro Servo 9g Small 9g servo giving roughly 1.8kg·cm of torque over 180° from a 4.8-6V supply, driven by a standard PWM sign Contact for price
Robotics MG996R Metal Gear Servo High-torque metal-gear servo producing about 10kg·cm at 6V over 180°. Metal gears survive stall and shock that Contact for price
Robotics L298N Motor Driver Module Dual H-bridge driving two DC motors (or one stepper) at up to 2A per channel from 5-35V, with direction and PW Contact for price
Robotics L293D Motor Driver IC Quadruple half-H driver in a 16-pin DIP, 600mA per channel, for two small DC motors. Cheaper and lighter than Contact for price
Robotics BO Gear Motor with Wheel Plastic-geared DC motor supplied with a rubber wheel, typically 3-12V at around 200 RPM. The standard drive un Contact for price
Robotics NEMA 17 Stepper Motor Bipolar stepper with a 1.8° step angle (200 steps/revolution) and about 4kg·cm holding torque. The motor used Contact for price
Robotics 28BYJ-48 Stepper Motor + ULN2003 Driver Small 5V geared unipolar stepper supplied with its ULN2003 driver board. Low torque but very fine positioning Contact for price
Robotics 2WD Robot Car Chassis Kit Acrylic chassis with two geared motors and wheels, a castor, a battery holder and the required screws and stan Contact for price
Robotics 4WD Robot Car Chassis Kit Four-motor version of the chassis kit, with better traction and payload for rough surfaces. Needs a driver rat Contact for price
Robotics 5-Channel Line Follower Sensor Array Five IR reflectance sensors on one strip with individual sensitivity trimmers, giving the line's position rath Contact for price