
Adafruit

Adafruit TB6612 1.2A DC/Stepper Motor Driver Breakout Board
$4.90
Spin two DC motors, step one bi-polar or uni-polar stepper, or fire off two solenoids with 1.2A per channel using the TB6612. We really like these dual H-bridges, so if you want to control motors without a shield or HAT these are easy to include on any solderless breadboard or perma-proto. The TB6612 has be soldered onto a breakout board for you...
Adafruit Motor/Stepper/Servo Shield for Arduino v2.3 Kit

Adafruit Motor/Stepper/Servo Shield for Arduino v2.3 Kit
$19.90
This kit has TB6612 MOSFET drivers with 1.2A per channel current capability (you can draw up to 3A peak for approx 20ms at a time). It also has much lower voltage drops across the motor so you get more torque out of your batteries, and there are built-in flyback diodes as well. Instead of using a latch and the Arduino's PWM pins, this kit has a ...

Adafruit Stepper motor - NEMA-17 size - 200 steps/rev, 12V 350mA
$13.95
A stepper motor to satisfy all your robotics needs! This 4-wire bipolar stepper has 1.8° per step for smooth motion and a nice holding torque. The motor was specified to have a max current of 350mA so that it could be driven easily with an Adafruit motor shield for Arduino (or other motor driver) and a wall adapter or lead-acid battery.Some nice...
Adafruit Industries 12VDC 32-Step Stepper Motor

Adafruit Industries 12VDC 32-Step Stepper Motor
$4.90
This is a great first stepper motor, good for small projects and experimenting with steppers. This uni-polar motor has a built in mounting plate with two mounting holes. There are only 32 step (11.25 degree) per revolution, and inside is a 1/16 reduction gear set. The shaft is flattened so its easy to attach stuff to it with a set-screw. A perf...