Stepper Motor Control, PWM Pulse Signal Generator, Speed Controller, Adjustable Frequency Card, 15-160 V / 5-12 V PWM Generator : Amazon.de: Business, Industry & Science
Amazon.com: Walfront PWN Controller Signal Generator 15-160V / 5-12V Stepper Motor Controller Adjustable Frequency Speed Regulator Board for Controlling Motor : Industrial & Scientific
Adafruit DRV8833 DC/Stepper Motor Driver Breakout Botland - Robotic Shop