Sparkfun BOB-13752 Auto Driver Stepper Motor Driver L6470 – Maverick Industrial Sales
EasyDriver Stepper Motor Driver | Motor - Pontes H | PTR001030
Amazon.com: SparkFun Big Easy Driver Stepper Motor Driver Board for bi-Polar Stepper Motors up to a max 2A/Phase Maximum Motor Drive Voltage of Around 30V Includes on-Board 5V/3.3V Regulation Allegro A4988 Chip :
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SparkFun Electronics ROB-12779 EasyDriver - Stepper Motor Driver | eBay
Amazon.com: SparkFun ProDriver - Stepper Motor Driver (TC78H670FTG) - No Soldering Required Power Supply Operating Voltage: 3.6 V to 16.0 V Allows Full Half Quarter and More Step Operation : Electronics
Stepper Speed Control Menu Driven for Arduino : 6 Steps - Instructables