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DIY: test firmware to check your arduino + ramps 1.4 + SMPS + nema 17 stepper motor working well - YouTube
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Amazon.com: OSOYOO 3D Printer Kit with RAMPS 1.4 Controller + Mega 2560 Board + 5pcs A4988 Stepper Motor Driver with Heatsink + LCD 12864 Graphic Smart Display Controller with Adapter for Arduino RepRap : Industrial & Scientific
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Controlling a stepper motor with a Ramps 1.4 shield - Motors, Mechanics, Power and CNC - Arduino Forum
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