This stepper Motor driver arduino shield had three build-in A4988 stepper motor driver IC, which allow you driver three different stepper motors independently. We used high quality SPF 3.5mm pitch terminal for stepper motor connection, the male header side has screw socket, which can provide more reliable connection for the whole project. Also the boards has potentiometer to control the current, jumper for signal mode, and DIP switch for step resolution.
The A4988 is a complete microstepping motor driver with built-in translator for easy operation. It is designed to operate bipolar stepper motors in full-, half-, quarter-, eighth-, and sixteenth-step modes, with an output drive capacity of up to 35 V and ±2 A. The A4988 includes a fixed off-time current regulator which has the ability to operate in Slow or Mixed decay modes.
Warning: Connecting or disconnecting a stepper motor while the driver is powered can destroy the driver.
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