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Product description CNC Shield Expansion Board V3.0 + A4988 Stepper Motor Driver With Heatsink for Arduino Kits K75 Operating voltage: 5V Digital I/O pins: 14 (including 6 with PWM capability) I-I/O pin output current: 40mA max 3.3V output current: 150mA max Flash memory: 32 kB (0.5kB ud by bootloader - included) Static RAM (SRAM): 2 kB EEPROM: 1 kB Clock speed: 16MHz A4988 Stepper Motor Driver Board is a breakout board for Allegro's A4988 DMOS Micro-stepping Driver with Translator and Overcurrent Protection; Low RDS (On) Output Automatic current decay mode detection / lection Mix with slow current decay modes Synchronous rectification for low power dissipation Internal UVLO Crossover-current protection 3.3 and 5 V compatible logic supply Thermal shutdown circuitry Ground fault protection Load short-circuit protection Five lectable step modes: full, 1/2, 1/4, 1/8 and 1/16 Warning: Connecting or disconnecting a stepper motor while the driver is powered can destroy the driver. (More generally, rewiring anything while it is powered is asking for trouble).Color: blue + red Material: metal + PC Package Contents: 1 x CNC Shield Board 4 x A4988 Stepper Motor Driver See More
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