{"product_id":"a4988-drv8825-stepper-motor-driver-heatsink-stepstick-3d-printer-arduino","title":"A4988 \/ DRV8825 Stepper Motor Driver Module with Heat Sink — StepStick for 3D Printers \u0026 Arduino","description":"\u003ch2\u003eA4988 \/ DRV8825 Stepper Motor Driver Module with Heat Sink — StepStick Carrier\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eA4988 and DRV8825 stepper motor driver modules\u003c\/strong\u003e are the industry-standard StepStick-format drivers used in RAMPS 1.4\/1.6 boards, 3D printer control boards (MKS, SKR, Creality), and Arduino CNC shields. Each module includes a pre-attached aluminum heat sink for thermal management at sustained current levels. Select the A4988 for standard 3D printer applications or the DRV8825 for higher current motors and finer microstepping.\u003c\/p\u003e\n\n\u003ch2\u003eKey Specifications\u003c\/h2\u003e\n\u003ctable\u003e\n  \u003ctr\u003e\n\u003cth\u003eParameter\u003c\/th\u003e\n\u003cth\u003eA4988\u003c\/th\u003e\n\u003cth\u003eDRV8825\u003c\/th\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eMax Output Current\u003c\/td\u003e\n\u003ctd\u003e1A continuous (2A peak)\u003c\/td\u003e\n\u003ctd\u003e1.5A continuous (2.2A peak)\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eMotor Supply Voltage\u003c\/td\u003e\n\u003ctd\u003e8V – 35V\u003c\/td\u003e\n\u003ctd\u003e8.2V – 45V\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eMicrostepping\u003c\/td\u003e\n\u003ctd\u003eFull, 1\/2, 1\/4, 1\/8, 1\/16\u003c\/td\u003e\n\u003ctd\u003eFull, 1\/2, 1\/4, 1\/8, 1\/16, 1\/32\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eLogic Voltage\u003c\/td\u003e\n\u003ctd\u003e3.3V \/ 5V\u003c\/td\u003e\n\u003ctd\u003e3.3V \/ 5V\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eThermal Protection\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eCurrent Adjust\u003c\/td\u003e\n\u003ctd\u003eOnboard potentiometer (Vref)\u003c\/td\u003e\n\u003ctd\u003eOnboard potentiometer (Vref)\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eHeat Sink\u003c\/td\u003e\n\u003ctd\u003eIncluded\u003c\/td\u003e\n\u003ctd\u003eIncluded\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eForm Factor\u003c\/td\u003e\n\u003ctd\u003eStepStick (Pololu-compatible)\u003c\/td\u003e\n\u003ctd\u003eStepStick (Pololu-compatible)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eA4988 vs DRV8825 — Which to Choose?\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eA4988\u003c\/strong\u003e — Best for standard NEMA 17 motors in 3D printers (Ender 3, CR-10, Prusa i3). Proven, widely supported, easy to tune.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDRV8825\u003c\/strong\u003e — Better for higher-current motors, quieter operation at 1\/32 microstepping, and higher voltage systems. Requires a 100μF capacitor on VMOT to prevent voltage spikes.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eTypical Applications\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e3D printer axis motors (X, Y, Z, extruder) on RAMPS 1.4\/1.6, MKS Gen, SKR boards\u003c\/li\u003e\n  \u003cli\u003eArduino CNC shield for laser engravers and CNC routers\u003c\/li\u003e\n  \u003cli\u003eTelescope mount and camera slider motor control\u003c\/li\u003e\n  \u003cli\u003eRobotic arm and pan-tilt mechanism control\u003c\/li\u003e\n  \u003cli\u003eAutomated curtain, blind, and valve actuator projects\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003ch3\u003eQ: How do I set the current limit?\u003c\/h3\u003e\n\u003cp\u003eMeasure the Vref voltage at the potentiometer wiper with a multimeter. For A4988: \u003cstrong\u003eImax = Vref \/ 0.8\u003c\/strong\u003e. For DRV8825: \u003cstrong\u003eImax = Vref \/ 0.5\u003c\/strong\u003e. Set Vref to achieve your desired current limit. Start low and increase gradually while monitoring motor temperature.\u003c\/p\u003e\n\n\u003ch3\u003eQ: Do I need to add a capacitor for the DRV8825?\u003c\/h3\u003e\n\u003cp\u003eYes. Texas Instruments recommends a \u003cstrong\u003e100μF electrolytic capacitor\u003c\/strong\u003e across the VMOT and GND pins to suppress voltage spikes from motor back-EMF. Without it, the DRV8825 may be damaged by transient overvoltage.\u003c\/p\u003e\n\n\u003ch2\u003ePackage Contents\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e1× A4988 or DRV8825 Stepper Motor Driver Module (select variant)\u003c\/li\u003e\n  \u003cli\u003e1× Aluminum heat sink (pre-attached)\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Keszoox","offers":[{"title":"A4988 Red","offer_id":46981893488875,"sku":"14:10#A4988 Red","price":5.32,"currency_code":"USD","in_stock":true},{"title":"A4988 Green","offer_id":46981893521643,"sku":"14:200004870#A4988 Green","price":5.32,"currency_code":"USD","in_stock":true},{"title":"DRV8825","offer_id":46981893554411,"sku":"14:202693815#DRV8825","price":6.04,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0677\/1005\/8731\/files\/a4988-drv8825-stepper-motor-driver-heat-sink-arduino.webp?v=1761113384","url":"https:\/\/keszoox.com\/products\/a4988-drv8825-stepper-motor-driver-heatsink-stepstick-3d-printer-arduino","provider":"Keszoox","version":"1.0","type":"link"}