A4988 Driver Tutorial How to Use ENABLE, SLEEP, and RESET Pins for Stepper Motor Control#a4988 #stepper #pinoutThe A4988 stepper motor driver is a DMOS micro-stepping driver with converter and over current protection that operates bipolar stepper motors in full, half, quarter, 1/8 and 1/16 step modes for output drive performance Up to 35 V and ±2, the A4988 includes a fixed off-time current regulator that operates in slow or mixed-fade mode. In this tutorial we will use stepper driver A4988, NEMA17 stepper motor, Arduino Uno and Visuino to run a stepper motor for a certain amount of steps. Dedicated ASCOM focuser driver (and 2nd driver for an additional stepper motor) Works with FocusMax, Nebulosity, APT, ScopeFocus via ASCOM driver (others not recommended) Zero position set manually (via two push buttons) or in software. This is a bulk-packaged version of our A4988 Stepper Motor Driver Carrier that ships without header pins. 0, cover the jumper cap to the pin header represents high level, do not cover the. The motor will run five revolutions back and forth with a speed of 200 steps per second and an acceleration of 50 steps/second 2. Question: a) Do datasheet calculation for a step motor. 62 each. You provide a step direction and an instruction to step, and it does the stepping for you. The A4988 Driver Module is used to control the speed and direction of stepper motors mainly used in robotics, toys, 3D printers for motion control. The driver requires a logic supply voltage (3 – 5. , Ltd. The A4988 is a complete micro-stepping motor driver with a built-in translator for easy operation. !!! Beware of the orientation of the A4988 driver boards! You will destroy the A4988 driver board if plug-in with wrong orientation. Basado en el chip Allegro A4988. The A4988 Module has a total of 16 pins that connects to the stepper motor and the Arduino, The pinout is as follows. Microstep resolutions: 1, 1/2, 1/4, 1/8, 1/16. Additional information. on hold. 4 Overcurrent protection (OCP) is tested at TA = 25°C in a restricted range and guaranteed by characterization. 1. A4988 / Drv8825 – Stepper Motor Driver Expansion Board - EGP 45. 8W per motor, hence 5. The newer A4988 offers overcurrent protection and has an internal 100k. Using Arduino Motors, Mechanics, Power and CNC. 1. Then, continue by connecting the capacitor and resistors to the 555 timer IC. The code currently uses a custom driver board based on a, A4988: DMOS Microstepping Driver, with: step, direction, and enable. The schematic is as follows: And the code to try and make the motor move with a button is: const int = buttonPin = 2; const int = stepPin = 3; const int = dirPin = 4; int buttonState = 0; void setup () { pinMode. 4. 15. Im using the driver A4988 together with stepper 28byj-48. This breakout board for Allegro’s A4988 microstepping bipolar stepper motor driver features adjustable current limiting, over-current and over-temperature protection, and five different microstep resolutions (down to 1/16-step). This L298N Motor Driver Module is a high power motor driver module for driving DC and Stepper Motors. A. 19 ($2. I have so far tested with a few stepping motors (uni- / bipolar) + L298N driver / ULN2003 Driver and everything always worked without problems. The problem is, I cannot adjust the A4988 to get. This product: A4988 – Stepper Motor Driver - EGP 70. 2 v the noise goes away. First mounting same precision 1/16 step : The example pictures are for the X axis driver it is the same thing for all the drivers. , STEP and DIRECTION. A4988 includes a fixed off-time current regulator, the regulator can slow or mixed decay mode. e. You can also solder your motor leads and other connections directly to the board. Microstepping is supported. The wiring is done as shown below with few exceptions: Enable, MS1, MS2 & MS3 pins are. 96V and I checked it from the + probe on the turnpot and - on a. Hi, First of all, i wanted to tell everyone that i am a mechanical student so don't know much about electronics. However, the Allegro drivers don't apply DC, they apply a duty-cycle modulated square wave, which limits the overall power delivered to the motor. A4988 is a 16 pin driver as shown in following figure. 5 × 5 × 4 cm. Control steppers via a driver board providing STEP+DIR like the ones from Pololu. 1 Board dimensions (top view) Scale 3:1 Scale 3:1 Isometric view 3 Scale 3:1 Connector callouts (bottom view) 2 Scale 3:1 Profile 4 6 Scale 1:1 Actual sizeHello everybody, I have the following problem. These drivers have become. Here is a circuit diagram of the setup, with voltage readings taking from a. This driver is to be able to control a A4988 stepper motor driver in java. 8° step angle (200 steps/revolution). 0 out of 5 stars 1. driver board to motor (this varies from motor to motor, check motor coils schematic). It features a four-layer PCB for better thermal performance, allowing the A4988 microstepping bipolar stepper motor driver to deliver approximately 20% more current than our two-layer (green). The A4988 motor controller is the micro-stepping driver for controlling the Bipolar Stepper motor. Please see the A4988 Stepper Motor Driver Carrier product page for more information about the driver. The stepper motors used in earlier Anet A8-B (as bought in May 2016) are NEMA 17 SL42STH40-1684A produced by Guangzhou Shenglong Motor Co. 2. First of all, download Arduino Library for Proteus by clicking the below button: Arduino Library for Proteus. 2. I was already in possession of two stepper motors a NEMA 17 "103H5210-4240" and a NEMA 23 "103H7123-0140" both engines are from 1A per phase and a minimum of 24v power. The driver features adjustable current limiting, overcurrent and overtemperature protection, and five different microstep resolutions (down to 1/16-step). I have been trying to follow this tutorial: Besides the NEMA 17, Arduino UNO, and A4998 stepper, I'm also using the following 12V 2A power supply: However, I have been unsuccessful in getting any movement out of the stepper. This allows you to control a bipolar stepper motor, such as the NEMA 17, at up to 2A output. Allegro MicroSystems, LLC. vanepp October 6, 2022, 9:57pm 2. The A4988 is a stepper motor driver board that has on a A4988_chip that enables control of stepper motors through arduino type programming firmware and software. Excellent, thanks Jim! RossW October 13, 2015, 1:02am #4. output voltage of the buck converter is always less than the input voltage. Hello, I am using the A4988 Stepper motor driver (purchased here) with a stepper motor (here), but I can't figure out how to use it! I have followed the instructions in the datasheet (here) and my wiring is shown in the attachments. 4 + Arduino Mega), a small philips screwdriver, a multimeter and a couple of crocodile clips. 0 changes the normal run current from 0-100%. After installing the SSD1306 library from Adafruit, type “ GFX ” in the search box and install the library. The difference is that when inserted into the plate, it is necessary to invert the top part, since both have potentiometers, but on different sides. After replacing the A4988 with TMC2208 and setting the reference voltage to it's correct value (which for my. Quantity. 2156-A4988SETTR-T. Servo motors are controlled by sending a PWM (pulse-width modulation) signal to the signal line of the servo. You can choose to use the following constants from the array to configure the correct driver: Maybe you saw it somewhere but probably you didn't spotted these details, actually the name of the "A4988 Stepper Shield" firstly invented by inventors of Polulu Robotics & Electronics when first DIY CNC Machines appear since these Stepper drivers helps to easily driver the Steppers of CNC machines but the name itself comes from the Integrated Circuit of the Shield which is the A4988 designed. Hi, I found an other thread (from 2019) but it has become too long so was very difficult to navigate/read, hence starting a new one here. The A4988 includes a fixed off-time current regulator which has the ability to operate. The A4988 includes a fixed off-time current regulator which. For a AccelStepper::DRIVER (interface==1), this is the Direction input the driver. Specifications: Voltage range: 8-35V. CNC Shield biasa digunakan untuk pembuatan projek mesin ukiran CNC, printer 3D [16], gerakan linear, pemotong laser router CNC, dan plotter [17]. You might get some good results with the A4988 driving a 15 deg/step printer motor. 8″) Short-to-ground and shorted-load protection Low RDS(ON) outputs Thermal shutdown circuitryThe A4988 Stepper Motor Driver is designed for use with a wide variety of devices that use stepper motors, including 3D printers, CNC machines, and other precision control systems. 3 and 5 V compatible logic supply Thermal shutdown circuitry Datasheet searchWith that in mind you could put your multimeter on its 10 amp setting between the driver and the motor and see what current flows when the driver is enabled and the motor is stationary. Harga Stepper Motor Driver A4988 3D Printer with Heatsink. The logic voltage can be supplied from an external source, such as that powering the logic of the rest of the system, or by jumpering the output of the 5 V or 3. Size 42*42*40 (mm) Weight 280g. The "TasmotaSmartCatFeeder" circuit consists of a WeMos D1 mini, an A4988 controller, and two power supplies (5V&12V). hello. 15 v. Hello, I am using a version of an Arduino CNC board that is found here to drive 4 wheels on a small wheeled robot. . A4988 Product details. The DRV8825 has a larger maximum supply voltage (45 V vs. I’ve got my 2 steppers connected to the same A4988 driver board (coils reversed so they spin in opposite directions) with the DIR pin connected to +5V (since the direction is constant). 79mm mm Motor Drivers 28 3. 853. It operates from 8 V to 35 V and can deliver up to approximately 1 A per phase without a heat sink or forced air flow (it is rated for 2 A per coil with. 11009. Defaults to pin 2. 7 inches (43 mm × 43 mm). I will drive multiple a4988 drivers running nema17 from esp32 using arduino IDE. 7 Amps but the A4988 will struggle to provide more than about 1. I am starting to use the driver A4988, typically used for NEMA 17 motors and many others. 1. Integration with a server PC is available for. 5 V) to be connected across the VDD and GND pins and a motor supply voltage (8 – 35 V) to be connected across VMOT and GND. e. FORIOT 8pcs A4988 Stepper Motor Driver Module with Heat Sink Compatible with Stepstick Stepper for 3D Printer Reprap，Red. I want to know. The A4988 stepper motor driver carrier is a breakout board for Allegro’s easy-to-use A4988 microstepping bipolar stepper motor driver and is a drop-in replacement for the A4983 stepper motor driver carrier. 620-1343-1. The driver features adjustable current limiting, overcurrent protection, and five different microstep resolutions. Python Dependencies. 5 A – – 1. These drivers have become. Included hardware. This integrated motor driver makes interfacing with a microcontroller super easy as you only need two pins to control both the speed. You can use this diagram as a starting point, though you can just tie STEP and DIR to ground and leave the motor disconnected. 14. In this tutorial we will learn how to control a Stepper Motor using the A4988 Stepper Driver. 5 A. Here is the link to official shop, includes motor specs. ArduinoTEP. 3. The Library Manager should open. Installation. I’m also aware that I need to make sure I power the drivers in parallel from this source, and not. Each phase draws 1. Compatible with 3. 0 to 1. This breakout board for Allegro’s A4988 microstepping bipolar stepper motor driver features adjustable current limiting, over-current and over-temperature protection, and five different microstep resolutions (down to. the problem was that I cleaned the cnc which is under tension with a vacuum cleaner when I see a white smoke coming from the pilot A4988 (fig 3 ) the axis y1 I use the. Some DRV8825's can now be had for as low as $1. The stepper motor library uses a timer which triggers an interrupt every 10us. 2. To make your motors compatible with the motor driver simply take the red wire out of the white connector. Code. The driver features adjustable current limiting, overcurrent protection, and five different microstep resolutions. This breakout board for Allegro’s A4988 microstepping bipolar stepper motor driver features adjustable current limiting, over-current and over-temperature protection, and five different microstep resolutions (down to 1/16-step). 4. It operates from 8 V to 35 V and can deliver up to approximately 1 A per phase without a heat sink or forced air flow (it is rated for 2 A per coil with sufficient additional cooling). The driver operates at 4. The A4988 driver is a commonly used bipolar stepper motor driver that can provide up to 2A current per coil from 8V to 35V. Close windowThe Pololu A4988 web page has information about setting the current limit. OVERVIEW Following in the foot steps of our last tutorial, we will now see how to achieve the same results using the popular “AccelStepper” library. S. The A4988 is a complete microstepping motor driver with built-in translator for easy operation. OctagonStar A4988 Driver CNC Shield Expansion Board for Arduino V3 Engraver 3D Printer. In this video i will show you how to operate Nema 17 Stepper Motor with Arduino using Arduino CNC Shield V3 and A4988 Stepper Motor Driver. 1 ohm on this particular board and confirmed with meter). 62 each. Calculating the Vref for the DRV8825 drivers is easy: VREF = current / 2. To adjust the potentiometers you will need a 3D Printer / CNC board to plug the drivers (e. Product details. It is capable of operating bipolar stepper motors in full step, half step, quarter step, eighth step, and sixteenth step modes. Your motor can take 1. Pricing and Availability on millions of electronic components from Digi-Key Electronics. You still need to honor the minimum voltage requirements of the driver that you choose. 2. A4988. $9. The A4988 is a complete microstepping motor driver with a built-in translator for easy operation with minimal control lines. Compare. To do cut the connector to remove the red wire and cut the red wire of the motor. Package Dimensions : 5. A 4 amp motor really needs a 5 or 6 amp driver. You don't really need a library for that. Our Black Edition A4988 stepper motor driver carrier is a higher-performance drop-in replacement for the original A4988 stepper motor driver carrier. The process supports design scales of 300 devices or 1000 pads. The driver features adjustable current limiting, overcurrent protection, and five different microstep resolutions. 508. The driver features adjustable current limiting, overcurrent and overtemperature protection, and five different microstep resolutions (down to 1/16-step). Qiita Blog. It has many advantages including adjustable current limiting, over temperature and over current protection. 0 – 5. 9A. All seems to work with the following code: // Accelerates up to MaxSpeed. However if I feed it with 12 v there is a high frequence noise that wont go away untill I turn my powersupply down to around 9 v. It operates from 8 V to 35 V and can deliver up to approximately 1 A per phase without. This item: HiLetgo 5pcs A4988 Stepstick Stepper Motor Driver Module with Heat Sink for 3D Printer Reprap Suitable for Mendel Huxley Arduino $10. Using this Nema 17 motor driver module, we can control stepper motor by using only two pins, i. 5 milliseconds (ms), the servo will move to the neutral position (90 degrees). Esmacat is a powerful platform that can be used to develop DAQ sensor interfaces and motion control applications with hard real-time constraints. This article is going to talk about the features, and applications of A4988 and DRV8825. 3V to 5. Insulation Resistance 100 MΩ Min. ) It is a chopper microstepping driver based on the Allegro A4988 driver chip. This means that stepper motors can be easily controlled with just a few input signals. (motores com quatro, seis ou oito fios). 36V to drive 1. These two Proteus library zip files are named as: ArduinoTEP. Step 1: Using A4988. 7A x . 1. acroscene February 23, 2022, 11:11am 1. - Giao thức điều khiển số bước và chiều quay rất đơn giản. Data diperbaharui pada 22/11/2023. DMOS Microstepping Driver with Translator and Overcurrent Protection A4988 7 Allegro MicroSystems 955 Perimeter Road Manchester, NH 03103-3353 U. It operates from 8 V to 35 V and can deliver up to approximately 1 A per phase without a heat sink or. El uso de un driver Pololu para el control de un motor paso a paso nos simplifica mucho el trabajo ya que este driver se encarga de generar todas las señales necesarias para su funcionamiento y además nos añade las protecciones necesarias de temperatura y corriente. It also has pins M1-M3 to set the microstepping mode. It can deliver up to approximately 1 A per phase without a…NEMA 17 motor has a faceplate dimensions of 1. 000. 99. A. StepperDriver. I have here the datasheet of the Arduino Uno, and also the datasheet of the A4988. nRF24L01 – How It Works, Arduino Interface, Circuits, Codes. 15 v. 853. :~ I started building one project for which i need to use Stepper motors. Bước 1: Tải xuống file zip thư viện Proteus chẳng hạn như Thư viện ARDUINO Proteus. 0 to 1. The voltage fed to the Analog pin of ESP8266 can be used as a reference voltage to control the speed of the Stepper Motor. It is intended to do the same job that the A4988 does. h file of Marlin 2. According to the datasheet for my A4988, I should be calculating Vref as: Imax = Vref / (8 * Rs) so, Vref = I * (8 x Rs) (where Rs is 0. 5 V Output On-Resistance R ds(on) Source driver, I OUT = –1. Im using the driver A4988 together with stepper 28byj-48. The driver has a built-in translator which means it can take pulse signals from a microcontroller and convert them into the correct sequence of motor windings energization. It operates from 8 V to 35 V and can deliver up to approximately 1 A per phase without a heat sink or forced air flow (it is rated for 2 A per coil with. 7 by 1. (So if your motor is 200 full steps per revolution, you would get 3200 steps/rev using the Big Easy Driver. . The headers can be soldered in for use with solderless breadboards or 0. 00. Es conocido con el nombre de "Pololus" o "controlador Pololu". It has 3 stepper motor (2 for the base movement and 1 for the Vertical left or Vertical Right). DMOS Microstepping Driver with Translator And Overcurrent Protection A4988 Allegro MicroSystems, LLC 7 115 Northeast Cutoff Worcester, Massachusetts 01615-0036 U. Acceleration is supported. Each BigEasyDriver (BED) can drive up to about 2A per phase of a bi-polar stepper motor. Included hardware. Como calibrar el driver A4988 ajustando el Voltaje de referencia Vref de forma correcta para que no pierda pasos, conexión de la CNC Shield a los motores de. Just use the PWM express VI for myRIO to output a pulse. Code: a look at a sketch designed for controlling a A4998 stepper driver. Short-to-ground and shorted-load protection. 4 and configure the Marlin firmware for 2. 499 only at Robu. Each phase draws 1. The key features are: This driver has 200 steps per revolution in full step (1. Like for the above discussed 6 wire 2-phase (4V,1. I am trying to make a motorized window blinds using a 12V 28BYJ-48 stepper motor, Wemos D1 mini and A4988 driver. A4988 Stepper Motor Driver is a carrier board or breakout board for Allegro’s A4988 DMOS Microstepping Driver with current limiting and overcurrent protection. The A4988 Nema 17 stepper driver is a microstepping driver module that is used to control bipolar stepper motors. Hello, To test one of your A4988 boards, you can just hook it up with some minimal connections and then measure the voltages on the motor outputs. 6W in total. Quantity: (Order in multiples of 5) backorders allowed. It’s important to check which direction you insert the driver. The driver features adjustable current limiting, overcurrent and over-temperature protection, and five different micro-step resolutions (down to 1/16-step). 620-1343-2. It has two voltage regulators (5 V and 3. 5A8*0. 49. geeetech 3d printers onlinestore, one-stop shop for 3d printers,3d printer accessories,3d printer parts Stepper driver A4988 with heatsink and sticker [800-001-0420] - This product is a breakout board for Allegro’s A4988 DMOS Microstepping Driver with Translator and Overcurrent Protection; please read the A4988 datasheet carefully before using this. I would like to use the equivalent of an A4988 driver expansion card on fritzing, but I haven’t found one on the internet personally. tmc stepper driver. This breakout board for Allegro’s A4988 microstepping bipolar stepper motor driver features adjustable current limiting, over-current and over-temperature protection, and five different microstep resolutions (down to 1/16-step). This driver also allows for up to 16th microstepping. Flight history for AA4998. Purchase this product now and earn 2 Robu Points! The A4988 driver Stepper Motor Driver is a complete micro-stepping motor driver with built-in converter, easy to operate. This product ships with all surface-mount components—including the A4988 driver IC—installed as shown in the product picture. 1, APT v3. 2156-A4988SETTR-T. This all fits into the housing of the feeder and costs less than 50€! Virtually everything which has to be moved or rotated can be done now using these cheap components. The second has the same pinning as the DRV8825. All this time I observed that the driver got hot quite a lot and that's it. Cnc problem , stepper motor driver A4988 damaged. Microstepping is supported. This is done by using the following formula: Vref = Imot x 8 x Rsen. So i made the connections like this. The A4988 stepper motor driver carrier is a breakout board for Allegro’s A4988 microstepping bipolar stepper motor driver. LIB. Open your Arduino IDE and go to Sketch > Include Library > Manage Libraries. Open the Arduino Serial Window at 57600 baud to see messages from your Arduino, then follow along in the code to understand. To adjust the potentiometers you will need a 3D Printer / CNC board to plug the drivers (e. S. AFAIK none of the stepper motor drivers that can provide 3. Si necesita controlar motores paso a paso más grandes como el NEMA 23, eche un vistazo al controlador de motor paso a paso TB6600. 3d printer board. If you haven’t tuned your motor current at all, it may happen that the motor doesn’t move correctly and starts pulsating, it will stop as soon as you reduce the current by rotating the pot. The A4988 stepper motor driver carrier is a breakout board for Allegro’s A4988 microstepping bipolar stepper motor. 3. Datasheet search engine for Electronic Components and Semiconductors. These drivers are used to drive NEMA 17 motors on the Mill One. Low to high transition means to step) [in] pin2: Arduino digital pin number for motor pin 2. Control steppers via a driver board providing STEP+DIR like the ones from Pololu. The A4988 includes a fixed off-time current regulator which has the. The SPI interface will not work unless. So, to set our driver to 1A, we need to set our Vref to 1/2 = 0. 5. Bước 2: Giải nén file thư viện. 75 Volts and 28 DC. The DevMo 5 piece Stepstick Mute stepper motor driver is a great choice for anyone concerned about the heat levels produced from their 3D printer. 1. This device contains two sinusoidal DACs that. Micro-stepping the motor has made it a lot smoother and quieter. This allows you to control a bipolar stepper motor, such as the NEMA 17, at up to 2A output current per coil. Otra ventaja que nos proporciona. Allegro MicroSystems, LLC. 6 out of 5 stars 28. 5 = 0. Supports simple circuit simulation. and Overcurrent Protection. 5 mH Holding Torque: 12. Power connections The driver requires a logic supply voltage (3 – 5. 5 A per phase without a heat sink or forced air flow (rated for up to 2. The driver requires a logic supply voltage (3 – 5. But if accuracy is not a criterium, you‘re good to go with the TB6600. I could have used TMC2208s but @mcdanlj convinced it was worth the couple extra $ per. 99 $ 9. Im using the driver A4988 together with stepper 28byj-48. Supported drivers are A4988, DRV8824, DRV8825, DRV8834, DRV8880. 0. It operates from 8 – 35 V and can deliver up to. Unfortunately, connecting all, drivers. Ive read somewhere that the correct current limit on 28byj-48 is somewhere between 0. 2. Ive read somewhere that the correct current limit on 28byj-48 is somewhere between 0. In this section, we will build a project using ESP32 and A4988 stepper motor driver IC. It is designed to operate bipolar stepper motors in full-, half-, quarter-,. S. Click to feedback >Mini Torque Driver 250 product page. There is a built in translator which allows only two pins from the. I am very new to the world of raspberrypi and I am probably making some beginner mistakes. Excellent, thanks Jim! RossW October 13, 2015, 1:02am #4. 0. Each pulse represents a step (or micro-step) taken by the stepper. Microstep Selection Pins: The A4988 driver has three-step resolution selector inputs, i. The A4988 is a complete Microstepping Motor Driver with built-in translator for easy operation. CNC Shield digunakan sebagai papan pengendali driver A4998. DRV8825. The driver i am using is a a4988 Polulu with 2Amps maximum current. A4988 Product details. And it is difficult to set up with the potentiometer. Output Drivers Load Supply Voltage Range VBB Operating 8 – 35 V Logic Supply Voltage Range VDD Operating 3. Do you know any library which need 3 pin (Step, direction, enable) and can drive stepper motors with acceleration and deceleration. The headers can be soldered in for use with solderless breadboards or 0. CNC Shield V4. 1" headers. A4988 Stepper Motor Driver Module A4988 เป็นโมดูลบอร์ด สำหรับควบคุม Stepper Motor โดยเฉพาะ และเป็นโมดูลที่ได้รับความนิยมสูงอีกด้วย สามารถควบคุม Stepper Motor แบบ Bipolar ซึ่งเป็น Stepper แบบ. A4988 is perhaps the most famous stepper motor driver which is usually sold as a complete breakout board. The motor interface type must be set to 1 when using a step and direction driver. First I set the driver voltage to 12v (since Imax = Vref/(8Rs); Vref=1. Part #: MG90S. The driver requires a logic supply voltage (3 – 5. A. Driving a 12V 28BYJ-48 Stepper With the A4988 Stepstick (in Full-step Mode). $egingroup$ Recall that the motors are rated at 4. 100uF capacitor between GND - VMOT. So if you’re looking for a way to make your 3D printer quieter, and it uses these A4988 drivers, then this is a great way to do it without having to spend a fortune. The A4988 driver Stepper Motor Driver is a complete micro-stepping motor driver with built-in converter, easy to operate. Each segment is set by the M0, M1, M2 pin header in the Arduino CNC Shield V3. I used my Uno with CNC shield, A4988 driver and stepper to test (real hardware). 4 working properly. 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. x you can define which stepper driver type is used to drive the stepper in the Stepper Drivers section. A4988 Stepper Motor Driver Module The A4988 stepper motor driver carrier is a breakout board for Allegro’s A4988 micro-stepping bipolar stepper motor driver. Como en la mayoría de los controladores de motores el componente fundamental es un puente-H. 1.