Please make sure that polarity is correct and the current and voltage values are made, if you mess up the polarity the chip will heat up a lot and may burn your breadboard if you are using one. 00. 2. Hi What's the best way to save energy at this electronic diagram (A4988 driver/CD4093) on the datasheet, I can see two inputs able to do this : Enable and sleep Enable Input (ENABLE). - Điều. nRF24L01 – How It Works, Arduino Interface, Circuits, Codes. Supported drivers are A4988, DRV8824, DRV8825, DRV8834, DRV8880. 5 A – – 1. 9 Step Angle: 1. So basically, think of the A4988 as a motor driver. The flight number or. and Overcurrent Protection. 508. RESET and SLEEP are connected together. {"payload":{"allShortcutsEnabled":false,"fileTree":{"src":{"items":[{"name":"A4988. The HBot was controlled with two NEMA 17 stepper motors, each driven with an A4998 stepper driver circuit. Instead of using a joystick to control the stepper motor movements after Homing, we will be using the Serial Monitor window. 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. The A4988 is a complete microstepping motor driver with a built-in translator for easy operation with minimal control lines. All this time I observed that the driver got hot quite a lot and that's it. The driver features adjustable current limiting, overcurrent and overtemperature protection, and five different microstep resolutions (down to 1/16-step). Using Arduino Motors, Mechanics, Power and CNC. Output Drivers Load Supply Voltage Range VBB Operating 8 – 35 V Logic Supply Voltage Range VDD Operating 3. The Library Manager should open. e. Each signal sent by the spin step pin, the motor rotates one step. Let’s get started with the hardware connections! A4988 Step Driver có thể dùng cho Reprap trong máy in 3D kèm với board RAMPS 1. A4998 Stripboard A4998-Rev11-Gerbers. $7. a) Do. 2- Universal G-Code Sender V2. To connect an A4988 Stepper Motor Driver to an Arduino, follow these steps: Connect the VDD pin and GND pin (next to VDD) on the A4988 to the 5V and Ground pins of the Arduino, respectively. TB6600 Stepper Motor Driver with Arduino Tutorial The A4988 driver chip has several safety functions built-in like overcurrent, short circuit, under-voltage lockout, and over-temperature protection. 5pcs A4988 Stepstick Stepper Motor Driver Module with Heat Sink for 3D PrinterStepper motor driver Allegro’s A4988 DMOS Micro-stepping Driver with adjustable current limiting, overcurrent and overtemperature protection, and five different micro step resolutions (down to 1/16-step). ) It is a chopper microstepping driver based on the Allegro A4988 driver chip. 5000; Functional Description Device Operation. As a tool it has an laser module attached so this machine is actually a CNC laser engraver. Ramps 1. 5V. 4 working properly. The driver has a STEP pin, which causes the motor to step when it goes from low to high, and a DIR pin that sets the direction. The A4988 is a complete Microstepping Motor Driver with built-in translator for easy operation. Description. Installation. Pricing and Availability on millions of electronic components from Digi-Key Electronics. I even tried increasing the current from driver via the potentiometer on it but none of these worked. stepper motor driver drv8825. Plug the shield into an Arduino board and load the GRBL Firmware following the steps bellow: Download the GRBL source code. 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. There are no phase sequence tables, the high. Allegro's A4982 / A4984 / A4985 and A4988 devices are complete microstepping motor drivers with a built-in translator for easy operation and overcurrent protection. 1. The wiring is done as shown below with few exceptions: Enable, MS1, MS2 & MS3 pins are. Hello friends, I hope you all are doing great. Ive read somewhere that the correct current limit on 28byj-48 is somewhere between 0. 2. Description. Quantity. A stepper motor driver usually accepts a step and direction signal as inputs. 4988-DSFeatures and Benefits Low RDS(ON) outputs Automatic current decay mode detection/selection Mixed and Slow current decay modes Synchronous rectification for low power dissipation Internal UVLO Crossover-current protection 3. Data diperbaharui pada 22/11/2023. The DRV8825 has a larger maximum supply voltage (45 V vs. I am using the A4988 and will like to know if there is anyway of detecting that the A4988 is driving the stepper motor to the maximum or minimum stop position. Microstep Selection Pins: The A4988 driver has three-step resolution selector inputs, i. 5 amp motor I would be looking for a driver than can provide 5 amps. Keep the red wire and connector for the next step !5. Quantity: (Order in multiples of 5) backorders allowed. The board has a simple step and direction control interface and five different step. 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. I have included it in response to several. The voltage fed to the Analog pin of ESP8266 can be used as a reference voltage to control the speed of the Stepper Motor. A. 2 v. , Ltd. This driver module has a built-in translator that means that we can control the stepper motor using very few pins from our controller. In conclusion, the NEMA17 stepper motor, combined with the A4988 driver and the ESP8266 WiFi module, offers a powerful and flexible solution for precise motor control in applications such as 3D printing and robotics. DMOS Microstepping Driver with Translator And Overcurrent Protection A4988 Allegro MicroSystems, LLC 7 115 Northeast Cutoff Worcester, Massachusetts 01615-0036 U. Previous. micro stepper motor driver. 1-0. and Overcurrent Protection. The stepper motor driver based on the Allegro A4988 (also A4983) has a lot of problems with temperature. When set to a logic low, the internal control enables the. Add to wish list. . 2. This module can be used on its own (controlled by a microcontroller), or used with a RepRap compatible RAMPS shields. The A4988 is a micro-striding driver for governing the stepper motors, it is incorporated with the interpreter (translator) for the tranquil process. Basado en el chip Allegro A4988. 5000; Device Operation. HiLetgo 5pcs A4988 Stepstick Stepper Motor Driver Module with Heat Sink for 3D Printer Reprap Suitable for Mendel Huxley Arduino. 800×800 76. Minimum operating voltage: 8 V. 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 driver allows for versatile operation of the motor, while the ESP8266 enables remote control over WiFi. 99 $ 29. 2 V to 45 V and can deliver up to approximately 1. 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). Step signals resemble PWM signals and are used for making steps. Please see the A4988 Stepper Motor Driver Carrier product page for more. This article is going to talk about the features, and applications of A4988. i connected my arduino mega to my. 8 KB. 4 Playlist:A4988 driver Stepper Motor Driver is a complete micro-stepping motor driver with built-in converter, easy to operate. Author: Laurentiu Badea Maintainer: Laurentiu Badea A4988 Stepper Motor Driver Carrier (Header Pins Soldered) This version of our A4988 Stepper Motor Driver Carrier ships with male header pins installed, so no soldering is required to use it with an appropriate 16-pin socket or solderless breadboard. 75 Volts and 28 DC. 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. 5A8*0. It operates from 8. 9A. acroscene February 23, 2022, 11:11am 1. 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. The national American Airlines flight AA4998 / AAL4998 departs from Los Angeles [LAX], United States and flies to Denver City [DEN], United States. In this video we will go over how to use the A4988 Stepper Motor Controller with Arduino UNO and NodeMCU. 2 board? all the other driver options seem to be present including a workaround for the TMC2225 and TMC2226 drivers where the #define of another driver is advised. The driver features adjustable current limiting, overcurrent and overtemperature protection, and five different microstep resolutions (down to 1/16-step). 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. 2 V to 45 V and can deliver up to approximately 1. By setting appropriate logic levels to those pins we will set the motors to at least one of the five-step resolutions. . x. Using this Nema 17 motor driver module, we can control stepper motor by using only two pins, i. 1mm when you tell it to, its not likely firmware but try to lower acceleration and speed. Motor power is provided by external N-channel power MOSFETs at supply voltages from 12 to 50 V. Included hardware. The A4988 Driver is very cool, as it works with. Please double-check the flight number/identifier. This breakout board for TI’s DRV8825 microstepping bipolar stepper motor driver features adjustable current limiting, over-current and over-temperature protection, and six microstep resolutions (down to 1/32-step). Do you know any library which need 3 pin (Step, direction, enable) and can drive stepper motors with acceleration and deceleration. NextPCB offers first 2-layer 100 X 100 mm PCB with 0$ : PCB - 12$ : am using an A4988 Stepper Motor Driver, which is controlled with an STM32F767ZI on a Nucleo 144 board. The Big Easy Driver requires 15mA to operate, and the voltage regulator that outputs VCC can only supply 100mA. The driver features adjustable current limiting, overcurrent and overtemperature protection, and five different microstep resolutions (down to 1/16-step). It is small, very cheap, and easily available even in remote electronics markets. 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. So, after this adjustment and measuring it with the multimeter I connected the motor to the driver (Red wire to 2A, Blue wire to 2B, Green wire to 1A, Black to 1B). It is. Construction is based on 3d Printer design. 2 A. Description. 4- a CNC arduino shield V3 1. A4988 Stepper Motor Driver Pinout and technical specifications The A4988 is a complete microstepping motor driver with built-in translator for easy operation. Some DRV8825's can now be had for as low as $1. These drivers have become. Si necesita controlar motores paso a paso más grandes como el NEMA 23, eche un vistazo al controlador de motor paso a paso TB6600. A4988 Product details. A4988 driver:. Maximum logic voltage: 5. Synchronous ractification ability with less power loss. 8° step angle (200 steps/revolution). Je reprends les gran. The TMC2208 driver board program, as announced on the TMC2208 official website, is completely compatible with the existing A4988 driver module. pdf","path":"Wally340/ArduinoShield_OpenKnit. It has 3 stepper motor (2 for the base movement and 1 for the Vertical left or Vertical Right). It operates from 8 – 35 V and can deliver up to 2 A per coil. DRV8825. IDX và *. It can drive almost any bipolar stepper motor and can deliver up to 2 Amperes of current per coil. How to use the A4988-stepperDriver library. This product is available in full, half, 1/4, 1/8 and 1/16 step modes operate bipolar stepper motors, output drive capacity of up to 35 V and ± 2 A. The document explains how to use the board, how to configure the microstep resolution, how to set the current limit, and how to interface with different types of stepper motors. A4988 Stepper Motor Driver Carrier (Header Pins Soldered) This version of our A4988 Stepper Motor Driver Carrier ships with male header pins installed, so no soldering is. The DRV8825 has a larger maximum supply voltage (45 V vs. 25. 15 v. Arduino と A4988 でステッピングモーターを制御する方法. driver board to motor (this varies from motor to motor, check motor coils schematic). We will use it to send commands from an Arduino or NodeMCU to control how the stepper motor moves. 2156-A4988SETTR-T. Conclusion. A driver board/shield with a constant voltage driver, such as the Adafruit Motor Shield. It has 200 steps per revolution, and can operate at at 60 RPM. It is intended to do the same job that the A4988 does. 2 or 1. 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. How the code works: The first step is to include the library with #include . wokwi-7segment. When powered, the motor simply flickers and stutters, but moves at a negligible speed. NEMA17 Stepper Motor. To adjust the potentiometers you will need a 3D Printer / CNC board to plug the drivers (e. 6 kg/cm Rotor Inertia: 300 g/cm2 The driver i am using is a a4988 Polulu with 2Amps maximum current. A4988. There’re 3 slots in the board for stepper motor drive modules, can drive 3 stepper motors, and each step stepper motor only need two IO port, that is to say, 6 IO ports can quite well to manage three stepper. 5. (fast, powerfull, silence, dont skip steps, but I have to cool the driver with a fan) I do not understand why EasyDriver is working well, because based on datasheets and forums EasyDriver current capacity is much smaller, what. This stepper motor driver lets you control one bipolar stepper motor at up to approximately 1. New Price: ₹ 149. 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. The next step is to define the DRV8825 to Arduino connections and the motor interface. What I am trying to accomplish is to allow for a stepper motor, (powered by an A4988 driver) to move with the push of a button. Each segment is set by the M0, M1, M2 pin header in the Arduino CNC Shield V3. . US$ 1. S. 99. This problem has been solved! You'll get a detailed solution from a subject matter expert that helps you learn core concepts. Cheers. 5 V. 5 A per phase without a heat sink or forced air flow (rated for up to 2. I plan to control them with raspberry pi 3B+. . 01 Ounces; Date First Available. The A4988 is a complete microstepping motor driver with a built-in translator for easy operation with minimal control lines. Klipper can also use Trinamic drivers in their "standalone mode". If the correct current flows in the first coil turn everything off and connect the multimeter in the wire for the second coil. You provide a step direction and an instruction to step, and it does the stepping for you. The A4988 stepper motor driver carrier comes with one 1×16-pin breakaway 0. In conclusion, the NEMA17 stepper motor, combined with the A4988 driver and the ESP8266 WiFi module, offers a powerful and flexible solution for precise motor control in applications such as 3D printing and robotics. The A4988 driver Stepper Motor Driver is a complete micro-stepping motor driver with built-in converter, easy to operate. $egingroup$ Recall that the motors are rated at 4. Step 1: Datasheet. This is a bulk-packaged version of our A4988 Stepper Motor Driver Carrier that ships without header pins. The STEP and DIR pins are connected to Arduino digital pins 3 and 2 respectively. large (for low voltage operation at any rate). Como en la mayoría de los controladores de motores el componente fundamental es un puente-H. A4988 Stepper Motor Driver User Guide. A4998 Datasheet, A4998 PDF. 2 kg-cm. The A4988 is a complete Microstepping Motor Driver with built-in translator for easy operation. A. A4988 Stepper Motor Driver Pinout and technical specifications The A4988 is a complete microstepping motor driver with built-in translator for easy operation. VMOT, GND: This is the stepper motor power supply pins. 2 A at 4 V, allowing for a holding torque of 3. 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. I saw that the pin-outs were the same as long as the boards themselves aligned the enable pins on the shield. It is designed to operate bipolar stepper motors in full-, half-, quarter-,. 83. 0 changes the normal run current from 0-100%. Step 1: Using A4988. For a AccelStepper::DRIVER (interface==1), this is the Step input to the driver. 000. . 3V to 5. 2156-A4988SETTR-T. Download here. 7 115 Northeast Cutoff Worcester, Massachusetts 01615-0036 U. Microstepping is supported. SnapMagic Search is a free library of symbols & footprints for the A4988 STEPPER MOTOR DRIVER CARRIER by Pololu and for millions of electronic components. It consists of a pair of H-bridges and some extra drive logic to provide a simple GPIO interface. 19 ($2. The A4988 is a complete microstepping motor driver with built-in translator for easy operation. 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. IDX. 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. That can range from 3. 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. PCB design considerations for running 48 stepper motors. 1,500. A4988 is a complete microstepping motor driver with built-in translator for easy operation. The driver features adjustable current limiting, overcurrent protection, and five different microstep resolutions. FREE delivery. For controlling it we are using an Arduino UNO board in combination with a CNC shield and two DRV8825 stepper drivers. If the current is too high for the heat sinking, the motors will pulse as the current is interrupted and restored. Pololu A4988 stepper driver - A4988-based; equivalent to A4983-board but offers overcurrent protection. The A4988 driver is a versatile stepper driver for controlling stepper motors for various applications. However if I adjust the current limit to around 0. 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). Connect 8-35V external power supply with VMOT and common ground. -Brandon. This allows you to control a bipolar stepper motor, such as the NEMA 17, at up to 2A output. 4-Motor GCODE controller - Type "G00 X10 Y25" to move the first motor 10 steps, and the second one 25 steps. It operates from 8 – 35 V and can deliver up to approximately 1 A per phase without a heat sink or forced air. $9. 2 VPart 3A: Stepper driver settings (hold current and step interpolation) Hold current: this value is set from 0. This i pretty much my setup but instead of 3. The second has the same pinning as the DRV8825. Please slide to verify. Our Black Edition A4988 stepper motor driver carrier is a higher-performance drop-in replacement for the original A4988 stepper motor driver carrier. g. The A4988 is a complete microstepping motor driver with a built-in translator for easy operation with minimal control lines. Manufacturer: List of Unclassifed Manufacturers. I am experimenting with a stepper motor NEMA23 with the following specifications: Rated current: 2. 000. An Arduino controls the stepping sequence. A4988 Driver jar is located in target/A4988Driver-VERSION. These A4988 control using a button + switch - press the green button to move the motor one step, and move the switch to change the direction. So, to set our driver to 1A, we need to set our Vref to 1/2 = 0. Source from Guangzhou Weide Electric Machinery Co. 6″ × 0. Continuous current per phase: 1 A. 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. It will shut itself down if it's too hot. Minimum logic voltage: 3 V. Je vous invite bien sûr à consulter la datasheet du driver A4988 (je mets le lien en fin d’article) pour de plus amples informations. L298N Module can control up to 4 DC motors, or 2 DC motors with directional and speed control. A4988 Datasheet (PDF) - Allegro MicroSystems. CNC Shield V3 merupakan papan ekspansi dari Arduino, berfungsi sebagai papan ekspansi driver A4988, bekerja pada 12-36V DC. How the code works: The first step is to include the library with #include . This stepper motor driver lets you control one bipolar stepper motor at up to 2 A output current per coil. 499 only at Robu. Find more details, circuit schematics and sourc. :) Cheers, Bantum. After installing the SSD1306 library from Adafruit, type “ GFX ” in the search box and install the library. Logic Input (V) 3 ~ 5. 853. 6 x 3. The driver has a maximum output capacity of 35 V and ± 2 A. CNC Shield V3 Engraving Machine. There is a built in translator which allows only two pins from the. 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. So I bought A4998 drivers A4998, as it says it could drive up to 2A per phase. com for more Tutorials, Tips, Projects and. At the same time, this stepper motor driver is used for industrial equipment, such as home appliances, printers and so on. It has two voltage regulators (5 V and 3. AFAIK none of the stepper motor drivers that can provide 3. 5. 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. If it's not one of those problems, the A4988 chip might have an issue. 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. Supports full-step, half-step, 1/4-step, 1/8-step and 1/16-step. 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. Close windowThis statement is almost true (doesn't take into account voltage drops in the driver circuit), but is intended to show the minimum requirements, for the stepper motor, in order to drive it to it's rated current (using a chopper drive). 80, whereas a similar set of five Made in China DRV8825 stepper driver boards is available for around $10. The MS1 and MS2 pins must be pulled high in order for the TMC2208 driver to provide 256 subdivision effects. zip: 2023-04-04: 39. It is designed to operate. One for the stepper motor power and the other to power the A4988 driver module. It can operate bipolar stepper motors in full-, half-, quarter-, eighth-, and sixteenth-step modes. MG90S Datasheet. A. A4988 Stepper Motor Driver Module for Pololu RepRap 3D Printer StepStick (Pack of 2)Hoje vamos criar um programa capaz de controlar um Motor de Passo utilizando um Arduino e um Driver A4988. The driver features adjustable current limiting, overcurrent and overtemperature protection, and five different microstep resolutions (down to 1/16-step). FREE delivery. Visit HowToMechatronics. Description. The maximum motor current can be found on the motor datasheet, ours is 0. This article is going to talk about the features, and applications of A4988 and DRV8825. 90 degrees on. When the current is too high, driver gets hot and steps get lost. It operates from 8 V to 35 V and can deliver up to approximately 1 A per phase without a heat sink or. The A4988 is a complete microstepping motor driver with built-in translator for easy operation. The driver requires a logic supply voltage (3 – 5. 5. A4988 Stepper Motor Driver – Technical Specifications. 1 Results. 853. Pre-flight Checklist. 0 can be used as a drive expansion board for engraving machines and need to be used with Arduino NANO. Here is a circuit diagram of the setup, with voltage readings taking from a. Control steppers via a driver board providing STEP+DIR like the ones from Pololu. . I am trying to move a NEMA17 motor (stepper motor) using a. This A4988 driver module which is used to control a stepper motor in a relatively simple manner. The Pololu page contains a warning that it will get hot enough to burn you in normal operation. ملاحظة: الفرق بين المنتج “A4988 driver Stepper Motor Driver- جودة عادية” و “A4988 driver Stepper Motor Driver- نوعية جيدة” هو أن الجودة الجيدة A4988 بها عدد أكبر من طبقات PCB وتتميز بمسامير التوصيل المطلية بالذهب بالمقارنة. 0. 8 Rated Voltage: 2. zip:Micro-stepping the motor has made it a lot smoother and quieter. Using Arduino Motors, Mechanics, Power and CNC. 1. Conserving battery life in a stepper motor circuit. 3 volt I will use 5v for the esp32 power supply and 12 volt for the stepper motor supply. These drivers are used to drive NEMA 17 motors on the Mill One. An A4988 is good for about 1. For the complete blog post visit: achieved this by using a Dasduino and a stepper motor with the associated A4988 driver. 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. 1 Features and working principle of A4988 1. Hello, I am using a NEMA 17 stepper motor and A4988 driver according to the following tutorial: Everything seems to work relatively well. 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. Like our original carrier, the Black Edition. 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. x you can define which stepper driver type is used to drive the stepper in the Stepper Drivers section. The shield came with A4988 stepper drivers and I got them to work fine, however the motors were much louder than intended so I went searching for another driver and found the TMC2208. En el caso del A4988 y DRV8825, destinados a controlar motores paso a paso, se dispone de dos puentes-H (uno por canal) constituidos por transistores MOSFET. . Get precise micro-stepping with A4988 stepper motor driver. It operates from 8 V to 35 V and can deliver up to approximately 1 A per phase. 1. The stepper motor library uses a timer which triggers an interrupt every 10us. 99. Low to high transition means to step) [in] pin2: Arduino digital pin number for motor pin 2. The A4988 can be used in 3D printers, CNC machines, robotics, and many other applications. Import package. 087mm mm 2. And it is difficult to set up with the potentiometer. Full-step, half-step, quarter-step, eighth-step, and sixteenth-step resolutions. Like for the above discussed 6 wire 2-phase (4V,1.