Questions tagged [a4988]
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.
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A4988 Jitter on stepper motor, some of the time
Hardware:
Arduino Uno Rev3
A4988 Driver
Nema 8 Stepper
Setup:
I've adjusted the VRef of the driver based on the formula VRef = Imot * 8 * Rsen. With the values of Imot = .5 (max = .6), Rsen = .068.
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Stepper motor not working with A4988 driver
I have been trying to run stepper motor via Arduino Uno and A4988 motor driver via this tutorial: https://howtomechatronics.com/tutorials/arduino/how-to-control-stepper-motor-with-a4988-driver-and-...
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accelstepper continuous rotation with forward and backward control
I am using Uno and the A4988 driver with nema17 motor and finally the Accelstepper, I want to make the motor run endlessly in a direction, but when I press a button I want it to stop and run in the ...
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CD rom stepper getting warm
I'm trying to run a SPS-15RF stepper motor from an old cd rom drive. I'm using a CNC shield and a4988 driver with a 6v power supply. The motion is smooth and fine. I know it has 18 pulse/revolution ...
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Need help with independent speed control on multiple steppers
I am a NOOB. I admit to a huge lack of understanding of programming. I just need my machine to work.
I cannot wrap my head around getting independent speed control of 2 steppers since it seems that ...
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Stepper motor only rotates once in a loop?
I am quite new to this , I am trying to program two motors , aStepper and bStepper.
I want the program to rotate aStepper then rotate the bStepper and when that is done rotate aStepper again , and ...
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Motor keeps spinning crazily after UNO board reset
I'm using a NEMA 17 stepper motor with A4988 motor driver and Arduino Uno board. I have used full microstepping (1/16th, so one revolution = 3200 steps).
I'm coming across this strange problem. ...
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ESP32 + Stepper Motor 17HS3401S + A4988 driver. Stepper cannot move in Clockwise direction
/*
* Basic example code for controlling a stepper with the AccelStepper library
*
* by Dejan, https://howtomechatronics.com
*/
#include <AccelStepper.h>
const int DIR = 12;
...
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Using an A4988 stepper motor driver for a low current (15mA) stepper motor
I have a BKA30DR5 stepper motor that operates at 15mA. I want to drive it using an A4988 stepper motor module. I've previously driven stepper motors that use much higher currents (around 1A) ...
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AccelStepper.h - How can I quickly increase the speed of the NEMA 17 motor?
I'm pretty new to Arduino. I am trying to build a Self-balancing robot. I am using A4988 drivers, ESP32 microcontroller, NEMA 17 motors and a 6050 MPU.
The problem is that, although the speed variable ...
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