This example uses the stepper h library which should come pre installed with the arduino ide.
Stepper motor driver connection with arduino.
The a4988 driver chip has several safety functions built in like overcurrent short circuit under voltage lockout and over temperature protection.
This program drives a unipolar or bipolar stepper motor.
Clk and cw connect to gnd arduino.
You can watch that 5amp stepper driver video also.
Do not connect en and en to any arduino pin.
Teaches you how to use the stepper motor and driver in the arduino grove starter kit.
It only works for 1 8 step s3 and s4 on and 1 16 step s4 only on half and full bridge does not work for my case.
Start by connecting vdd and gnd next to vdd to the 5v and ground pins on the arduino.
In my previous video i made a 5amp stepper motor driver using tip122 and 127 mosfets and some other components.
Connections are fairly simple.
This driver can be used with the same code as the a4988 and has a current rating of 3 5 a.
Now that we know everything about the driver we will connect it to our arduino.
Connect your stepper to the driver.
In the previous article we used both an a4988 stepper module and an l298n h bridge to drive bipolar stepper motors with an arduino to drive a common nema 17 size motor.
If you want to learn the basics of l293d ic below tutorial is invaluable.
In this step you need to connect the wires from stepper to the driver most steppers have 6 wires three for one coil and three for second coil if you are not sure witch wire it s in the middle of the coil find it with ohm meter.
Parts list for stepper.
One of the easiest and inexpensive way to control stepper motors is to interface l293d motor driver ic with arduino.
Connect the stepper motor to the 2b 2a 1a 1b pins.
And the driver into the board.
For hardware connections plug the potentiometer into a0.
Stepper h library example code for l298n driver with stepper motor and arduino you can upload the following example code to your arduino using the arduino ide.
Bipolar stepper motors can be driven using dedicated modules or with h bridges.
Dir and step input pins are connected to 2 3 digital output pins on arduino respectively.
It can control both speed and spinning direction of any unipolar stepper motor like 28byj 48 or bipolar stepper motor like nema 17.
Adjust the potentiometer to change the speed of the motor.
The motor into the driver.
Stepper motor connection you need to know which color is a a b and b according to the stepper motor spec.
The motor will take one revolution in one direction then one revolution in the other direction.
By using this driver you can run high torque stepper motor which required up to 3amps.
The motor is attached to digital pins 8 11 of arduino.