* * Created by * * This example code is in the public domain * * Tutorial page: */ # include # define DEG_PER_STEP 1. Therefore, we need a hardware driver in between Arduino and the stepper motor.
However, the signals from Arduino do not have enough voltage and/or current that the stepper motor requires. How to control a stepper motor using ArduinoĪrduino can generate signals to control the stepper motor. STEP_PER_REVOLUTION = (360 / DEG_PER_STEP) * nįor example, If the motor's datasheet specifies 1.8 degree/step: Control method STEP_PER_REVOLUTION = (360 / DEG_PER_STEP) * 2 Depending on the method of control, the steps per revolution (let's call STEP_PER_REVOLUTION) is calculated as the following table: Control method The motor's specification specifies the degree per step (let's call DEG_PER_STEP). The above image also shows the specification of two different motors with different wire naming and wire coloring. L298N Module can control up to 4 DC motors, or 2 DC motors with directional and speed control. This module consists of an L298 motor driver IC and a 78M05 5V regulator.
You need to read the datasheet or manual to see the mapping between wire color and pin name. This L298N Motor Driver Module is a high power motor driver module for driving DC and Stepper Motors. After turning the motor on once, the power supply continues to output 6 volts and 2 amps even when the motor is off.The order of pins, wire naming, and wire coloring can vary between manufacturers. When turning on the motor, the power supply is outputting around 6 volts and 2 amps. Before turning on the motor, the variable power supply is outputting (based on the display) 18 volts and 0.01 amps. I have set the variable power supply to 18 volts.
In attempt to supply more voltage to the motor, I have now removed the 5V_EN jumper and am inputting 5 volts from the Arduino to power to driver circuit. I am controlling the motor driver with an Arduino and am powering the motor driver with a variable DC power supply. I am trying to use the motor to turn a valve, but there is not enough torque so the motor is skipping steps. I am using an L298N motor driver with a Nema 17 stepper motor.
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