Please let me know if you still have questions. You might also find this thread helpful: A4983 and A4988 Getting Started Guide You will also need to connect a motor power source to VMOT and GND. Other than that, you should short the VDD pin to the 5V pin above it as shown in the motor driver’s simple connection diagram: connect GND from your Arduino to one of the GND pins on the motor driver board). This will control the speed of the motor. The EN A pin of IC is connected to the PWM pin 2 of Arduino. These two digital pins of Arduino control the direction of the motor. I think 5v from the arduino goes to the opto pin, any 2 digital pins go to the pul and dir pins and I dont necessarily need to u. IN1 pin of the L298 IC is connected to pin 8 of the Arduino while IN2 is connected to pin 9. Learn how to control a small dc motor while using an Arduino Mega 2560 microcontroller. I have sorted out how to hook up the motor and 24v power supply to the M325 but I would like some clarification on how to wire the arduino into the opto, pul, dir and ena pins. Since your Arduino has a built-in regulator and is likely being powered separately, you do not need to connect 5 V (VDD) from the motor driver board to the Arduino, but you do need to make sure they have a common ground (i.e. This video corresponds with Lesson 29 from the Elegoo Mega Most Compl. For your stepper motor, the black and green wires make up the ends of one motor coil, and the red and blue wires make up the ends of the other motor coil, so one way to connect it would be:ġA and 1B connect to black and green (which goes to which does not matter)Īs far as making connections to your Arduino, the simplest scenario requires two I/O lines from the Arduino (you can choose any lines you want), one connected to the motor driver’s STEP pin and the other connected to the DIR pin.
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