Introduction: Arduino : How to Control DC Motors With L293D Motor Driver

This instructable is the written version of my "Arduino : How To Control DC Motors with L293D Motor Driver" YouTube video that I've uploaded recently. I strongly recommend you to check it out.

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Step 1: Tutorial

Dual H-Bridge Motor Driver for DC or Steppers - 600mA - L293D

This is a very useful chip. It can actually control one motor independently. We will use in its entirety the chip in this tutorial. Pins on the right hand side of the chip are for controlling a one motor. Pins on the left hand side of the chip are for controlling second motor.

You can run four solenoids, two DC motors or one bi-polar or uni-polar stepper with up to 600mA per channel using the L293D.

Step 2: Hardware Required

  • Arduino
  • Dual H-Bridge L293D Motor Driver
  • DC Motors
  • Breadboard
  • Wires
  • Batteries

Step 3: Circuit & Connection

Each chip contains two full H-bridges (four half H-bridges). That means you can drive four solenoids, two DC motors bi-directionally, or one stepper motor. Just make sure they're good for under 600 mA since that's the limit of this chip.

There's a PWM input per driver so you can control motor speed. Runs at 5V logic. Good for motor voltages from 4.5V up to 36V! This wont work well for 3V motors. The motor voltage is separate from the logic voltage.

The L293D has two +V pins (8 and 16). The pin '+Vmotor (8) provides the power for the motors, and +V (16) for the chip's logic.

Normally we can connect both of these to the Arduino 5V pin. We used a powerful motor, or a higher voltage motor. So we provided the motor with a separate power supply using pin 8 connected to the positive power supply and the ground of the second power supply is connected to the ground of the Arduino.

Step 4: Code

Step 5: If I Was Helpful

First of all, I would like to thank you for reading this guide ! I hope it helps you.

If you want to support me, you can subscribe my channel and watch my videos.

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Comments

author
NiallM9 made it! (author)2017-05-27

does this work with a 48v motor

author
MukeshK86 made it! (author)2017-04-02

can i use this procedure to run brushless motor of 1800 kv?

author
vincent44 made it! (author)2016-11-09

do you have a code to include a sharp ir sensor ? thanks

author
ahmet_024102 made it! (author)2016-10-25

teşekkürler mert hocam

author
MertArduino made it! (author)MertArduino2016-10-25

Yorumun için bende sana teşekkür ederim. Ama "Hocam" sıfatını hak edecek bir şey yaptığımı düşünmüyorum. Ben sadece hobi olarak ilgileniyorum. Gerçek emekçilere haksızlık olmasın ;) Geçen gün sana bir adres yolladım, arduino başlangıcı ile ilgili. Hemen hemen tüm konulara oradan ulaşabilirsin bilgine.

author
ahmet_024102 made it! (author)ahmet_0241022016-10-26

evet gördüm. güzel eğitim dökümanları var teşekkürler
burda iyi paylaşımlar yapıyorsun eyvallah.
bende led üzerine bilgiliyim. led hakkında ne sorarsan cevap veririm. led tabela kayan yazı vs. elektronik mekatronik vs. otomasyon vs. biz burda türkçe yazıyoruz yabancılar kızıyordur :):)

have ı nice day diyimde bari kızmasınlar :)

About This Instructable

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Bio: For more projects and tutorial visit my YouTube channel Mert Arduino and Tech
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