L293D Motor Controller Tutorial




L293D is a chip that enable us to control two motors together with only one Arduino board or other microcontrollers. However, I was having a project that required controlling four DC motors together. Recently i brought a L293D Arduino Shields , it covered all of my pins that i need to use them to connect with other breakout board to combine with the motor controller (of course you can buy a L298N motor controller) . I made it, so i decided to share it with u guys now. So let’s get started.

L293D Motor Controller Tutorial




Step 1: Collecting Parts and Programs

In this project, you needed these parts :
1.Aruduino Uno R3 (you can also use the other version of Arduino)

2.L293D chips x2

3.BreadBoard(i am using a breadboard mini)

4.BreadBoard pins(i don’t know whether it’s called Breadboard Pins or not but I am gonna say it that way)

5.Jumper cables

Programs :

You will need Arduino IDE to programs your Arduino ( you can download it from here https://www.arduino.cc/en/Main/Software ) , then download the sketch that i attached and open it up.

Step 2: Connecting the Component

1.Connect the pins with following (did this on both L293D chips):

Enableand VCC( Vss/Vs in the schematics ) —> 5v pins (connect Vss,Vs,Enable 1,Enable 2 to 5v pins on Arduinno)

-all GND —> GND

2.First L239D (the left one) :

**L293D —> Arduino

pin 2 (input 1) —> pin 5

pin3 (output 1) —> pin + on DC motor

pin 6 (output 2) —> pin – on DC motor

pin 7 (input 2) —> pin 6

pin10 (input 3) —> pin 2

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pin 11 (output 3) —> pin – on DC motor

pin 14 (output 4) —> pin + on DC motor

pin 15 (input 4) —> pin 1

3.Seconds L239D (the right one) :

**L293D —> Arduino

pin 2 (input 1) —> pin 7

pin 3 (output 1) —> pin + on DC motor

Read more: L293D Motor Controller Tutorial

 




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