L293D Motors Controller Module / Tutorial





Introduction: L293D Motors Controller Module / 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.

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

-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

-pin 6 (output 2) ---> pin - on DC motor

-pin 7 (input 2) ---> pin 8

-pin 10 (input 3) ---> pin 4

-pin 11 (output 3) ---> pin - on DC motor

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

-pin 15 (input 4) ---> pin 3

Tips : i brought a cheap breadboard that do not have a good quality, i meet a problem that i couldn't insert my breadboard pins into the breadboard , it just pop out after i inserted it in , for someone who meet the same problem with me , after u inserted your breadboard pins into the breadboard, simply press hard on the pins that u don't need to use into the breadboard just like what i didn't (refer it on the pictures that i attached above) , it will works well.

**Remarks : refer to the schematic for double confirmation , if spot any wrong pls comment and let me know

Step 3: Done !

Try it out and it should works well , comment below if yours didnt works .



    • Make it Move Contest

      Make it Move Contest
    • Casting Contest

      Casting Contest
    • Woodworking Contest

      Woodworking Contest

    We have a be nice policy.
    Please be positive and constructive.




    Did you power the motors with arduinos 5v output? Does it excede the maximum output current? Maybe you should use an external power supply

    1 reply

    yes, i used the 5v supply from the arduino , it just works well for me so far , of course you can use the external power supply