Beginner confused with L293D motor driver board

Using Arduino Motors, Mechanics, Power and CNC
1

Hi,

I am teaching myself to build a robot. My knowledge on electronic is pretty basic so need to learn lot of stuff and Arduino seem to give good start. After Googling I understand I need L293D motor driver board to control DC motor. So I brought one online. L293D motor driver board looks pretty different to the one I saw in the tutorial video(Tenet Technetronics: L293D Motor Driver Breakout Board - YouTube) but board still has L293D chip but the pins seem to be in different place and named differently. I could guess few small things apart from that I totally confused how to use this board.

After seeing the attached image of L293D board, if anyone could tell me how can I connect this board with my Arduino UNO board that would be great and please use novice language to explain.

Thank you very much in advance.

L293D board.jpg
L293D board.jpg1531×1053 484 KB

2

Ohm out the PCB and the draw us a schematic.
.

3

A1 and A2 are probably analogous to IN1 and IN2
And
B1 and B2 -----> IN3 and IN4

4

Thanks LarryD.

This is what I tried connect one Dc motor to "Motor 1" pins, connect 5V and GND from Arduino to + and - , connect A1 to 3 and connect A2 to 13. I tried the following code with no luck.

var five = require("johnny-five"),
board = new five.Board();

board.on("ready", function() {
var motor;
/*
Motor 1
pwm: 3
dir: 12
*/

motor = new five.Motor({
pins: {
pwm: 3,
dir: 12
},
invertPWM: true
});

board.repl.inject({
motor: motor
});

motor.on("start", function() {
console.log("start", Date.now());
});

motor.on("stop", function() {
console.log("automated stop on timer", Date.now());
});

motor.on("forward", function() {
console.log("forward", Date.now());

// demonstrate switching to reverse after 5 seconds
board.wait(5000, function() {
motor.reverse(255);
});
});

motor.on("reverse", function() {
console.log("reverse", Date.now());

// demonstrate stopping after 5 seconds
board.wait(5000, function() {
motor.stop();
});
});

// set the motor going forward full speed
motor.forward(255);
});

Am I missing something , Please let me know

Thank you

5

vtsr60:
I tried the following code with no luck.
...
Am I missing something

Yep, you're missing any Arduino code. Not sure what yours is, but it isn't for an Arduino. Arduino programs look like this:

//constants and stuff up here

void setup() {
  // put your setup code here, to run once:

}

void loop() {
  // put your main code here, to run repeatedly:

}

You probably need to back up a bit and go to the tutorials, and then look at a 293 tutorial like this one (although it uses a loose chip not a board like yours).