motor state is not changing

Projects Programming
1

anyone can help me...

i have written a 2 motor drive bot program.
but in this program motor state is not changing its only moving forward.

please check my code.

const int RMF = 5;
const int RMB = 6;
const int LMF = 3;
const int LMB = 4;

void setup() {

pinMode (RMF, OUTPUT);
pinMode (RMB, OUTPUT);
pinMode (LMF, OUTPUT);
pinMode (LMB, OUTPUT);

}

void loop() {

delay (3000);
//to move forward.

digitalWrite(RMF, HIGH);
digitalWrite(RMB, LOW);
digitalWrite(LMF, HIGH);
digitalWrite(LMB, LOW);

delay(3000);
//to move backward.
digitalWrite(RMF, LOW);
digitalWrite(RMB, HIGH);
digitalWrite(LMF, LOW);
digitalWrite(LMB, HIGH);

delay(3000);
//take right turn.
digitalWrite(RMF, LOW);
digitalWrite(RMB, LOW);
digitalWrite(LMF, HIGH);
digitalWrite(LMB, LOW);

delay(3000);
//take left turn.
digitalWrite(RMF,HIGH);
digitalWrite(RMB, LOW);
digitalWrite(LMF, LOW);
digitalWrite(LMB, LOW);

delay(10000);
//to stop.
digitalWrite(RMF,LOW);
digitalWrite(RMB, LOW);
digitalWrite(LMF, LOW);
digitalWrite(LMB, LOW);

}

first_robo_car_2_wheel.ino (834 Bytes)

2

I don't see anything wrong with your code so it is probably a wiring problem. Make a simple pencil drawing showing clearly how everything is connected and post a photo of the drawing. See this Simple Image Guide

...R

3

To tell if the code is o.k. we need to know what motors you have and how you are driving them. I hope they are not connected directly to the Arduino pins.

Steve

4

anyone can help me...

i have written a 2 motor drive bot program.
but in this program motor state is not changing its only moving forward.

please check my code.

const int RMF = 5;
const int RMB = 6;
const int LMF = 3;
const int LMB = 4;

void setup() {

pinMode (RMF, OUTPUT);
pinMode (RMB, OUTPUT);
pinMode (LMF, OUTPUT);
pinMode (LMB, OUTPUT);

}

void loop() {

delay (3000);
//to move forward.

digitalWrite(RMF, HIGH);
digitalWrite(RMB, LOW);
digitalWrite(LMF, HIGH);
digitalWrite(LMB, LOW);

delay(3000);
//to move backward.
digitalWrite(RMF, LOW);
digitalWrite(RMB, HIGH);
digitalWrite(LMF, LOW);
digitalWrite(LMB, HIGH);

delay(3000);
//take right turn.
digitalWrite(RMF, LOW);
digitalWrite(RMB, LOW);
digitalWrite(LMF, HIGH);
digitalWrite(LMB, LOW);

delay(3000);
//take left turn.
digitalWrite(RMF,HIGH);
digitalWrite(RMB, LOW);
digitalWrite(LMF, LOW);
digitalWrite(LMB, LOW);

delay(10000);
//to stop.
digitalWrite(RMF,LOW);
digitalWrite(RMB, LOW);
digitalWrite(LMF, LOW);
digitalWrite(LMB, LOW);

}

i ve connected digital pin 3, 4, 5, 6 to motor IN 1, IN 2, IN 3 ,IN 4.

L298 Gnd To arduino GND,
L298 5V to arduino 5V,

Battery -ve to L298 GND and +ve to L298 12v.

Left motor connected to L298 on OUT 1, OUT 2.
Right motor connected to L298 on OUT 3, OUT 4.

5

@tambolideepak24, why are you repeating your question?

Did you read and carefully consider Replies #1 and 2 ? Or are the people just wasting their time trying to help you?

...R

6

For the left turn, you should have

digitalWrite(LMB, HIGH);

and right turn

digitalWrite(RMB, HIGH);

See here for example

7

please help

i have gone through the program and circuit so many times.
i had made changes which is suggested.

but all is vain motor is moving in forward direction only.

8

What does your L298 board look like? Can you provide a reference or a picture? Or maybe you use the bare circuit?

9

my bot picture is attached with it.

10

where ?

11

Help us help you. Provide a diagram or schematic of your circuit as you were asked.

12

thanks to all for your kind support.

now my bot moving according to my code.

here i made following changes in my code.

const int RMF = 5;
const int RMB = 6;
const int LMF = 3;
const int LMB = 4;

void setup() {

pinMode (RMF, OUTPUT);
pinMode (RMB, OUTPUT);
pinMode (LMF, OUTPUT);
pinMode (LMB, OUTPUT);

}

void loop() {

delay (3000);
digitalWrite(RMF, LOW);
digitalWrite(RMB, LOW);
digitalWrite(LMF, LOW);
digitalWrite(LMB, LOW);
delay(3000);

//forward
digitalWrite(RMF, HIGH);
digitalWrite(RMB, LOW);
digitalWrite(LMF, HIGH);
digitalWrite(LMB, LOW);
delay(5000);

digitalWrite(RMF, LOW);
digitalWrite(RMB, LOW);
digitalWrite(LMF, LOW);
digitalWrite(LMB, LOW);
delay(3000);

//backward
digitalWrite(RMF, LOW);
digitalWrite(RMB, HIGH);
digitalWrite(LMF, LOW);
digitalWrite(LMB, HIGH);
delay(5000);

digitalWrite(RMF, LOW);
digitalWrite(RMB, LOW);
digitalWrite(LMF, LOW);
digitalWrite(LMB, LOW);
delay(3000);

//right turn
digitalWrite(RMF, LOW);
digitalWrite(RMB, LOW);
digitalWrite(LMF, HIGH);
digitalWrite(LMB, LOW);
delay(5000);

digitalWrite(RMF, LOW);
digitalWrite(RMB, LOW);
digitalWrite(LMF, LOW);
digitalWrite(LMB, LOW);
delay(3000);

//left turn
digitalWrite(RMF,HIGH);
digitalWrite(RMB, LOW);
digitalWrite(LMF, LOW);
digitalWrite(LMB, LOW);
delay(5000);

digitalWrite(RMF,LOW);
digitalWrite(RMB, LOW);
digitalWrite(LMF, LOW);
digitalWrite(LMB, LOW);
delay(3000);

}