Track wheel set and twin motor gearbox

Community General Discussions
1

hi guys!i have my arduino and the motor shield. the robot is in picture:

IMG_0216.jpg

 

The problem is: when i start the two motors, they go for a few moments and then they block, but i dont' know why. they should go costantly. help plz:)

2

What awesome tracks subvert gravity?

Quick question. Does your arduino reset? If that is not the case then I would imagine we will need some more information. It may be something as simple as your code doesn’t do what you think it should be doing.

3

Little more info

 

  • Have you determined that it is not a code issue?
  • What power source are you using?
  • Is the same power being used for data and motors?
  • Are the treads too tight?
  • Gears full of dog-hair?
  • Batteries full?
  • Battery voltage high enough above your volt reg requirements?
  • Are you trying to drive your robot straight down like that? --I think it is going to fall off the wall.
4

This is the code: #include

This is the code:

 

#include <AFMotor.h>

AF_DCMotor motor2(2, MOTOR12_64KHZ);
AF_DCMotor motor1(1, MOTOR12_64KHZ);
char message=0;
int FOT1 = 5;
int FOT2 = 4;

// this vars will be used in the loop function
int FOTVal1 = 0;
int FOTVal2 = 0;
int DiffVal=0;


void setup(){
  Serial.begin(9600);
  delay(500);
    motor1.setSpeed(200);
    motor2.setSpeed(200);
}

void loop(){
 
    FOTVal1 = analogRead(FOT1); 
    FOTVal2 = analogRead(FOT2);
    DiffVal=FOTVal1-FOTVal2;
   
    // print LDR values into the console
    Serial.print(“Differenza val”);
    Serial.print(DiffVal);
   
    if (DiffVal<=75){
      motor1.run(FORWARD);
      motor2.run(FORWARD);
    }else
    if (FOTVal1<FOTVal2){
      motor1.run(FORWARD);
      motor2.setSpeed(100);
      motor2.run(FORWARD);
    }else
    if (FOTVal2<FOTVal1){
      motor2.run(FORWARD);
      motor1.setSpeed(100);
      motor1.run(FORWARD);
    }

 

I think the problem is the external power supply for the motor shield. What battery i should use? i need to supply the small DC motors of the tamiya twin motor gearbox.

5

I think the problem is the

I think the problem is the power supply for the shield. i need to supply two small DC motors of the tamiya twin motor gearbox. what kind of battery i have to use?

6

I should add

I am guessing about the need for a second supply --You have not yet told us what you are using now.

7

for the motor shield supply

for the motor shield supply i used a 9v battery but the motors seem to go very slow. maybe the battery is spoiled?

8

thanks i would try it:)

thanks i would try it:)

9

There is your problem

The 9v battery can not supply the current you need. Try 4-6 AA’s instead.

10

Thanks a lot guys! it works:)

Thanks a lot guys! it works:)

11

Thi is strange: when the

Thi is strange: when the robot goes straight the motors don’t block; but when i command him to go backward the motors stop after one second. :frowning:

12

this is the situation:

this is the situation:

IMG_0217.jpg