#14316
I have bought this two "2×15A DC Motor Driver" from DFROBOT. However, I encountered with some problems

Image
Image

https://www.dfrobot.com/product-796.html

I applied the sample code thy gave us and I checked my wiring and battery too and when I click "w-s-a-d-x" on serial monitor, the motor driver's leds are working. However, my motors are not working as visually even move forward, backward etc commands are working as the leds are indicating on the motor driver...

Do you know what might the cause of this ? thank you. I use arduino mega 2560 r3 & UNO and arduino version 1.8.5

I used these for UNO
int E1 = 5; //M1 Speed Control
int E2 = 6; //M2 Speed Control
int M1 = 4; //M1 Direction Control
int M2 = 7; //M1 Direction Control

I used these pins for Mega
int E1 = 45; //M1 Speed Control
int E2 = 46; //M2 Speed Control
int M1 = 44; //M1 Direction Control
int M2 = 3; //M1 Direction Control

This is the sample code thy gave in their website:
Code: Select all
int E1 = 5;     //M1 Speed Control
int E2 = 6;     //M2 Speed Control
int M1 = 4;     //M1 Direction Control
int M2 = 7;     //M1 Direction Control
int counter=0;

void stop(void)                    //Stop
{
  digitalWrite(E1,0); 
  digitalWrite(M1,LOW);    
  digitalWrite(E2,0);   
  digitalWrite(M2,LOW);    
}   
void advance(char a,char b)          //Move forward
{
  analogWrite (E1,a);      //PWM Speed Control
  digitalWrite(M1,HIGH);    
  analogWrite (E2,b);    
  digitalWrite(M2,HIGH);
}  
void back_off (char a,char b)          //Move backward
{
  analogWrite (E1,a);
  digitalWrite(M1,LOW);   
  analogWrite (E2,b);    
  digitalWrite(M2,LOW);
}
void turn_L (char a,char b)             //Turn Left
{
  analogWrite (E1,a);
  digitalWrite(M1,LOW);    
  analogWrite (E2,b);    
  digitalWrite(M2,HIGH);
}
void turn_R (char a,char b)             //Turn Right
{
  analogWrite (E1,a);
  digitalWrite(M1,HIGH);    
  analogWrite (E2,b);    
  digitalWrite(M2,LOW);
}
void current_sense()                  // current sense and diagnosis
{
  int val1=digitalRead(2);            
  int val2=digitalRead(3);
  if(val1==HIGH || val2==HIGH){
    counter++;
    if(counter==3){
      counter=0;
      Serial.println("Warning");
    }  
  } 
}

void setup(void) 
{ 
  int i;
  for(i=4;i<=7;i++)
    pinMode(i, OUTPUT);  
  Serial.begin(19200);      //Set Baud Rate
  Serial.println("Run keyboard control");
  digitalWrite(E1,LOW);   
  digitalWrite(E2,LOW); 
  pinMode(2,INPUT);
  pinMode(3,INPUT);
} 

void loop(void) 
{
  /*
  static unsigned long timePoint = 0;    // current sense and diagnosis,if you want to use this 
   if(millis() - timePoint > 1000){       //function,please show it & don't forget to connect the IS pins to Arduino                                             
   current_sense();
   timePoint = millis();
   }
   */
  if(Serial.available()){
    char val = Serial.read();
    if(val != -1)
    {
      switch(val)
      {
      case 'w'://Move Forward
        advance (255,255);   //move forward in max speed
        break;
      case 's'://Move Backward
        back_off (255,255);   //move back in max speed
        break;
      case 'a'://Turn Left
        turn_L (100,100);        
        break;       
      case 'd'://Turn Right
        turn_R (100,100);
        break;
      case 'z':
        Serial.println("Hello");
        break;
      case 'x':
        stop();
        break;
      }
    }
    else stop();  
  }

}
#14320
I am using "313 RPM HD Premium Planetary Gear Motor":
sırma aykut wrote:
Mon Mar 12, 2018 9:50 am
Voltage (Nominal) 12V
Voltage Range (Recommended) 6V - 12V
Speed (No Load)* 313 rpm
Current (No Load)* 0.52A
Current (Stall)* 20A
Torque (Stall)* 416.6 oz-in (30 kgf-cm)
Gear Ratio 27:1
Gear Material brass primary, nylon secondary, steel tertiary
Gearbox Style Planetary
Motor Type DC
Motor Brush Type Graphite
Output Shaft Diameter 6mm (0.236")
Output Shaft Style D-shaft
Output Shaft Support Dual Ball Bearings
Electrical Connection Male Spade Terminal
Operating Temperature -10°C ~ +60°C
Mounting Screw Size M3 x 0.5mm
Product Weight 330g (11.64oz)
My power supply for the motor driver is 4000mAh 3 Cell & 11.1V 30C Lipo Battery
#18620
sırma aykut wrote:
Mon Mar 12, 2018 9:50 am
I am using "313 RPM HD Premium Planetary Gear Motor":
sırma aykut wrote:
Mon Mar 12, 2018 9:50 am
Voltage (Nominal) 12V
Voltage Range (Recommended) 6V - 12V
Speed (No Load)* 313 rpm
Current (No Load)* 0.52A
Current (Stall)* 20A
Torque (Stall)* 416.6 oz-in (30 kgf-cm)
Gear Ratio 27:1
Gear Material brass primary, nylon secondary, steel tertiary
Gearbox Style Planetary
Motor Type DC
Motor Brush Type Graphite
Output Shaft Diameter 6mm (0.236")
Output Shaft Style D-shaft
Output Shaft Support Dual Ball Bearings
Electrical Connection Male Spade Terminal
Operating Temperature -10°C ~ +60°C
Mounting Screw Size M3 x 0.5mm
Product Weight 330g (11.64oz)
My power supply for the motor driver is 4000mAh 3 Cell & 11.1V 30C Lipo Battery
Both UNO and Mega not working? Could you attach the wiring?
#43541
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