DC Motor Driver 2×15A - Lite

KR-SRC0003

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This DC Motor Driver can be used in 4WD mobile robot platforms,Combat robots, smart car competition, to drive pumps, electric fans, conveyors, etc

Introduction   

This DC Motor Driver can be used in 4WD mobile robot platforms,Combat robots, smart car competition, to drive pumps, electric fans, conveyors, etc... This module uses 4 high-performance & high-current driver chips——BTS7960 with the function of current short, over temperature,over voltage protection. You can control 2 motors with only 4 digital IO at the same time. Dual 15A@13.8V max output current,good responsiveness & braking performance. Four indicator leds are provided for easy and convenient debugging without motors. There are two AL Heat Sinks in the back of the module, to provide cooling for prolonged high-power working state. This DC Motor Driver module is directly compatible with Arduino.
 
 
Application
  • DC motor driver
  • 4WD high-power mobile robot platform 
  • Combat robots
  • Pumps
  • Electric fans
  • Conveyors
    
Specification
  • Input Voltage:4.8-35V
  • Maximum output current:15A@13.8V per channel
  • Peak output current:20A@13.8V per channel
  • PWM capability:up to 25 kHz
  • Interfaces:4 digital IO(2 PWM output include)
  • Driving mode:Dual high-power H-bridge driver
  • Other specifications
    • Galvanic isolation to protect the microcontroller
    • Dual current detection diagnostic functions
    • Short circuit, overheating, over-voltage protection
  • Size:73x68x14mm
     
Documents

 

Diagram

DC Motor Driver 2x15A diagram

Sample Code
/*
 /*
 # This Sample code is for testing the DC Motor Driver 2x15A_lite module.
 
 # Editor : Phoebe
 # Date   : 2012.11.6
 # Ver    : 0.1
 # Product: DC Motor Driver 2x15A_lite
 # SKU    : DRI0018
 
 # Description:     
 # Drive 2 motors with this DC Motor Driver module  
 
 # Hardwares:
 1. Arduino UNO
 2. DC Motor Driver 2x15A_lite  
 3. DC motors x2
 
 #Steps:
 1.Connect the M1_PWM & M2_PWM to UNO digital 5 & 6
 2.Connect the M1_EN & M2_EN to UNO digital 4 & 7
 3.Connect +5V & GND to UNO 5V & GND
 
 # Function for current sense and diagnosis,if you want to use
 please connect the IS pins to Arduino
 Connect LA_IS and RA_IS to UNO digital 2 at the same time
 Connect LB_IS and RB_IS to UNO digital 3 at the same time
 */

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();  
  }

}


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DC Motor Driver 2×15A - Lite

DC Motor Driver 2×15A - Lite

This DC Motor Driver can be used in 4WD mobile robot platforms,Combat robots, smart car competition, to drive pumps, electric fans, conveyors, etc

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