DRI0018

  DC Motor Driver 2x15A Lite (SKU: DRI0018) From Robot Wiki    Contents     1 Introduction  2 Specification  3 Tutorial   o 3.1 Diagram  o 3.2 Sample Code    3.2.1 PWM mode   3.2.2 PLL mode  4 Trouble shooting  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 highperformance & 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.This DC Motor Driver module is directly compatible with Arduino. 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:   o Galvanic isolation to protect the microcontroller  o Dual current detection diagnostic functions  o Short circuit, overheating, over‐voltage protection  Size:73x68x14mm  For applications of more than 15A per channel o o Fast switching might damage the board, best to smooth it by software  Avoid higher rating motors, and use lower PWM whenever possible   Tutorial Diagram   DC Motor Driver 2x15A diagram  LA_IS,LB_IS,RA_IS & RB_IS is for current sense and diagnosis. In normal operation,the IS pin output a LOW level.In a fault condition,It will output a HIGH level.The following code will show you how to do.   LA_IS and RA_IS is used for Motor1.  LB_IS and RB_IS is used for Motor2.  Sample Code PWM mode /* /* # 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 1000){ orget to connect the IS pins to Arduino // current sense and diagnosis,if yo //function,please show it & don't f 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); break; case 'a'://Turn Left turn_L (100,100); break; case 'd'://Turn Right turn_R (100,100); break; //move back in max speed case 'z': Serial.println("Hello"); break; case 'x': stop(); break; } } else stop(); } } PLL mode DRI0018 motor drive also support PLL control mode.Data is as follows: "PLL mode"  pin   function   4   motor 1 enable control   5   motor 1 direction control   6   motor 2 direction control   7   motor 2 enable control   Demo data： //Standard DLL Speed control int E1 = 4; //M1 Speed Control int E2 = 7; //M2 Speed Control int M1 = 5; //M1 Direction Control int M2 = 6; //M1 Direction Control //When m1p/m2p is 127, it stops the motor //when m1p/m2p is 255, it gives the maximum speed for one direction //When m1p/m2p is 0, it gives the maximum speed for reverse direction void DriveMotorP(byte m1p, byte m2p)//Drive Motor Power Mode { digitalWrite(E1, HIGH); analogWrite(M1, (m1p)); digitalWrite(E2, HIGH); analogWrite(M2, (m2p)); } void setup(void) { int i; for(i=4;i