Example Code for Arduino-Motor Control

Hardware Preparation

• 1 x DFRduino UNO (or similar)
• 1 x DC Motor Driver
• 1 x DC Motor
• 1 x Fuse@20A
• Jumper wires

Software Preparation

• Arduino IDE Click to Download Arduino IDE from Arduino®.

Wiring Diagram

Facility Safety and the Personal Safety:
Please add a fuse@20A between the Power source and the module (9-36V).
The 5VO port is for 5V output for other module, can NOT be used as Power_In.

Installation Tips
The module needs a cooling system once your motor runs over 15 amps, like Electronics Blower Fan, Heatsink, etc.
The backside of the driver, as right-hand picture shows, that its conducting layer can be very wide, so you should take some measurements to ensure it won't short-circuit, like applying 1mm layer conductive epoxy or any other similar materials.

Important: Pluggable Connector
You may find that the connector is designed as pluggable type to adapt with Male or Female wires.

Sample Code

/*
* @file Motor driver DRI0042_Test.ino
* @brief DRI0042_Test.ino  Motor control program
*
* control motor positive inversion
*
* @author [email protected]
* @version  V1.0
* @date  2016-8-10
*/
const int IN1=5;
const int IN2=4;
const int PWM=6;

void setup() {
     pinMode(IN1, OUTPUT);
     pinMode(IN2, OUTPUT);
     pinMode(PWM, OUTPUT);
}

void loop() {
 Motor_Brake();
 delay(100);
 Motor_Forward(200);//Forward, PWM setting 0-255
 delay(3000);
 Motor_Brake();
 delay(100);
 Motor_Backward(200);//Reverse, PWM setting 0-255
 delay(3000);
}

void Motor_Forward(int Speed) {
     digitalWrite(IN1,HIGH);
     digitalWrite(IN2,LOW);
     analogWrite(PWM,Speed);
}

void Motor_Backward(int Speed) {
     digitalWrite(IN1,LOW);
     digitalWrite(IN2,HIGH);
     analogWrite(PWM,Speed);
}

void Motor_Brake(){
     digitalWrite(IN1,LOW);
     digitalWrite(IN2,LOW);
}

Result

You could see your motor run forward for 3 second and then run reversely for another 3 seconds and repeat this behavior then.