DRI0001

    Arduino Motor Shield (L293) (SKU: DRI0001)   Arduino Motor Shield (L293) V2 DRI0001 Contents      1 Introduction 2 Diagram 3 Pin Allocation 4 Sample Code 5 Schematics Introduction This motor shield allows Arduino to drive two channel DC motors. It uses a L293B chip which deliveries output current up to 1A (2A for L298P version) each channel. The speed control is achieved through conventional PWM which can be obtained from Arduino’s PWM output Pin 5 and 6. The enable/disable function of the motor control is signalled by Arduino Digital Pin 4 and 7. Roboduino Motor Shield uses PWM output Pin 6 and 9 and Digital Pin 7 and 8. The Motor shield is powered directly from Arduino. It is strongly advised that use external power supply (on Arduino) to power the Arduino instead of the USB power supply. Diagram Motor Shield V1 Motor Shield V2 Pin Allocation Pin Function Digital 4 Motor 2 Direction control Digital 5 Motor 2 PWM control Digital 6 Motor 1 PWM control Digital 7 Motor 1 Direction control Sample Code //This motor shield use Pin 6,5,7,4 to control the motor // Simply connect your motors to M1+,M1-,M2+,M2// Upload the code to Arduino/Roboduino // Through serial monitor, type 'a','s', 'w','d','x' to control the motor // www.dfrobot.com // Last modified on 24/12/2009 int EN1 = 6; int EN2 = 5; //Roboduino Motor shield uses Pin 9 int IN1 = 7; int IN2 = 4; //Latest version use pin 4 instead of pin 8 void Motor1(int pwm, boolean reverse) { analogWrite(EN1, pwm); //set pwm control, 0 for stop, and 255 for maximum s peed if (reverse) { digitalWrite(IN1, HIGH); } else { digitalWrite(IN1, LOW); } } void Motor2(int pwm, boolean reverse) { analogWrite(EN2, pwm); if (reverse) { digitalWrite(IN2, HIGH); } else { digitalWrite(IN2, LOW); } } void setup() { int i; // for(i=6;i