Question 1: the m1-m4 connections. When looking at m1 (with the letter and number sideways on the left) which is the power to the motor, and which is ground? Same with m2, m3, m4.
Question 2: What are ways to troubleshoot the adafruit board?
Here is the code I am using. It compiles without problem:
Code: Select all
/*******************************************
* MotorTest4wd.ino
* Initial motor test for 4WD
* robot rotates clockwise
* (Left motors driven forward, right backward)
* Michael Margolis 24 July 2012
********************************************/
const int LED_PIN = 13;
const int speed = 60; // percent of maximum speed
#include <AFMotor.h> // adafruit motor shield library (modified my mm)
AF_DCMotor Motor_Left_Front(4, MOTOR34_1KHZ); // Motor 4
AF_DCMotor Motor_Right_Front(3, MOTOR34_1KHZ); // Motor 3
AF_DCMotor Motor_Left_Rear(1, MOTOR12_1KHZ); // Motor 1
AF_DCMotor Motor_Right_Rear(2, MOTOR12_1KHZ); // Motor 2
int pwm;
void setup()
{
pinMode(A
Serial.begin(9600);
blinkNumber(8); // open port while flashing. Needed for Leonardo only
// scale percent into pwm range (0-255)
pwm= map(speed, 0,100, 0,255);
Motor_Left_Front.setSpeed(pwm);
Motor_Right_Front.setSpeed(pwm);
Motor_Left_Rear.setSpeed(pwm);
Motor_Right_Rear.setSpeed(pwm);
}
// run over and over
void loop()
{
Serial.println("rotate cw");
Motor_Left_Front.run(FORWARD);
Motor_Left_Rear.run(FORWARD);
Motor_Right_Front.run(BACKWARD);
Motor_Right_Rear.run(BACKWARD);
delay(5000); // run for 5 seconds
Serial.println("stopped");
Motor_Left_Front.run(RELEASE); // stop the motors
Motor_Right_Front.run(RELEASE);
Motor_Left_Rear.run(RELEASE); // stop the motors
Motor_Right_Rear.run(RELEASE);
delay(5000); // stop for 5 seconds
}
// function to indicate numbers by flashing the built-in LED
void blinkNumber( byte number) {
pinMode(LED_PIN, OUTPUT); // enable the LED pin for output
while(number--) {
digitalWrite(LED_PIN, HIGH); delay(100);
digitalWrite(LED_PIN, LOW); delay(400);
}
}
