Diff: autocar/autocar.h

Revision:

15:1d440beb24d3

Parent:

13:87cd0ae37e06

Child:

18:d7509436e9ef

--- a/autocar/autocar.h	Sun Jul 01 13:12:37 2018 +0000
+++ b/autocar/autocar.h	Thu Jul 05 09:33:33 2018 +0000
@@ -3,25 +3,20 @@
 
 #include "mbed.h"
 
-// used for motor
-//AnalogOut M1_enable(D6);
-//AnalogOut M2_enable(D5);
-/*DigitalOut M1_enable(D6);
-DigitalOut M2_enable(D5);
-DigitalOut M1_in1(D3);
-DigitalOut M1_in2(D2);
-DigitalOut M2_in3(D1);
-DigitalOut M2_in4(D0);
-const int MOTOR_M1 = 0;
-const int MOTOR_M2 = 1;
-const int DIR_FORWARD = 0;
-const int DIR_BACKWARD = 1;
-const int PWR_STOP = 0;*/
+// used for motors
+extern DigitalOut M1_enable;
+extern DigitalOut M2_enable;
+extern DigitalOut M1_in1;
+extern DigitalOut M1_in2;
+extern DigitalOut M2_in3;
+extern DigitalOut M2_in4;
 
 // used for IR sensors
-/*AnalogIn leftIR(A1);
-AnalogIn middleIR(A3);
-AnalogIn rightIR(A5);*/
+extern AnalogIn leftIR;
+extern AnalogIn middleIR;
+extern AnalogIn rightIR;
+
+// read the value of IR sensors
 void readIR(bool* left, bool* middle, bool* right, int threshold);
 int readIRValues();
 
@@ -30,7 +25,6 @@
 // used for controlling the direction of auto car
 void DriveSingleMotor(int m, int speed, int dir);
 void driveMotor(bool left, bool middle, bool right);
-
 void driveMotorPID(int values, float Kp, float Ki, float Kd);
 
 void init();