File content as of revision 0:78be441efc5a:

#include "mbed.h"
#include "Motor.h"
Serial pc(USBTX, USBRX);
Motor myMotor(PA_1, PA_0);
Motor isMotor(PB_0, PA_4);
Motor miMotor(PF_0, PA_3);
Motor hisMotor(PA_7, PA_5);
char incoming;
float wx = 0;
float wy = 0;
float wz = 0;
float wp = 0;

int main() {

    pc.baud(9600);
    while(1){
        if(pc.readable()) {
            incoming = pc.getc();
            switch(incoming) {
                case 'a':
                    wx = wx+0.02;
                    myMotor.speed(wx);
                    pc.printf("Motor 1 is:  %4f\r\n", wx);
                    break;
                case 's':
                    wx = wx-0.02;
                     myMotor.speed(wx);
                     pc.printf("Motor 1 s:  %4f\r\n", wx);
                    break;
                    
                case 'd':
                    wx = 0.0;
                    myMotor.speed(wx);
                    pc.printf("Motor 1 is: 4f\r\n", wx);
                    break;
                case 'z':
                    wy = wy+0.02;
                    isMotor.speed(wy);
                    pc.printf("Motor 2 is:  %4f\r\n", wy);
                    break;
                case 'x':
                    wy = wy-0.02;
                     isMotor.speed(wy);
                     pc.printf("Motor 2 is:  %4f\r\n", wy);
                    break;
                    
                case 'c':
                    wy = 0.0;
                    isMotor.speed(wy);
                    pc.printf("Motor 2  is:  %4f \r\n", wy);
                    break;
                case 'f':
                    wz = wz+0.02;
                    miMotor.speed(wz);
                    pc.printf("Motor 3 is:  %4f\r\n", wz);
                    break;
                case 'g':
                    wz = wz-0.02;
                     miMotor.speed(wz);
                     pc.printf("Motor 3 is:  %4f\r\n", wz);
                    break;
                    
                case 'h':
                    wz = 0.0;
                    miMotor.speed(wz);
                    pc.printf("Motor 3 is: %4f\r\n", wz);
                    break;
                case 'v':
                    wp = wp+0.02;
                    hisMotor.speed(wp);
                    pc.printf("Motor 4 is:  %4f\r\n", wp);
                    break;
                case 'b':
                    wp = wp-0.02;
                     hisMotor.speed(wp);
                     pc.printf("Motor 4 is:  %4f\r\n", wp);
                    break;
                    
                case 'n':
                    wp = 0.0;
                    hisMotor.speed(wp);
                    pc.printf("Motor 4 is:  %4f \r\n", wp);
                    break;
                case 'p':
                    pc.printf("Motor 1 is:  %4f\r\n", wx);
                    pc.printf("Motor 2  is:  %4f \r\n", wy);
                    pc.printf("Motor 3 is: 4f\r\n", wz);
                    pc.printf("Motor 4 is:  %4f \r\n", wp);
                    break;
                }           
        }

          
        }
}