File content as of revision 3:7eaf505f811e:

#include "mbed.h"

DigitalOut myled(LED1);
PwmOut servo(PTA5);
PwmOut motor(PTA4);
Serial pc(USBTX, USBRX); // tx, rx

// encoder setup and variables
InterruptIn interrupt(PTA13);
int previous_val = -1;
Timer t;


void servo_sweep(){
    for(float p = 0.001; p<0.002; p+=0.0001){
            servo.pulsewidth(p);
            wait(0.5);
    }
}
void fallInterrupt(){
    pc.printf("fall");
}
void riseInterrupt(){
    pc.printf("rise");
}
    
int main() {
    servo.period(0.005);
    motor.period(.0025);
    interrupt.fall(&fallInterrupt);
    interrupt.rise(&riseInterrupt);
    
    
    t.start();
    int lastchange = 0;
    while(1){/*
        if(din) {
            if(previous_val != 1){
                int current_time = t.read_ms();
                int interval = current_time - lastchange;
                lastchange = current_time;
                pc.printf("light to dark time : %d\n\r", interval);
                previous_val = 1;
            }
            myled = 1;
            //pc.printf("dark");
        } else {
            if(previous_val != 0){
                int current_time = t.read_ms();
                int interval = current_time - lastchange;
                lastchange = current_time;
                pc.printf("dark to light time : %d\n\r", interval);
                previous_val = 0;
            }
            myled = 0;
            //pc.printf("light");
        }
        //wait(.2f);
        */
        
        char choice = pc.getc();
        pc.putc(choice);
        switch(choice){
            case '0':
                motor.pulsewidth(0.0);
                pc.printf("0% \n\r");
                break;
            case '1':
                motor.pulsewidth(.0025);
                pc.printf("100% \n\r");
                break;
            case '3':
                motor.pulsewidth(.0025*.3);
                pc.printf("30% \n\r");
                break;
            case '5':
                motor.pulsewidth(.0025*.5);
                pc.printf("50% \n\r");
                break;
            default:
                motor.pulsewidth(.0025*.3);
                pc.printf("default\n\r");
                break;
        }
    
       //servo_sweep();
       //motor_sweep();
       //motor.pulsewidth(.0025);
    }
}