File content as of revision 2:aee655d11b6d:

#include "mbed.h"
//#include "HIDScope.h"
//#include "QEI.h"
#include "MODSERIAL.h"
//#include "BiQuad.h"
//#include "FastPWM.h"
#include <math.h>

Serial pc(USBTX, USBRX);
Ticker myControllerTicker;
AnalogIn potMeter(A0);
PwmOut fan(D5);  // kan ook D6 zijn
DigitalOut fan_dir(D4);
InterruptIn button1(D2);

void direction(void)
    {
        fan_dir=!fan_dir;
    
    pc.printf("hello");
    }




// Feed forward fan speed controller
// Suppose an AnalogIn ’potMeter’ and PWMOut ’fan’
void fanController( )
{
// Determine reference (desired) fan speed
double y_des = potMeter.read();
// Controller (calculate motor torque/pwm)
if( y_des > 1 ) y_des = 1; // y_des must be <= 1
if( y_des < 0 ) y_des = 0; // y_des must be >= 0
double u = pow(y_des, 2.0); // Inverse relation between input and output
// Send to motor
fan.write( u );
pc.printf("u: %.2f\n\r",u);
}



int main()
{
myControllerTicker.attach( fanController, 0.1 ); // Every second

button1.mode(PullUp);   
button1.rise(direction);

while( true ) { /* do nothing */ }
return 0;
}