syouichi imamori / SoftPWM

The PWM output by software. Can be output to any pin. It can be used to replace the Pwmout.

Dependents:   SoftPWM_Example XYZ_Joystick_PWM mbed_pwm mbed_Ahan_robocon ... more

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/**
* \file main.cpp
* \brief main program
*/

#include "mbed.h"
#include "math.h"
#include "SoftPWM.h"
// Blink the LED smoothly with PWM. 
// Also, this project is test of the math function.

/**
* \brief LED to control
*/
SoftPWM myled1(LED1);
SoftPWM myled2(LED2);
SoftPWM myled3(LED3);
SoftPWM myled4(LED4);

/**
* \brief main program
*/
int main() {
    myled1.period_ms( 1 );
    myled2.period_ms( 1 );
    myled3.period_ms( 1 );
    myled4.period_ms( 1 );
    while (1)
        for ( int i=0; i<360; i+=10 ) {
            myled1 = cos( i*2.0*3.14/360 ) * 0.5 + 0.5;
            wait(0.01);
            myled2 = cos( (i+90)*2.0*3.14/360 ) * 0.5 + 0.5;
            wait(0.01);
            myled3 = cos( (i+180)*2.0*3.14/360 ) * 0.5 + 0.5;
            wait(0.01);
            myled4 = cos( (i+270)*2.0*3.14/360 ) * 0.5 + 0.5;
            wait(0.01);
        }
}
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