Pulse

A basic class object to control fading.

This is a simple library to simplfy fading standard LEDs or anything on a PWM pin.

Currently it has two functions:

1. Fade up and down (pulse) at a set rate.
2. Fade to off.

It is straight forward and fucntions by attaching a PWM to the object.

Pulse btnPwm;
setup()
{
btnPwm.attach(13);
}

Then you can set this during setup for a constant rate or in the loop to change it.

setup()
{
btnPwm.setRate(50); //in ms
}

Finally, call it in your loop to update it. The update function looks for a bool to set it to pulse(true) or to set to black (false).

loop()
{
btnPwm.update(1); //pulse
btnPwm.update(0); //turn off PWM
}

This may get more features added later but for now it works!