Arduino LED blinker without using delay()

This is my 1st "useful" projects learning C++. The LED_blinker class allows one to blink an LED without using the delay() function in Arduino.

The features include:

-Ability to set the duration of the ON phase -Ability to set the duration of the OFF phase -Ability to set the duration of the entire blinking phase. So we can set it to blink for 10 seconds and then turn off.

It simply returns TRUE whenever the LED is supposed to be ON, and FALSE when it should be OFF.

Planned for next update: -Ability to have it blink indefinitely.