Example chapter09_08 utilizes object oriented programming techniques to control an RGB LED.
In this example, three PWM signals are used to vary the duty cycles of the red, green and blue hues of an RGB LED. Current is drawn directly from the microcontroller ports. The PWM signals are realized entirely in software with an underlying tick derived from a timer interrupt that runs every 50 microseconds.
In this example (as in most other examples), both a hardware version for the target system as well as a simlulated PC version are available. For this exercise, it was decided to implement a rather detailed PC simulation using old-school traditional Win32-API programming.
Color hues of RGB blend in a smooth fashion around the entire spectrum to produce the appearance of slowly varying colors. The user LED is simultaneously toggled at the usual 1/2Hz.
