Collective change

Alignment:
Eight "8" is replaced equal sign "=" to tower down.

LINE:
"OnDelay" and "OffDelay" is replaced by constants. The "control" is
remained for future adjustment.
On Delay

On Delay is set to constant 80ms. The "control" is kept for future uses.
Adding comments

comment is added to the ON and OFF delay to better clarify unused
"control"
Off delay equation

The equation is adjusted to match with the extra delay due to command
IO. (the extra delay is measured experimentally with "watch" turned on)