Introduction - If you have any usage issues, please Google them yourself
Easy language perfect delay module source also includes an improved version of high precision waiting.
Delay () - advantage: do not die. Shortcoming: high CPU.
Delay () - advantage: low CPU; disadvantage: the program is stuck.
High precision waiting () - not dead, low CPU. Shortcoming: high frequency cycle is slow.
High precision _ (modified version) - waiting no blockage, low cpu. Shortcomings: unknown.
Perfect delay () - not dead, low CPU. Shortcomings: unknown.