PymateIO-Delaying

Abstract

The "Cycle Timing" tutorial state the following:

NEVER USE BLOCKING INSTRUCTION in the mainloop

Blocking instruction locks the script execution in a waiting state... whereas critical operation may requires quick reaction from the script.

The sleep(), sleep_ms() are BLOCKING INSTRUCTIONS.
They should never be used in your script, neither in the mainloop

The solution for this is:

• use the EventTimer class
• set the delay on the EventTimer when the source event occurs.
• check the EventTimer.done at every mainloop cycle.
• Once done, it is time to executed the delayed code.

Remark: the done will assert True only once for every set()!

Practical example

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