about delay() in libs.

[youxiaojie]

dear sir,
I hope multitask in arduino, I read a lot of articles which mentioned "forget delay() in multi task".
but I see lots of libs using delay(), should I rewrite these libs?

[arkhipenko]

Yes, and I have written a guide about it:

https://github.com/arkhipenko/TaskScheduler/wiki/Creating-TaskScheduler---friendly-libraries