Help about "Low memory available, stability problem may occur"

[jigwa]

sketch use 75% of program storage space.
Global variables use 77% of dynamic memory

[alowhum]

Should be fine. It's impossible to day for certain without looking at your code to see how much ram you will be using in the main loop.

Just test it. If it works, it works. If it still works next week, it really works.