Model turbine ECU RPM EGT working

First success getting both RPM and EGT to display correctly!
Now I know I have a circuit that works and can build on that.

[shanakaliyanage]

Nice project. I'm also working on a jet engine. I haven't decided what kind of a tachometer to be used. Thinking of hall effect and laser tachometers with Arduino. My question is where did you place the magnet for the tachometer? Also, do you know any other way to detect rpm without modifying the engine parts?

[hydra]

Can you share the schematic and program pls .

[Crazyboy.]

Your code ....not upolading filename or filename