Inertial Sensor turning

[JuggerNik]

Does anyone know how to make a perfect 90 turn using an inertial sensor? (in Autonomous)

[Xenon27]

depends what you mean by “perfect”

what kind of precision are you looking for?
for most purposes, ± around 5 degrees is perfectly fine. for this you could use some sort of control loop. a p loop is easiest, but doesn’t account for varying resistance to your turn (friction, weight, ect). a pid loop would be best, and would likely get you all the precision you need.
this is a great pid tutorial, and while it doesn’t use an inertial sensor for turning, it does a great job of explaining the loops themselves. You should be able to implement a pid loop using inertial sensor values pretty easily from this tutorial:

VEXCode PID Tutorial

First of all @Connor thank you so much for this Tutorial it helped me a lot because I am kind of new to all these PID stuff, however I had a small question left after your tutorial. So, in my autonomous I’m trying the take in the 4 horizontal cubes near the smaller goal zone, and in order to do so, I need to turn both my intake motors. How can I turn the intake motors simultaneously to the driving PID.