Using the receiver signal to activate codes

Hello,

I'm quite new to script writing, so I would strugle with harder codes than controlling servos, LEDs etc. I want to make a code that would be activated by certain strength of RC car receiver throttle signal(the code would activate at certain amount of RPMs and stop if lower). But I don't know how to write it. :( Please help with that.

In loop():

if (rpm > thresholdValue) {
   // do stuff for high rpm
}

where rpm is the latest rpm reading,

Is this usable with rc car receivers like this: https://hobbyking.com/en_us/hobbykingr-tm-gt-2-2-4ghz-receiver-3ch.html

Can you read that signal with an Arduino and does it provide an rpm value? If so: yes.

You have two clear options.

Either monitor the PWM signal on the servo to give you a throttle position. https://www.electronoobs.com/eng_robotica_tut9_1.php

Or put a small sensor on the output of the motor to give actual RPM. https://www.instructables.com/id/Measure-RPM-DIY-Portable-Digital-Tachometer/