Can a voltage regulator change voltage of PWM signal?

Hello Everyone,
A bit of a noob question, but can a voltage step down change a PWM signal from a Spektrum hobby receiver from 5v to 3.3v, and be readable by a Teensy LC? (Their pins are not 5v tolerant). Thanks!
Kevin
tolerant able to tolerate environmental conditions or physiological stress More (Definitions, Synonyms, Translation)

akevkev:
Hello Everyone,
A bit of a noob question, but can a voltage step down change a PWM signal from a Spektrum hobby receiver from 5v to 3.3v, and be readable by a Teensy LC? (Their pins are not 5v tolerant). Thanks!
Kevin
tolerant able to tolerate environmental conditions or physiological stress More (Definitions, Synonyms, Translation)

No, but a voltage divider made up of two resistors can certainly do the job.
Paul

A simple approach to level translation is a diode with cathode to 5 V source and anode to the 3.3 V device. Enable the internal pull-up on the 3.3 V device, or an external pull-up if this is not fast enough.

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