Tachometers (Revolution Counters)
Tachometers (also known as revolution-counter sensors) can be used to measure the rate of rotation turning vehicle parts like rotors, engines, or wheels.
:::note Currently PX4 just logs RPM data: it is not used for state estimation or control. :::
This section lists the tachometer sensors supported by PX4 (linked to more detailed documentation). More detailed setup and configuration information is provided in the topics linked below (and sidebar).