barometric_math.hpp File Reference

Barometric math shared by pressure sensors (framework independent) More...

#include <cmath>

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Namespaces
namespace	m5
	Top level namespace of M5Stack.

Functions
float	m5::unit::barometric::calculate_altitude (const float pressure_pa, const float sea_level_pa=101325.0f)
	Altitude (m) from a pressure and a reference sea-level pressure (both Pa)

Detailed Description

Barometric math shared by pressure sensors (framework independent)

Function Documentation

calculate_altitude()

float m5::unit::barometric::calculate_altitude ( const float pressure_pa, const float sea_level_pa = 101325.0f )

inline

Altitude (m) from a pressure and a reference sea-level pressure (both Pa)

Barometric formula (temperature-independent): h = 44330 * (1 - (p/p0)^(1/5.255)). Sea-level pressure defaults to the ICAO standard atmosphere (101325 Pa / 1013.25 hPa).