unit_SHT40.hpp File Reference

SHT40 Unit for M5UnitUnified. More...

#include <M5UnitComponent.hpp>
#include <m5_utility/container/circular_buffer.hpp>
#include <limits>

Go to the source code of this file.

Classes
struct	m5::unit::sht40::Data
	Measurement data group. More...
class	m5::unit::UnitSHT40
	Temperature and humidity, sensor unit. More...
struct	m5::unit::UnitSHT40::config_t
	Settings for begin. More...

Namespaces
namespace	m5
	Top level namespace of M5Stack.
namespace	sht40
	For SHT40.

Enumerations
enum class	m5::unit::sht40::Precision : uint8_t { High , Medium , Low }
	precision level More...
enum class	m5::unit::sht40::Heater : uint8_t { Long , Short , None }
	Heater behavior. More...
enum class	m5::unit::sht40::HeaterPower : uint8_t { High = 0 , Medium = 1 , Low = 2 }
	Heater power level. More...
enum class	m5::unit::sht40::HeaterDuration : uint8_t { Long = 0 , Short = 1 }
	Heater activation duration. More...

Detailed Description

SHT40 Unit for M5UnitUnified.

Enumeration Type Documentation

Heater

enum class m5::unit::sht40::Heater : uint8_t

strong

Heater behavior.

Deprecated

Use HeaterPower and HeaterDuration instead. When heater is active, the Precision parameter selects heater power, not measurement precision. All heater commands perform high precision measurement regardless of Precision setting.

Enumerator
Long	Activate heater for 1s.
Short	Activate heater for 0.1s.
None	Not activate heater.

HeaterDuration

enum class m5::unit::sht40::HeaterDuration : uint8_t

strong

Heater activation duration.

Enumerator
Long	Activate heater for 1s.
Short	Activate heater for 0.1s.

HeaterPower

enum class m5::unit::sht40::HeaterPower : uint8_t

strong

Heater power level.

Note

All heater commands perform high precision measurement regardless of power level

Enumerator
High	Highest heater power (typ. 200mW @ 3.3V)
Medium	Medium heater power (typ. 110mW @ 3.3V)
Low	Lowest heater power (typ. 20mW @ 3.3V)

Precision

enum class m5::unit::sht40::Precision : uint8_t

strong

precision level

Enumerator
High	High precision (high repeatability)
Medium	Medium precision (medium repeatability)
Low	Lowest precision (low repeatability)