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Add sht31 sensors to the base of sensors #2449

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Add sht31 sensors to the base of sensors #2449

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956fa5f
Add sht3x sensors to the base of sensors
danielkoek May 8, 2026
261f9e8
Add the right lib
danielkoek May 8, 2026
66e72ec
add has to be used
danielkoek May 8, 2026
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2 changes: 2 additions & 0 deletions platformio.ini
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Original file line number Diff line number Diff line change
Expand Up @@ -126,6 +126,7 @@ build_flags =
-D ENV_INCLUDE_BME280=1
-D ENV_INCLUDE_BMP280=1
-D ENV_INCLUDE_SHTC3=1
-D ENV_INCLUDE_SHT31=1
-D ENV_INCLUDE_SHT4X=1
-D ENV_INCLUDE_LPS22HB=1
-D ENV_INCLUDE_INA3221=1
Expand All @@ -145,6 +146,7 @@ lib_deps =
adafruit/Adafruit BME280 Library @ ^2.3.0
adafruit/Adafruit BMP280 Library @ ^2.6.8
adafruit/Adafruit SHTC3 Library @ ^1.0.1
adafruit/Adafruit SHT31 Library @ ^2.2.2
sensirion/Sensirion I2C SHT4x @ ^1.1.2
arduino-libraries/Arduino_LPS22HB @ ^1.0.2
adafruit/Adafruit MLX90614 Library @ ^2.1.5
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19 changes: 19 additions & 0 deletions src/helpers/sensors/EnvironmentSensorManager.cpp
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Expand Up @@ -56,6 +56,12 @@ static Adafruit_BMP280 BMP280(TELEM_WIRE);
static Adafruit_SHTC3 SHTC3;
#endif

#if ENV_INCLUDE_SHT31
#define TELEM_SHT31_ADDRESS 0x44
#include <Adafruit_SHT31.h>
static Adafruit_SHT31 SHT31;
#endif

#if ENV_INCLUDE_SHT4X
#define TELEM_SHT4X_ADDRESS 0x44
#include <SensirionI2cSht4x.h>
Expand Down Expand Up @@ -270,6 +276,16 @@ static void query_shtc3(uint8_t ch, uint8_t, CayenneLPP& lpp) {
}
#endif

#if ENV_INCLUDE_SHT31
static uint8_t init_sht31(TwoWire* wire, uint8_t addr) {
return SHT31.begin(addr) ? 1 : 0;
}
static void query_sht31(uint8_t ch, uint8_t, CayenneLPP& lpp) {
lpp.addTemperature(ch, SHT31.readTemperature());
lpp.addRelativeHumidity(ch, SHT31.readHumidity());
}
#endif

#if ENV_INCLUDE_SHT4X
static uint8_t init_sht4x(TwoWire* wire, uint8_t addr) {
// SensirionI2cSht4x::begin() does not probe the hardware; use serialNumber()
Expand Down Expand Up @@ -467,6 +483,9 @@ static const SensorDef SENSOR_TABLE[] = {
#if ENV_INCLUDE_SHTC3
{ 0x70, "SHTC3", init_shtc3, query_shtc3 },
#endif
#if ENV_INCLUDE_SHT31
{ TELEM_SHT31_ADDRESS, "SHT31", init_sht31, query_sht31 },
#endif
#if ENV_INCLUDE_SHT4X
{ TELEM_SHT4X_ADDRESS, "SHT4X", init_sht4x, query_sht4x },
#endif
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