weather-station/Arduino/outdoor-weather-station/01_pressure.ino

#include <Adafruit_DPS310.h>

Adafruit_DPS310 dps;
Adafruit_Sensor *dps_temp = dps.getTemperatureSensor();
Adafruit_Sensor *dps_pressure = dps.getPressureSensor();

struct {
	float pressure;
	float temperature;
} PressTemp;

void initPressure() {
	debug("Initializing pressure sensor");

	if (!dps.begin_I2C()) {
		Serial.println("Failed to initialize pressure sensor!");
		ERR;
	}

	// Set high precision
	dps.configurePressure(DPS310_64HZ, DPS310_64SAMPLES);
	dps.configureTemperature(DPS310_64HZ, DPS310_64SAMPLES);

	debug("Initialized pressure sensor");
}

void updatePressure() {
	sensors_event_t temp,
		pressure;

	debug("Reading pressure & temperature");

	// Wait until both are available, as reading temperature
	// resets pressure availability, but both are still OK
	// to read.
	while (!dps.temperatureAvailable() || !dps.pressureAvailable()) {
		debug("Waiting...");
		delay(1);
	}
	

	// Docs say I need to read temperature first,
	// though testing seems to show it doesn't matter.
	dps_temp->getEvent(&temp);
	PressTemp.temperature = temp.temperature;
	
	dps_pressure->getEvent(&pressure);
	PressTemp.pressure = pressure.pressure;

	debug("Got temperature & pressure");
}