View Source on GitHub

This Arduino library can be used to interface the SDP3x differential pressure sensor from Sensirion over I2C to get the pressure difference and the temperature reading it exposes.

Installation

For now clone the github repository or download and unpack a Zipped version into the libraries folder of your Arduino IDE.

git clone https://github.com/rac2030/Arduino-Sensirion-SDP3x-driver.git

Usage example

// To set a different I2C address, uncomment the define
// #define SDP3x_I2C_ADDRESS 0x21
#include "SDP3x.h"

// Setup routine runs once when you press reset
void setup() {
	// Initialize serial console
	Serial.begin(9600);
	// Initialize I2C communication
	Wire.begin();
}

// the loop routine runs over and over again forever
void loop() {
	// Simply print raw value, this can be viewed in the serial plotter
	Serial.print("Pressure difference: ")
	Serial.println(SDP3x.getPressureDiff());
	// delay for a 100ms until the next sensor reading
	delay(100);
	Serial.print("Temperature: ")
	Serial.println(SDP3x.getTemperature());
	// delay for a 100ms until the next sensor reading
	delay(100);
}

Sourcecode

https://github.com/rac2030/Arduino-Sensirion-SDP3x-driver