Example Code for Arduino-Read Pressure Temperature Altitude

Hardware Preparation

• DFRduino UNO R3 (or similar) x 1
• Gravity ICP 10111 Pressure Sensor x1
• Jumper wires

Software Preparation

• Arduino IDE
• Download and install the DFRobot_ICP Library. (About how to install the library?)

Wiring Diagram

Connect the module to the DFRduino UNO main board (via the I2C interface) as shown in the figure below.

Other Preparation Work

Altitude is calculated from air pressure. As air pressure is affected by weather, season, airflow, etc. so altitude data can change.

Sample Code

Copy the following code to Arduino IDE and burn it to DFRduino UNO.

/*!
 * @file readData.ino
 * @brief This demo is for SEN0516. Run it to get sensor temperature, air pressure and altitude.
 * @copyright  Copyright (c) 2021 DFRobot Co.Ltd (http://www.dfrobot.com)
 * @license The MIT License (MIT)
 * @author [TangJie]([email protected])
 * @version V1.0
 * @date 2021-11-05
 * @url https://github.com/DFRobot/DFRobot_ICP10111
 */

#include <DFRobot_ICP10111.h>

DFRobot_ICP10111 icp;

void setup(void)
{
    Serial.begin(115200);
    while(icp.begin() != 0){
      Serial.println("Failed to initialize the sensor");
      }
     Serial.println("Success to initialize the sensor");
     /**
      * @brief Set work mode
      * |------------------|-----------|-------------------|----------------------|
      * |       api        |   mode    |Conversion Time(ms)|Pressure RMS Noise(Pa)|
      * |icp.eLowPower     |  Low Power   |      1.8          |        3.2           |
      * |icp.eNormal       |  Normal      |      6.3          |        1.6           |
      * |icp.eLowNoise     |  Low Noise   |      23.8         |        0.8           |
      * |icp.eUltraLowNoise|  Ultra-low Noise |      94.5         |        0.4           |
      */
     icp.setWorkPattern(icp.eNormal);
}

void loop(void)
{
  Serial.println("------------------------------");
  Serial.print("Read air pressure:");
  Serial.print(icp.getAirPressure());
  Serial.println("Pa");
  Serial.print("Read temperature:");
  Serial.print(icp.getTemperature());
  Serial.println("℃");
  Serial.print("Read altitude:");
  Serial.print(icp.getElevation());
  Serial.println("m");
  delay(1000);
}

Result

Open the serial monitor and you will see the barometric pressure, temperature, and altitude of the current environment.