Ag xtr 30: SO-421 sensor reading

Basic example that turns on, reads and turn off the sensor. Measured parameters are stored in the corresponding class variables and printed by the serial monitor.

Required Materials

- 1 Waspmote Plug & Sense! Smart Agriculture Xtreme - 1 SO-421 sensor

Notes

- This example is only valid for Waspmote v15

Code

/*
    ----------- [Ag_xtr_30] - SO-421 sensor reading --------------------

    Explanation: Basic example that turns on, reads and turn off the
    sensor. Measured parameters are stored in the corresponding class
    variables and printed by the serial monitor.

    Measured parameters:
      - Calibreted oxigen
      - Body temperature
      - Sensor millivolts

    Copyright (C) 2021 Libelium Comunicaciones Distribuidas S.L.
    http://www.libelium.com

    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation, either version 3 of the License, or
    (at your option) any later version.

    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.

    You should have received a copy of the GNU General Public License
    along with this program.  If not, see <http://www.gnu.org/licenses/>.

    Version:           3.1
    Design:            David Gascón
    Implementation:    J.Siscart, V.Boria
*/

#include <WaspSensorXtr.h>

/*
  SELECT THE RIGHT SOCKET FOR EACH SENSOR.

  Possible sockets for this sensor are:
  - XTR_SOCKET_A       _________
  - XTR_SOCKET_B      |---------|
  - XTR_SOCKET_C      | A  B  C |
  - XTR_SOCKET_D      |_D__E__F_|


  Example: a 5TM sensor on socket A will be
  [Sensor Class] [Sensor Name] [Selected socket]
  Decagon_5TM    mySensor      (XTR_SOCKET_A);

  Refer to the technical guide for information about possible combinations.
  www.libelium.com/downloads/documentation/smart_agriculture_xtreme_sensor_board.pdf
*/

//   [Sensor Class] [Sensor Name] [Selected socket]
Apogee_SO421 mySensor(XTR_SOCKET_A);

void setup()
{
  USB.println(F("SO-421 example"));
}

void loop()
{
  // 1. Turn ON the sensor
  /*
    ON() function turns on the sensor and the heater before take a read.
    Sensor response time is 15 seconds.
    Dont forget to turn it off after read it.
  */
  mySensor.ON();
  delay(15000);

  // 2. Read the sensor
  /*
    Note: read() function does not directly return sensor values.
    They are stored in the class vector variables defined for that purpose.
    Values are available as a float value
  */
  mySensor.read();

  // 3. Turn off the sensor and the heater
  mySensor.OFF();

  // 4. Print information
  USB.println(F("---------------------------"));
  USB.println(F("SO-421"));
  USB.print(F("Calibrated Oxigen: "));
  USB.printFloat(mySensor.sensorSO421.calibratedOxygen, 3);
  USB.println(F(" %"));
  USB.print(F("Body temperature: "));
  USB.printFloat(mySensor.sensorSO421.bodyTemperature, 1);
  USB.println(F(" degrees Celsius"));
  USB.print(F("Sensor millivolts: "));
  USB.printFloat(mySensor.sensorSO421.milliVolts, 4);
  USB.println(F(" mV"));
  USB.println(F("---------------------------\n"));

  /*
    Note: To send the SO-421 sensor values with the FRAME library,
    please use the SO-411 tags. There are not specific tags for the SO-421 due
    to memory limitations.

    This is an example for the socket A:

    frame.addSensor(AGRX_SO411_CO_A, mySensor.sensorSO421.calibratedOxygen);
    frame.addSensor(AGRX_SO411_TC2_A, mySensor.sensorSO421.bodyTemperature);
    frame.addSensor(AGRX_SO411_MV2_A, mySensor.sensorSO421.milliVolts);

  */

  delay(5000);

}

Output

H#
SO-421 example
---------------------------
SO-421
Calibrated Oxigen: 26.156 %
Body temperature: 24.1 degrees Celsius
Sensor millivolts: 11.5795 mV
---------------------------

---------------------------
SO-421
Calibrated Oxigen: 26.149 %
Body temperature: 24.1 degrees Celsius
Sensor millivolts: 11.5772 mV
---------------------------

---------------------------
SO-421
Calibrated Oxigen: 26.140 %
Body temperature: 24.2 degrees Celsius
Sensor millivolts: 11.5742 mV
---------------------------

---------------------------
SO-421
Calibrated Oxigen: 26.152 %
Body temperature: 24.2 degrees Celsius
Sensor millivolts: 11.5784 mV
---------------------------

---------------------------
SO-421
Calibrated Oxigen: 26.153 %
Body temperature: 24.2 degrees Celsius
Sensor millivolts: 11.5786 mV
---------------------------