Ag xtr 29: SU-202 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 SU-202 sensor

Notes

- This example is only valid for Waspmote v15

Code

/*
    ----------- [Ag_xtr_29] - SU-202 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:
      - Ultraviolet radiation
      - Sensor voltage

    Copyright (C) 2020 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 .

    Version:           3.0
    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_B       _________
  - XTR_SOCKET_C      |---------|
  - XTR_SOCKET_E      | A  B  C |
  - XTR_SOCKET_F      |_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_SU202 mySensor = Apogee_SU202(XTR_SOCKET_B);

void setup()
{
  USB.println(F("SU-202 example"));
}

void loop()
{
  // 1. Turn ON the sensor
  mySensor.ON();

  // 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
  mySensor.OFF();

  // 4. Print information
  USB.println(F("---------------------------"));
  USB.println(F("SU-202"));
  USB.print(F("Ultraviolet Radiation: "));
  USB.printFloat(mySensor.radiation, 2);
  USB.println(F(" umol*m-2*s-1"));
  USB.print(F("Sensor voltage: "));
  USB.printFloat(mySensor.radiationVoltage, 4);
  USB.println(F(" V"));
  USB.println(F("---------------------------\n"));

  /*
    Note: the sensor is factory calibrated without
    25 mV per W m -2 --> 1mv = 0.04 W m -2
    8.33 mV per μmol m−2 s−1 --> 1mV = 0.12 μmol m−2 s−1
    
    if the user wants W m -2, the conversion factor should be adjusted 
    manually. Besides, If the light source is not the sun, 
    the calibration factor may vary...
    
  */

  delay(5000);

}

Output

H#
SU-202 example
---------------------------
SU-202
Ultraviolet Radiation: 78.92 umol*m-2*s-1
Sensor voltage: 0.6574 V
---------------------------

---------------------------
SU-202
Ultraviolet Radiation: 78.97 umol*m-2*s-1
Sensor voltage: 0.6578 V
---------------------------