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Ag v30 05b: Dendrometer sensor with reference

Turn on the Agriculture v30 board and read the dendrometer on it once every second

Required Materials

1 x Waspmote 1 x Agriculture Board v30 1 x Dendrometer sensor

Notes

- This example is only valid for Waspmote v15

Code

/*
* --[Ag_v30_05b] - Dendrometer sensor reading with reference
*
* Explanation: Turn on the Agriculture v30 board and read the
* dendrometer on it once every second
*
* Copyright (C) 2022 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: Luis Miguel Martí
*/
#include <WaspSensorAgr_v30.h>
// Variable to store the read value
float value;
/*
* Define object for sensor: dendSensor
* Input to choose type of dendrometer.
* Possibilities for this sensor:
* - SENS_SA_DF
* - SENS_SA_DF4
* - SENS_SA_DD
* - SENS_SA_DC3
* - SENS_SA_DC2 (old)
*/
dendrometerClass dendSensor(SENS_SA_DF4);
void setup()
{
// Turn on the USB and print a start message
USB.ON();
USB.println(F("Start program"));
// Turn on the sensor board
Agriculture.ON();
// This function reads the dendrometer value
// and sets it as zero millimeters reference
USB.print(F("Reference captured at: "));
dendSensor.setReference();
USB.printFloat(dendSensor._reference,3);
USB.println(F(" mm .The following samples will be relatives to this"));
}
void loop()
{
// Part 1: Read the dendrometer value and returns
// the difference between this value and reference
value = dendSensor.readGrowth();
// Part 2: USB printing
// Print the Dendrometer value through the USB
USB.print(F("Dendrometer: "));
USB.printFloat(value,3);
USB.println(F(" mm"));
delay(1000);
}

Output

H#
Start program
Reference captured at: 3.906 mm .The following samples will be relatives to this
Dendrometer: 0.000 mm
Dendrometer: 0.000 mm
Dendrometer: 0.000 mm
Dendrometer: 0.000 mm
Dendrometer: 0.000 mm
Last modified 5mo ago