SWI 07: Plug & Sense! Reading
This is an specific example to be used with Plug&Sense Platform. In this example we can see how to read from each socket of the Plug&Sense device.
Required Materials
1 x Plug&Sense Ions 1 x Ion Sensor Probe 1 x Single or Double Junction Reference Probe 1 x Calibration Kit (for those sensors which require calibration)
Notes
- The Ion Sensor Probe must be used with its corresponding reference probe. - The calibration process of the ions sensors is described in the technical guide. - It advisable to measure the temperature of the calibration solution. - This example can be executed in Waspmote v12 and Waspmote v15.
Code
/*
* ------ [SWI_07] - Plug&Sense reading for Smart Water Ions--------
*
* Explanation: This is an specific example to be used with
* Plug&Sense Platform. In this example we can see how to read
* from each socket of the Plug&Sense device.
*
* Copyright (C) 2016 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: 3.0
* Design: David Gascón
* Implementation: Ahmad Saad
*/
#include <smartWaterIons.h>
// All Ion sensors can be connected in the four sockets
// In Plug&Sense SOCKETE is reserved for reference probe
//======================================================================
// Plug&Sense SOCKETS
//======================================================================
ionSensorClass calciumSensor(SOCKET_A);
ionSensorClass NO3Sensor(SOCKET_B);
ionSensorClass pHSensor(SOCKET_C);
ionSensorClass fluorideSensor(SOCKET_D);
pt1000Class tempSensor;
//======================================================================
// Calibration concentrations solutions used in the process
//======================================================================
#define point1 10.0
#define point2 100.0
#define point3 1000.0
//======================================================================
// Calibration voltage values for Calcium sensor
//======================================================================
#define point1_volt_Ca 2.163
#define point2_volt_Ca 2.296
#define point3_volt_Ca 2.425
//======================================================================
// Calibration voltage values for NO3 sensor
//======================================================================
#define point1_volt_NO3 3.080
#define point2_volt_NO3 2.900
#define point3_volt_NO3 2.671
//======================================================================
// Calibration voltage values for Fluor sensor
//======================================================================
#define point1_volt_F 3.115
#define point2_volt_F 2.834
#define point3_volt_F 2.557
//======================================================================
// Calibration values for pH sensor
//======================================================================
#define cal_point_10 1.405
#define cal_point_7 2.048
#define cal_point_4 2.687
#define cal_temperature 22.0
//======================================================================
// Define the number of calibration points
//======================================================================
#define NUM_POINTS 3
//======================================================================
const float concentrations[] = {
point1, point2, point3 };
const float voltages_Ca[] = {
point1_volt_Ca, point2_volt_Ca, point3_volt_Ca};
const float voltages_NO3[] = {
point1_volt_NO3, point2_volt_NO3, point3_volt_NO3 };
const float voltages_F[] = {
point1_volt_F, point2_volt_F, point3_volt_F };
//======================================================================
void setup()
{
// Turn ON the Smart Water Ions Board and USB
SWIonsBoard.ON();
USB.ON();
// Calibrate the Calcium sensor
calciumSensor.setCalibrationPoints(voltages_Ca, concentrations, NUM_POINTS);
// Calibrate the NO3 sensor
NO3Sensor.setCalibrationPoints(voltages_NO3, concentrations, NUM_POINTS);
// Calibrate the Fluoride sensor
fluorideSensor.setCalibrationPoints(voltages_F, concentrations, NUM_POINTS);
// Calibrate the pH sensor
pHSensor.setpHCalibrationPoints(cal_point_10, cal_point_7, cal_point_4, cal_temperature);
}
void loop()
{
SWIonsBoard.ON();
//==========================================================
// Read the Calcium sensor
//==========================================================
float CaVolts = calciumSensor.read();
float calciumValue = calciumSensor.calculateConcentration(CaVolts);
delay(500);
USB.print(F(" Calcium : "));
USB.print(calciumValue);
USB.print(F(" ppm/mg*L-1 | "));
//==========================================================
// Read the NO3 sensor
//==========================================================
float NO3Volts = NO3Sensor.read();
float NO3Value = NO3Sensor.calculateConcentration(NO3Volts);
delay(500);
USB.print(F(" NO3: "));
USB.print(NO3Value);
USB.print(F(" ppm/mg*L-1 | "));
//==========================================================
// Read the Fluoride sensor
//==========================================================
float flourVolts = fluorideSensor.read();
float flourideValue = fluorideSensor.calculateConcentration(flourVolts);
delay(500);
USB.print(F(" Fluoride: "));
USB.print(flourideValue);
USB.print(F(" ppm/mg*L-1 | "));
//==========================================================
// Read the Temperature sensor
//==========================================================
float tempValue = tempSensor.read();
delay(500);
USB.print(F(" Temp: "));
USB.print(tempValue);
USB.print(F(" Celsius Degrees | "));
//==========================================================
// Read the pH sensor
//==========================================================
float pHVolts = pHSensor.read();
float pHValue = pHSensor.pHConversion(pHVolts, tempValue);
delay(500);
USB.print(F("pH: "));
USB.print(pHValue);
USB.print(F(" | "));
USB.print(F("\n"));
SWIonsBoard.OFF();
delay(1000);
}Output
H#
Calcium : 14.7669811248 ppm/mg*L-1 | NO3: 125.5360794067 ppm/mg*L-1 | Fluoride: 0.7108693122 ppm/mg*L-1 | Temp: 23.4586791992 Celsius Degrees | pH: 10.2813014984 |
Calcium : 15.0040807723 ppm/mg*L-1 | NO3: 126.2854843139 ppm/mg*L-1 | Fluoride: 0.7090309143 ppm/mg*L-1 | Temp: 23.7174987792 Celsius Degrees | pH: 10.5279808044 |
Calcium : 14.8975725173 ppm/mg*L-1 | NO3: 126.1116333007 ppm/mg*L-1 | Fluoride: 0.7104959011 ppm/mg*L-1 | Temp: 23.8010253906 Celsius Degrees | pH: 10.6962947845 |Last updated