Al conectar el sensor de EC a Open Garden y usando el código de ejemplo de la librería de OpenGarden para EC(abajo), lo único que devuelve es:
EC Value in resistance = 0.00 // EC Value = -98823.53 uS/cm
una y otra vez
Los demás sensores incluido el de PH funcionan correctamente.
Estoy usando Windows 8.1, Arduino 1.0.5-r2 y Open_Garden_Libraries_V2.3
¿Alguien sabe como hacerlo funcionar correctamente?
¿Estan defectuosos el sensor o la placa? ¿Algun conflicto de versiones?
/*
* OpenGarden sensor platform for Arduino from Cooking-hacks.
*
* Copyright (C) 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: 2.2
* Design: David Gascón
* Implementation: Victor Boria, Luis Martin & Jorge Casanova
*/
#include <OpenGarden.h>
#include <Wire.h>
#define point_1_cond 40000 // Write here your EC calibration value of the solution 1 in µS/cm
#define point_1_cal 40 // Write here your EC value measured in resistance with solution 1
#define point_2_cond 10500 // Write here your EC calibration value of the solution 2 in µS/cm
#define point_2_cal 120 // Write here your EC value measured in resistance with solution 2
void setup() {
Serial.begin(9600);
OpenGarden.initSensors(); //Initialize sensors power
OpenGarden.sensorPowerON(); //Turn on sensors power supply
OpenGarden.calibrateEC(point_1_cond,point_1_cal,point_2_cond,point_2_cal);
delay(500);
}
void loop() {
float resistanceEC = OpenGarden.readResistanceEC(); //EC Value in resistance
Serial.print(F("EC Value in resistance = "));
Serial.print(resistanceEC);
Serial.print(F(" // EC Value = "));
float EC = OpenGarden.ECConversion(resistanceEC); //EC Value in µS/cm
Serial.print(EC);
Serial.println(F(" uS/cm"));
delay(2000); //Wait 2 seconds
}
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