Development v12

Warning - Product Update

All the resources present on this section belong to Waspmote v12, Waspmote Plug & Sense! v12 and Meshlium v3.8.

If you have a Waspmote v15, Waspmote Plug & Sense! v15 or Meshlium v4.0 please go to the new Development Section.

Check what is your version and what are the differences between the old and the new one in this document.

» Pa 01: Smart Parking test example

In this example the Smart Parking board is turned on and calibrated, then a measurement is taken every second approximately showing the magnetic field values read and the estimated status through the USB port.

Required Materials

1 x Waspmote
1 x Battery
1 x Smart Parking board

Notes

* Do not move the Smart Parking board once calibration has started or an "occupied" value will be output no matter the status of the board.
* To simulate the change of status a magnet or a ferromagnetic piece of metal may be used.
* A complete example of an application, along with the details of the board, may be found in the Smart Parking Technical Guide.
* This example can only be executed in Waspmote v12

Code

/*  
 *  --[Pa_1] - Reading the sensors on Smart Parking board-- 
 *  
 *  Explanation: The Smart Parking board is turned on and calibrated,
 *               then a measurement taken every second approximately
 *               printing the result through the USB.
 *  
 *  Copyright (C) 2012 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:           0.1 
 *  Design:            David Gascón 
 
 *  Implementation:    Manuel Calahorra
 */

// Inclusion of the Smart Parking Sensor Board v20 library
#include <WaspSensorParking.h>

// Variable to store temperature
int temperature;

// Variable to store status
boolean status;

void setup()
{

  // Turn on the USB and print a start message
  USB.ON();
  USB.println(F("start"));
  delay(5000);

  // Once "calibration start" command is received, calibration starts. 
  USB.println(F("calibration start"));

  // The reference coefficients are loaded
  SensorParking.loadReference();
  
  // Turn on the board
  SensorParking.ON();
  delay(100);
  
  // Proceed to calibrate
  SensorParking.calibration();  

  // Print the initial values
  USB.print("Initial Values: ");
  USB.print(F("X-Field: "));
  USB.print(SensorParking.initialX);
  USB.print(F(" Y-Field: "));
  USB.print(SensorParking.initialY);
  USB.print(F(" Z-Field: "));
  USB.println(SensorParking.initialZ);
  USB.println(F("calibration finished"));
  
 
}

void loop()
{
  
  //Part 1: Reading the parking board sensors
  // Read the sensors
  SensorParking.readParkingSetReset();
  temperature = SensorParking.readTemperature();
  
  // Estimate the state and turn off the board
  SensorParking.calculateReference(temperature);
  status = SensorParking.estimateState();

  // Part 2: USB printing
  // Print the current value through the USB
  USB.print(F("X-Field: "));
  USB.print(SensorParking.valueX);
  USB.print(F(" Y-Field: "));
  USB.print(SensorParking.valueY);
  USB.print(F(" Z-Field: "));
  USB.print(SensorParking.valueZ);
  if(status == PARKING_OCCUPIED)
  {
    USB.println(" OCCUPIED");
  } else
  {
    USB.println(" EMPTY");
  }
  
  delay(1000);

}

Output

B#
start
calibration start
Initial Values: X-Field: 731 Y-Field: 640 Z-Field: 684
calibration finished
X-Field: 732 Y-Field: 641 Z-Field: 685 EMPTY
X-Field: 733 Y-Field: 641 Z-Field: 685 EMPTY
X-Field: 732 Y-Field: 641 Z-Field: 684 EMPTY
X-Field: 510 Y-Field: 399 Z-Field: 904 OCCUPIED
X-Field: 448 Y-Field: 401 Z-Field: 806 OCCUPIED
X-Field: 732 Y-Field: 640 Z-Field: 683 EMPTY
X-Field: 732 Y-Field: 641 Z-Field: 684 EMPTY

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