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.

» Int 05a: Sensor Event interrupt

This example shows how to setup a threshold to the Sensor Event Board and enter sleep mode until an interruption occurs. Then show the value returned by the sensor board and print it.

Required Materials

1 x Waspmote
1 x MiniUSB wire
1 x Battery
1 x Sensor Event Board
1 x Pressure Sensor

Notes

- Remember to turn on the manual switch for socket 1 in the Events 2.0 Sensor Board
- Pressure sensor is the one used in this example, but other resistive sensors can be placed instead (take a look at the Sensor Compatibility guide)
- This example can be executed in Waspmote v12 and Waspmote v15

Code

/*
 *  ------ [Int_05] Setting battery level interrupt example -------- 
 *
 *  Explanation: This example shows how to setup a threshold to the 
 *  Sensor Event Board and enter sleep mode until an interruption 
 *  occurs. Then show the value returned by the sensor board and print
 *  it.
 *
 *  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 Gascon
 *  Implementation:         Manuel Calahorra
 */


// Inclusion of the Events Sensor Board v20 library
#include <WaspSensorEvent_v20.h>

// Variable to store the sensor read value
float value = 0;



void setup()
{
  USB.ON();
  USB.println(F("int_05 example"));
  
  // Turn on the Events Sensor Board
  SensorEventv20.ON();
  
  // Init the RTC
  RTC.ON();
  
  // Configure the sensor threshold
  SensorEventv20.setThreshold(SENS_SOCKET1, 1);
}



void loop()
{
  // Enable interruptions from the board
  SensorEventv20.attachInt();
 
  // Put the mote to sleep
  USB.println(F("Enter sleep mode..."));  
  PWR.sleep(UART0_OFF | UART1_OFF | BAT_OFF | RTC_OFF);
  USB.println(F("...wake up")); 
  
  // Disable interruptions from the board
  SensorEventv20.detachInt();
  
  // Load the interruption register
  SensorEventv20.loadInt();

  // Compare the interruption received with the sensor identifier
  if (SensorEventv20.intFlag & SENS_SOCKET1)
  {    
    USB.println(F("---------------------------"));    
    USB.println(F("Sensor Events board interruption captured!!"));    
    USB.println(F("---------------------------"));    
    
    // Read the sensor
    value = SensorEventv20.readValue(SENS_SOCKET1, SENS_RESISTIVE);
    
    // Print the resistance of the sensor
    USB.print(F("Resistance: "));    
    USB.print(value);
    USB.println(F("kohms"));

  } 


}

Output

E#
int_05 example
Enter sleep mode...
...wake up
---------------------------
Sensor Events board interruption captured!!
---------------------------
Resistance: 172.5831909179kohms
Enter sleep mode...
...wake up
---------------------------
Sensor Events board interruption captured!!
---------------------------
Resistance: 147.2592468261kohms
Enter sleep mode...

...

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