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General / Interrupts:

» Int 03: Accelerometer interrupt

This example shows how to manage the accelerometer interruption.

Required Materials

Code

/*
 *  ------ [Int_3] Setting Accelerometer interrupt example -------- 
 *
 *  Explanation: This example shows how to manage Accelerometer 
 *  Interruption
 *
 *  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:         Alberto Bielsa
 */
 
void setup()
{ 
  USB.ON();
  USB.println(F("INT_03 example"));
   
}


void loop()
{
  // Starts accelerometer
  ACC.ON();
  
  // set Free Fall interruption 
  ACC.setFF(); 
  
  USB.println(F("Waspmote goes into sleep mode until the Accelerometer causes an interrupt"));
  
  // enter sleep mode
  PWR.sleep(ALL_OFF);
  
  USB.ON();
  USB.println(F("\r\nWaspmote wake up - Accelerometer interrupt detected!!\r\n"));
  
  // Waspmote wakes up when accelerometer wakes it up
  if( intFlag & ACC_INT )
  {
      USB.println("---------------------");
      USB.println("ACC INT captured");
      USB.println("---------------------");
      
      // Clear flag
      intFlag &= ~(ACC_INT);
      
      for(int i=0; i<10; i++)
      {
        Utils.blinkLEDs(50);
        delay(50);
      }
  }

}

Output

B#
INT_03 example
Waspmote goes into sleep mode until the Accelerometer causes an interrupt

Waspmote wake up - Accelerometer interrupt detected!!

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