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.

» UT 05: Get free memory

This example shows how to get the actual free memory in RAM memory.

Required Materials

1 x Waspmote
1 x Battery
1 x MiniUSB wire

Notes

This example can be executed in Waspmote v12 and Waspmote v15

Code

/*
 *  ------ [Ut_05] Get Free Memory  --------
 *
 *  Explanation: This example shows how to get the actual free memory
 *  in RAM memory.
 *
 *  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:    Yuri Carmona
 */

char* pointer;

void setup()
{
  // Init USB
  USB.ON();
  USB.println(F("UT_05 example"));
  
  USB.print(F("Initial free Memory (Bytes):"));
  USB.println(freeMemory());  
  USB.print(F("-----------------------------"));

}

void loop()
{
  // See how dynamic memory consumes RAM memory during code
  pointer = (char*)calloc(1,100); 
  
  USB.print(F("\nfree Memory:"));
  USB.println(freeMemory());
  
  // free memory
  free(pointer);
  pointer=NULL;
  
  delay(3000);
}


Output

H#
UT_05 example
Initial free Memory (Bytes):7508
-----------------------------
free Memory:7406

free Memory:7406


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