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.

» Acc 03: Tilt measurement

This example shows how to get the acceleration on the different axis and calculate the tilt of Waspmote.

Required Materials

1 x Waspmote
1 x MiniUSB wire

Notes

This example can be executed in Waspmote v12 and Waspmote v15

Code

/*
 *  ------ [ACC_3] Waspmote Accelerometer tilt measurement --------
 *
 *  Explanation: This example shows how to get the acceleration on the
 *  different axis and calculate the tilt of Waspmote
 *
 *  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:    Marcos Yarza
 */


void setup()
{
  ACC.ON(FS_2G);
  USB.ON(); // starts using the serial port
  USB.println(F("ACC_03 example"));
}

void loop()
{

  
  float x_acc = ACC.getX();
  if (x_acc > 1000) x_acc = 1000;
  if (x_acc < -1000) x_acc = -1000;
  float angle_x = (180 / PI) * asin(x_acc/1000);
  
  float y_acc = ACC.getY();
  if (y_acc > 1000) y_acc = 1000;
  if (y_acc < -1000) y_acc = -1000;
  float angle_y = (180 / PI) * asin(y_acc/1000);
  
  float z_acc = ACC.getZ();
  if (z_acc > 1000) z_acc = 1000;
  if (z_acc < -1000) z_acc = -1000;
  float angle_z = (180 / PI) * asin(z_acc/1000);
  
  USB.println(F("+++++++++++++++++++++++++++++++++"));
  USB.print(F("Acceleration X: "));
  USB.print(x_acc,DEC);
  USB.print(F(" | X angle: "));
  USB.println(angle_x);
  
  USB.print(F("Acceleration Y: "));
  USB.print(y_acc,DEC);
  USB.print(F(" | Y angle: "));
  USB.println(angle_y);
  
  USB.print(F("Acceleration Z: "));
  USB.print(z_acc,DEC);
  USB.print(F(" | Z angle: "));
  USB.println(angle_z);
 
  delay(500);
  
}


Output

H#
ACC_03 example
+++++++++++++++++++++++++++++++++
Acceleration X: -66 | X angle: -3.7842721939
Acceleration Y: -11 | Y angle: -0.6302662372
Acceleration Z: 970 | Z angle: 75.9301376342
+++++++++++++++++++++++++++++++++
Acceleration X: -67 | X angle: -3.8416948318
Acceleration Y: -25 | Y angle: -1.4325436592
Acceleration Z: 964 | Z angle: 74.5794219970
+++++++++++++++++++++++++++++++++
Acceleration X: 40 | X angle: 2.2924425601
Acceleration Y: -287 | Y angle: -16.6784343719
Acceleration Z: 932 | Z angle: 68.7487487792
+++++++++++++++++++++++++++++++++
Acceleration X: 22 | X angle: 1.2606086730
Acceleration Y: -523 | Y angle: -31.5336971282
Acceleration Z: 829 | Z angle: 55.9961433410
+++++++++++++++++++++++++++++++++
Acceleration X: -798 | X angle: -52.9395370483
Acceleration Y: 122 | Y angle: 7.0075411796
Acceleration Z: 540 | Z angle: 32.6836395263

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