I have having a project of vibration monitoring using ADXL345 and Arduino. Is it possible to get velocity and displacement from the set of acceleration data collected from ADXL345?
I am try to use such sensors before to measure the velocity but I discovered it is too difficult and if one get results, these results donot have the required accuracy and may be needing to calibration.
For ADXL345 some users used below code but I think you are need the files (ADXL345.h, Wire.h )which are providing with the sensor.
#include
#include
const float alpha = 0.5;
double fXg = 0;
double fYg = 0;
double fZg = 0;
ADXL345 acc;
void setup()
{
acc.begin();
Serial.begin(9600);
delay(100);
}
void loop()
{
double pitch, roll, Xg, Yg, Zg;
acc.read(&Xg, &Yg, &Zg);
//Low Pass Filter to smooth out data
fXg = Xg * alpha + (fXg * (1.0 - alpha));
fYg = Yg * alpha + (fYg * (1.0 - alpha));
fZg = Zg * alpha + (fZg * (1.0 - alpha));
//Roll and Pitch Equations
roll = (atan2(-fYg, fZg)*180.0)/M_PI;
pitch = (atan2(fXg, sqrt(fYg*fYg + fZg*fZg))*180.0)/M_PI;
Serial.print(pitch);
Serial.print(" ");
Serial.println(roll);
delay(50);
}
If you this this answer help you, try to recommend it.
Dear Sir @ Tejas Turakhia, Do you have any guide on how to use it together with GPS and what its actual use on calculating velocity and distance?
Good Day Mr @Al-Sabur, I would like to know if this will be the same if the accelerometer will be put in stationary as it will be only getting the vibrational response of a structure so it will be put on one part of the building only.
Greetings Mr. Raheem Al-Sabur ,
Is it possible for us to find the acceleration using ADXL335 from the above code ?
Dear Pon Vignesh
I mentioned before , I am preferring to investigate the acceleration from displacement sensor , I was using another sensor (VN 100 https://www.vectornav.com/products/vn-100) where this tool given the three components of the acceleration.
Regarding to the code which you mentioned, it was widely used in Android application and you can got more information information such as
https://github.com/Anilm3/ADXL345-Accelerometer/blob/master/Arduino/examples/pitch_roll/pitch_roll.ino
https://forum.arduino.cc/t/help-with-adxl345-accelerometer/195186/3
https://oscarliang.com/use-gy80-arduino-adxl345-accelerometer/
I hope this reply help you with best regards
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