Anvendelse af ADXL335 three-axis accelerometer- GY-61

Materialer:

• En Arduino UNO
• En ADXL335 three-axis accelerometer- GY-61
• Ledninger

Komponentplacering:

Programmering:

//Analog read pins
const int xPin = 0;
const int yPin = 1;
const int zPin = 2;

//The minimum and maximum values that came from
//the accelerometer while standing still
//You very well may need to change these
int minVal = 265;
int maxVal = 402;

//to hold the caculated values
double x;
double y;
double z;

void setup(){
Serial.begin(9600);
}

void loop(){

//read the analog values from the accelerometer
int xRead = analogRead(xPin);
int yRead = analogRead(yPin);
int zRead = analogRead(zPin);

//convert read values to degrees -90 to 90 – Needed for atan2
int xAng = map(xRead, minVal, maxVal, -90, 90);
int yAng = map(yRead, minVal, maxVal, -90, 90);
int zAng = map(zRead, minVal, maxVal, -90, 90);

//Caculate 360deg values like so: atan2(-yAng, -zAng)
//atan2 outputs the value of -π to π (radians)
//We are then converting the radians to degrees
x = RAD_TO_DEG * (atan2(-yAng, -zAng) + PI);
y = RAD_TO_DEG * (atan2(-xAng, -zAng) + PI);
z = RAD_TO_DEG * (atan2(-yAng, -xAng) + PI);

//Output the caculations
Serial.print(“x: “);
Serial.print(x);
Serial.print(” | y: “);
Serial.print(y);
Serial.print(” | z: “);
Serial.println(z);

delay(100);//just here to slow down the serial output – Easier to read
}

Data fra accelerometer: