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63 lines
1.7 KiB
C++
63 lines
1.7 KiB
C++
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/*
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ADXL3xx
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Reads an Analog Devices ADXL3xx accelerometer and communicates the
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acceleration to the computer. The pins used are designed to be easily
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compatible with the breakout boards from Sparkfun, available from:
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http://www.sparkfun.com/commerce/categories.php?c=80
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http://www.arduino.cc/en/Tutorial/ADXL3xx
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The circuit:
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analog 0: accelerometer self test
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analog 1: z-axis
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analog 2: y-axis
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analog 3: x-axis
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analog 4: ground
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analog 5: vcc
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created 2 Jul 2008
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by David A. Mellis
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modified 30 Aug 2011
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by Tom Igoe
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This example code is in the public domain.
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*/
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// these constants describe the pins. They won't change:
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const int groundpin = 18; // analog input pin 4 -- ground
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const int powerpin = 19; // analog input pin 5 -- voltage
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const int xpin = A3; // x-axis of the accelerometer
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const int ypin = A2; // y-axis
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const int zpin = A1; // z-axis (only on 3-axis models)
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void setup() {
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// initialize the serial communications:
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Serial.begin(9600);
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// Provide ground and power by using the analog inputs as normal
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// digital pins. This makes it possible to directly connect the
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// breakout board to the Arduino. If you use the normal 5V and
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// GND pins on the Arduino, you can remove these lines.
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pinMode(groundpin, OUTPUT);
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pinMode(powerpin, OUTPUT);
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digitalWrite(groundpin, LOW);
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digitalWrite(powerpin, HIGH);
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}
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void loop() {
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// print the sensor values:
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Serial.print(analogRead(xpin));
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// print a tab between values:
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Serial.print("\t");
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Serial.print(analogRead(ypin));
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// print a tab between values:
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Serial.print("\t");
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Serial.print(analogRead(zpin));
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Serial.println();
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// delay before next reading:
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delay(100);
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}
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