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