Arduino示例代码讲解：ADXL3xx 加速传感器

ADXL3xx 加速传感器

这段代码是一个Arduino示例程序，用于读取Analog Devices的ADXL3xx系列加速度传感器的三个轴的值，并通过串行通信将加速度值发送到计算机。代码中提到的硬件连接方式是为兼容SparkFun的加速度传感器模块设计的。它适用于需要测量加速度的场景，例如运动检测或倾斜测量。

/*
 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