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Arduino示例代码讲解:ADXL3xx 加速传感器
- ADXL3xx 加速传感器
- 功能概述
- 硬件部分:
- 软件部分:
- 代码逐行解释
- 定义常量
- `setup()` 函数
- `loop()` 函数
- 工作原理
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。
/*ADXL3xxReads an Analog Devices ADXL3xx accelerometer and communicates theacceleration to the computer. The pins used are designed to be easilycompatible with the breakout boards from Sparkfun, available from:http://www.sparkfun.com/commerce/categories.php?c=80http://www.arduino.cc/en/Tutorial/ADXL3xxThe circuit:analog 0: accelerometer self testanalog 1: z-axisanalog 2: y-axisanalog 3: x-axisanalog 4: groundanalog 5: vcccreated 2 Jul 2008by David A. Mellismodified 30 Aug 2011by Tom IgoeThis 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