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Accelerometer connection

Accelerometer connection

I am currently connecting the memsic 2125 dual axis accelerometer to an old floppy ribbon cable.

The cable will also carry current to a LED flashlight that will illuminate the path of the robot as well as an Infrared LED that will command neighboring devices that have IR remote control :) ( Tv , aircondition , etc. )

I ve found code to integrate it with arduino http://arduino.cc/en/Tutorial/Memsic2125?from=Tutorial.AccelerometerMemsic2125

Code:

/*
   Memsic2125
  
   Read the Memsic 2125 two-axis accelerometer.  Converts the
   pulses output by the 2125 into milli-g's (1/1000 of earth's
   gravity) and prints them over the serial connection to the
   computer.
  
   The circuit:
  * X output of accelerometer to digital pin 2
  * Y output of accelerometer to digital pin 3
  * +V of accelerometer to +5V
  * GND of accelerometer to ground
  
   http://www.arduino.cc/en/Tutorial/Memsic2125
  
   created 6 Nov 2008
   by David A. Mellis
   modified 30 Jun 2009
   by Tom Igoe
  
   This example code is in the public domain.
 
 */
 
// these constants won't change:
const int xPin = 2;    // X output of the accelerometer
const int yPin = 3;    // Y output of the accelerometer
 
void setup() {
  // initialize serial communications:
  Serial.begin(9600);
  // initialize the pins connected to the accelerometer
  // as inputs:
  pinMode(xPin, INPUT);
  pinMode(yPin, INPUT);
}
 
void loop() {
  // variables to read the pulse widths:
  int pulseX, pulseY;
  // variables to contain the resulting accelerations
  int accelerationX, accelerationY;
  
  // read pulse from x- and y-axes:
  pulseX = pulseIn(xPin,HIGH);  
  pulseY = pulseIn(yPin,HIGH);
  
  // convert the pulse width into acceleration
  // accelerationX and accelerationY are in milli-g's:
  // earth's gravity is 1000 milli-g's, or 1g.
  accelerationX = ((pulseX / 10) - 500) * 8;
  accelerationY = ((pulseY / 10) - 500) * 8;
 
  // print the acceleration
  Serial.print(accelerationX);
  // print a tab character:
  Serial.print("\t");
  Serial.print(accelerationY);
  Serial.println();
 
  delay(100);
}

This entry was posted on September 26th, 2010 at 01:46:40 pm by admin and is filed under Background.