Ivan Rush / Mbed 2 deprecated MMA8452_Demo

The main.cpp program below demonstrates a simple way to interface with the MMA8452 accelerometer. The function reads in the acceleration data in the X, Y, and Z directions and displays them through a serial com port on a PC. The Putty Output figure below shows the output of the accelerometer using Putty. The program also dims or brightens the mbed LEDs 1-3 based on whether or not they are at 'level'( 0 Gs) or above respectively. The video below previews the code in action.

Dependencies:   MMA8452 mbed

Fork of MMA8452_Test by Ashley Mills

main.cpp

Committer:
Ivannrush
Date:
2014-10-17
Revision:
8:46eab8a51f91
Parent:
6:e3100f66ed6a

File content as of revision 8:46eab8a51f91:

#include "mbed.h"
#include "MMA8452.h"
//Using MMA8452 accelerometer. SDA on 28, SCL on 27. Writes gravities to the screen. 
//Also brightens/dims LEDs 1-3 based on whether or not they are 'level'( 0 Gs)

Serial pc(USBTX,USBRX);
PwmOut led1(LED1);
PwmOut led2(LED2);
PwmOut led3(LED3);
   double x, y, z;
 
   MMA8452 acc(p28, p27, 100000);

int main() {
   
  while(1) {

      acc.readXYZGravity(&x,&y,&z);
      pc.printf("x:%lf   y:%lf z:%lf\r\n",x,y,z);
      led1 = abs(x);
      led2 = abs(y);
      led3 = abs(z);
      wait(.25);
   }
}