Ashley Mills / Mbed 2 deprecated MMA8452_Test

A test program for the MMA8452 accelerometer

Dependencies:   MMA8452 mbed

The test program runs a bunch of tests for the MMA8452 accelerometer.

What is below is not the test program, but an example to whet your appetite about the library.

#include "mbed.h"
#include "MMA8452.h"

int main() {
   Serial pc(USBTX,USBRX);
   pc.baud(115200);
   double x = 0, y = 0, z = 0;

   MMA8452 acc(p28, p27, 40000);
   acc.setBitDepth(MMA8452::BIT_DEPTH_12);
   acc.setDynamicRange(MMA8452::DYNAMIC_RANGE_4G);
   acc.setDataRate(MMA8452::RATE_100);
   
   while(1) {
      if(!acc.isXYZReady()) {
         wait(0.01);
         continue;
      }
      acc.readXYZGravity(&x,&y,&z);
      pc.printf("Gravities: %lf %lf %lf\r\n",x,y,z);
   }
}

An easy way to test that this actually works is to run the loop above and hold the MMA8452 parallel to the ground along the respective axis (and upsidedown in each axis). You will see 1G on the respective axis and 0G on the others.

Diff: MMA8452.lib

Revision:
1:e9981919b524
Parent:
0:0c17274c3b7c
Child:
2:0630128bdb32
--- a/MMA8452.lib	Tue Mar 04 17:51:27 2014 +0000
+++ b/MMA8452.lib	Wed Mar 05 15:04:45 2014 +0000
@@ -1,1 +1,1 @@
-http://mbed.org/users/ashleymills/code/MMA8452/#172540ff6b8b
+http://mbed.org/users/ashleymills/code/MMA8452/#4bd8b4cd479d