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

Diff: main.cpp

Revision:
2:0630128bdb32
Parent:
1:e9981919b524
Child:
3:2a8e59a590db
--- a/main.cpp	Wed Mar 05 15:04:45 2014 +0000
+++ b/main.cpp	Wed Mar 05 15:36:30 2014 +0000
@@ -162,7 +162,9 @@
     sampleMMA8452Counts(&acc,100);
 
     LOG("Samping gravities");
-    sampleMMA8452Gravities(&acc,100);
+    acc.setBitDepth(MMA8452::BIT_DEPTH_8);
+    acc.setDynamicRange(MMA8452::DYNAMIC_RANGE_4G);
+    sampleMMA8452Gravities(&acc,2000);
 
     return true;
 }