Library for driving the MMA8452 accelerometer over I2C
Dependents: MMA8452_Test MMA8452_Demo Dualing_Tanks IMU-Controlled_MP3_Player ... more
Here is a simple example:
#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.
Revisions of MMA8452.h
Revision | Date | Message | Actions |
---|---|---|---|
5:b3d0abd97e55 | 2013-10-16 | adding method for getting control reg 1.; | File Diff Annotate |
3:ffb0b1650ca2 | 2013-10-16 | mma8452 0.1 - basic functions supported. ; Still going under test. | File Diff Annotate |
2:66db0f91b215 | 2013-10-08 | whoami tested and working | File Diff Annotate |
1:ef026bf28798 | 2013-10-08 | adding device id method detection | File Diff Annotate |
0:bcf2aa85d7f9 | 2013-10-04 | Initial commit fro mma8452 | File Diff Annotate |