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Fork of
_HW3_DHT_TCP
by 
JamEon Jeong
MMA7455 Class Reference
Freescale Accelerometer MMA7455. More...
#include <MMA7455.h>
Public Types | |
| enum | Range |
Acceleration range. More... | |
Public Member Functions | |
| MMA7455 (PinName sda, PinName scl) | |
| Create an interface to the MMA7455 accelerometer. | |
| bool | calibrate () |
| Calibrate for 0g, that is, calculate offset to achieve 0g values when accelerometer is placed on flat surface. | |
| bool | getCalibrationOffsets (int32_t &xOff, int32_t &yOff, int32_t &zOff) |
| Get calculated offset values. | |
| bool | setCalibrationOffsets (int32_t xOff, int32_t yOff, int32_t zOff) |
| Set calibration offset values. | |
Detailed Description
Freescale Accelerometer MMA7455.
Definition at line 8 of file MMA7455.h.
Member Enumeration Documentation
Constructor & Destructor Documentation
| MMA7455 | ( | PinName | sda, |
| PinName | scl | ||
| ) |
Create an interface to the MMA7455 accelerometer.
- Parameters:
-
sda I2C data line pin scl I2C clock line pin
Definition at line 55 of file MMA7455.cpp.
Member Function Documentation
| bool calibrate | ( | ) |
Calibrate for 0g, that is, calculate offset to achieve 0g values when accelerometer is placed on flat surface.
Please make sure the accelerometer is placed on a flat surface before calling this function.
- Returns:
- true if request was successful; otherwise false
Definition at line 156 of file MMA7455.cpp.
| bool getCalibrationOffsets | ( | int32_t & | xOff, |
| int32_t & | yOff, | ||
| int32_t & | zOff | ||
| ) |
Get calculated offset values.
Offsets will be calculated by the calibrate() method.
Use these values and put them in persistent storage to avoid having to calibrate the accelerometer after a reset/power cycle.
- Parameters:
-
xOff x offset is written to this argument yOff y offset is written to this argument zOff z offset is written to this argument
- Returns:
- true if request was successful; otherwise false
Definition at line 232 of file MMA7455.cpp.
| bool setCalibrationOffsets | ( | int32_t | xOff, |
| int32_t | yOff, | ||
| int32_t | zOff | ||
| ) |
Set calibration offset values.
These values should normally at one point in time have been retrieved by calling the getCalibrationOffsets method.
- Parameters:
-
xOff x offset yOff y offset zOff z offset
- Returns:
- true if request was successful; otherwise false
Definition at line 224 of file MMA7455.cpp.
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