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MMA7660 Accelerometer
The MMA7660 is a 6-bit triple-axis accelerometer with +/- 1.5g range. Its a low power sensor mainly to be used for orientation detection of mobile devices and uses an I2C interface.
Hello World!¶
Import program
00001 //Uses the measured z-acceleration to drive leds 2 and 3 of the mbed 00002 00003 #include "mbed.h" 00004 #include "MMA7660.h" 00005 00006 MMA7660 MMA(p28, p27); 00007 00008 DigitalOut connectionLed(LED1); 00009 PwmOut Zaxis_p(LED2); 00010 PwmOut Zaxis_n(LED3); 00011 00012 int main() { 00013 if (MMA.testConnection()) 00014 connectionLed = 1; 00015 00016 while(1) { 00017 Zaxis_p = MMA.z(); 00018 Zaxis_n = -MMA.z(); 00019 } 00020 00021 }
Library¶
Import library
Public Types |
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| enum | Orientation |
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The 6 different orientations and unknown. More... |
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Public Member Functions |
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| MMA7660 (PinName sda, PinName scl, bool active=true) | |
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Creates a new
MMA7660
object.
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| bool | testConnection (void) |
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Tests if communication is possible with the
MMA7660
.
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| void | setActive (bool state) |
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Sets the active state of the
MMA7660
.
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| void | readData (int *data) |
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Reads acceleration data from the sensor.
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| float | x (void) |
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Get X-data.
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| float | y (void) |
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Get Y-data.
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| float | z (void) |
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Get Z-data.
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| void | setSampleRate (int samplerate) |
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Sets the active samplerate.
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| Orientation | getSide (void) |
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Returns if it is on its front, back, or unknown side.
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| Orientation | getOrientation (void) |
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Returns if it is on it left, right, down or up side.
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| MMA7660 Signal Name | mbed pin |
|---|---|
| Vdd | Vout |
| Vss | Gnd |
| SCL | p27 |
| SDA | p28 |