Programa

Dependencies:   mbed

Revision:
0:782b008e3b3a
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/MMA8451Q.h	Tue Mar 02 22:37:23 2021 +0000
@@ -0,0 +1,92 @@
+#ifndef MMA8451Q_H
+#define MMA8451Q_H
+ 
+#include "mbed.h"
+ 
+/**
+* MMA8451Q accelerometer example
+*
+* @code
+* #include "mbed.h"
+* #include "MMA8451Q.h"
+* 
+* #define MMA8451_I2C_ADDRESS (0x1d<<1)
+* 
+* int main(void) {
+* 
+* MMA8451Q acc(P_E25, P_E24, MMA8451_I2C_ADDRESS);
+* PwmOut rled(LED_RED);
+* PwmOut gled(LED_GREEN);
+* PwmOut bled(LED_BLUE);
+* 
+*     while (true) {       
+*         rled = 1.0 - abs(acc.getAccX());
+*         gled = 1.0 - abs(acc.getAccY());
+*         bled = 1.0 - abs(acc.getAccZ());
+*         wait(0.1);
+*     }
+* }
+* @endcode
+*/
+class MMA8451Q
+{
+public:
+  /**
+  * MMA8451Q constructor
+  *
+  * @param sda SDA pin
+  * @param sdl SCL pin
+  * @param addr addr of the I2C peripheral
+  */
+  MMA8451Q(PinName sda, PinName scl, int addr);
+ 
+  /**
+  * MMA8451Q destructor
+  */
+  ~MMA8451Q();
+ 
+  /**
+   * Get the value of the WHO_AM_I register
+   *
+   * @returns WHO_AM_I value
+   */
+  uint8_t getWhoAmI();
+ 
+  /**
+   * Get X axis acceleration
+   *
+   * @returns X axis acceleration
+   */
+  float getAccX();
+ 
+  /**
+   * Get Y axis acceleration
+   *
+   * @returns Y axis acceleration
+   */
+  float getAccY();
+ 
+  /**
+   * Get Z axis acceleration
+   *
+   * @returns Z axis acceleration
+   */
+  float getAccZ();
+ 
+  /**
+   * Get XYZ axis acceleration
+   *
+   * @param res array where acceleration data will be stored
+   */
+  void getAccAllAxis(float * res);
+ 
+private:
+  I2C m_i2c;
+  int m_addr;
+  void readRegs(int addr, uint8_t * data, int len);
+  void writeRegs(uint8_t * data, int len);
+  int16_t getAccAxis(uint8_t addr);
+ 
+};
+ 
+#endif  
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