Diff: accelerometer.h

Revision:

0:0a76ae27065b

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/accelerometer.h	Wed May 05 12:10:15 2010 +0000
@@ -0,0 +1,54 @@
+/*
+Accelerometer driver.
+
+CPV, 4/9/2009
+*/
+
+#ifndef __ACCELEROMETER_H__
+#define __ACCELEROMETER_H__
+
+
+#include "mbed.h"
+#include "filters.h"
+
+
+class Accelerometer1D
+{
+public:
+  void initialise(PinName pin, int tau, int offset=0xffff>>1);
+  void tick(void) { m_filter.tick((int)AnalogIn(m_pin).read_u16()&0xfff0); }
+  int operator()(void) { return m_filter() - m_offset; }
+  int read(void) { return m_filter() - m_offset; }
+
+protected:
+  FilterIirI m_filter;
+  PinName m_pin;
+  int m_offset;
+};
+
+
+class Accelerometer2D
+{
+public:
+  Accelerometer2D(PinName ch0, PinName ch1, int tau, int offset=0xffff>>1);
+  void tick(void);
+  int read(int ch) { return m_channels[ch].read(); }
+
+protected:
+  Accelerometer1D m_channels[2];
+};
+
+
+class Accelerometer3D
+{
+public:
+  Accelerometer3D(PinName ch0, PinName ch1, PinName ch2, int tau, int offset=0xffff>>1);
+  void tick(void);
+  int read(int ch) { return m_channels[ch].read(); }
+
+protected:
+  Accelerometer1D m_channels[3];
+};
+
+
+#endif // __ACCELEROMETER_H__