Diff: TouchSensor.h

Revision:

0:8d34cc2ff388

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/TouchSensor.h	Sun Mar 16 01:48:59 2014 +0000
@@ -0,0 +1,52 @@
+/* TouchSensor.h
+ * Tested with mbed board: FRDM-KL46Z
+ * Author: Mark Gottscho
+ * mgottscho@ucla.edu
+ */
+
+#ifndef TOUCHSENSOR_H
+#define TOUCHSENSOR_H
+
+#include "mbed.h"
+#include "TSISensor.h"
+#include "PeriodicSensor.h"
+
+class TouchSensor : public PeriodicSensor {
+    public:
+        /**
+         * Initialize the touch sensor
+         */
+        TouchSensor();
+        
+        /**
+         * Destroy the touch sensor
+         */
+        ~TouchSensor();
+        
+        /**
+         * Read Touch Sensor percentage value.
+         * @param sampleNow if true, queries the device for the sample and returns it. if false, gets the last queried value.
+         * @returns percentage value between [0 ... 1]
+         */
+        float getPercentage(bool sampleNow);
+        
+        /**
+         * Read Touch Sensor distance
+         * @param sampleNow if true, queries the device for the sample and returns it. if false, gets the last queried value.
+         * @returns distance in mm. The value is between [0 ... 40]
+         */
+        uint8_t getDistance(bool sampleNow);
+        
+    private:
+        /**
+         * Interrupt service routine for sampling the touch sensor.
+         */
+        virtual void __sample_data_ISR();
+    
+        TSISensor __sensor;
+        
+        volatile uint8_t __distance;
+        volatile float __percentage;
+};
+
+#endif
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