Kaoru Onoe
Analog-to-binary input with hysteresis
Dependents: Hysteresis LAB9_Hysteresis LAB18_StreetLight
Diff: HysteresisIn.h
- Revision:
- 0:fe43537bd3d6
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/HysteresisIn.h Fri Dec 20 19:21:57 2013 +0000
@@ -0,0 +1,26 @@
+// ==================================================== Dec 21 2013, kayeks ==
+// HysteresisIn.h
+// ===========================================================================
+// Analog to binary input class with hysteresis
+// - For a simple Schmitt-Trigger substitute
+
+#ifndef HYSTERESIS_IN_H_
+#define HYSTERESIS_IN_H_
+
+#include "mbed.h"
+
+class HysteresisIn {
+private:
+ AnalogIn in;
+ float thresholdHighToLow;
+ float thresholdLowToHigh;
+ bool state;
+
+public:
+ HysteresisIn(PinName inputPin, float htl, float lth, bool initialState=0);
+ ~HysteresisIn();
+ bool read();
+ void write(bool newState);
+};
+
+#endif