1 files changed, 45 insertions, 0 deletions

diff --git a/arduino/rpmcount/Counter.h b/arduino/rpmcount/Counter.h
new file mode 100755
index 0000000..f832023
--- /dev/null
+++ b/arduino/rpmcount/Counter.h
@@ -0,0 +1,45 @@
+#pragma once
+
+class Counter
+{
+public:
+
+    enum State
+    {
+        READY,
+        WAITING_FOR_TIMEOUT,
+        COUNTING,
+        SIGNALING
+    };
+
+public:
+
+    void init (unsigned long startDelay, unsigned long rpmCount, unsigned long signalsPerRPM);
+
+    void setStartDelay (unsigned long);
+
+    void setRPMCount (unsigned long);
+
+    void setSignalsPerRPM (unsigned long);
+
+    void start (unsigned long startTime);
+
+    void reset ();
+
+    void update (unsigned long time, int rpmSignal);
+
+    State getState () const;
+
+private:
+
+    State state;
+
+    unsigned long startDelay;
+    unsigned long rpmCount;
+    unsigned long signalsPerRPM;
+    unsigned long startTime;
+
+    unsigned long signals;
+
+    bool lastRpmSignal;
+};