Diff: FlowMeter.cpp

Revision:

0:195a3c58c944

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/FlowMeter.cpp	Thu Apr 28 19:53:59 2016 +0000
@@ -0,0 +1,44 @@
+#include "FlowMeter.h"
+
+void FlowMeter::handle_pulse_irq(void)
+{
+    _pulses++;
+}
+
+FlowMeter::FlowMeter(PinName out) : _pin(out)
+{
+    _pulses = 0;
+    _pin.rise(this, &FlowMeter::handle_pulse_irq);
+
+}
+
+long FlowMeter::get_pulse_count(void)
+{
+    return _pulses;
+}
+
+float FlowMeter::get_fl_oz(void)
+{
+    return pulses_to_fl_oz(_pulses);
+}
+
+float FlowMeter::get_ml(void)
+{
+    return pulses_to_ml(_pulses);
+}
+
+float FlowMeter::pulses_to_ml(int pulses)
+{
+    return ((float)pulses) / 2.2222222f; // pulses per mL.
+}
+
+float FlowMeter::pulses_to_fl_oz(int pulses)
+{
+    return ((float)pulses) / 13.308294f; // pulses per fl oz.
+}
+
+
+void FlowMeter::reset(void)
+{
+    _pulses = 0;
+}