Diff: solenoid.cpp

Revision:

0:6b5c0ae5acc6

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/solenoid.cpp	Fri Apr 29 20:01:29 2016 +0000
@@ -0,0 +1,30 @@
+#include "mbed.h"
+#include "solenoid.h"
+Solenoid::Solenoid(PinName pin, float ondelay, float offdelay) : _pin(pin), ontime(ondelay), offtime(offdelay)
+{
+    _pin=0;
+    offtimer.start();
+ 
+}
+void Solenoid::Solenoid_Off_Int()
+{
+    _pin=0;//OFF timer interrupt routine to auto turn off solenoid
+    offtimer.start(); //start off-time delay count
+}
+void Solenoid::write(bool value)
+{
+    if (value!=0) {//ON so do auto off with timer interrupt
+        while(offtimer.read() < offtime); //wait for min OFF time before next ON allowed
+        offtimer.stop();
+        offtimer.reset(); //reset off timer delay count
+        tint.attach(this,&Solenoid::Solenoid_Off_Int,ontime);//setup a timer interrupt for on time
+    } else
+        offtimer.start(); //solenoid turned off with a write call (not timers) so start off count
+    _pin = value;
+}
+Solenoid& Solenoid::operator= (bool value)
+{
+    write(value);
+    return *this;
+}
+