Diff: main.cpp

Revision:

0:413a44475256

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp	Thu Dec 03 02:36:22 2015 +0000
@@ -0,0 +1,67 @@
+#include "mbed.h"
+
+PwmOut led(LED1); // led 1 indicates dim value
+DigitalOut led2(LED2); // led 2 indicates delay time for interrupts
+
+DigitalOut SSR(p27);
+Serial pc(p9,p10);
+Timeout SSRtriggerOn;
+DigitalOut foco(p16);
+DigitalOut motor(p17);
+DigitalOut elec(p20);
+Ticker cruce;
+
+volatile float dim;
+const float powerlinefrequency=60.000;
+
+void triggerOn()
+{
+    SSR = 1;
+    led2=0;
+}
+
+ void dimmer()
+{
+    // turn off SSR at zero crossing
+    SSR = 0;
+    // compute time delay using dim value and set timer interrupt
+    // triggers SSR after a small post zero crossing time delay
+    SSRtriggerOn.attach(&triggerOn,(dim)/(2*powerlinefrequency));
+    led2=1;
+}
+
+int main()
+{
+    cruce.attach(&dimmer, 0.00833333);
+    foco=0;
+    motor=0;
+    elec=0;
+    
+    float m;
+    //set up interrupt routine to detect AC line zero crossings
+   
+    m=180;
+    // main program only sets dimmer level (dim)
+    // interrupt routines dim the light
+    while(1) {
+        char da=pc.getc();
+        //increase brightness
+        if(da=='y')
+        {
+            if(m<180)m=m+5;
+        }
+        if(da=='x')
+        {
+            if(m>0)m=m-5;
+        }
+        dim=m/180+0.001;
+        if(da=='c')foco=1;
+        if(da=='d')foco=0;
+        if(da=='a')motor=1;
+        if(da=='b')motor=0;
+        if(da=='e')elec=1;
+        if(da=='f')elec=0;
+        printf("\n\rGrados: %f, %c",m,da);
+        
+    }
+}   
\ No newline at end of file