Updated to latest version. Added in new version of the Siren

Dependencies:   mbed-src

Fork of VolundrIntroCase2015 by Volundr

Revision:
4:17d1343916ec
Parent:
3:ce51f3857195
--- a/main.cpp	Sun Aug 16 11:44:48 2015 +0000
+++ b/main.cpp	Fri Aug 12 16:30:45 2016 +0000
@@ -17,6 +17,7 @@
 
 PwmOut in3(p26);
 PwmOut in4(p25);
+PwmOut block(p24);
 
 DigitalOut en_a(p21);
 DigitalOut en_b(p22);
@@ -61,6 +62,10 @@
     in2.period_us(100);
     in3.period_us(100);
     in4.period_us(100);
+    
+// Set Block frequency of Siren to 2 Hz with DC of 50%
+    block.period(1.0f);
+    block.write(0.50f);
 
     in1.write(0.0);
     in2.write(0.0);