Additional AnalogIn example

Revision:
0:267d01ecb3ec
diff -r 000000000000 -r 267d01ecb3ec main.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp	Thu Jan 19 14:20:27 2017 -0600
@@ -0,0 +1,16 @@
+#include "mbed.h"
+
+AnalogIn ain(A0);
+DigitalOut led1(LED1);
+DigitalOut led2(LED2);
+DigitalOut led3(LED3);
+DigitalOut led4(LED4);
+
+int main() {
+    while (1){
+        led1 = (ain > 0.2f) ? 1 : 0;
+        led2 = (ain > 0.4f) ? 1 : 0;
+        led3 = (ain > 0.6f) ? 1 : 0;
+        led4 = (ain > 0.8f) ? 1 : 0;
+    }
+}