Additional AnalogIn example

Revision:
0:cb98929b3895
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp	Thu Jan 19 14:20:06 2017 -0600
@@ -0,0 +1,17 @@
+#include "mbed.h"
+
+AnalogIn input(A0);
+
+int main() {
+    uint16_t samples[1024];
+
+    for(int i=0; i<1024; i++) {
+        samples[i] = input.read_u16();
+        wait(0.001f);
+    }
+
+    printf("Results:\n");
+    for(int i=0; i<1024; i++) {
+        printf("%d, 0x%04X\n", i, samples[i]);
+    }
+}