diff --git a/LED.bs2 b/LED.bs2
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--- /dev/null
+++ b/LED.bs2
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+' {$STAMP BS2}
+' {$PBASIC 2.5}
+
+LED PIN 8
+GREENLED PIN 7
+DWELL CON 1000
+
+' set io01 and 02 as INPUT
+INPUT 1
+INPUT 2
+
+Main:
+  DO
+   HIGH LED
+   LOW GREENLED
+   PAUSE DWELL
+   LOW LED
+   HIGH GREENLED
+   PAUSE DWELL
+   DEBUG "."
+   ' debug status of PIN1 and 2
+   DEBUG ? IN1
+   DEBUG ? IN2
+  LOOP
+END
\ No newline at end of file