diff --git a/nodejs/ar-com/rc.js b/nodejs/ar-com/rc.js
index df9836b..40763b1 100644
--- a/nodejs/ar-com/rc.js
+++ b/nodejs/ar-com/rc.js
@@ -3,7 +3,7 @@
 var RC = function (arduino, pin) {
   if(!arduino){throw new Error('Arduino must be set');}
   this.arduino = arduino;
-  this.pin = pin;
+  this.pin = pin && pin || 11;
 }
 
 RC.prototype.send = function(tristate) {