You're right, although you can write your sketches using just JS: http://blog.spark.io/2014/09/29/blink-an-led-with-javascript/ http://blog.spark.io/2014/09/29/

You're right, although you can write your sketches using just JS: http://blog.spark.io/2014/09/29/blink-an-led-with-javascript/ http://blog.spark.io/2014/09/29/blink-an-led-with-javascript...