|Please expand this article or section. You can help by talk page.if you are an editor. More information might be found in a section of the|
|When Distance () ()|
The When Distance () () block is a LEGO WeDo block and a Hat block. The block activates when the distance is less than or greater than the specified value, depending on the argument selected from the drop-down menu. Prior to Scratch 2.0, this block did not take a comparison argument but remained with a less-than sign constantly. This block is not very commonly used. 
This block can only be used with a LEGO WeDo Construction Set.