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|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 can only be used with a LEGO WeDo Construction Set.