|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.
Some example uses for this block are:
- Activating a motor when the distance sensor is activated
when distance [< v] (10)::wedo turn [motor v] on for (0.25) seconds::wedo
- Reporting the distance when it is less than a specified value
when distance [< v] (50)::wedo repeat until <(distance::wedo) > (50)> say (distance::wedo)