|This article or section documents something only available on the Raspberry Pi version of Scratch 3.0.|
|When Button () is ()|
when button (0 v) is [pressed v]:: extension hat
|Category||Raspberry Pi Simple Electronics|
The when button () is () block is a Raspberry Pi Simple Electronics block and a hat block. In the first option, numbers 0 through 27 can be inputted, with each number representing a GPIO pin. The second options are "pressed" and "released". The block activates when the specified LED is pressed or released, depending on the input.