When GPIO () is () (block)

This article or section documents something only available on the Raspberry Pi version of Scratch 3.0.

When GPIO is () is ()
when gpio (0 v) is [high v] :: extension hat
Category	Raspberry Pi GPIO
Type	Hat
Introduced in	3.0

The when gpio () is () block is a Raspberry Pi GPIO block and a hat block. Its options for the first input are the numbers 0 through 27, with each number representing a GPIO pin. The second options are "high" and "low", representing a state that the pin can be set to. The hat block activates when the state has been set for that pin.