Connect the two outside pins to power (5V, +) and ground (GND, -). It
does not matter which. The middle pin connects to one of the “analong
inputs” A0 through A5. Memorize this setup.
Basic coding
The
analog reading () :: #468cfc reporter
block gets a number from 0 to 1023 for your program, based on the
voltage of the input you select.
I will use the value :: variables reporter for the variable that holds the reading from
the potentiometer. You should name the variable whatever makes sense
for you. Sometimes “brightness” is a good name.
when green flag clicked
forever
set [the value v] to (analog reading (2) :: #468cfc)
say (the value) for (0.5) seconds
set pin (9 v) to value ((the value) / (4)) :: #468cfc