69 lines
1.3 KiB
Markdown
69 lines
1.3 KiB
Markdown
# Plot
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Turn on the LED light you say on the [LED screen](/device/screen).
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```sig
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led.plot(0,0);
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```
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## ~hint
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Use [unplot](/reference/led/unplot) to turn **off** an LED.
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## ~
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## Parameters
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* ``x`` is a [number](/types/number) that means the
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horizontal spot on the LED screen (from left to right: 0, 1, 2, 3,
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or 4)
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* ``y`` is a [number](/types/number) that means the vertical
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spot on the LED screen (from top to bottom: 0, 1, 2, 3, or 4)
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If a parameter is [out of bounds](/reference/out-of-bounds) (a value
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other than 0 to 4), then this function will do nothing.
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## ~hint
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The LED screen is a solid square of LEDs with five LEDs on each side.
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To learn more about how you number the LEDs with ``x`` and ``y``
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coordinates, see [LED screen](/device/screen).
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## ~
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## Example: One LED
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This program turns on the bottom right LED.
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```blocks
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led.plot(4, 4)
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```
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## Example: Square
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This program uses a [for loop](/blocks/loops/for)
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and the `plot` function
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to make a square around the edges of the LED screen.
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```blocks
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for (let i = 0; i < 5; i++) {
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led.plot(0, i)
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led.plot(4, i)
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led.plot(i, 0)
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led.plot(i, 4)
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basic.pause(500)
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}
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```
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## ~hint
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Use the [point](/reference/led/point) function to find out if an LED is
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on or off.
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## ~
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## See also
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[unplot](/reference/led/unplot), [point](/reference/led/point), [LED screen](/device/screen)
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