pxt-calliope/docs/reference/led/toggle-all.md

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# Toggle All
Toggle all the 25 LEDs on the [LED screen](/device/screen) - if an LED is on before the function is called, it will be off after; if an LED is off before the function is called, it will be on after.
```sig
led.toggleAll()
```
## Parameters
* none
## Example
The following code will result in every LED being on except for the LED at coordinate (2,2)
```blocks
basic.clearScreen()
led.plot(2, 2)
led.toggleAll()
```
```sim
basic.clearScreen()
led.plot(2, 2)
led.toggleAll()
```
## See also
[toggle](/reference/led/toggle), [LED screen](/device/screen), [clear screen](/reference/basic/clear-screen)