# Toggle All Toggle all the 25 LEDs on the [LED screen](/microbit/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() ``` ![](/static/mb/toggle-all-0.png) ### See also [toggle](/microbit/reference/led/toggle), [LED screen](/microbit/device/screen), [clear screen](/microbit/reference/basic/clear-screen)