.. highlight:: cpp .. _lang-toggleled: toggleLED() =========== *Toggle* the built-in LED: switch it from off to on, or on to off. Library Documentation --------------------- .. doxygenfunction:: toggleLED Example ------- .. _lang-toggleled-example: This example sets up the board's LED pin for output, then toggles the LED every 100 milliseconds:: void setup() { pinMode(BOARD_LED_PIN, OUTPUT); } void loop() { toggleLED(); delay(100); } See Also -------- - :ref:`BOARD_LED_PIN <lang-board-values-led>` - :ref:`togglePin() <lang-togglepin>`