interrupts.adoc

title	categories	subCategories
interrupts()	Functions	Interrupts

interrupts()

Description

Re-enables interrupts (after they’ve been disabled by noInterrupts(). Interrupts allow certain important tasks to happen in the background and are enabled by default. Some functions will not work while interrupts are disabled, and incoming communication may be ignored. Interrupts can slightly disrupt the timing of code, however, and may be disabled for particularly critical sections of code. They can also cause races, code that behaves differently, and incorrectly, in response to tiny changes in timing. See the attachInterrupt() page for further information.

Syntax

interrupts()

Parameters

None

Returns

Nothing

Example Code

The code enables Interrupts.

void setup() {}

void loop() {
  noInterrupts();
  // critical, time-sensitive code here
  interrupts();
  // other code here
}

See also

• LANGUAGE attachInterrupts()

• LANGUAGE detachInterrupts()