electric imp code to make an led blink

electricimp - blink

// Everyone loves blinking LEDs, now you can too

local ledState = 0;

function blink()
{
  if (ledState == 1)
    ledState = 0;
  else
    ledState = 1;

  hardware.pin9.write(ledState);
  imp.wakeup(0.1, blink);
}

hardware.pin9.configure(DIGITAL_OUT_OD_PULLUP);
imp.configure("blinkblink", [], []);
blink();