# App LED - OSC
[OSC]

Control the Application Board's Status LEDs via OSC. More...

Control the Application Board's Status LEDs via OSC.

## Devices

There are 4 LEDs on the Make Application Board, numbered 0 - 3.

## Properties

The LEDs have two properties:

- state
- active

State
  The state property corresponds to the on/off state of a given LED. For example, to turn on the first LED, send a message like

      /appled/0/state 1

  To turn it off, send the message

      /appled/0/state 0

Active
  The active property corresponds to the active state of an LED. If an LED is set to be active, no other tasks will be able to write to it. If you're not seeing appropriate responses to your messages to the LED, check the whether it's locked by sending a message like

      /appled/0/active

  You can set the active flag by sending

      /appled/0/active 1