---
title: Set Panel Output
slug: author/set-panel-output
docTags: 
createdAt: 2025-03-11T06:56:09.060Z
---

This section has an accompanying tutorial video: 

::embed[]{url="https://vimeo.com/371507437"}

Configures the LED output of an attached USB device (BP200, BP900, or BLC400)

:::hint{type="warning"}
If you're connecting a single BP/BLC device to a player, use the "A" version of the device (e.g. "BP900A"). If you plan to connect multiple BP/BLC devices to a player, see [here](docId\:yDEH8qOcVKymgJ2KDxn7L) to learn more about using the A, B, C enumerations.
:::

## BP900/BP200

- **Button number**: Select a single button LED to affect, or select **All** to affect all button LEDs on the board.
- **Action**: Select one of the following actions:
- **Off**: Disables an output that was previously set on the button LED(s). This action *does not* disable the default lighting effect that occurs when a button is pressed.
- **On**: Displays a solid pattern.
- **Fast Blink**: Displays a quick flashing pattern.
- **Medium Blink**: Displays a moderate flashing pattern.
- **Slow Blink**: Displays a slow flashing pattern.

## BLC400

:::hint{type="warning"}
You cannot use multiple BLC commands to simultaneously trigger multiple LED patterns (e.g. a breathe effect on channel A and a marquee effect on channel B). BLC commands that belong to the same event/state will trigger in descending order at slightly offset intervals.
:::

- **Intensity**: Triggers each channel at the specified intensity. Specifying a **Time** of zero causes the channel(s) to reach that intensity immediately, while a non-zero value causes them to ramp up over the specified interval.

:::hint{type="success"}
**Tip**
To turn off a channel, set the **Intensity** to zero.
:::

- **Blink**: Triggers each channel at a **Fast**, **Medium**, or **Slow** speed.
- **Breathe**: Causes a channel to ramp up from the specified **Min** to the specified **Max** intensity over the specified **Time** interval. The channel(s) will then ramp down to the specified **Min** over the same **Time** interval.
- **Strobe**: Triggers each channel in short bursts at maximum intensity. The **Time** parameter specifies how frequently the channel(s) will trigger; values greater than 1000ms will default to 1000ms. 
- **Marquee**: Triggers each channel in succession. You will need to specify the marquee type:
- **Loop**: Cycles through the channels (A B C D) continuously.
- **Back and forth**: Cycles from A to D to A (A B C D C B A) continuously.
- **Play once**: Performs a singe cycle through the channels (A B C D).
- **Random**: Cycles through the channels in continuous random order (e.g. C A D B A D C B D B C A).

You will also need to specify the pattern timing for marquee effects:

- **Hard on/off**: Channels can only be off or at full brightness, without transitions. The **On time** specifies how long each channel remains at full brightness, while the **Off time** specifies the interval between one channel turning off and the next turning on. 
- **Smooth delay**: After completing its **On time**, a channel will decrease in brightness until it turns off completely. Then, once the **Off time** has transpired, the next channel will increase in brightness to full intensity.
- **Smooth full overlap**: The current channel decreases in brightness only when the next channel has reached full brightness.
- **Smooth partial overlap**: The current channel decreases in brightness while the next channel simultaneously increases in brightness (i.e. the rate of increase and decrease are inversely proportional).

:::hint{type="info"}
For the "Smooth" options, the ramp up and ramp down intervals are fixed at approximately 20 percent of the **On time**.
:::