---
title: "OpenDisplay"
description: "OpenDisplay is a built-in integration for Home Assistant. It has 89 installs sharing analytics and works locally."
canonical: "https://vulpo.app/integrations/core/opendisplay"
url: "https://vulpo.app/integrations/core/opendisplay.md"
last-updated: "2026-10-22"
version: "1.4"
---

# OpenDisplay

> OpenDisplay is a built-in integration for Home Assistant. It has 89 installs sharing analytics and works locally.

OpenDisplay is a built-in integration that connects Bluetooth OpenDisplay devices to Home Assistant and works locally. It provides binary sensors, event entities and sensors, including a battery voltage reading. An upload image action sends an image to an OpenDisplay device. Devices that use encryption need their AES-128 key, entered as a 32-character hexadecimal string, and the same key is requested again if re-authentication is required. Home Assistant can discover the device by itself and offer to add it, and setup is done in the UI. A diagnostics file can be downloaded to attach to a bug report.

Automatic summary of Home Assistant's source code. Something wrong? [Get in touch](https://vulpo.app/contact)

[Open in My Home Assistant](https://my.home-assistant.io/redirect/config_flow_start/?domain=opendisplay)

## Supports

- **Works locally**: Talks to your devices on your own network. No vendor cloud in between.
- **Set up in the UI**: Add it in Settings, Devices and services. Nothing to download.
- **Found by itself**: Home Assistant spots it on the network and offers to add it.
- **Silver quality**: Home Assistant's own rating of its code and setup experience.
- **Updated with Home Assistant**: Ships and updates with every Home Assistant release.

## Setting it up

Home Assistant usually finds it on the network and offers to add it. It can also be added by hand under Settings, Devices and services.

### Connect

- **Device**: Select the Bluetooth device to set up.

### Encryption required

- **Encryption key**: Enter the 32-character hexadecimal AES-128 encryption key for this device.

Also asked when signing in again.

Texts from Home Assistant's source code, [Apache License 2.0](https://www.apache.org/licenses/LICENSE-2.0).

## Entities

- **Sensors**: Battery voltage

## Actions

- **Upload image**: Uploads an image to an OpenDisplay device.
  Fields: Device, Dither mode, Fit mode, Image, Refresh mode, Rotation, Tone compression

## Troubleshooting

- **Diagnostics**: Downloads a diagnostics file to attach to a bug report.

## At a glance

- Kind: Built-in integration
- Number: 89 installs sharing analytics
- Connection: Works locally
- Upkeep: Part of Home Assistant
- Needs: Built into Home Assistant
- Quality scale: Silver quality scale
- Domain: `opendisplay`
- Source: <https://www.home-assistant.io/integrations/opendisplay/>

In Vulpo: Chart card, Apple Watch

Independent directory, made by the developer of Vulpo. Not affiliated with Home Assistant or the Open Home Foundation. [About these numbers](https://vulpo.app/integrations/about)

Last updated 2026-10-22. Source: https://vulpo.app/integrations/core/opendisplay

---

- HTML version of this page: https://vulpo.app/integrations/core/opendisplay
- Site index for agents: https://vulpo.app/llms.txt
- Everything in one document: https://vulpo.app/llms-full.txt
- All pages: https://vulpo.app/sitemap.xml