Standalone Art-Net recorder and player for Raspberry Pi 4 and 5.
Try the interactive demo · Buy CUE/IO — €30 perpetual licence · Download the Raspberry Pi image
No subscription. Raspberry Pi and other hardware are sold separately.
Website · Documentation · Latviski
CUE/IO records Art-Net/DMX with optional synchronized audio, then runs the show without a lighting console. Playback can be controlled manually or triggered by incoming LTC, schedules, GPIO, playlists, or autoplay. The responsive control interface runs in a browser on the local network.
CUE/IO is commercial, proprietary software. The Raspberry Pi, microSD card, power supply, audio interface, and other hardware are not included.
The interactive demo uses simulated data and does not connect to a Raspberry Pi or send real Art-Net. It is the quickest way to explore the workflow before installing the product.
- records Art-Net with optional synchronized audio;
- plays recorded, imported, or manually created shows;
- listens for incoming LTC and starts shows from cue rules;
- runs shows from schedules, GPIO inputs, playlists, or autoplay;
- supports Art-Net Broadcast and Unicast output routing;
- provides a live 512-channel DMX monitor and an on-device benchmark;
- manages show import, export, backup, synchronized trimming, and audio replacement;
- works offline after the one-time online licence activation;
- provides English and Latvian interfaces for desktop and mobile browsers.
RECORD, TIMECODE, and PLAYER are exclusive operating modes: only one owns the real-time hardware resources at a time.
The official compressed Raspberry Pi image may be downloaded publicly from the latest GitHub Release. Every release should include the .img.xz file, a SHA-256 checksum, release notes, and image metadata.
- Download the image and its checksum from the same release.
- Verify the checksum.
- Write the
.img.xzfile to a microSD card with Raspberry Pi Imager. - Start the Pi, open
http://cueio.local/on the same local network, and complete setup. - Buy a licence and activate the device under Settings → License.
The image can be downloaded and written before purchase, but a paid CUE/IO activation is required to start RECORD, TIMECODE, or PLAYER. One licence activates one physical Raspberry Pi. Public availability of the image does not make the software open source.
See Installation and Licensing for the complete user-safe procedure.
| Area | Status |
|---|---|
| Raspberry Pi 4 / Raspberry Pi 5, 64-bit CUE/IO image | Supported |
| Art-Net recording and playback | Primary, supported protocol |
| LTC | Incoming/receive-only trigger source |
| sACN | Experimental raw UDP path; not full E1.31 support |
| Pi 3, Pi Zero, 32-bit systems | Not supported |
| Public internet exposure | Not supported |
CUE/IO's operator interface does not provide general multi-user authentication. Use it only on a trusted, isolated local control LAN or the device's configured fallback Wi-Fi. Never expose it with a public port-forward.
LTC support is receive-only: CUE/IO listens to an LTC audio signal through a compatible audio input. It does not generate or transmit LTC. sACN support remains experimental and must not be treated as a complete or safety-critical E1.31 implementation.
Read the detailed Compatibility, Hardware, and Reliability notes before deploying a show.
| Show files | Live DMX monitor |
|---|---|
 |
 |
Screenshots contain sample or simulated data. The live interface may evolve between releases.
- Installation and first start
- Hardware and connections
- Compatibility and protocol limits
- Licence and activation
- Troubleshooting
- Reliability and pre-show checks
- Changelog
- Support
- Security policy
The complete product guide is also available at cueio.app/docs and locally on an installed device at http://cueio.local/docs.
Use GitHub Issues for reproducible product bugs, documentation corrections, and feature suggestions that contain no private information. For activation, billing, account questions, or sensitive diagnostics, follow SUPPORT.md. Report security vulnerabilities privately as described in SECURITY.md.
This is a public product and documentation repository, not an open-source source-code repository. CUE/IO software, images, branding, screenshots, and documentation remain proprietary unless a file explicitly says otherwise. See LICENSE.md. Bundled open-source components retain their own licences; see THIRD_PARTY_NOTICES.md.
© 2026 CUE/IO. All rights reserved.