Multicast vs JellyFloat

This is a professional split-screen casting app that allows you to cast multiple photos or videos to your TV simultaneously, displaying them in side-by-side or grid layouts for a richer visual experience. Whether for teaching presentations, team collaboration, showroom displays, or home entertainment, it easily meets multi-content viewing needs. FEATURES Split-Screen Casting - Cast multiple photos or videos to your TV at the same time, with automatic side-by-side or grid layout rendering. Multiple Modes - Supports one-to-one casting, one-to-many casting, and other modes to adapt to different usage scenarios. No Delay - Uses an optimized, stable transmission scheme to ensure smooth and synchronized playback. Compatibility - Supports AirPlay and DLNA casting protocols, enabling connection with most smart TVs on the market. Support - Thoroughly tested and optimized for many mainstream TV brands and models. USE CASES Education & Training - Teachers can cast multiple photos, videos, and materials side by side for comparison and interactive teaching. Meetings & Collaboration - Allows multiple presenters to cast their content simultaneously, enabling clearer discussion and improved communication efficiency. Showroom & Retail Displays - Perfect for exhibitions and retail spaces to present ads, product demos, and social content in parallel, increasing information density. Home Entertainment - Can be used as a “TV photo wall,” displaying multiple photos or videos at once—ideal for family gatherings or showcasing travel albums in a lively, engaging way. TIPS FOR USE - Make sure your phone and TV are connected to the same Wi-Fi network. - For a more stable casting experience, consider disabling VPN or proxy services. COMPATIBILITY We have conducted extensive testing on many popular TV devices and continue to optimize compatibility across more models. Due to differences in TV brands, systems, and firmware, casting experiences may vary. If you encounter any issues, feel free to contact us—we are committed to continuous improvement.

JellyFloat is the remote control for a bloom of LED jellyfish: hand-built lamps on a Raspberry Pi Pico 2 W that run the open-source JellyFloatOS firmware. The jellies find each other over their own Wi-Fi network and stay in step; the app joins that network and puts the whole bloom on your screen. WHAT YOU CAN DO • Pick one of twenty modes, from slow, dim moods (Breathe, Glimmer, Aurora, Lantern, Moonlight, Fireflies) to sound-reactive ones that follow the room, colour palettes that give every jelly its own colour, and a playlist that wanders through the calm modes. • Set brightness, shift the colours, and choose how fast the palette rotates. Every jelly follows at once. • See who is in the bloom: each jelly with its colour, address and firmware version, and a note when an older jelly lacks a mode. • Identify: the jelly that runs the network blinks red, all others blue, so you know which is which. • The phone joins as a jelly of its own: a virtual jellyfish on screen runs the same effects on the shared clock. NO HARDWARE YET? Switch on the demo bloom in Settings or from the first screen. It runs a pretend network of jellies inside the app, so you can try everything. HOW IT WORKS The app asks iOS to switch to the jellyfish Wi-Fi (the system asks you first) and then talks to the jellies with plain text lines over UDP. Nothing leaves your local network. There is no account, no cloud and no tracking; the app never connects to the internet. BUILD YOUR OWN Firmware, circuit board, 3D files and this app are open source at github.com/MacBachi/Jellyfish. The jellyfish design comes from the Sheffield-by-the-Sea crew's project for Electromagnetic Field.