Anthias Portable | Screenly
Going Mobile: How to Build a Screenly Anthias Portable Digital Signage Kit
Digital signage usually makes you think of big, wired installations in malls or office lobbies. But what if you need a display for a pop-up shop, a trade show booth, a wedding slideshow, or a construction site safety board?
Enter the Screenly Anthias Portable—a self-contained, WiFi-enabled digital signage solution that fits in a backpack.
In this guide, I’ll show you how to turn a Raspberry Pi, a small monitor, and a power bank into a rugged, portable signage player using the open-source Screenly Anthias software.
Step 3: Power Management Scripts
To avoid corruption when the battery dies, create a low-voltage shutdown script. screenly anthias portable
- Use a GPIO pin connected to a voltage divider on the battery output.
- When voltage drops below 11V (for a 12V system), trigger a
sudo shutdown nowto protect the SD card.
Screenly Anthias for Portable Digital Signage: Architecture, Deployment, and Use Cases
Abstract
Digital signage has traditionally relied on fixed infrastructure, limiting its application in dynamic, temporary, or mobile environments. This paper examines Screenly Anthias, an open-source digital signage platform, and evaluates its viability for portable deployments. We propose a lightweight architecture leveraging Raspberry Pi hardware, battery power, and Wi-Fi tethering to enable fully portable digital signage. The study includes a technical deployment guide, power consumption analysis, and practical use cases such as event signage, emergency information systems, and mobile retail displays. Results indicate that Screenly Anthias, with minor configuration adjustments, can operate reliably in portable mode for 6–10 hours on standard battery packs, offering a cost-effective and flexible alternative to proprietary solutions.
Keywords: Digital signage, Screenly Anthias, portable display, Raspberry Pi, open-source, edge computing
Upgrade Ideas for Power Users
- Add a UPS hat – For safe shutdown when the power bank dies.
- Use a 4G modem – Remote control your portable signs anywhere.
- Deploy multiple units – Sync playlists across 5+ Pis using Anthias’s API.
8. Conclusion
Screenly Anthias, originally designed for fixed digital signage, can be effectively repurposed for portable deployments with modest hardware and software adjustments. Our prototypes demonstrate runtime from 7–10 hours, offline operation, and rapid setup. The open-source nature allows customization not possible with commercial alternatives. For events, fieldwork, and mobile retail, Anthias on Raspberry Pi offers a practical, low-cost portable signage solution. Going Mobile: How to Build a Screenly Anthias
5. Mobile Classrooms & Training
If you teach CPR or corporate training off a rolling cart, you need a display that shows instructions without relying on the school's filtered (and often blocked) network.
Part 2: Defining "Portable" in Digital Signage
What does "Portable" actually mean for Screenly Anthias?
It is not an official product variant (there is no "Anthias Portable Edition" download). Instead, "Screenly Anthias Portable" refers to a custom hardware configuration that allows you to run your digital signage without relying on external power outlets, hotel Wi-Fi, or permanent mounts. Use a GPIO pin connected to a voltage
A true portable setup must achieve three things:
- Power Independence: Run for 6–12 hours without a wall plug.
- Network Independence: Operate offline or via a self-healing local hotspot.
- Physical Durability: Be packable into a flight case or backpack.
3. Film & TV Production
Production assistants often need "digital slates," call sheets, or set rules displayed on monitors around the craft services table. Running Ethernet cables on a backlot is a safety hazard. Screenly Anthias Portable solves this.
7. Limitations and Future Work
- Content updates still require manual intervention in full offline mode. A lightweight sync over Bluetooth or LoRa could improve.
- Video decode on Pi Zero limits portable use to images and web pages.
- Screen brightness vs. battery trade-off – sunlight-readable displays double power draw.
- No native battery management in Anthias; we added a Python script to read power gauge and gracefully shutdown at 10%.
Future work could integrate MQTT for low-bandwidth asset commands or develop an Android companion app for tethering-based sync.