SDK
Connecting Your System to EZ Sign
EZ Sign NFC Model (SDK)
Easily integrate EZ Sign with your existing software or build new solutions powered by EZ Sign displays.
Seamlessly integrate EZ Sign into production lines, inventory management systems, ID cards, visitor badges, and more.
Questions & Inquiries About SDK Integration and Products
Have questions about SDK specifications, system integration, deployment, or our products? Feel free to contact us using the inquiry form below.
Inquiry Form Below ↓💡 Purchase & Inquiries
Whether you'd like to try an EZ Sign unit first or discuss the technical details of SDK integration, feel free to contact us anytime. You can request detailed SDK specifications and pricing using the inquiry form at the bottom of the page.
4 Key Features of EZ Sign NFC
EZ Sign is an ultra-slim, battery-free e-paper display that eliminates the need for complex wiring or extensive IT infrastructure. EZ Sign offers a simple, cost-effective way to replace traditional paper signs and digital displays while supporting your digital transformation (DX).
⚡ No Internal Battery or Power Cables Required
No internal battery or power cables required. EZ Sign uses power harvested through NFC only during screen updates and retains the displayed content indefinitely without consuming power afterward.
🌐 No Network or Wi-Fi Connection Required
No routers, Wi-Fi networks, or complex network infrastructure required. With simple cable-free installation, EZ Sign can be deployed almost anywhere.
🛡️ Reduces Display & Human Errors
Reduce display errors and human errors by automatically delivering accurate information directly from your system data.
🚀 Small-Scale DX Starting From a Single Unit
No large upfront investment required. Start with a single unit, evaluate its performance in a real-world environment, and gradually expand across your organization.
System Integration & Architecture Flow
The diagram below shows the overall workflow, from generating image data in your existing business software or applications to transferring it to EZ Sign via standard OS SDKs and NFC.
Use Cases by System & Application Environment
From automated SDK integration for complex business workflows to manual, non-SDK operations, EZ Sign adapts to a wide range of business needs.
Production Line & Work Order Management SDK Recommended
Transfer real-time production status and digital work order images directly from your manufacturing management system to EZ Sign. Support paperless operations and reduce errors on the assembly line.
Quality Control & Inspection Status SDK Recommended
Generate image data for inspection results, pass/fail status, and lot numbers directly from your database or quality management system. Seamlessly display this information on EZ Sign to improve traceability and support paperless operations on the factory floor.
Logistics & Warehouse Stock Management SDK Recommended
Connect EZ Sign to Warehouse Management Systems (WMS) or inventory platforms to display real-time stock levels and product information that remain visible without consuming power.
Welcome Signs & Low-Frequency Display Updates Free App Available
For applications that do not require frequent updates—such as reception signs or meeting room doorplates—use our companion apps. Update displays instantly from your phone or PC—no coding, batteries, or power cords required.
Free App Download & EZ Sign Performance Testing
Test display updates and visual quality right away by starting with a single EZ Sign display. Download our free official apps to test manual display updates in your environment before moving forward with SDK integration.
Windows Edition
A desktop app for testing e-paper display updates from your PC using an external NFC reader/writer (Sony RC-S300 recommended).
iOS Edition
Official mobile app for quickly transferring images to EZ Sign from your iPhone using built-in NFC.
Android Edition
Official mobile app for quickly updating EZ Sign displays using NFC on Android smartphones and compatible devices.
EZ Sign NFC Product Specifications
Product Specs — 4-Color Display Model
| Item | 2.13 Inch | 2.9 Inch | 4.2 Inch |
|---|---|---|---|
| Screen Size | 52.0 x 25.4 (mm) | 66.9 x 29.06 (mm) | 84.8 x 63.6 (mm) |
| Dimensions | 62 x 31.14 x 3.4 (mm) | 82.2 x 39 x 3.4 (mm) | 93.4 x 80.3 x 3.4 (mm) |
| Resolution | 250 x 122 px (~122 PPI) | 296 x 128 px (~112 PPI) | 400 x 300 px (~112 PPI) |
| Weight | Approx. 8g | Approx. 13g | Approx. 29g |
| Colors | Black, White, Red, Yellow | Black, White, Red, Yellow | Black, White, Red, Yellow |
| Casing Colors | Black, White, Silver, Gold *Gold available for 2.13" & 2.9" only |
Black, White, Silver, Gold | Black, White, Silver |
| Update Time | Approx. 30 seconds (Standard across 4-Color models) | ||
| 1-Pack Included Accessories | Main Unit × 1, Stand × 1, Clip × 1 | ||
| 6-Pack Set Content | Main Unit × 6 (Accessories not included) | ||
* Gold casing option is exclusive to 2.13-inch and 2.9-inch models.
Product Specs — 2-Color Model
| Item | 2.13 Inch | 2.9 Inch | 4.2 Inch |
|---|---|---|---|
| Screen Size | 52.0 x 25.4 (mm) | 66.9 x 29.06 (mm) | 84.8 x 63.6 (mm) |
| Dimensions | 62 x 31.14 x 3.4 (mm) | 82.2 x 39 x 3.4 (mm) | 93.4 x 80.3 x 3.4 (mm) |
| Resolution | 250 x 122 px (~122 PPI) | 296 x 128 px (~112 PPI) | 400 x 300 px (~112 PPI) |
| Weight | Approx. 8g | Approx. 13g | Approx. 29g |
| Colors | Black, White (2 Colors) | ||
| Casing Colors | Black, White | Black, White | Black, White |
| Update Time | Approx. 3 seconds (Standard across 2-Color models) | ||
| 1-Pack Included Accessories | Main Unit × 1, Stand × 1, Clip × 1 | ||
| 6-Pack Set Content | Main Unit × 6 (Accessories not included) | ||
【General Specifications & Operating Requirements】
| Item | Specifications / Requirements |
|---|---|
| Communication Mode | NFC (Near Field Communication). Refreshed via smartphones or NFC readers/writers |
| Internal Battery | None (Completely battery-free; powered via NFC electromagnetic induction) |
| Display Retention | Retains visual static image indefinitely without drawing electrical power |
| Ingress Protection | IP65 Equivalent |
| Operating Temperature | 0 to 40°C |
| Storage Temperature | -25 to 50°C |
| Supported SDK Environment | Please contact us for technical specifics. |
| iPhone Compatibility | iOS 13 or later (NFC-equipped models) * Please remove phone protective cases before updating. |
| Android Compatibility | NFC-equipped models * NFC antenna location varies depending on manufacturer and model. |
| Windows Compatibility | Windows 10 or later * Updating requires an external USB NFC reader/writer (sold separately). (Recommended: Sony RC-S300) |