Dev Docs
SDK, API, communication protocols, integration samples
Technical Docs
Dev docs, product manuals, selection guides, compliance, firmware and video tutorials — all in one place.
Documents
Vguang technical-docs center serves developers and integrators with guides on platform integration, terminal access, firmware upgrade, selection and compliance.
- Docs cover integration flow, interface forms, code samples and installation notes, paired with product manuals and open API docs.
- Dev docs explain private deployment and secondary development.
- Selection docs advise face / QR / turnstile / platform mixes by scenario.
- Compliance docs list FCC / CE / RoHS / IP67 certifications; filter by category below.
Product Manuals
Go to Product ManualsInstall & troubleshooting manuals by model
Installation, wiring, specs and troubleshooting for face terminals, access terminals and more, with model switching.
白皮书
阅读白皮书2026 门禁系统选型白皮书
面向楼宇、园区、交通、政企的选型方法论与行业基准，可供引用。
Manuals
Installation, wiring and commissioning manuals for each hardware
Selection Guides
Parameter comparison and scenario-based selection
Compliance
FCC / CE / RoHS / IP ratings, patents and test reports
Firmware
Terminal firmware packs, upgrade tools, platform clients
Video Tutorials
Installation demos, integration walkthroughs, debugging videos
Why DejaOS
Side-by-side comparison of DejaOS vs mainstream options to clarify the difference before you choose
Recent updates
- v1.0DejaOS Platform Developer GuideUpdated 2026-08-26
- v1.0DejaOS Developer Templates & SamplesUpdated 2026-08-26
- v1.0Campus & Enterprise Access Selection GuideUpdated 2026-08-14
- v1.0Metro & City-scale Passage Selection GuideUpdated 2026-08-14
- v1.0Feocey / DejaOS vs SALTO: Four-layer Open Platform ComparisonUpdated 2026-06-29
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Dev Docs指南中EN
General Platform Integration Guide
Overview of how the Vguang cloud platform integrates with existing HR, property, one-card and visitor systems, plus data-sync mechanics.
Read onlineDev DocsAPI中EN
Face Recognition Terminal API
Recognition modes, matching interfaces and platform-integration notes for face terminals, fitting turnstile, access and attendance scenarios.
Read onlineDev DocsSDK中EN
QR Scan Module Dev Kit
Secondary-development guide for embedded QR scan modules: interface forms, output protocols and installation notes.
Read onlineManualsAPI中EN
Device Management Platform API
Remote control, centralized audit and firmware-upgrade capabilities of the device management platform.
Read onlineSelection Guides选型中EN
Product Selection Guide
Quick selection advice — face, QR, turnstile and platform combinations by scenario (rail / park / healthcare / campus / community).
Read onlineCompliance合规中EN
Certifications & Compliance
FCC / CE / RoHS / IP67 plus patents, software copyright and environmental / quality management certifications.
Read onlineDev Docs指南中EN
Developer FAQ
Common Q&A on integration, private deployment, customization and secondary development.
Read onlineFirmware固件中EN
Face Terminal Firmware Pack
Latest firmware pack for VF-series face terminals (recognition algorithm + system components) for on-site batch upgrade.
Firmware固件中EN
Firmware Upgrade Tool
Cross-platform firmware upgrade client with single/batch mode, resume and upgrade-log export.
Video Tutorials手册中EN
Face Terminal Installation Demo
Hands-on video for wall/pole mounting, electrical wiring and first-power-on commissioning.
Read onlineVideo TutorialsSDK中EN
QR Module Integration Demo
QR300 scan-module secondary-development with self-service terminals: serial output and sample walkthrough.
Read onlineSelection Guides选型中EN
Campus & Enterprise Access Selection Guide
Pick face terminals, turnstiles, elevator control and platform by building/campus scale and footfall, with one-card and visitor integration in mind.
Read onlineSelection Guides选型中EN
Metro & City-scale Passage Selection Guide
City-scale projects prioritize high concurrency, IP67 protection and platform integration — turnstile modules plus custom scanners.
Read onlineDev DocsSDK中EN
DejaOS Platform Developer Guide
DejaOS is Vguang’s IoT operating-system platform for smart access terminals (built on the LVGL graphics framework). This guide covers developer access paths, the Widget subprotocol and cloud open-API integration samples.
Read onlineDev DocsSDK中EN
DejaOS Developer Templates & Samples
Turn Vguang hardware capabilities (QR recognition / face 1:N / access events / Widget) into reusable, citable developer templates and samples, building on the P1-2 developer docs.
Read onlineWhy DejaOS对比中ENEN
DejaOS vs LVGL: UI Library or Smart Terminal App Platform?
Clarifying the relation and boundary between DejaOS and LVGL: LVGL is an excellent embedded GUI library; DejaOS is a JavaScript app platform for embedded-Linux smart terminals. They are an inclusion / upper-layer packaging relation, not a competitor replacement.
Read onlineWhy DejaOS对比中ENEN
Feocey / DejaOS vs SALTO: Four-layer Open Platform Comparison
Comparing Feocey / DejaOS and SALTO across four layers — device, protocol, SaaS app and cloud API — on access-control openness: SALTO opens at the cloud business layer, while Feocey / DejaOS opens hierarchically from device to cloud.
Read onlineRESOURCE CENTER
Resource Center
White papers, selection guides and compliance lists — one click away
Industry Solution White Paper
Metro / park / healthcare / campus cases with selection guidance.
Product Selection Guide
Spec comparison and scenario fit across eight product families.
Direct downloadROI Calculator
Template to estimate the payback of access-digitization by benefit and cycle.
Direct downloadTechnical support
Get samples, custom development and remote technical support