...RFID 标签识别、数据读取与会员账号绑定等核心逻辑，并保证高并发场景下的稳定性与容错 • 对接现有 RFID 模块，解决驱动、协议或功耗问题 • 与公司后端接口联调，保证设备与云端数据一致且实时 • 独立完成功能测试、缺陷定位和修复，并撰写接口说明、模块设计与使用指引 • 每周参加海外英文例会、评审会，英文汇报进度与风险，会后输出英文会议纪要 交付物 1. 可在指定跑步机硬件上运行的 Android APK（含 RFID 功能） 2. 对接文档、接口清单与使用手册（中英双语） 3. 测试报告及缺陷闭环记录 4. 会议纪要及风险跟踪表 协作方式 • 允许远程为主，有需要时可线下沟通 • 能适应晚间跨时区会议 • 主要挑战在语言障碍，需流利英文听说及书面沟通 如果你具备 3 年以上 Android 开发经验，并且真正动手做过 RFID / NFC / BLE 等硬件通信项目，欢迎一起完成这次健身设备升级。
1. 三个小程序的数据是关联的，设计数据库表，进行数据的封装(DTO,VO的封装),统一返回 结果的封装 2. 小程序之间的流程是一层层的，有审批的过程，需要工作流引擎 3. 框架的搭建以及技术的选型 4. 停车扫码缴费,门禁卡刷卡--NFC,扫脸门禁,摄像头 5. 必要的依赖以及工具类，异常类等 6.无条件配合雇主的开发人员使用这个架构和对应的表支撑的什么业务 道伽企服----小程序UI原型 %EF%BC%88%E7%89%A9%E4%B8%9A%EF%BC%89%E4%B8%AD%E8%92%82%E5%9B%AD%E5%8C%BA%E7%AE%A1%E7%90%86%E5%B0%8F%E7%A8%8B%E5%BA%8F?node-id=486-16965&t=rd7rCkmaPRVTutyl-1&scaling=scale-down&content-scaling=fixed&page-id=22%3A1090&starting-point-node-id=486%3A16965 园企助手----小程序UI原型 %EF%BC%88%E7%89%A9%E4%B8%9A%EF%BC%89%E4%B8%AD%E8%92%82%E5%9B%AD%E5%8C%BA%E7%AE%A1%E7%90%86%E5%B0%8F%E7%A8%8B%E5%BA%8F?node-id=486-16965&t=rd7rCkmaPRVTutyl-1&scaling=scale-down&content-scaling=fixed&page-id=22%3A1090+&starting
我有一个wordpress网站，需要配套一个使用xamarin开发的的程序，用来生成安卓及IOS的app。
I’m looking for an experienced embedded systems / hardware engineer to take over an existing ESP32-based NFC audio player project . ⚠️ Important clarification The physical PCBs are not currently available. I am looking for an embedded systems developer to review and complete an existing ESP32 NFC audio player project. The project already includes: • PCB design files (Gerber, BOM, Pick&Place, STEP) • Partial firmware for ESP32 • NFC reader and microSD audio architecture IMPORTANT This project is strictly limited to design audit and firmware work only. No PCB manufacturing, hardware assembly, or physical prototype is required. Project Scope Phase 1 – PCB & Firmware Audit • Review existing PCB design files • Review curren...
I need a digital service tested specifically for Japanese users. You must have Japanese documents. 1. Create an account on the web app. 2. You need to test service according to the test plan. Test environment requirements: 1. Hardware & Devices Mobile Devices (Must support FeliCa / NFC-F) iOS Device: Model: iPhone 12 or later (JP-market model). OS: Latest iOS version (e.g., iOS 17/18/ or later). Region Setting: Japan (Settings > General > Language & Region). 2. Connectivity & SIM Cards SIM Card: Active Japanese SIM card (DoCoMo, au, SoftBank, or MVNO like Rakuten/IIJmio). Reason: Some wallet provisioning flows (Apple Pay) and App Store downloads may require a local carrier network check or SMS OTP.
...experienced Flutter developer to own the mobile side. The overall system will eventually include passenger, driver and conductor apps that talk to my existing REST API backend, but the very first milestone is the passenger experience. Passenger app – priority scope The passenger build must ship with: • Real-time bus tracking displayed on Mapbox maps • A smooth digital ticketing flow (QR / NFC hooks already in the API) • Trip planning that pulls live route and schedule data Mapbox is the mapping SDK of choice, so solid experience with its Flutter plugin is essential. You’ll wire up push notifications for bus arrival alerts, cache data aggressively for low-bandwidth corridors, and squeeze every frame you can out of the map view. After the pas...
PROJECT SUMMARY: I need an experienced RF/NFC hardware engineer to design a compact, modular 4×4 NFC sensor array board. The board will be used to detect and identify NFC-tagged objects placed on a flat surface (e.g., industrial tray, logistics sorting grid, or interactive tabletop application). Multiple boards (up to 6) will be tiled together to cover larger surfaces. Each board must detect and report the UID of ISO 14443 and ISO 15693 NFC tags placed on any of its 16 positions, within 500ms scan time for the full array. This is not a greenfield project. I have an existing but non-functional 6-layer PCB design (EasyEDA source files available) that attempted this with an ST25R3916B, STM32L476, analog multiplexers, P-MOSFETs, and PIN diodes simultaneousl...
...need thorough testing of a digital card payment setup specifically for Japanese users. 1. Create an account on the web app. 2. Issue the crypto card. 3. Test funds will be provided. 4. You need to test card payments according to the test plan. 5. Purchased goods and the balance on the card remains yours. Test environment requirements: 1. Hardware & Devices Mobile Devices (Must support FeliCa / NFC-F) iOS Device: Model: iPhone 12 or later (JP-market model). OS: Latest iOS version (e.g., iOS 17/18/ or later). Region Setting: Japan (Settings > General > Language & Region). 2. Connectivity & SIM Cards SIM Card: Active Japanese SIM card (DoCoMo, au, SoftBank, or MVNO like Rakuten/IIJmio). Reason: Some wallet provisioning flows (Apple Pay) and App Store downloads m...
I need a self-contained proof of concept that shows, step by step, how to use the NXP TapLinx iOS SDK together with Core NFC to create an encrypted application on a MIFARE DESFire EV2 tag, protect it with DES keys, and store a small block of plain text inside that new application. Scope of the PoC • The app must run on devices with iOS 14 or later. • When the tag is presented, the code should create an application on the EV2 card, apply DES encryption, and then write user-editable text data to a file within that application. • After writing, the app should immediately read the data back so that I can see proof the operation succeeded and the encryption keys were respected. Tooling & approach TapLinx (latest iOS release), Xcode, Swift or Objective-C&mdash...
Necesito una web en la que cada tarjeta NFC abra una ruta dinámica del tipo /t/{id}. Ese identificador se almacenará en una base de datos y representará un álbum de fotos con un máximo de 20 imágenes. No quiero generar páginas manualmente: todo el sistema debe funcionar de forma dinámica y escalable. Al escanear la tarjeta, cualquier persona debe poder acceder a la galería pública del álbum, que se mostrará en un grid limpio y visual. Al pulsar sobre una imagen, esta debe abrirse en un carrusel a pantalla ampliada. Las fotos de cada álbum deben mostrarse ordenadas por fecha. Debe existir una zona privada protegida por contraseña desde la que se pueda subir y borrar fotos directamente ...
...the capture logic; no UI redesign is needed unless a minor tweak supports the new behaviour). • NFC Reading module – adjust the read/process flow so our proprietary tags are detected and parsed consistently across devices. The code must remain stable, compile against the current stable SDK, and install cleanly on Android 8 through 14. Once the changes are in place, I need: 1. Updated source code with clear comments highlighting every modification. 2. A debug-signed APK so the operations team can run regression tests. 3. A short change log outlining the classes touched and the rationale behind each change. Experience working directly with Camera2, Jetpack libraries, and the Android NFC API will help you move quickly; familiarity with Kotlin is a bonus (t...
...exclusively around new feature development—no legacy maintenance—so you’ll get to shape architecture decisions, choose modern patterns, and drive best practices. We’re a fully remote company; you’ll collaborate daily with product managers, UX designers, and back-end engineers through Azure DevOps, Git, and Teams. A typical sprint involves designing RESTful APIs in ASP.NET Core, integrating them into a Xamarin or .NET MAUI front end, writing unit tests, and pushing clean, well-documented code through our CI/CD pipeline. To thrive here you should be fluent in C#, comfortable with SOLID principles, and confident optimizing performance for mobile workloads. Experience with cloud services (Azure Functions, App Service, SQL Database) is a strong plus bec...
...screens I need are: a clean landing page that lists every department and service we offer, a searchable doctor roster that shows availability status in real time, and a simple contact section with call-to-action buttons for phone, email and maps. Push notifications for sudden schedule changes would be a plus if it fits the same build. You are free to choose the stack—Flutter, React Native, Xamarin or another cross-platform framework—so long as the final binaries run smoothly on the three target stores. All design assets, icons and the hospital’s API documentation for services and schedules will be supplied as soon as we start. Deliverables • Source code and project files • One signed build for Google Play, one for the App Store, and a Windows...
I need two distinct, brand-ready logos delivered together. TapTap () This brand sells premium NFC digital business cards that replace traditional paper cards. The logo must feel modern and sleek—think polished finishes that look at home on metal or matte card stock. Please work the official NFC symbol tastefully into the mark and feel free to incorporate the “.cards” extension if it enhances the composition. The design should translate well to a card sleeve, a rigid presentation box and small screen icons, so scalability is important. iReview () Our second brand provides Google review cards that make it easier for businesses to collect feedback. The logo has to spotlight the Google reviews aspect (iconography, color cues or smart negative space) while ...
...exclusively around new feature development—no legacy maintenance—so you’ll get to shape architecture decisions, choose modern patterns, and drive best practices. We’re a fully remote company; you’ll collaborate daily with product managers, UX designers, and back-end engineers through Azure DevOps, Git, and Teams. A typical sprint involves designing RESTful APIs in ASP.NET Core, integrating them into a Xamarin or .NET MAUI front end, writing unit tests, and pushing clean, well-documented code through our CI/CD pipeline. To thrive here you should be fluent in C#, comfortable with SOLID principles, and confident optimizing performance for mobile workloads. Experience with cloud services (Azure Functions, App Service, SQL Database) is a strong plus bec...
...retícula/espaciados). Reglas de aplicación: fondos, contraste, “do/don’t”. Ejemplos mínimos: fachada + cristales + 2 aplicaciones simples. C) Fachada (lo crítico) Propuesta de fachada con mockups sobre fotos reales: Rótulo principal “” Jerarquía de textos secundarios (máx. 2 líneas) Tratamiento de cristales: privacidad + marca (frosted + degradado sutil si aplica) Integración QR/NFC “pedir cita” discreta (sin look de cartel) Artes finales listos para producción/rotulista: AI/SVG/PDF vector + medidas. Recomendación de materiales mate. Ideal: 2 alternativas (low-cost vs mid) para ajustar presupuesto. Referencias e inspiración (links) Baltic Derm...
...engine specifics, equipment lists, and any custom fields I choose to add. • Deep customization inside every boat profile including: – Customizable fields – Multiple photo uploads – Owner notes and memos • Maintenance log with receipt uploads, engine-hour tracking, service reminders, and visibility toggles so owners decide which data is public. • Each vessel generates a unique QR/NFC code that links to its online log; scanning at the helm instantly surfaces its records. • Clean, modern “marine blue” UI that stays lightweight and responsive across mobile, tablet, and desktop. • Cloud architecture (your choice of AWS, GCP, or Azure) designed for easy scaling and data durability. Acceptance criteria 1. New ...
...existing backend (auth, database, storage, real-time subscriptions) Screens & Features to Build: - Splash / Onboarding screens - Login & Registration (connecting to existing Supabase Auth) - Home / Dashboard screen - Stamp card and Points Card (flip animations, stamp grid,points card and reward merchant branding) - Merchant discovery / nearby stores - User profile & settings - NFC tap interaction flow - Push notifications (One signal) - Any additional screens as defined in the Figma file What We Expect: 1. Pixel-perfect implementation — match the Figma designs exactly (spacing, fonts, colors, border radii, shadows, every detail) 2. Clean, well-structured TypeScript code 3. Smooth, polished animations using Reanimated 4. Respon...
...Diameter: 40.85 mm • Target Weight (with SS disc + NFC): 36–38 g 2. Architecture Two-piece clamshell architecture: • Front Shell (Cup Geometry) • Back Insert Shell • Internal Stainless Steel Disc (304 SS, 3.0 mm thick) • 25.4 mm recessed NFC (front-mounted) 3. Internal Stainless Steel Disc • Diameter: 40.85 mm • Thickness: 3.00 mm • Tolerance: ±0.05 mm • Edge break: 0.2 mm chamfer 4. Shell Wall Thickness • Nominal Resin Wall Thickness: 1.0–1.2 mm • Minimum allowed: 0.9 mm • Z-step bonding seat required for shear strength • Glue gutters: 0.6 mm wide x 0.3 mm deep 5. Alignment & Anti-Rotation • Primary Key: Triangular pin @ 0° axis • Secondary Pins: 2 round pins @ 120&de...
...privacy-focused communication system where users can share a QR or NFC tag that enables others to contact them without exposing personal phone numbers. The app is mainly used for situations like parked vehicles, door contact, public tags, etc., where someone needs to reach a person without seeing their actual number. Key Functional Requirements 1. User Mobile App (Android & iOS) User Account & Setup Register and login using phone number + OTP Create a personal profile Link a QR code / NFC tag to the user account Tag Management Generate virtual tag (can be printed or displayed digitally) Support both QR codes and NFC tag reading Ability to enable/disable tag anytime in the app 2. Privacy-First Contact Flow When Person A scans the QR / taps the NFC ...
...Dashboard de ID com níveis e pontos, exibido após um redirecionamento automático disparado por tag NFC • Integração direta com Shopify, de forma que o status do membro e seus pontos possam influenciar compras, descontos ou upgrades Requisitos técnicos essenciais – Desenvolver em Webflow aliado ao Firebase Authentication / Firestore – Garantir que as páginas privadas estejam protegidas e carreguem rápido em dispositivos móveis – Configurar o gatilho de leitura NFC para abrir a URL do dashboard correto, mantendo a sessão do usuário ativa – Documentar a configuração para que eu possa escalar novos níveis ou recompensas sem tocar no có...
I have an existing Xamarin Forms application that already runs smoothly on iOS and Android. I now need the full codebase moved over to .NET MAUI so I can keep pace with the latest tooling and long-term platform support. While you perform the migration, I also want to introduce a handful of new features to take advantage of MAUI’s capabilities rather than simply doing a like-for-like port. Core scope The current app has about the usual mix of pages, view-models, and XAML-based UI. All functionality that works today must compile, deploy, and behave the same on iOS and Android after the upgrade, plus the agreed-upon enhancements. Any platform-specific tweaks (e.g., iOS status bar, Android permission prompts) should be handled with MAUI best practices. Key deliverables • Up...
Android broadcasting NFC data and IOS receiving the NFC text with full source code and being able to replicate the same as was shown on the chat videos
...cross-platform mobile app in Flutter and need help wiring up the NFC layer on each platform. On iOS the job is straightforward: when the user taps an NFC tag, the app should silently read the NDEF text record and present the payload on screen—nothing more, no writing required. Android demands a bit more. Besides reading tags in the same way, the app must also broadcast (beam) an NDEF text message so the IOS phone above or another Android phone can pick it up. A simple UI toggle to switch between “Read” and “Broadcast” modes is enough; the broadcast text can be hard-coded for now so I can change it later in code. Key points • Single Flutter codebase with platform-specific channels only where necessary • Use any well-maintained ...
Job Title Mobile App Developer Needed to Build Asset Installation Workflow (NFC + FileMaker Integration) Project Overview We are building a mobile asset lifecycle application, starting with a single, well‑defined Installation workflow. An existing Claris FileMaker database already stores all asset, site, and metadata records. This app will connect to that FileMaker system via API to read and update asset information during installation. This phase focuses only on the Installation workflow used by onsite contractors. Existing System Context • Claris FileMaker is the system of record for all assets • Assets already exist in the database prior to installation • Each physical asset includes an NFC tag containing a unique identifier • The mobile app will:...
I need a compact system that links physical NFC tags to a simple informational landing page and funnels every tap into meaningful analytics. Landing page The page is single-screen, mobile-first, and purely informational—no registration forms or quizzes. When someone taps a tag, they arrive here instantly, so load speed and clear branding matter. NFC tag logic Please generate each tag’s ID as a unique sequential number and encode it in the URL you burn onto the tag. That ID must persist through any redirect so we can track the specific tag that was tapped. Data to capture For every interaction, log the timestamp, the location of the tap, and any user details you can legally gather on first contact. Store these records in a database you set up (SQL or NoSQL...
I’m looking for an experienced embedded systems / hardware engineer to take over an existing ESP32-based NFC audio player project and bring it to a stable, functional demo prototype. This project already has: PCB design files (Gerber, BOM, Pick&Place, STEP) Partial firmware (ESP32, NFC, SD audio) ⚠️ Important clarification The physical PCBs are not currently available. The project must start with an audit of existing files, followed by a single PCB re-order (minimal changes only if strictly necessary), firmware completion, and validation on the new boards. Project Goal The goal is a functional demo prototype that: reliably reads NFC tags, plays mapped MP3 files from microSD, works on real hardware, is suitable for concept validation and demos. This...
...socket Teensy 4.1 ARM Cortex-M7 @600MHz audio DSP (61×18mm) 2.54mm headers SL2.1A USB Hub IC 4-port USB 2.0 hub Surface mount XIAO ESP32S3 LoRa module (21×18mm) 1.27mm headers STM32WB55 Module Dual-core ARM Cortex-M4/M0+ (Flipper brain) 8-pin header PyBoard v1.1 ARM Cortex-M4 backup controller 6-pin header GPS Module NEO-6M/8M 4-pin header CC1101 Module Sub-GHz radio 8-pin header ST25R3916 Module NFC/RFID 8-pin header OLED Displays (2x) 1.3" 128×64 I²C 4-pin headers Trackball Module BlackBerry-style USB HID 4-pin header Power Regulation 5V/3.3V from 10000mAh USB-C power bank + CR2032 coin cell (RTC backup) USB-C + through-hole External USB-C Ports (2x) Panel mount, power + data USB-C connectors PCB Specifications: Parameter Requirement Layers 4-layer (...
...USB-I²C bridge must be: - clearly identifiable - independently initialized - robust against reconnects or resets - SW must recognize if a I2C bus is disconnected - finally CODESYS platform needs to be ably to react on I2C disconnects or connects --- ### 4.2 Sensors and Modules #### I²C / USB-I²C Connected Devices On one of the FT260 brigdes are the following I2C slaves connected: - **PN532 NFC controller** - **Atlas Scientific EZO modules**: - pH sensor (EZO pH) - Conductivity sensor (EZO EC) - Silicon Labs temperature & humidity sensor SI7020 - MCP23017 GPIO expander (valve control) - SW must recognize if a I2C bus is disconnected - finally CODESYS platform needs to be ably to react on I2C disconnects or connects --- ### 4.3 IO and Actuation - MCP...
...design for a punch-in/punch-out device. The enclosure will be used on a wall and must fit electronics inside and expose an NFC reader + display outside. Target enclosure size: 200 × 200 × 100 mm (approx.) Inside components to accommodate: Raspberry Pi 4B (2GB and 4GB variants) Charger / power supply + wiring NFC card/tag reader LCD 2004 display wires Required features: Openable front door (hinge) + waterproof concept (gasket / lip / sealing channel). Back power entry: a hole/slot to bring in the power cable (preferably sized for a standard cable gland). Dedicated mounting for Raspberry Pi 4: standoffs and screw holes (or a tray/holder), aligned properly. Front cutouts: NFC scanner opening: 10 cm × 6.5 cm, horizontal Screen opening: 9 cm × 6...
...of decision-makers from Dubai-based accommodation providers ahead of the Arabian Travel Market in May 2026. My priority is mid-range (3-star) hotels, but I’m open to motels and other tourism-related service businesses that would benefit from: • SEO campaigns focused on boosting local search rankings • Revenue-driven PPC and social media advertising • End-to-end review management, including NFC review cards and QR code feedback tools • Full digital and website marketing support For each contact you supply, I want the property name, key person’s name, role, direct email, phone/WhatsApp (where possible), and a brief note on why they’re a good fit. Warm introductions or verified permission to reach out will be valued even more highly....
...contains only three screens: • Login – users choose Face ID/biometrics, an NFC badge tap, or a numeric PIN to sign in. • WebView – after authentication the app simply embeds a URL that I will provide at build time. • Admin – a management screen (hidden behind its own sign-in) where I can add or edit users, assign permissions, and tweak basic app settings. All data, including user credentials, roles and configuration, must live in a MySQL database accessed through a secure REST API that you will craft and integrate. Please separate API, data-access and front-end layers cleanly and keep the code in MVVM pattern. C#, .NET 8, Entity Framework (or Dapper), Visual Studio and standard platform libraries for biometrics and NFC are preferred. ...
Job Title Secure Membership Platform Developer – Private, Verified, NFC & Event Access (Fraternity) Project Description We are building a protected, private membership portal for Black Bro Phi Fraternity (BBΦ). This system must be security-first, verification-based, privacy-protected, and adult-only. It is not a public community, not a social network, and not open access. What You’re Building A protected membership portal where: There is no public browsing of member pages Users cannot guess URLs to access anything Only verified and approved members can log in The public can only access limited verification pages (no private data) Access Control (Required – Default Deny) Every portal page must require authentication If a user is not logged in &r...
...og som PDF. • Mulighet for rabattkuponger som jeg kan opprette fra et enkelt adminpanel. Utlåsmekanikk Når bestillingen er betalt, skal kunden kunne låse opp kajakken ved å skanne en QR-kode på stedet med mobilen. Jeg trenger derfor en lettvektig QR-løsning (web-app eller integrert modul i nettsiden) som kommuniserer med låsen via det API-et jeg stiller til rådighet. Ingen Bluetooth eller NFC kreves. Øvrige forventninger – Responsivt design som bevarer det klassiske uttrykket på mobil, nettbrett og desktop. – Rent, forståelig kodeoppsett (HTML/CSS/JS + valgfri backend-stack) som jeg kan vedlikeholde. – Kort opplæring eller enkel dokumentasjon for hvordan legge til nye k...
...GPS/VLT/AIS-140 devices, fire-extinguisher checks, driver licence and badge renewals—and stores the next due date alongside a digital copy. • When a date is approaching, the owner and any assigned RTO Agent receive an in-app alert plus an SMS and WhatsApp message. Admin sees the same warnings in a consolidated panel. I’m happy with mainstream cross-platform stacks such as Flutter, React Native, or Xamarin so long as performance is smooth and the Windows build installs without side-loading. A lightweight web API with a secure SQL or NoSQL backend is fine; just make sure it scales. Deliverables 1. Source code with clear build instructions for all three platforms. 2. Simple cloud or on-premise deployment guide for the backend. 3. Tested notification workfl...
...iPad. The goal is a seamless, touch-friendly version that preserves every existing workflow while taking advantage of iPadOS capabilities. Your task • Review the present SQL Server schema, stored procedures, and any helper scripts. • Design and build an iPad solution that connects securely to the same data set, whether through a native Swift/Objective-C app, a .NET-based wrapper (e.g., Xamarin or .NET MAUI), or a well-optimized web front end—whichever you can justify as the most stable and maintainable. • Implement offline caching for spotty connections and ensure real-time sync when the device comes back online. • Handle authentication/authorization identically to the desktop version so user roles carry over without rewriting our security mod...
...og som PDF. • Mulighet for rabattkuponger som jeg kan opprette fra et enkelt adminpanel. Utlåsmekanikk Når bestillingen er betalt, skal kunden kunne låse opp kajakken ved å skanne en QR-kode på stedet med mobilen. Jeg trenger derfor en lettvektig QR-løsning (web-app eller integrert modul i nettsiden) som kommuniserer med låsen via det API-et jeg stiller til rådighet. Ingen Bluetooth eller NFC kreves. Øvrige forventninger – Responsivt design som bevarer det klassiske uttrykket på mobil, nettbrett og desktop. – Rent, forståelig kodeoppsett (HTML/CSS/JS + valgfri backend-stack) som jeg kan vedlikeholde. – Kort opplæring eller enkel dokumentasjon for hvordan legge til nye k...
...og som PDF. • Mulighet for rabattkuponger som jeg kan opprette fra et enkelt adminpanel. Utlåsmekanikk Når bestillingen er betalt, skal kunden kunne låse opp kajakken ved å skanne en QR-kode på stedet med mobilen. Jeg trenger derfor en lettvektig QR-løsning (web-app eller integrert modul i nettsiden) som kommuniserer med låsen via det API-et jeg stiller til rådighet. Ingen Bluetooth eller NFC kreves. Øvrige forventninger – Responsivt design som bevarer det klassiske uttrykket på mobil, nettbrett og desktop. – Rent, forståelig kodeoppsett (HTML/CSS/JS + valgfri backend-stack) som jeg kan vedlikeholde. – Kort opplæring eller enkel dokumentasjon for hvordan legge til nye k...
We are seeking an experienced Electronics Engineer with strong expertise in PCB antenna design to develop a modular interactive hardware system for a public exhibition environment. The system includes: A Teensy 4.1–based Master Hub 50+ circular Slave Nodes (120mm) featuring high-density LEDs and RFID/NFC sensing This is a specialist-level project, ideal for engineers with 4–5+ years of proven experience in antenna PCB design, RF systems, and power electronics. Core Technical Requirements -Antenna / RF Design -PCB antenna design & tuning for ST25R3911B -7cm reliable read range through 3mm resin -ISO 15693 compatibility RF simulation & validation required -Power & Thermal Design -24V / 10A daisy-chained power bus -Circular PCB, 2oz copper, thermal via stitch...
...hospitality associations Wedding planners, corporate event planners Event industry expo or trade show organizers Your Responsibilities: Provide a minimum of 10 warm introductions to qualified venue decision-makers Help arrange Zoom meetings between your contacts and our team Advice on positioning for: Google review & reputation management Digital marketing for weddings & corporate events NFC cards, QR inquiry & guest feedback systems Recommend event industry expos, conferences, and associations we should attend or sponsor Ideal Consultant Profile: Active relationships in the US event or hospitality industry Experience working with venues, planners, or associations Strong understanding of venue bookings, seasonality, and sales cycles Deliverables: 10 ve...
...hospitality associations Wedding planners, corporate event planners Event industry expo or trade show organizers Your Responsibilities: Provide a minimum of 10 warm introductions to qualified venue decision-makers Help arrange Zoom meetings between your contacts and our team Advice on positioning for: Google review & reputation management Digital marketing for weddings & corporate events NFC cards, QR inquiry & guest feedback systems Recommend event industry expos, conferences, and associations we should attend or sponsor Ideal Consultant Profile: Active relationships in the US event or hospitality industry Experience working with venues, planners, or associations Strong understanding of venue bookings, seasonality, and sales cycles Deliverables: 10 ve...
I’m building a cross-platform inventory application that talks directly to NFC tags so that stock can be added, counted, and located with nothing more than a phone. The core idea is simple: tap an item’s tag, the app instantly updates quantity and location in a shared database—no pen-and-paper, no bulky scanners. The scope right now is an MVP for both iOS and Android. I already have the product vision, rough wireframes, and a shortlist of cloud back-ends—Firebase and Supabase are front-runners, but I’m open if you have a strong preference. What I need is a developer who can turn those screens into a fast, stable mobile experience, handle the low-level NFC read/write flows, and guide our release into TestFlight and Google Play’s internal te...
Project Title Simple iPhone NFC Reader/Writer with Clipboard Functions Project Description I require a basic iOS application that enables users to: Read text from NFC tags (NDEF format) Write text to NFC tags (NDEF format) Copy read text to the iPhone clipboard Clear the clipboard with one tap This is a straightforward utility app with no complex features. The focus is on reliability and simplicity. Technical Requirements Core Features NFC Reading: Read NDEF text records from NFC tags NFC Writing: Write user-entered text as NDEF records to NFC tags Clipboard Integration: Copy read NFC text to clipboard Clear clipboard content Display current clipboard text Basic UI: Clean, simple interface following iOS design guidelines ...
I’m looking for a developer who can deliver a tiny, cross-platform (iOS and Android) mobile app that uses the Square SDK and an NFC reader to take a single, fixed donation with zero manual input from the user. Here’s exactly what the user flow should look like: • The screen shows a crisp minimalist $10 prompt. • A donor taps their contactless card or phone; the payment is processed automatically through Square. • A heart image flashes for two seconds as a thank-you, then the screen resets to the original $10 prompt. Behind the scenes I’ll need a lightweight online admin panel where I can: • Edit Square account credentials and display name. • Change the fixed donation amount without a new build. • Swap out the heart (or any ot...
I’m launching a premium paper journal that ships with an embedded NFC tag. When someone taps their iPhone on the cover, I want a lightweight utility to open instantly, start a timed focus session, and—via the Screen Time / FamilyControls API—block Facebook, Instagram, Twitter. etc until the timer expires. That single, friction-free ritual is the entire point, so the code has to be rock-solid and the interface completely minimalist: brand splash, countdown, done. I already sourced an open-source Swift project that handles NFC reads and basic Screen Time restrictions. You’ll adapt that code, add my brands colors and typography, wire in the timer-based block list, and take care of the App Store pipeline (bundle IDs, entitlements, TestFlight, screenshots,...
I run a clothing store and currently track loyalty points in Excel / Google Sheets. I now want to issue NFC NTAG213 cards so a customer can simply tap their card with any Android or iPhone and be taken to a mobile-friendly Google Sites page that shows four read-only fields pulled live from my sheet: Customer Name, Customer ID, Available Points, and Tier. Key points you will be working with • Cards store nothing except a single URL; all data must load server-side via the Customer ID embedded in that link. • No on-phone redemptions, edits, or app install—purely a display page. • Google Sites is the preferred front-end, backed by Google Sheets (or any equally lightweight intermediary) for the data lookup. • Design should stay simple and clean so it lo...
ESP32 tabanlı, GSM hatlı bir endüstriyel cihaz geliştiriyorum ve projenin omurgasını oluşturacak gömülü yazılıma öncelik veriyorum. Cihaz; SimCom GSM modülü, RFID/NFC etiket okuyucu, 2 analog giriş, 3 röle çıkışı, 1 PWM kanalı, ayrıca ekran ve tuş takımını içerecek. WiFi ile Bluetooth’un birlikte aktif olduğu bir mimari planlıyorum; uzaktan güncelleme / servis kolaylığı da hedefler arasında. Uygulama tarafında cihaz, sahadan GSM üzerinden yaklaşık 200 iş emri alacak, bunları sıraya koyup tamamladıkça yine GSM üzerinden sunucuya raporlayacak. İşlem güvenilirliği, güç kesintisine dayanıklılık ve hat içi (OTA) güncelleme kabiliyeti kritik. Elektronik tasarım ihtiyacım da var...
...or hospitality associations Wedding planners, corporate event planners Event industry expo or trade show organizers Your Responsibilities: Provide minimum 10 warm introductions to qualified venue decision-makers Help arrange Zoom meetings between your contacts and our team Advise on positioning for: Google review & reputation management Digital marketing for weddings & corporate events NFC cards, QR inquiry & guest feedback systems Recommend event industry expos, conferences, and associations we should attend or sponsor Ideal Consultant Profile: Active relationships in the US event or hospitality industry Experience working with venues, planners, or associations Strong understanding of venue bookings, seasonality, and sales cycles Deliverables: 10 veri...
Project Description I am developing an educational NFC-based audio player for children (ages 2–7). The concept is simple: a child places an NFC figurine on the box, and an associated audio story is played. The project already has a custom PCB prototype (ESP32-based) and early firmware work, but I am looking for a new freelancer to take over, audit the existing work, and complete a fully functional prototype. This is a serious product project, not an experiment. What Already Exists: I will provide a structured project folder including: Custom PCB files (Gerber, BOM, Pick & Place, STEP file) PCB size: 80 × 80 mm ESP32-based design NFC reader integrated MicroSD slot Battery charging circuit (Li-ion) USB-C Speaker output + headphone jack NF...
