22 NASA Challenges That Made 2015 an Epic Year for Freelancer Contests
Let's have a rundown of all the challenges NASA posted via our crowdsourcing platform.
...déroulé des activités, démontage) ; – identifier les ressources techniques et humaines nécessaires (équipements numériques, artistes, animateurs) ; – prévoir des solutions pour mesurer et optimiser l’engagement du public adulte tout au long de l’événement. Une expérience avérée dans la production de festivals ou d’événements culturels innovants, la maîtrise d’outils interactifs (mapping, RFID, applications mobiles, etc.) et un réseau d’artistes ou de médiateurs seront de véritables atouts. Je privilégie une approche collaborative : faites-moi parvenir vos références liées...
...e-commerce basé à Casablanca. - Tâches à réaliser : Analyse fonctionnelle et besoins du client final. Élaboration du cahier des charges mécanique et des flux. Conception 3D sous SolidWorks / CATIA / Inventor de lignes de convoyeurs modulaires. Étude de layout, implantations, courbes, transferts, élévateurs, etc. Intégration des dispositifs de tri, pesée, lecture code-barres ou RFID. Préparation des plans de fabrication et d’assemblage. Recommandations sur les matériaux, motorisations, et systèmes de contrôle. Éventuellement, coordination avec automaticiens ou bureaux d’étude électrique. - Compétences re...
j'ai crée un projet matériel avec arduino nano every écran oled ainsi que le module rfid rc522, je souhaite faire un pcb complet, pas les empreinte pour pleuger l'arduino dessus mais vraiment l'inserer sur le pcb, mon but ces qu'il soit le plus miniaturisée possible
Bonjour je souhaite faire concevoir un petit POS, qui se connecte a internet
Je desire creer un BOm list et PCB désigne pour la programmation de clef de voiture wireless Ouverture porte fermeture porte , démarrage , sécurisé ouverture et fermeture a distance programmation et stockage pour toute les marques de voiture avec les technologies recents d'utilisation de clefs RFID. Nous avons les programmes pour installer les codes , nous recherchons donc l'adaptation pour l'application du système de stockage clefs Important : il est nécessaire de remettre un produit reel afin de tester et valider le produit possibilité de développement . entre autre il faudrait créer le système de demonstration pour la fonctionnalité a distance merci a tous
Nous souhaitons développer une application sur une tablette industrielle RFID tournant sur Android afin de réaliser des inventaires tout RFID
Développement d'un site web de paiement. Le site transmettra l'information de paiement à une tablette qui rechargera une carte RFID.
Bonjour, Je voudrais créer un site web où les Utilisateurs rechargent une carte RFID à prépaiement pour l'usage de machines diverses. Les Users auraient une appli sur leur smartphone qui recevrait le crédit acheté. Ensuite les Users paient l'usage de la machine en présentant présentant leur mobile au lecteur RFID intégré dans la machine qui décrimenterait le crédit restant dans l'appli de leur mobile. Tout cela, j'imagine que c'est possible de la façon que je décris ici mais franchement je n'ai aucune expérience dans ce domaine. Est-ce que vous seriez capable de m'aider ? Si oui, répondez-moi et nous pourrons en discuter par t&eacu...
Bonjour, Je voudrais créer un site web où les Utilisateurs rechargent une carte RFID à prépaiement pour l'usage de machines diverses. Les Users auraient une appli sur leur smartphone qui recevrait le crédit acheté. Ensuite les Users paient l'usage de la machine en présentant présentant leur mobile au lecteur RFID intégré dans la machine qui décrimenterait le crédit restant dans l'appli de leur mobile. Tout cela, j'imagine que c'est possible de la façon que je décris ici mais franchement je n'ai aucune expérience dans ce domaine. Est-ce que vous seriez capable de m'aider ? Si oui, répondez-moi et nous pourrons en discuter par t&eacu...
Bonjour, Je voudrais créer un site web où les Utilisateurs rechargent une carte RFID à prépaiement pour l'usage de machines diverses. Les Users auraient une appli sur leur smartphone qui recevrait le crédit acheté. Ensuite les Users paient l'usage de la machine en présentant présentant leur mobile au lecteur RFID intégré dans la machine qui décrimenterait le crédit restant dans l'appli de leur mobile. Tout cela, j'imagine que c'est possible de la façon que je décris ici mais franchement je n'ai aucune expérience dans ce domaine. Est-ce que vous seriez capable de m'aider ? Si oui, répondez-moi et nous pourrons en discuter par t&eacu...
Bonjour, Je voudrais créer un site web où les Utilisateurs rechargent une carte RFID à prépaiement pour l'usage de machines diverses. Les Users auraient une appli sur leur smartphone qui recevrait le crédit acheté. Ensuite les Users paient l'usage de la machine en présentant présentant leur mobile au lecteur RFID intégré dans la machine qui décrimenterait le crédit restant dans l'appli de leur mobile. Tout cela, j'imagine que c'est possible de la façon que je décris ici mais franchement je n'ai aucune expérience dans ce domaine. Est-ce que vous seriez capable de m'aider ? Si oui, répondez-moi et nous pourrons en discuter par t&eacu...
Bonjour, Je travaille avec l'entreprise EDYCEM, spécialiste en béton, sur la traçabilité des chapes fluides. Pour cela, nous aurons besoin de developer une application mobile pour la lecture des puces RFID. Votre profil et les recommandations me pousse à vous contacter concernant ce projet. Je reste a votre disposition pour plus d'information, mon email est : @
Bonjour, Je travaille avec l'entreprise EDYCEM, spécialiste en béton, sur la traçabilité des chapes fluides. Pour cela, nous aurons besoin de developer une application mobile pour la lecture des puces RFID. Votre profil et les recommandations me pousse à vous contacter concernant ce projet. Je reste a votre disposition pour plus d'information, mon email est : @
Bonjour, Je travaille avec l'entreprise EDYCEM, spécialiste en béton, sur la traçabilité des chapes fluides. Pour cela, nous aurons besoin de developer une application mobile pour la lecture des puces RFID. Votre profil et les recommandations me pousse à vous contacter concernant ce projet. Je reste a votre disposition pour plus d'information, mon email est : @
mon projet est le désigne d'une antenne RFID qui fonction a a la Band UHF et peut être utilisé a plusieurs application tell que la traçabilité .
mon projet est le désigne d'une antenne RFID qui fonction a a la Band UHF et peut être utilisé a plusieurs application tell que la traçabilité .
Nous souhaitons un logo pour une société qui s’appellera "Xpérience". Nous lançons une société type agence marketing dédié aux nouvelles technologies (beacon,rfid,NFC...) le développement d'application BtoBtoC dans l'univers du retail et pure players. Nous sommes 3 associés, jeunes (30 ans) et dynamiques. Nous voulons que le logo soit à notre image : Pro, simple, épuré, dynamique et faisant références à la notion de conseil marketing et technologique
Des tags RFID au prix unitaire inférieur à 0.0080 $
Boîtier RFID avec portée de 20 à 30 mètres.
Avec la technologie rfid ou nfc. Le client avec son bracelet crédité d unités peut depenser son crédit dans differents etablissements. Cashless system,
Avec la technologie rfid ou nfc. Le client avec son bracelet crédité d unités peut depenser son crédit dans differents etablissements. Cashless system,
implémenter un protocole basé sur TCP en java pour assurer la communication entre un boitier RFID et un pc
voir la description sur notre page pour le projet que nous souhaitons réaliser: Relier un boitier NFC/RFID type ACR122U avec un compte facebook, pour like, check in et photo
Ca fait 4 mois que je travaille sur le projet de rfid qui inclus nfc. je suis aller a las vegas a la defcon 21 , jai assiste a une conference sur le rfid, jai appris beaucoup de choses, et je suis rendu a letape dutiliser un lecteur qui intercepte les donnees qui emmettent des frequences iso 14443. text moi 514-655-9974, on va discuter. si tu nest pas serieux oublie .nnzak
I have individual, validated firmware blocks for the STM32L432KBU6 that handle an LIS3DH accelerometer (interrupt-driven), an EM4095 RFID front-end, the MCU’s internal touch-sensing controller, and a UART-based E220-400T22S LoRa module. My next step is to merge these routines into one cohesive, ultra-low-power application on our custom PCB. Power optimisation is the top priority. I want the system to remain in STOP mode most of the time, waking through the LIS3DH interrupt and periodic RTC events. When active, each peripheral must communicate reliably without compromising the sleep budget. Key points • Integrate existing C-based drivers into a single project • Configure and test the STOP-mode strategy, ensuring wake-ups from both the LIS3DH and the RTC function ...
Necesito ayuda puntual para afinar un proyecto existente sobre ARM STM32. El hardware ya cuenta con: • Protocolo de comunicación binario implementado • Dos tiras WS2812 de 60 LEDs cada una, controladas de forma independiente • Módulo RFID PN532 • Conjunto de switches de entrada Mi prioridad ahora es la integración del RFID y los switches; los obstáculos que enfrento son Problemas de software. Quiero que ambos elementos se lean de forma fiable y se enlacen correctamente con el resto de la lógica ya programada. Busco a alguien con demostrable Experiencia en: – Desarrollo sobre microcontroladores STM32 (bare-metal o HAL). – Manejo de periféricos I²C/SPI, interrupciones y temporización preci...
Necesito ayuda puntual para afinar un proyecto existente sobre ARM STM32. El hardware ya cuenta con: • Protocolo de comunicación binario implementado • Dos tiras WS2812 de 60 LEDs cada una, controladas de forma independiente • Módulo RFID PN532 • Conjunto de switches de entrada Mi prioridad ahora es la integración del RFID y los switches; los obstáculos que enfrento son Problemas de software. Quiero que ambos elementos se lean de forma fiable y se enlacen correctamente con el resto de la lógica ya programada. Busco a alguien con demostrable Experiencia en: – Desarrollo sobre microcontroladores STM32 (bare-metal o HAL). – Manejo de periféricos I²C/SPI, interrupciones y temporizació...
...real-time PDF preview system Developed responsive UI using Tailwind CSS and Framer Motion Implemented accessible components with ARIA standards Managed application state using React Hooks and Context API Integrated dark/light mode theming Optimized rendering using and useCallback Tech Stack: React, TypeScript, Tailwind CSS, Framer Motion, Context API Smart Lock System (IoT Project) Developed RFID-based secure access system using Raspberry Pi Pico Implemented MicroPython logic for authentication and monitoring Integrated servo motor and keypad-based access control...
...second and stored for later reporting and billing. • Vehicle registration via RFID tags – drivers scan once and the system should pull the tag ID, match it to a plate number and open the gate instantly. • Staff registration with two access tiers – an Admin workspace for full control (add / remove / edit users, rates, reports) and a Staff workspace for day-to-day monitoring, check-ins and basic edits. The project is pure web tech, so please use a modern stack you’re comfortable with (React, Vue, Laravel, Node, Django—your choice, just outline it). RFID readers will be exposed over the network via an SDK/API; I’ll supply sample data and device documentation. Acceptance criteria: a responsive browser UI, live RFID reads upd...
I have a Zebra fixed RFID reader with its paired antenna already installed on-site and now need it fully integrated into my own custom inventory-management software. The end goal is simple: every tag read by the reader must flow straight into the application so I can see precise item locations in real time and trigger automatic inventory counts without manual intervention. Here is what I expect: • Configure and fine-tune the reader and antenna for consistent EPC Gen 2 tag captures across our storage area, including power, sensitivity, and antenna multiplexing settings. • Build the middleware or direct API hooks—using the official Zebra SDK, REST streams, or another proven method—to push read events into my custom software database and message queue. &b...
...develop a complete RFID tag electronics solution for tracking equipment used indoors in high-humidity environments, such as laboratory instruments, workshop tools, and test equipment. The goal is to attach a small, flat, flexible, and lightweight shelf-style RFID tag (similar in form factor to book or library tags) to each asset. The tag must be rugged, low-profile, and suitable for attachment to fabric or textile surfaces, while remaining readable quickly and reliably by standard RFID readers. The system should enable identification of an item’s presence and approximate location within the facility. The tag must also be capable of reporting enclosure temperature and humidity via RFID. Scope of Work 1. RFID Technology Selection Evaluate and rec...
We are a CONSULTING company based in the European Union offering high-value technical PLANNING - GERMAN STANDARD and concept services to clients across industry, logistics, hotels, and commercial facilities. We are looking for experienced freelancers to support our projects in the following areas: Areas of Expertise: RFID Access Solutions – industrial facilities, hotels, commercial buildings, machine authorization Radio & Antenna Concepts – LoRa, WLAN, LTE/5G indoor coverage, antenna layout and field planning Automation Concepts – PLC design, process control workflows (planning only, no on-site execution) Robotics Concepts – educational and industrial robot integration, process optimization What We Offer: Remote collaboration across the EU Clear p...
We are a CONSULTING company based in the European Union offering high-value technical PLANNING and concept services to clients across industry, logistics, hotels, and commercial facilities. We are looking for experienced freelancers to support our projects in the following areas: Areas of Expertise: RFID Access Solutions – industrial facilities, hotels, commercial buildings, machine authorization Radio & Antenna Concepts – LoRa, WLAN, LTE/5G indoor coverage, antenna layout and field planning Automation Concepts – PLC design, process control workflows (planning only, no on-site execution) Robotics Concepts – educational and industrial robot integration, process optimization What We Offer: Remote collaboration across the EU Clear project scope and d...
...user who took the action. Location control is critical. Every product must be assignable to a bin slot that carries its own capacity rule, and the moment a slot hits its max the system must block further allocations unless an Admin overrides it. To make physical handling painless, the app should let me print a barcode or QR code for every bin and every item, then scan those codes—or even use an RFID reader—to confirm what is actually sitting on the shelf. The interface itself has to stay clean: a dashboard where people sign in, see today’s inbound and outbound movements, search inventory, and run three essential reports—Inventory Summary, Usage History, and Location-Based Inventory. I only need two roles for launch (Admin and Warehouse staff), but the ar...
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...
I need a tailor-made manufacturing module for Odoo 17 that will let my manufacturing team record every product sample and immediately see what stage it is in. All entries will be done manually for now, so the interface must be fast, error-tolerant, and easy for operators who are not barcode or RFID experts. Later on I may add scanning options, but the first milestone is a rock-solid manual entry flow. Once the data is in, I want decision-ready insight, not raw tables. The module should generate interactive reports that combine: • Real-time analytics (current queue, pending tests, turnaround times) • Historical trend views (weekly, monthly, yearly) • Side-by-side comparison charts for batches, lines, or shifts Charts need to refresh inside the Odoo dashboard,...
I need a tailor-made LAB module for Odoo 17 that will let my manufacturing team record every product sample and immediately see what stage it is in. All entries will be done manually for now, so the interface must be fast, error-tolerant, and easy for operators who are not barcode or RFID experts. Later on I may add scanning options, but the first milestone is a rock-solid manual entry flow. Once the data is in, I want decision-ready insight, not raw tables. The module should generate interactive reports that combine: • Real-time analytics (current queue, pending tests, turnaround times) • Historical trend views (weekly, monthly, yearly) • Side-by-side comparison charts for batches, lines, or shifts Charts need to refresh inside the Odoo dashboard, with dril...
...decentralized solution that provides a transparent history of ownership, transaction prices, and origin. Key Features & Functionality Dual-Nature Marketplace: Support for both digital assets and physical goods linked to NFT tokens. Advanced Authentication Flow: A system for experts to validate items, which are then assigned a digital identity in the blockchain space. This includes the integration of RFID chips, tags, and stickers to link the physical product to its digital twin. User Roles: Separate login portals and dashboards for Brands, Sellers, and Buyers. Bidding & Sales Engines: Implementation of both fixed-price listings and auction-style bidding. Blockchain Infrastructure: A decentralized application (dApp) initially running on the Ethereum blockchain, util...
I need a tailor-made LAB module for Odoo 17 that will let my manufacturing team record every product sample and immediately see what stage it is in. All entries will be done manually for now, so the interface must be fast, error-tolerant, and easy for operators who are not barcode or RFID experts. Later on I may add scanning options, but the first milestone is a rock-solid manual entry flow. Once the data is in, I want decision-ready insight, not raw tables. The module should generate interactive reports that combine: • Real-time analytics (current queue, pending tests, turnaround times) • Historical trend views (weekly, monthly, yearly) • Side-by-side comparison charts for batches, lines, or shifts Charts need to refresh inside the Odoo dashboard, with dril...
I need an RFID-based platform dedicated to Asset tracking, but instead of equipment or vehicles the “assets” are People moving through my facilities. The system must reliably capture and store two key data points for every tagged individual: Entry and exit times as well as their wider Activity history while on site. Core workflow RFID badges (or wristbands) will be read at all controlled doors and strategic zones. Each read event should be time-stamped, linked to the person’s profile, and pushed in real time to a central database. A responsive web dashboard will let me filter by person, date range, or location and export reports for compliance audits. Tech expectations I’m open on the stack, yet a modern combination such as Node.js or Python on t...
I’m launching a smart RFID door-lock handle and require a short, photorealistic 3D product video to act as the primary visual showcase. The video should clearly communicate keyless access, advanced security, and a sleek, modern aesthetic—with a realistic, high-end look and feel. Creative Direction The camera should smoothly glide across the brushed-metal surface, emphasizing material quality and form. An RFID card or smartphone approaches the lock, subtle LED indicators activate, and the door unlocks and opens seamlessly. A brief exploded-view animation may reveal the internal protected chipset before reassembling, reinforcing the product’s security and engineering strength. Deliverables 25–30 second video, Full HD or higher Final export in MP4 for...
Single-Camera / RFID Lap Timing System for RC Racing Arena Project Overview We are building a standalone lap-timing system for an indoor RC car racing arena, using a single fixed-position input at the finish line. The system must detect each car crossing the finish line and calculate accurate lap times in real time, displaying results live on a dedicated monitor beside the track. Detection may be implemented using: RFID reader Computer vision (OpenCV / ArUco / object tracking) Hybrid approach (preferred if it improves reliability) The priority is accuracy, stability, and simplicity, not experimental or over-engineered solutions. Project Objectives Real-time lap detection with ±0.05 second accuracy Clear on-screen display suitable for public viewing Simple, repr...
Somos una empresa de seguridad electrónica en CABA que terceriza instalaciones y servicios de manera continua. En este momento valoro, por encima de todo, tu experiencia concreta en instalación y soporte técnico de controles de acceso —especialmente sistemas RFID—, aunque gran parte del trabajo también incluye cámaras CCTV/IP, cableado y networking básico. Qué vas a hacer • Montaje, conexión y puesta en marcha de controles de acceso RFID (lectores, cerraduras, paneles, fuentes). • Instalación y mantenimiento de cámaras; trabajo frecuente con equipos Hikvision y Dahua. • Tendido de cableado estructurado, armado de patcheras y canalizaciones limpias. • Configuraci&oacu...
I’ve made an intermediate-level video tutorial that walks readers through RFID fundamentals and how these tags integrate with access-control hardware. Before I publish, I need a second set of eyes to view the underlying protocols and standards to make sure every detail is 100 % correct. If you have hands-on experience sniffing reader-tag traffic with tools like Proxmark3 or similar, your insight will be especially valuable.
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...
...from the initial batch (if applicable) Proper packaging Shipping costs will be paid by me, but must be discussed and approved in advance. No milestone will be released without: Video proof of the working physical prototype Confirmation of shipment (tracking number) If you cannot handle physical assembly and shipping, please do not apply. Required skills: ESP32 embedded development NFC / RFID (RC522, PN532, UID reading) Embedded audio (MP3 playback, I2S/DAC, amplifier, speaker) Firmware development & debugging Hardware testing on real PCBs Nice to have: PCB review & BOM validation Battery management (Li-ion) Experience with physical product prototyping Note This project already went through one iteration with another freelancer. I am looking for someone re...
Design and Implementation of a Non-WiFi Underground Miner Personnel Tracking & Emergency Rescue System (RFID-Based RTLS) PROJECT OVERVIEW We are seeking experienced mine-grade real-time location system (RTLS) / RFID solution designer and integrator to design a non-WiFi personnel tracking and emergency rescue system for underground mining operations. The objective is to implement a robust, intrinsically safe, real-time personnel tracking solution that enables the mine to locate miners in real time or last-known underground positions for emergency response, rescue operations, evacuation management, and compliance, without using Wi-Fi infrastructure. This project is currently at design and solution-architecture stage, with potential to progress into detailed engineering, ...
Our warehouse still relies on spreadsheets, and accuracy is slipping as order volume grows. To fix this, I need a complete RFID-based inventory system put in place. The focus is strictly on setting up the system; day-to-day stock tracking and future audits will stay in-house once everything is live. Deliverables • Workflow assessment and reader / antenna placement plan • Bill of materials for tags, fixed and handheld readers, middleware and any cabling • Installation and configuration of the chosen RFID software, database and user roles • One-time migration of current spreadsheet data so historical counts carry over seamlessly • User guide and a short remote training call so staff can handle daily operations on their own • Final acce...
Our warehouse still relies on spreadsheets, and accuracy is slipping as order volume grows. To fix this, I need a complete RFID-based inventory system put in place. The focus is strictly on setting up the system; day-to-day stock tracking and future audits will stay in-house once everything is live. Deliverables • Workflow assessment and reader / antenna placement plan • Bill of materials for tags, fixed and handheld readers, middleware and any cabling • Installation and configuration of the chosen RFID software, database and user roles • One-time migration of current spreadsheet data so historical counts carry over seamlessly • User guide and a short remote training call so staff can handle daily operations on their own • Final acce...
UHF RFID Antenna & Tag Simulation (HFSS / COMSOL) – Freelancer Needed We are looking for an experienced freelancer to support an R&D project focusing on UHF RFID (860–960 MHz) systems, specifically electromagnetic simulation and performance analysis. Scope of Work Perform electromagnetic simulations using ANSYS HFSS or COMSOL RF Module Analyze: UHF RFID tag and reader antenna behavior Antenna–tag interaction Impedance matching between chip and antenna Backscatter characteristics Read range performance Model different environmental scenarios: Metal proximity effects Shelves / walls / surrounding materials Tag orientation and polarization Conduct parametric studies and document results Expected Deliverables Simulation files (HFSS or COMSOL)...
Let's have a rundown of all the challenges NASA posted via our crowdsourcing platform.
Balazs and Gergo Szatmari’s business went from zero to thousands of prospects through Freelancer.com