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    5,000 jquery prototype jobs found

    I need a lightweight, browser-based calling page that lets any visitor press “call”, spins up a WebRTC session, and lets a single agent answer from another tab or device—all without logins, passwords, or third-party auth. The whole solution must run smoothly on a Linux server. If you can demonstrate a working prototype quickly and keep the code clean and well-commented, that’s exactly what I’m after. Follow-up milestones to do call hunting, routing, etc

    $126 Average bid
    $126 Avg Bid
    138 bids

    Freelancer Required – SAW Welding Controller Development We are looking for an experienced Embedded Systems / PCB Design Engineer to develop a dedicated controller PCB for an SAW (Submerged Arc Welding) machine. The welding control logic has already been developed and tested on an Arduino development board. We now want to convert the existing prototype into a reliable, compact and industrial-grade controller PCB. Scope of Work * Review existing Arduino code and logic * Convert Arduino-based control logic to a suitable MCU platform such as STM32 * Design complete circuit schematic * Design industrial-grade PCB * 24 VDC industrial input/output * Isolated digital inputs and protected digital outputs * Analog inputs for welding voltage/current feedback * Welding voltage sensin...

    $1067 Average bid
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    12 bids

    I need an experienced electrical or electronics engineer to custom design and build a working prototype of a compact, self-sustaining, solar-powered LED lighting system.” “The system should use a round solar panel around8 to 10 inches in diameter – smaller if feasible– a rechargeable battery, charge control, and efficient LED lighting. The LED load is expected to be a 24-inch, 12-volt LED strip drawing roughly5 to 8 watts. The system must switch on automatically at dusk and off at dawn, and reliably power the LEDs for at least 10 to 11 hours per night under normal conditions.” “Components should be weather-resistant, targeting something like IP67 or 68.” “Please answer the following in your proposal: Have you designed similar solar or ...

    $206 Average bid
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    42 bids

    I already have complete mechanical drawings for a small assembly that contains between six and ten individual parts. Each part will be produced by 3 D printing and the first milestone will simply confirm that every component nests and mates properly for fit-and-assembly testing; functional loads are minimal at this stage. What I need from you: • Native CAD files in the package you normally model with (SolidWorks, Inventor, Fusion 360, etc.) for every single part • STEP files of those same parts, ready for my manufacturing partners • An assembly file that lets me run my own clearance checks • A short note on print orientation or any critical tolerances so that my printer can replicate your intent Please include an estimated schedule in your proposal: the time y...

    $384 Average bid
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    87 bids

    ## AI Developer / AI Engineer – Ongoing Monthly Projects We are looking for an experienced **AI Developer/Engineer** to work with us on an ongoing monthly basis to help design, prototype, and build AI-powered solutions. This is not a single-project engagement. We have a growing pipeline of AI initiatives and are looking for someone who can become a long-term technical partner, working with us each month to take ideas from concept to working solutions. ### What You'll Work On Projects will vary month to month and may include: * Building AI agents and agentic workflows * Developing applications using LLMs such as OpenAI, Claude, and Gemini * Connecting AI to existing applications, APIs, databases, and business systems * Building RAG/search and knowledge-based AI soluti...

    $2053 Average bid
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    182 bids

    I have a working prototype of Golf Coach Now (on my android) The first deterministic IP in skill learning, a platform designed to teach any skill through clear, repeatable learning paths. I’m offering a 5 % equity stake to a hands-on CTO who can tighten the codebase, raise quality standards, and guide the product to a public launch. See youtube video below I'm getting a lot of stupid responses. Forgive teh lack of symmetry here..... You finish V1 of my product, and deliver V2, (scope to be provided) you get 5% of my company. Version 2 will take less than 7 days. Its templates, workflows, video assets. ZERO Coding. ZERO. Then we do pickelball , then spinal correction coach now, piano coach now. ITS a TEMPLATE engine. A learning platform. Golf is the first inst...

    $91 Average bid
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    116 bids

    I’m setting up a fresh e-commerce site and I need a clean, modern design that showcases a rich product catalog as the f... catalog, product-detail and about pages designed around the catalog feature. • UI components: navigation, search bar, image gallery, pricing block, and “add to cart” button placeholders. • Style guide covering typography, colour palette and reusable components. Acceptance criteria • Pixel-perfect alignment with supplied brand assets. • Fully responsive behaviour demonstrated in the prototype. • Handover includes layered design files and export-ready assets (SVG/PNG/JPG). If you regularly craft storefronts for Shopify, WooCommerce or custom stacks and can deliver a polished catalog-centric experience, I&rsquo...

    $380 Average bid
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    261 bids

    We are Safe Instrumentación (Bogotá, Colombia). We design a modular data-acquisition system for geotechnical and industrial instrumentation, with four boards: a main "Brain" (STM32G0B1RE, FRAM, LoRa, LTE modem, RS-485, native USB) and three accessory nodes (vibrating-wire VM501C, inclination SCL3400, and a DS18B20 temperature chain of up to 200 sensors). We already have a working prototype. We do NOT need firmware — we develop it ourselves. We need a senior engineer (or firm) to take the hardware to production: Review and optimize the existing schematics Verify and strengthen protections (ESD, surge, EFT; galvanic isolation on RS-485; reverse-polarity/overcurrent) Optimize power management and consumption (seamless mains/battery switching, low-power m...

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    52 bids

    I am Rhys and I need a compact, hand-held magnetic piston engine built mainly for prototype testing. The focus is on a basic structure that proves the concept is viable rather than on immaculate cosmetic detailing. Metal is the preferred material for all key components so the unit can handle repeated cycles and provide realistic performance data. Here is what I expect: – A fully assembled, self-contained model small enough to sit comfortably in one hand. – Reliable reciprocating motion driven purely by magnetic interaction (no combustion or external power once started). – Simple switching or timing mechanism that keeps the piston cycling so I can observe efficiency and forces at play. – Any quick sketches, CAD files or wiring diagrams you create whil...

    $154 Average bid
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    57 bids

    ...files, BOM, and a brief assembly/testing guide. If you have a preferred sensor family (SHT3x, BME280, DHT series, etc.) or MCU platform (AVR, STM32, ESP-free), feel free to suggest it—long-term parts availability is more important to me than brand. I’ll handle enclosure design once the electronics are final, so board outline and mounting hole recommendations are welcome. Acceptance criteria 1. Prototype on my bench passes a 24-hour stability check against a reference meter. 2. Display remains legible from at least 1 m in typical indoor lighting. 3. Source files are delivered in their native formats (KiCad or Altium for hardware, C/C++ or Arduino IDE for firmware). Let me know your chosen sensor, projected accuracy, and the timeline you can realistically meet, a...

    $255 Average bid
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    26 bids

    ...minimalism, I’m open, but the interface must stay light and distraction-free. I’ll provide current screenshots, user flows, and a basic component list. From you, I expect: • Two or three visual explorations of the main dashboard • A polished final dashboard in Figma (desktop + responsive breakpoints) • A small UI kit: colours, typography, buttons, form fields, icon guidelines • Click-through prototype showing key interactions (e.g., widget expand/collapse, quick-add modal) Acceptance criteria • Visual language matches the minimalist brief and passes basic accessibility (WCAG AA colours) • Components are reusable across the rest of the admin panel • Figma file is layered, named, and grouped for easy hand-off to our Re...

    $252 Average bid
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    98 bids

    ...be a present for a young child, so durability and child-safe materials (hypoallergenic stuffing, securely embroidered features, no loose parts) are essential. Here’s what I need from you: • A short sketch or digital mock-up based on the reference art I’ll provide once we start. • Fabric and trim suggestions that match the colour palette while staying gentle to the touch. • A fully-sewn prototype in the agreed-upon size range, stuffed and ready for photos from multiple angles. • One shipped final piece that passes basic tug-and-pull tests without seams opening. I’m happy to discuss lead time, shipping method, and any pattern ownership details before we begin. If this sounds like a fun project to you, let’s talk through the spec...

    $182 Average bid
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    46 bids

    ...3D geometry and must have a premium appearance. Expected quantities: 1 prototype/sample 20 pcs 100 pcs 200 pcs 400 pcs and, where appropriate, 1,000 pcs Sizes required for the complete wheel-cover version: 15” / 16” / 17” ⸻ QUALITY AND PRICE ARE BOTH CRITICAL This is intended to be a premium product, therefore quality is non-negotiable. At the same time, I am sourcing in China specifically because I want a highly competitive manufacturing cost. I need suppliers capable of delivering: premium quality + reliable manufacturing + excellent finish + aggressively competitive pricing I am NOT looking for the cheapest possible product if quality suffers. I am also NOT interested in unnecessarily expensive prototype suppliers when a more efficient Chin...

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    ...accuracy is the priority. Acceptance criteria 1. Updated 3-D model reflects the new size I approve. 2. Thread interface matches the original spindle with no play or cross-threading. 3. Knob edges are chamfered/rounded so they don’t snag line or gloves. 4. Final files are delivered in STEP and STL with a brief drawing noting critical dimensions. Once the model is finalised, we can discuss prototype or small-batch production, but the immediate deliverable is the complete, correct digital design....

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    ...Source code with brief build instructions 3. A sample data file populated with one dummy week for reference 4. User guide (5-10 pages max) covering entry, backup/restore and PDF sharing I’m looking for something robust but minimal: no bloated libraries, just clean code that can be maintained internally if we ever need tweaks. Let me know your proposed tech stack and an estimated timeline from prototype to final hand-over....

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    I need a prototype desktop or web application that lets secondary-school students create 3D projects and immediately test their ideas with built-in physics simulation. Circuit design was an early thought, yet my priority now is a smooth 3D workspace that shows real-time forces, collisions, gravity and basic material behaviour so each student can see whether a concept would work in the physical world. Core requirements • A simple modelling canvas where users can add, move and resize primitive shapes or imported meshes. • A physics engine (Bullet, PhysX, Havok, or an open-source alternative) already wired in, offering toggles for gravity, mass, friction and constraints. • One-click simulation: hit “Run” and watch live feedback—velocity vectors, ...

    $219 Average bid
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    13 bids

    I'm looking for a skilled CAD designer to assist with product design at the prototype stage. The primary purpose of this prototype is to test functionality. The ideal candidate should have: - Expertise in product design CAD software (e.g., SolidWorks, AutoCAD, Fusion 360). - Experience with creating detailed and accurate prototypes. - Strong understanding of design for manufacturability and assembly. - Ability to iterate based on feedback and collaborate closely with me. Please include samples of previous work and a brief outline of your approach to this project.

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    20 bids

    ...creation to viewing and editing a profile—should follow Google’s latest Material Design guidelines while still feeling fresh and branded. I’ll supply the logo, colour palette, and a rough sitemap; you translate that into pixel-perfect layouts, reusable components, and an interactive Figma prototype that shows real navigation flow. Deliverables • Complete Figma file with organised layers, components, and styles • High-fidelity Android screens covering all profile-related journeys • Clickable prototype that demonstrates navigation and micro-interactions • Style guide (typography, colour, iconography) for hand-off to developers I’m happy to iterate quickly, so please factor in two feedback rounds. If you’ve shipped A...

    $12 / hr Average bid
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    103 bids

    ...helping me choose the option that best matches my goals and skill-level. I learn best when things are broken down clearly, so you will need to explain concepts in plain language, suggest suitable tech stacks, and pair-program or screen-share while we build a small, working prototype together. At the end I want to understand what we did, why we did it, and how I can extend it on my own. Deliverables • A short planning document outlining the recommended direction and tools. • The fully commented source code for the prototype. • Step-by-step notes (or a recorded walk-through) so I can revisit the process later. If you enjoy teaching, can adapt to a complete beginner’s pace, and are comfortable collaborating over Zoom, VS Code Live Share, or s...

    $388 Average bid
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    93 bids

    ...Word-Adventure Prototype I’m looking for an experienced game developer or small indie team to build a playable prototype for an original game called Skull Smart. Skull Smart isn’t a traditional word-puzzle game. It’s a third-person, explorable word-game world where language is physically integrated into the environment. Players discover challenges, collect letters, interact with words and use language to change the world around them. The visual direction is cartoony street art/graffiti — intelligent, silly, weird and slightly rebellious. The first prototype will be approximately 10–15 minutes and take place in a small grayscale City environment. It will include character customization, exploration and three playable word games: Buil...

    $686 Average bid
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    I want to build a small, stand-alone demo that lets a user push a virtual anaesthesia syringe and physically feel the changing resistance as the needle travels through skin, fat, muscle and finally bone. The visual scene only needs moderate polygon detail, yet the tissue layers themselves must carry realistic PBR textures so the transition between layers is clear on screen...textures applied • Live haptic integration tied to depth in each layer • A concise read-me covering build steps and where to edit force tables • Full details on the motor, sensor setup, materials used, and technical documentation. I’ll share reference imagery, layer thickness data. If you’re comfortable marrying moderate-detail graphics with advanced haptic feedback, let’s chat and get...

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    4 bids

    I’d like to commission a complete 3D arcade-style mobile game for Android, from first prototype all the way to live publication on Google Play. Here’s the vision: fast-paced, one-touch mechanics in the spirit of classic arcade gameplay, rendered with lightweight 3D graphics that perform smoothly on a wide range of devices. I am open to fresh concepts you already have on hand or to brainstorming a brand-new idea together—fun, repeatable gameplay with a clear high-score loop is what matters most. Commercial rollout is essential, so the build must include a solid ad-monetisation layer (AdMob or Unity Ads preferred, but I’m flexible if you have another SDK you trust). Please plan for rewarded video and interstitial placements that respect the user experience....

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    I need an existing motion sensor prototype miniaturized to a 2.5x1.5x0.8 inch package. Requirements: - Reduce size of circuit board, casing, and power supply as needed - Maintain functionality and performance Ideal Skills: - Experience with electronics miniaturization - Proficiency in working with motion sensor circuits - Strong background in PCB design and integration

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    NDA
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    56 bids

    I am looking for an independent leather artisan to bring a modern architectural handbag design to life. I need one flawless, physical prototype of a structured mini trunk bag to use for a luxury pre-order campaign. ​Requirements: ​Must have experience cementing and sewing rigid Texon board to create precise 90-degree box corners. ​Comfortable working with hair-on cowhide and premium genuine leather. ​Skilled in luxury edge painting, creating accordion interior gussets, and installing metal hardware (corner guards, locks, and purse feet). ​This is for a single hero sample, with the goal of hiring you for small-batch manufacturing once the pre-orders are funded.

    $478 Average bid
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    40 bids

    I need a lightweight web application whose core purpose is user interaction through personalised profiles. Visitors must be able to register, upload a profile picture, and fill out a short bio that displays cleanly on their public page. No additional commerce or bulky CMS modules are required; this pro...“how-to-deploy” read-me are essential so I can maintain it later. Key deliverables: • Responsive registration & login flow • Profile edit page with picture upload and bio fields • Public profile page displaying the photo and bio • Basic security (hashed passwords, input validation) • Installation-ready source, database schema, and deployment instructions If you can produce a clear, functional prototype that meets these points with...

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    44 bids

    ...cool or damp conditions. Here’s how I see the workflow: first, you prepare a small pilot batch that demonstrates uniform cube size, stable ignition, and a burn time long enough to light standard kindling. Once the sample is approved, we scale to larger monthly runs that you can pack in recyclable cartons bearing my private label artwork (print-ready files supplied). Deliverables • 25–50 prototype cubes shipped for testing • Written breakdown of materials, pressing method, and any additives used • Per-unit cost schedule for 1 k, 5 k, and 10 k runs • Timeline and logistics plan for repeat production and global freight Acceptance criteria: every cube must light with a single match, reach peak heat in under ten seconds, and remain stab...

    $35 / hr Average bid
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    Description I need one physical prototype assembled from a complete, tested design. This is a hands-on build — soldering, basic fabric mounting, and loading provided code — with no design work. Everything you need is written down: a parts list (~$80), a wiring diagram, a belt layout drawing, the two microcontroller programs, and a three-step verification procedure. What you'll build A wearable elastic belt carrying six small 3V coin vibration motors, each glued into a small rigid pod and Velcro-mounted so it can be repositioned. The motors are driven by a BBC micro:bit v2 through a ULN2003 driver chip, powered by a 3×AA pack, housed in a small pouch or box on the belt. A second micro:bit v2 serves as a handheld controller and talks to the belt over the micr...

    $37 / hr Average bid
    Featured
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    24 bids

    ...Status not communicated by color alone - Reduced-motion consideration FIGMA & HANDOFF Figma is the canonical design workspace. Expected structure: - Foundations - Components - Patterns - Website - SaaS - Mobile - Customer booking - Internal/admin - Archive Final work should include: - Component specifications - Responsive behavior - Interaction notes - Validation behavior - Screen states - Prototype links - Edge cases - Developer-ready handoff WORKING PROCESS Expected milestones: 1. Product Audit + UX Gap Register 2. Foundations + Design System 3. Core SaaS flows 4. Extended SaaS modules 5. Public Website 6. Mobile + Customer Experience 7. Final UX QA + Engineering Handoff The exact plan can be refined after the initial audit. WHO WE ARE LOOKING FOR Strong prefere...

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    177 bids

    ...indicators Charts Feed components Room components Chat components Notifications Filters Empty/loading/error states The design should be mobile-first, while also supporting responsive web/desktop experiences. Expected Deliverables User flows Information architecture Wireframes High-fidelity UI Complete design system Reusable components Mobile app designs Responsive web designs Interactive Figma prototype Developer-ready Figma files Design specifications/assets where required Important flows include: Signup → Onboarding → Profile Profile → Verification → Account Connection → Verification Status Feed → Post → Engagement → Profile Explore → User → Profile → Follow Creator → Create Room → Configure → Publish...

    $249 Average bid
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    I need a golf club design turned into a 3D prototype. I have sketches and can adapt to any 3D design software: AutoCAD, SolidWorks, or Fusion 360. Essential features: - Grip texture - Weight balance - Aerodynamic shape Ideal skills include: - Proficiency in 3D modeling - 3D printing expertise Close collaboration with designer.

    $23 / hr Average bid
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    I’m building a small embedded prototype that can recognise a road accident the instant it happens, trigger a buzzer on-board and then text the vehicle’s GPS coordinates to a presaved emergency contact. An accelerometer will be the sole crash-detection sensor, so the firmware has to watch for abnormal spikes on that device, classify them reliably as a collision rather than rough driving, and fire the alert routine. Here is the workflow I have in mind: the microcontroller samples the accelerometer, confirms the threshold breach, sounds the buzzer for nearby help, fetches latitude and longitude from an attached GPS module and immediately sends an SMS through a GSM or LTE-M modem. If the cellular network is down, the code should queue and retry until a signal is regained. ...

    $10 / hr Average bid
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    ...simply another online store builder. --- ## Pages to Design * Homepage * Features * Pricing * Creator Public Page * Product Page * Service Page * Course Page * Login * Signup * Creator Dashboard * Product Management * Orders & Sales * Page Customization * Mobile Navigation --- ## Deliverables * Low-fidelity wireframes * High-fidelity designs * Desktop designs * Mobile designs * Clickable prototype * Style guide * Typography system * Color system * Components * Spacing system * Forms and buttons * Design system * Developer handoff **Figma is preferred.** Files should be properly structured using: * Auto Layout * Components * Variables * Styles All editable source files should be included in the final delivery. --- ## Final Goal OnePage should feel like a modern, p...

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    250 bids

    I already have a full set of detailed design files for my prototype and now need a clean, watertight STL that can go straight into a slicer for 3-D printing and visualization. Every dimension, tolerance, and radius on the drawings must carry through exactly, so you’ll be translating—not redesigning—the part. You will receive the native CAD files and supporting drawings as soon as we start. From there, I’m expecting: • An export-ready STL in the correct scale and orientation • Confirmation that the model is manifold, with no intersecting or reversed faces • A quick screen capture or viewer screenshot so I can verify the geometry before sign-off If you spot anything in the design that could cause printing issues, flag it early—I&rs...

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    Developer Requirements — Fan-to-Celebrity Gift Web App (Version 1) 1. Project Goal Build a fully functional, production-ready Web App, not a demo/prototype. The platform will allow fans to send/request physical gifts to celebrities, actors, influencers and creators while protecting their private addresses. Version 1 will use one central collection/processing station in Delhi, existing courier/postal services, and no own courier fleet. Android/iOS apps are not included in V1, but the architecture must support a future Android app using the same backend/API/database. 2. User Roles 1. Fan 2. Celebrity / Influencer / Creator 3. Admin Each role requires secure login, dashboard and role-based permissions. 3. Fan Features - Account creation and mandatory identity verification...

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    ...filling and leaf contact surfaces Scope of This Engagement — Phase 2 Only: Detailed CAD Engineering Full 3D CAD assembly (parametric, editable) Motion and mechanism refinement based on the Phase 1 architecture Food-contact component design Material selection and food-safe material recommendations Manufacturing considerations (DFM) Note: Phase 3 (manufacturing drawings, assembly documentation, prototype-ready CAD files, and design review/revision support) is a separate, future engagement and is not part of this scope. Strong Phase 2 work may lead to being selected for Phase 3. Deliverables Refined mechanical design for the entire machine, leaf feeding, filling, and rolling mechanisms Full 3D CAD assembly (parametric, editable) Food-contact component specifications an...

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    My current SaaS project is missing a polished, user–friendly project management ...buttons flow naturally so the most important project metrics are never more than one click away. • Optimise the layout for desktop first, while keeping responsive behaviour in mind. • Deliver source files in Figma (or Sketch/Adobe XD if that’s where you work best) along with a lightweight style guide so our devs can implement quickly. Speed is critical. I’ll share access to the current prototype and a shortlist of must-have widgets the moment we start; I’ll be available for rapid feedback rounds so we can lock the design and hand it to development without delay. If you have a solid track record designing data-heavy dashboards and can jump in immediately, let...

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    I want to kick-off a line of small automotive sound devices by starting with a straightforward 12 V buzzer that gives a single, clear alert tone. Your job is to take the idea from concept all the way to a testable prototype that can survive the usual temperature, vibration and voltage transients found under the hood. What I need right now • Electrical design (schematic, BOM and PCB layout) • Component choices that are readily available and automotive-grade • Basic acoustic tuning so the tone is sharp and easily heard inside and outside the vehicle • Short validation notes showing it meets the normal 9-16 V operating range and can cope with load-dump / reverse-polarity conditions Show me examples of past work on comparable low-cost automotive or motorcyc...

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    15 bids

    ...wireframes, prototypes, and design systems * Good understanding of usability and modern UI/UX principles * Ability to create clean, professional, and practical designs * Good communication skills and ability to meet deadlines ## Deliverables Depending on the project, deliverables may include: * User flows * Wireframes * Desktop and mobile UI designs * Mobile app screens * Interactive Figma prototype * Design system / component library * Icons, assets, and supporting graphics * Developer handoff files and design specifications ## When Applying Please include: * Your UI/UX portfolio * Examples of web and mobile application designs * Your experience with Figma * Your hourly rate or project rate * Your availability * A short explanation of your design process We are looking fo...

    $19 / hr Average bid
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    217 bids

    I’m building a new phone and my top priority right now is the Android software. Specifically, I need a fully-functional custom user interface that can be flashed onto the device and demonstrated on current Android hardware. The UI should: • Replace the stock launcher and system theme with a distinctive visual identity that matches the industrial design of the ...localise the interface I’m open to suggestions on additional enhancements—pre-installed apps or advanced security layers could come later—but for this milestone the focus must stay on the custom interface. If you have shipped launchers or system UIs before, this should feel familiar. Let’s discuss your approach, estimated timeline, and any device-side requirements so we can move quickly fr...

    $247 Average bid
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    41 bids

    ...performance all included. In parallel, I want to prototype a brand-new version inspired by several reference sites I will share once we begin. Because both tracks run side-by-side, you’ll start by mapping the existing codebase, isolating anything reusable, then proposing a modern full-stack architecture for the fresh build. I’m open to the stack you recommend as long as it keeps the interface fast, mobile-responsive and easy for me to extend later. Key deliverables • Detailed technical audit of the current site with a fix/upgrade plan • Implementation of the approved fixes and enhancements on the live site (deployed without downtime) • High-fidelity prototype of the new site based on my reference examples • Final production bui...

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    We are looking to purchase a ready-made, fully developed casino slot game that is exclusive and not publicly listed or sold elsewhere. This is a direct acquisition — not a development project — so we are only interested in games that already exist and are available for exclusive sale. Requirements: - [client] game must be fully developed and functional (not a prototype or demo) - Must be completely exclusive — not listed, published, or sold on any marketplace, app store, or platform - Exclusivity will be verified before any offer is made - Game should be a slot-style casino game with polished visuals and gameplay - Clean, transferable codebase with no third-party licensing conflicts - Seller must be [client] original developer or have full rights to sell Delivera...

    $90 / hr Average bid
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    I need a compact laser-based perimeter protection system for a commercial site that immediately calls a predefined phone number whenever the beam is interrupted. The solution must combine reliable laser detection hardware with a GSM module (SIM800, SIM900 or similar) and the ... The finished unit should be self-contained, run from standard low-voltage DC, and include clear wiring diagrams and firmware source so I can duplicate or service it later. If you can integrate basic tamper detection, weather-proof housings, or an optional battery backup, mention that in your proposal—those extras would be a plus but are not mandatory. To accept the work I will power up the prototype on-site, break the beam and confirm that my test phone rings without false triggers over a 48-hour moni...

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    7 bids

    ...dimensional targets into complete engineering documentation. That includes 3D CAD models, fully annotated manufacturing drawings, a bill of materials with spec’d components, and any supporting calculations or finite-element checks needed to demonstrate structural integrity, vibration control, and operator safety. By the end of the engagement I want a set of files that a fabricator can quote and a prototype team can build without guesswork. I’ll supply target drum widths, power ratings, and regulatory requirements as soon as we kick off; everything else—mechanical layout, chassis design, hydraulic integration, controls positioning—will come from your expertise. Proven experience designing light construction equipment or similar off-highway machinery is ess...

    $18 / hr Average bid
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    8 bids

    ...electronics/IoT developer to build a **working prototype of a 4G SIM-based security camera and a simple mobile app**. The camera should work without Wi-Fi and connect to the internet using a SIM/4G network. ### Prototype Requirements * Camera with live video * 4G/SIM connectivity * Microphone + speaker for two-way communication * Battery powered * USB-C/external power or power bank support * Remote viewing from a mobile app * Basic camera controls * Simple backend/cloud connection * Prototype should support the concept of having multiple cameras at one location For the first stage, I am **not looking for a production-ready/custom-manufactured camera**. Commercially available development boards/modules can be used. The goal is to build **one complete working ...

    $307 Average bid
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    31 bids

    ...the most attention are visual design, user flow, and content layout. Expect to audit the current page, propose an updated information hierarchy, and then craft high-fidelity mock-ups—ideally in Figma or an equivalent collaborative tool—so our dev team can implement without guesswork. Deliverables I’m expecting: • A complete, layered design file with desktop and mobile breakpoints • Clickable prototype demonstrating the refined user flow • A concise style guide covering colours, typography, and key components for hand-off Stakeholders are ready to review quickly, so clear rationale behind your design decisions and timely iterations will be key to moving this project forward. If transforming an ordinary page into a bold, engaging brand touch...

    $32 / hr Average bid
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    160 bids

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