Prototypentwicklung Jobs

I need an educational/demo circuit design featuring a 0.625" (15.875mm) circle. Requirements: - 4 sets of SMD resistors connected to a blue LED. - All sets powered and grounded in parallel. - Each Resistor and LED set run in an X shape 5mm outward from the center mounting hole - 5 mounting holes (1mm), arranged as follows: - 1 in the center - 4 at 6.75mm from the center in a + shape - Powered by 5V - Power input via solder point Ideal Skills & Experience: - Experience with SMD components - Circuit design knowledge - Proficiency in working with 5V power systems Extra: I cannot for the life of me figure out how to correctly design a PCB, but the attached picture is my general design if instructions are unclear. I designed it with SMD 1206 (3.2mmx1.6mm) Blue LEDs in mind but ...

I’m developing a small line of sensory resources that help toddlers build independence through play. My top priority is learning-focused support, so every item in the collection should guide young children in understanding routines and exploring cause-and-effect on their own. The core pieces I need designed are: • Visual schedules that use clear icons and sturdy, toddler-safe materials. • Tactile learning toys that invite squeezing, pushing, or sliding to reinforce fine-motor skills. • Simple interactive items (lights, sounds, or movement) that trigger only when a child’s action completes a task, rewarding self-directed exploration. All concepts must meet these standards: • Age-appropriate safety (rounded edges, non-toxic, choke-free components) an...

I’m creating a role-playing game in Unreal Engine and need a seasoned developer to turn my working prototype into a polished, expandable experience. The core concept, narrative arc, and placeholder assets are already in my Git repository; what I’m missing is rock-solid C++ and Blueprint work that brings the mechanics to life and keeps performance smooth on PC (with an eye on future console targets). Your job will be to audit the current project, refine or rebuild key gameplay systems—combat flow, character progression, dialogue, inventory, UI hooks—and then integrate them cleanly into the existing framework. Along the way, I’ll count on you to: • Write modular, well-commented code/Blueprints • Optimise lighting, shaders, and overall frame rate ...

My ePayYatra Android app already uses an AI assistant, but the interface feels dated and clunky. I want to give it a complete user-experience makeover focused on three areas: smoother navigation and flow, a cleaner visual look that aligns with modern Material Design patterns, and clear, friendly feedback that prevents errors before they happen. I don’t have mock-ups or reference apps to copy, so I’ll rely on your UX instincts. You’ll start by analysing the current screens, mapping the user journey, then proposing wireframes or low-fidelity prototypes. Once we agree on a direction, move into high-fidelity designs and supply the XML layouts (or Jetpack Compose code) along with any supporting assets. Acceptance criteria • Navigation is intuitive—no dead ends, ...

Saya berencana memperluas usaha meubel saya melalui platform freelance dan sedang mencari mitra andal yang dapat menangani pembuatan sekaligus produksi lemari berbahan MDF (Medium Density Fiberboard). Ruang lingkup yang saya butuhkan: • Pembuatan prototipe lemari MDF berdasarkan sketsa sederhana yang sudah saya miliki. • Optimalisasi desain untuk mempercepat proses potong, perakitan, dan finishing. • Produksi batch kecil terlebih dahulu (±10 unit) sebagai tahap uji kualitas, dengan opsi naik skala setelah lolos inspeksi. • Pengemasan aman serta detail biaya bahan, tenaga, dan estimasi waktu pengerjaan. Kriteria mitra: • Berpengalaman memproduksi meubel MDF—terbukti melalui portofolio atau foto proyek sebelumnya. • Memiliki perala...

I need someone who can program dwin display, What’s left is the code that brings it to life and links it to an Arduino-based controller here in Thailand. The job covers two tightly-coupled parts: 1. Flashing the DWIN display with my existing pages so that every button, slider, and status field behaves exactly as designed. 2. Writing the Arduino firmware that listens to those commands, drives the motors and other actuators, polls the attached sensors, and feeds live values and alerts back to the screen. All three interface tasks are in scope—motor or actuator control, sensor monitoring, and displaying real-time information and adjustable settings—so the sketch will need a clean, well-documented serial protocol that keeps everything perfectly in sync. You’ll hav...

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I need a straightforward, clickable website prototype that mirrors the clean look and smooth flow of My only goal at this stage is to showcase the concept, so high-fidelity visuals and intuitive navigation matter more than fully built functionality. Please recreate the overall structure, animations, and transitions you see in the reference site, but swap in placeholder text and imagery where real content is still pending. I’m happy with Figma, Adobe XD, or another modern prototyping tool—whatever lets me share a live link that stakeholders can open in any browser and explore without installing anything. Deliverable: • A browser-based prototype replicating the reference site’s layout, interactions, and responsiveness • Editable source file so I can iterate lat...

I have a set of finished screens in Figma and now I want to turn them into a clickable prototype that clearly shows how a user moves through the product. The goal is strictly interaction demonstration—no flashy marketing effects—so I’m looking for clean, quick transitions that make each tap feel natural. Here’s what needs motion: buttons should give instant visual feedback, navigation menus have to glide in or out smoothly, and every change from one screen to the next should feel like a native app slide or fade. Keep the animations on the simple side; subtle easing and basic opacity or position shifts are perfect. You can stay inside Figma’s Smart Animate or export the frames to Principle, ProtoPie, or After Effects if that speeds up your workflow, but the...

I’m looking for a designer who can take my performance brief and turn it into a visually striking running sneaker. The shoe must look good, but it also needs to feel great at pace; think lightweight structure, responsive cushioning, and breathable materials that stand up to daily mileage. Here’s what I expect once we start: • Initial concept sketches that translate my functional notes into 2–3 style directions • A refined design pack: tech drawings, colorways, outsole tread pattern, and material call-outs suitable for factory sampling (Adobe Illustrator or similar) • A 3D model or rendered mock-ups—Rhino, SolidWorks, or CLO3D are all fine—so the proportions and tooling are crystal-clear • Basic spec sheet with sizing, stack and drop ...

I'm looking for an experienced PCB designer to integrate several components for a control system product. The PCB will be powered by DC and should be of medium size. Key components to integrate: - SIM module - PZEM modules - ESP32 - LCD display module Ideal skills and experience: - Proficiency in PCB design software - Experience with integrating multiple modules - Knowledge of DC power systems - Ability to design medium-sized PCBs Please provide examples of past work and relevant experience.

I need a skilled engineer for jersey design and prototyping. We're at the prototyping stage, so I'm looking for someone who can take our initial designs and turn them into tangible prototypes. Ideal skills and experience include: - Expertise in textile engineering and jersey functionality - Experience with sportswear design and industry standards - Proficient in creating accurate and detailed prototypes - Strong problem-solving skills and attention to detail Please include your relevant experience in your application. Looking forward to your bids!

I'm looking for a creative and functional lunchbox design tailored specifically for office workers. The lunchbox should not only be practical but also stylish, appealing to the professional aesthetic. It should be based on Indian Craft meets modern art Requirements: - Designed primarily for office workers. - Made of durable and high-quality stainless steel. Ideal Skills and Experience: - Proven experience in product design, particularly for food containers. - Strong portfolio showcasing past work, especially in designing for the professional market. - Knowledge of materials, especially stainless steel, and their properties. Please include relevant past work in your application.

I’m developing a sleek, modern necklace built around clean geometric patterns and I need a jewelry-focused CAD specialist to turn my sketches into a production-ready 3D model. The finished file must be suitable for direct metal printing—10kt White Gold or silver are the likely candidates—so wall thicknesses, tolerances and bail geometry will have to meet current DMLS or lost-wax casting guidelines. Once the digital model is approved, I’d like you (if possible) to manage or coordinate a single metal 3D-printed prototype so I can verify weight, finish and comfort in hand. If you can’t print in-house, pointing me toward a reliable service bureau is fine. Deliverables • Editable CAD source file (STEP or 3DM) • Print-ready STL scaled to final dimens...

I want to take traditional conveyor-belt tensioning a decisive step forward by creating a completely motorized, cable-and-pulley system that adjusts itself on the fly. The goal is to maintain optimal belt tension at all times—compensating automatically for stretch, wear and changing load—so downtime, manual checks and premature belt failures disappear. My vision centres on a robust mechanical layout married to intelligent control. Integrated real-time tension monitoring, wear-detection sensors and load-variation sensing will feed a compact controller that drives the motorised actuator. Wireless control and monitoring must let operators check status or initiate overrides from a tablet if needed, and the firmware should generate predictive-maintenance alerts long before an issue...

I’m looking for a seasoned Power Platform professional who can step in for 2–3 hours every day and work side-by-side with me on real production workloads. You’ll be my go-to expert for everything from sketching out fresh Canvas apps to tightening the screws on long-lived solutions in SharePoint and Dataverse. Day to day you’ll help me: • Design and build new Canvas-based Power Apps that feel polished and performance-tuned • Keep existing apps humming—bug fixes, enhancements, refactoring, and incremental feature work • Troubleshoot gnarly issues across Power Apps, SharePoint lists/libraries, Dataverse tables, and companion Power Automate flows • Experiment with Copilot and other new platform features so we can fold AI assistance into...

I'm looking for a skilled manufacturer to create crab claw keyrings. The keyrings should be made of resin or similar but open to suggestions Ideal skills and experience: - Experience with resin casting - Ability to create intricate designs - Durable and high-quality finish - Experience in small-scale production - Experience in life like colour matching Currently make crab claw keyrings from real crab claws, looking to make ones that will be more durable in the long run

I am seeking a US-based hardware developer or electronics technician to assemble two physical prototypes of an RF-based proximity system. I have already developed the full source code and circuit schematics; however, due to a physical disability, I require a partner to handle the soldering, wiring, and physical housing of the components. Technical Requirements The project consists of two separate units: a Transmitter and a Receiver. Microcontrollers: Program and integrate 2x Arduino boards (provided/specified in schematics). Connectivity: Configure RF modules for proximity detection. Power: Integrate rechargeable battery systems (Li-Po or similar) with charging ports for both units. Assembly: Solder all components according to provided schematics. Enclosure: Mount...

I'm seeking a skilled artisan to reproduce a missing backgammon piece for a board game. The piece is originally made of stone but can be a different material but should have some weight to it. Requirements: - Experience with 3d printing - Ability to match existing piece in size and detail - Attention to detail and craftsmanship Ideal Skills: - Craftsmanship in game pieces - Familiarity with backgammon and its components

Need getting Ionic Fingerprint from Saliva Need the schematic design circuit for this, with its components

I need a compact laser-based device that can track a golf ball in real time, capture its rolling speed frame-by-frame, calculate deceleration, and then switch seamlessly to measure vertical bounce height as well as the ball’s speed just before and after impact with the ground. Rolling speed data is the top priority, yet the bounce metrics are still essential to the overall solution. Because I’ll be moving the unit between an outdoor green and an indoor practice mat, the optics and housing must cope with varying light levels, surface colours, and the occasional speck of sand or moisture. I expect millisecond-level timestamping on all speed and deceleration outputs, delivered either through an onboard display or a simple USB/BLE data stream that I can log to a laptop. Pleas...

I need a specialized WCMX wheelchair frame designed for extreme sports enthusiasts. Requirements: - Primary use: Extreme sports - Material: Aluminum - Essential features: - Shock absorption - Rear suspension - Rear grind bar Ideal Skills and Experience: - Experience in designing high-performance sports equipment - Proficiency in working with aluminum - Knowledge of shock absorption and suspension systems - Background in extreme sports is a plus

I need an embedded engineer to help safely connect a PCB to a lead-acid battery pack in series and integrate 4 external sensors (temperature, humidity, water presence, etc.). The system must read data in Arduino IDE and, if possible, send it to an existing telemetry endpoint (HTTP/MQTT). Scope: Safe wiring from battery pack to PCB Best way to connect and mount sensors Connector and grounding recommendations Simple Arduino example to read sensors and output/send data Experience with ESP32, Arduino, sensors, and battery-powered systems required.

I'm looking to develop a mechanical device with 4 adjustable roads coming in and going out from the center diagonally. The roads should have adjustable lengths, and the adjustments will be done manually. Ideal skills and experience: - Mechanical engineering - Proficiency in designing adjustable structures - Experience with manual adjustment mechanisms - Strong problem-solving skills Please provide examples of similar work done.

I'm seeking a creative professional to design a unique and effective Heron scarer that operates from inside a property, similar to a room air freshener. Key Features: - Power: Both battery and mains-powered options - Activation: Scheduled timer - Alert Mechanism: Device motion, with optional flashing lights Ideal Skills and Experience: - Experience in product design - Knowledge of electronic mechanisms - Creativity in developing unique solutions - Ability to integrate timers and motion alerts Please provide a portfolio showcasing relevant work.

Project Overview I am developing a functional aerosol accessory for graffiti artists called a Stencil Cap. This device mounts onto a spray can and reduces paint output to allow extremely fine controlled lines for stencil work and detail painting. This is a real physical product that must be engineered for functionality and manufacturability — not just a visual model. Reference images of the concept will be provided. ⸻ Core Product Function The device: • Attaches securely to a Montana 94 spray can • Restricts spray output through a small precision aperture • Redirects excess paint into an attached bottle • Includes internal geometry to control paint flow • Supports attachment of a standard plastic water bottle • Integrates engraved “FREE WAL...

I’m opening two fully-remote internship slots on ExamDuo, the learning platform I’m building to help students study smarter. As a final-year design student, you’ll take the lead on screen design in Figma—your layouts, visual states, and micro-interactions will move straight from file to production. Alongside that core work you’ll dip into user-journey mapping and quick usability checks so each release feels cohesive and intuitive. You’ll collaborate with me and my co-founder every day, dedicating roughly 4–6 hours to design tasks, async feedback loops, and short stand-ups. The role is high-ownership: if you craft it, you ship it, and you’ll see live metrics on how students interact with what you’ve created. What you get in return is a...

Seeking experienced hardware engineer to build a prototype of a wall-mounted emergency device. Specs: Form Factor: Wall-mounted, compact, durable enclosure (weatherproof if outdoor use intended). Primary Function: Transmit pre-programmed GPS coordinates to a central monitoring location (e.g., server, app, or emergency service) upon activation for real-time tracking. Transmission Methods: Primary: GSM (cellular network) for cost-effective, low-latency sending. Failover: Satellite (e.g., Iridium or Globalstar network) if GSM unavailable. Power Source: Battery-powered with optional mini solar panel for recharging. Standby Battery Life: Minimum 1 year without charging (low-power mode). User Interface: Single button for activation; 2 LEDs for status feedback. Key Features Programming: Devic...

I am bringing a new slip-on work boot to market and need a product designer who can translate my concept into a manufacturing-ready package. The boot must combine a true zero-drop platform, a generous anatomical toe box, and a lightweight composite safety toe while remaining rugged enough for daily wear in a fire station. All core qualities—durability, comfort, and full ASTM F2413 compliance—are equally important, none can be sacrificed for another. Key performance requirements • Slip-on construction that stays secure during fast response times • Wide toe box with composite cap that meets impact/compression limits yet keeps weight down • Non-slip, oil- and chemical-resistant outsole built for polished concrete and wet bay floors • Water resistance a...

My 4.5 V circuit needs a small solar panel and the proper charge-management hardware so daylight tops the battery up automatically. I’m not sure what panel voltage or wattage is best, nor which controller IC will keep the Li-ion safe—so I need your electronics expertise. Scope of work – I'll share my schematic of the existing 4.5v circuit – Select or design a charge-controller stage that handles lithium-ion chemistry, prevents over-charge/over-discharge, and outputs a stable 4.5 V rail to the load. – Provide a clear schematic, concise BOM with part numbers that are easy to source, and wiring instructions I can follow on perfboard or a small PCB. – Advise on any protection components (diodes, fuses, reverse-polarity safeguards) so the device...

A piece of iron with a colour image of a lot of sunflowers printed on it encased in resin. The whole thing should be about 2.2 inches by 22 inches and less than 10 millimetres thick. The goal is to mount it on a wall and use the flower side as the surface for magnets I will source from elsewhere to act as key holders.

I’ve already laid out a complete classroom-focused attendance sheet in Figma and now want to take it from static mock-up to a polished, teacher-ready solution. The screens target teachers and educators, so clarity, speed, and zero-friction data entry are critical. Your main task is to refine the existing design where needed and map out (or build, if you’re a developer-designer hybrid) the workflow for Automatic Attendance Marking. This includes styling the check-in/check-out interaction, visual feedback states, and any micro-animations that make daily use effortless. Deliverables • Updated Figma file with refined layouts, components, and style guide • Clickable prototype showing the end-to-end automatic attendance flow • Annotation layer or brief hand-o...

I'm looking for a skilled designer and maker to create a prototype of a men's fashion belt. Requirements: - Materials: Velvet or suede, metal, magnet, rubber - Design: Must be stylish and suitable as a fashion accessory Ideal Skills and Experience: - Experience in fashion accessory design - Proficiency in working with specified materials - Strong understanding of current men's fashion trends Please provide a portfolio showcasing relevant work.

DESCRIPCIÓN: Busco estudiante o técnico de electrónica para realizar pruebas y validación de firmware en un proyecto real basado en ESP32. El firmware ya está desarrollado y estructurado. El trabajo consiste en: * Compilar firmware * Cargarlo en ESP32 * Realizar pruebas guiadas * Reportar resultados La arquitectura del sistema y el seguimiento técnico están organizados mediante asistencia de inteligencia artificial que ya conoce el proyecto completo y va indicando los pasos a ejecutar. El técnico no tiene que diseñar el sistema, solo ejecutar pruebas y reportar. QUE SE OFRECE: Este es un proyecto real que se está preparando para salir al mercado. Además de la remuneración, se ofrece: * Partic...

I want to see a fresh, professional take on that feels unmistakably “Enterprise SaaS” while driving more conversions. This test assignment covers only four pages—Home, Services, an individual Product / Service detail page, and Contact—but it will set the tone for a long-term partnership. Here is what matters to me: • Visual direction: sleek, modern, and unmistakably professional. • Brand continuity: keep the existing blue-and-white palette and logo; everything else is open to your vision. • Goal alignment: every component should guide visitors toward a clear next step, so conversion-focused thinking is essential. • High-density content: present technical information in a minimalist layout that never feels overwhelming. Deliverables &bull...

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Description: We are looking for an experienced developer to integrate an API into our web application. The front-end is under development, and we want to connect the interfaces to back-end services via the API. Required Skills: Strong experience with REST or GraphQL API integrations Experience with [specify framework or language, e.g., React, Vue, Angular, PHP, Node.js] Good understanding of JSON exchanges and error handling Ability to collaborate with the front-end team and meet deadlines Project Details: The API is ready to be connected Collaboration will take place through weekly meetings for progress updates and adjustments Delivery deadlines will be specified during the meeting Expected Deliverables: Complete API integration with the front-end Brief documentation on the integration fo...

I'm looking for a device that can measure weight in pounds and operate underwater. It's essential that this device is powered by long-lasting batteries. Key Requirements: - The device must be waterproof and able to function accurately while submerged. - It should measure weight specifically in pounds. - Long-lasting battery life is crucial to ensure extended use without frequent recharging or replacement. Ideal Skills and Experience: - Experience in designing waterproof electronic devices. - Knowledge in weight measurement technology. - Expertise in battery technology for prolonged usage. Please provide examples of previous work and relevant experience in your bids.

I am developing VIRON, a 35cm tall AI-powered desktop tutoring robot (see reference image attached). This is a functional hardware product, not a toy. It will be built around an NVIDIA Jetson Orin Nano and includes: 10.1" QLED touchscreen (Waveshare 10.1HP-CAPQLED) 2x Logitech Brio 4K cameras (forehead + chin) ReSpeaker Mic Array v3 2x Visaton speakers (in ears) Class-D amplifier UPS power module 3x 21700 lithium batteries (in base for stability) 40mm exhaust fan Custom 3D printed bust-style enclosure I have already created a complete build guide with exact component dimensions and assembly plan (attached).

I need a polished, conversion-focused mobile shopping interface designed in Figma for both iOS and Android. The project covers every customer touchpoint—from onboarding screens through product discovery, cart, checkout, and a simple account area—so I can hand the final file straight to my developers. You’ll take my existing brand colours, typography and a rough feature list and translate them into a clean, modern design system, complete with component libraries and variant states that respect each platform’s guidelines while still feeling cohesive across devices. I value practical experience over lengthy proposals, so please highlight similar app work you’ve already shipped and note any specific strengths with Figma’s auto-layout, interactive components...

Hello, I am looking for an experienced PCB designer to complete schematic review and PCB layout for an ESP32-based industrial IoT board using EasyEDA (Collaborator mode). Scope of Work 1. PCB Outline & Mechanical Alignment The PCB outline must match an existing device layout based on measurements and connector positions that I will provide. There is no reference Gerber file, so the board outline must be recreated carefully and confirmed with me before routing. 2. Schematic Review & Improvement (Important) You must review the schematic and confirm it is electrically correct and suitable for stable operation, including: Component ratings verification Power design validation Decoupling and grounding ESP32 stability considerations LM2596 switching regulator layout considerations Identi...

I'm seeking an experienced PCB designer to create a double-layer PCB for a consumer electronics radio project. The PCB will include microcontrollers as key components. Key Requirements: - Design a double-layer PCB - Incorporate microcontrollers into the design - Suitable for consumer electronics use Ideal Skills and Experience: - Proficiency in PCB design software (e.g., Altium, KiCad) - Experience with double-layer PCB design - Knowledge of microcontroller integration - Background in consumer electronics Please provide samples of previous work and relevant experience.

I’m ready to turn a concept for a medical-grade product into a fully realized prototype, complete with a functional interior and a refined exterior. The goal is to arrive at a working physical model that meets clinical safety standards and shows investors exactly how the device will look, feel, and perform. Here’s what I already have: the concept sketches, core requirements, and preliminary dimensions. What I need from you is end-to-end support—material selection, 3-D CAD refinement, tolerance analysis, and fabrication of both the outer shell and the internal mechanism. Because the device will ultimately be used in a healthcare setting, every choice must align with FDA-acceptable, biocompatible materials and clean-room manufacturing practices. Deliverables: 1. Updated C...

I need a clear, user-friendly wireframe for a five-page website that presents my food and beverage distribution company—complete with our import-export compliance, marketing support, and brand-management capabilities. The site’s main purpose is to give visitors solid company information rather than sell products online, so the layout must lead with clarity and credibility. Page rationale • Home: spotlight a concise company overview and our key services the moment a visitor lands. • About Us: focus on our mission and values; this is the story page that explains why we exist and how we operate. • The remaining three pages will expand on services, showcase representative brands or case studies, and provide an easy-to-use contact/lead form. I’m open to y...

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我计划启动一款跨平台移动应用，希望从软件架构设计到首个可运行原型都由同一位开发者完成。 核心需求 • 应用类型：移动应用，需一次开发同时覆盖 iOS 与 Android。 • 开发框架：对 React Native、Flutter 或 Ionic 都持开放态度，只要能充分体现性能与可维护性，可由你提出技术选型方案。 我需要的交付物 1. 总体架构设计文档——包含目录结构、状态管理方案、第三方服务集成思路与未来扩展的考虑。 2. 核心功能原型——能够在 iOS 与 Android 真机运行，展示主要页面跳转及数据流。 3. 简洁的技术交接说明——说明构建步骤、依赖版本与后续继续开发的注意事项。 理想的你熟悉跨平台框架优势与局限，对移动端性能优化、包体大小控制及商店上架流程有实际经验。如果可以在沟通中分享你之前的类似作品，将有助于我快速决策。

Saya ingin merealisasikan sebuah aplikasi perangkat lunak dan membutuhkan bantuan pengembang berpengalaman untuk memulainya dari nol. Fokus utama saya adalah: • Menyusun rancangan arsitektur dasar yang jelas. • Membangun prototipe fungsional sederhana agar ide cepat bisa diuji. • Menyertakan dokumentasi singkat tentang cara instalasi dan penggunaan. Jenis aplikasi: Software application (sesuai pilihan saya). Platform akhir—Windows, Mac, atau Linux—masih fleksibel dan akan kita putuskan bersama setelah menilai kebutuhan dan teknologi yang paling cocok. Kriteria keberhasilan: kode bersih, terstruktur, dapat di-build tanpa error, dan tersimpan di repositori Git untuk memudahkan kolaborasi. Jika Anda terbiasa bekerja secara iteratif, memberi pembaruan rutin,...

Custom TWS Earbuds Prototype - Earin M-2 Miniaturization** UNIVERSITY PROJECT: Redesign Earin M-2 earbuds SMALLER to reduce ear protrusion. CURRENT SPECS: 24×15×15mm shell, 4g each, 60mAh battery, 4hr playback, BA driver, NFMI sync, touch controls TARGET SPECS: <20×13×12mm shell (33% smaller volume) • Same features or close equivalents • 1-2 FULLY WORKING prototype pairs DELIVERABLES REQUIRED: 1. New shell design (3D printed or molded) 2. Custom PCB layout for reduced volume 3. Component sourcing (mini BA driver, BT/NFMI, 40-50mAh battery) 4. Full assembly + functional testing 5. Audio test + TWS pairing validation I HAVE: • Complete Earin M-2 teardown photos • Exact measurements + target dimensions • Protrusion problem photos &bu...

I am developing a compact handheld consumer device prototype that requires integration of a rechargeable battery and small electronic module inside a custom 3D printed enclosure. I am looking for an experienced embedded hardware / electronics engineer who can help design and prototype a small, safe, battery-powered system suitable for a handheld form factor. The device will require: • Integration of a rechargeable lithium battery (3.7V or similar) • Safe charging system (USB-C or similar) • Small heating or vapor-generating element OR similar compact load component • Efficient power management and protection circuitry • Compact PCB design suitable for fitting inside a slim enclosure • Guidance on component selection and prototype assembly The enclosur...

I want to give my customer-facing multi-commerce app a fresh, premium look without touching any of the underlying business logic. The current build is React.js; I simply need the entire user interface re-imagined, delivered both as a polished design file and as ready-to-drop-in React components. Scope & vision • Mobile-first layouts that gracefully expand into desktop-first views • A white-dominant palette with subtle blue accents for a clean, modern feel • Industry-standard flows for Product Listing, Product Detail, Cart and Checkout . Liquid Glass UI feel and animation Product Listing Page I’m flexible on the exact layout—grid, list or even masonry can work—so long as the final choice suits the overall concept and performs well on all bre...