Prototypage Jobs

I need a custom-designed PCB for home automation applications, built around the ESP32 DevKit V1. The PCB will control: - AC loads via Omron G5LE SPDT relays, optocouplers, and BJT drivers. - AC dimming (lamp/fan) using MOC3020 opto-driver + BTA16 TRIAC. - DC loads (like RGB LED strips) using IRF540N MOSFETs. Key features: - Integrated AC-DC power supply with bridge rectifier, dual 7805 regulators, and ESP32 3.3V regulator. - Optical isolation between ESP32 logic and high-voltage circuits. - External KF301 series connectors for AC input, AC load output, and 12V RGB outputs. - Status LEDs for debugging and system monitoring. Requirements: - Compact and small form factor - Standard KF301 series connectors - Improvement related safety - Songle high Power 30a relay replacement - 240ac to ...

We are looking for an experienced developer who can create a custom sales screen add-on for BUSY Accounting Software suitable for a commission agent business. Requirements: The sales screen should include the following fields and functionality: Series Name Party Name Item Name Consignment – Always Enabled Multiple Consignee – Always Enabled Farmer Name with Village Name Unit 1 – Bags Unit 2 – Weight Rate on Unit 2 Amount Auto-Calculation Bill Sundry – Gunnies Special Requirement: Ability to enter multiple farmers in a single sales bill. Screen should be simple, fast, and optimized for mandi/commission agent operations. Software: BUSY Accounting Software Deliverables: Fully working BUSY add-on / customization Installation support Basic docu...

Note - I want someone to make & get one machine ready for me so please bid if you can handle everything from design to manufacturing. I am developing a compact, battery-powered device that continuously feeds a roll of sticky mat across a doorway so the exposed surface always stays clean. The concept is simple: a fresh section of mat is pulled from one spindle, laid flat, and the used layer is wound onto a take-up reel. Here’s what I already know I want: • Time-based automatic control that advances the mat precisely every hour. • A low-profile, walk-safe deck suitable for hospital corridors and dusty construction entries alike. • A rigid steel frame for durability, yet light enough to remain truly portable. • Quiet, sealed gear-motor driven by a rechargeable ...

Project Title: > High-Speed Dual-Node RF Relay (125kHz / 2.4GHz / 315MHz) - Teensy 4.1 > Project Description: > I am looking for an experienced RF/Embedded Systems Engineer to design a 100% workable dual-node relay system for a keyless entry project. > The System Architecture: > * Node A (Car-Side): Must sense a 125kHz LF wake-up signal (AS3933 + ANT-125K) and relay data via 2.4GHz (NRF24L01+ PA/LNA). > * Node B (Key-Side): Receives 2.4GHz, re-transmits 125kHz (TC4420 driver + LC tank), and listens for 312/314/315MHz UHF response (CC1101) to relay back to Node A. > * Hardware: Both nodes are based on the Teensy 4.1. > Key Technical Requirements: > * PCB Design: 4-layer board preferred for EMI shielding. Must include proper ground planes and keep-out zo...

I need a complete Figma layout for a fashion-focused ecommerce site and I want it ready as soon as possible. The scope is limited to three core screens—Home, Product Listing, and Checkout—so you can stay sharply focused on perfecting each flow without distractions. The visual direction is bold and vibrant: think confident color pops, striking typography, and plenty of white space to let lifestyle imagery breathe. Because the brand targets style-savvy shoppers, every component should feel high-energy yet intuitive, translating seamlessly from desktop to mobile. What I expect from you • Pixel-perfect, responsive artboards for the three pages listed above • A well-structured Figma file with reusable components, auto-layout, and clear layer naming • Micro-pro...

I want to build a persistence-of-vision LED system that mounts on a standard bicycle wheel and shows crisp, full-color static images whenever the wheel reaches riding speed. The image should appear only at higher RPMs—cruising or sprint speeds—not while I am moving slowly or stopped. Core functionality • An addressable 256 LED spoke mounted strip driven by a small micro-controller (ESP32, Arduino-compatible, or similar) and powered by a lightweight, wheel-mounted battery. • Firmware that stores and renders static bitmaps in correct perspective as the wheel spins, synchronizing via hall-effect or magnet sensor. • A simple phone app that lets the rider pick any image, crop it to a wheel-friendly template, and wirelessly push it to the controller. There is no...

I’m building an automated live-play poker table and need the complete RFID hardware blueprint that will let software read every chip on the felt in real time. The table will hold well over 100 tagged chips at once, and I want reliable High-Frequency (13.56 MHz) reads at a maximum distance of about 10 cm from the antennas under the layout. Your task is purely on the hardware side: define an architecture that can see each chip as stacks move, bets slide, and pots grow, then pass clean data to the software team through a simple API or wired interface of your choice. Key expectations • Robust HF antenna array layout sized for a poker table, including multiplexing strategy to handle >100 simultaneous tags without collisions or dead zones. • Reader, controller, and MCU/FPG...

I’m looking for a like-minded designer to team up with me on a new design-led project. The collaboration is intentionally open-ended: I already have the concept sketched out, and I’d love to bounce ideas back and forth, refine the visual language together, and then move into production. The heart of the work is design, so expect plenty of mood-boarding, typography and colour exploration, and iterative prototyping in tools such as Adobe CC, Figma or whatever gives us the fastest creative feedback loop. If our chemistry is right, we can branch into adjacent content creation later, but the first milestone is a polished, ready-to-publish design solution we’re both proud to sign off on. You’ll bring solid visual craft, clear communication, and the confidence to cha...

Veuillez vous inscrire ou vous connecter pour voir les détails.

Se busca un especialista senior en Experiencia de Usuario (UX), Interfaz de Usuario (UI) y Optimización de la Tasa de Conversión (CRO) para realizar una asesoría integral sobre una página web existente. El objetivo principal es mejorar significativamente la experiencia del usuario y la capacidad del sitio para generar ventas y conversiones. El profesional seleccionado deberá llevar a cabo las siguientes tareas: Qué aspectos de la experiencia de usuario (UX) deberían mejorarse, incluyendo navegación, estructura, claridad del contenido y facilidad de uso. Qué elementos de la página deberían modificarse o reorganizarse para mejorar la interacción del usuario. Elaborar un mockup conceptual (no programaci&oa...

Necesito una demostración funcional de un asistente de voz pensado para mostrar a potenciales clientes empresariales cómo la IA puede gestionar citas con clientes. El objetivo es que, mediante comandos de voz naturales, el sistema: • Solicite la fecha y hora deseadas. • Confirme la disponibilidad. • Programe la cita. • Genere recordatorios automáticos tanto para el cliente como para nuestro equipo. Busco un prototipo claro y estable que pueda ejecutarse en un portátil o en la nube, con interfaz de voz (puedes integrar Google Speech-to-Text, Azure Speech, Amazon Lex o la solución que consideres más ágil). Agradeceré que incluyas un pequeño panel de administración donde se visualicen las citas r...

I’m upgrading a vehicle with a roof-mounted thermal imaging camera and need a streamlined enclosure that behaves a bit like a transformer: it must rise, give the camera a full 180° pan and at least 30° of tilt, then fold back and disappear under a low-drag cover when not in use. The core of the job is mechanical design. I’m after a concept that can be built either by 3-D printing or injection-moulding, so please keep draft angles, wall thickness and other DFM considerations in mind from the outset. Weather sealing, vibration resistance and smooth airflow over the stowed housing are essential, but I’m flexible on the exact material as long as it can survive sun, rain and highway wind speeds. I need sourcing motors, sensors, circuitry, the enclosure geometry...

We are looking for an experienced developer who can create a custom sales screen add-on for BUSY Accounting Software suitable for a commission agent business. Requirements: The sales screen should include the following fields and functionality: Series Name Party Name Item Name Consignment – Always Enabled Multiple Consignee – Always Enabled Farmer Name with Village Name Unit 1 – Bags Unit 2 – Weight Rate on Unit 2 Amount Auto-Calculation Bill Sundry – Gunnies Special Requirement: Ability to enter multiple farmers in a single sales bill. Screen should be simple, fast, and optimized for mandi/commission agent operations. Software: BUSY Accounting Software Deliverables: Fully working BUSY add-on / customization Installation support Basic docu...

I need a complete formulation for a liquid/powder, multi-purpose household cleaner that relies on biodegradable ingredients only. The end product should wash countertops, glass, and light grease without leaving residue or harmful after-effects in drains or on skin. What I am looking for: • A detailed recipe showing each ingredient, its exact percentage by weight, and its function in the formula. • Step-by-step production procedure that could be followed in a small pilot batch (5 L) and scaled to manufacturing volumes. • Guidance on sourcing the chosen biodegradable raw materials, preferably with at least two supplier options per key ingredient. • Data or references that demonstrate expected pH, viscosity, and shelf-life, plus simple tests I can run to confirm sta...

Looking for a UI/UX Designer We are looking for an experienced UI/UX Designer to review and improve our existing mobile app and web platform. The product is already live, but we want someone who can analyze the current user flow, identify usability issues, and improve the overall design and workflow. The role includes reviewing the current design, suggesting improvements, and helping us create a better, smoother user experience. If you have experience working on mobile and web UI/UX improvements,

I need five separate input-output matching networks for the MACOM CGHV270305, one for each of the following RF bands: • 30–200 MHz • 200–600 MHz • 600 MHz–1.8 GHz • 1.8GHz–4 GHz • 4GHz–6 GHz For every band the network must deliver at least 30 W across the full span while maintaining solid, stable gain. I will verify this from the final performance plots, so please present both power-output and gain data together in clear scatter-plot format. Alongside the simulation results I need production-ready DXF files of the matching PCB layouts. Keep the drawings aligned with recognised industry standards so they can move straight into fabrication without extra re-work. Deliverables 1. S-parameter models (touchstone) and any suppor...

I have the ChatGpt made mockup which show s whats needed but the design is very oldfashioned and not for 2026. Make a nice design I can use as a landing page for the mobile offering clients exactly what its there but in a moder user friendly and attracting way.

We are a small team of independent inventors who have developed an innovative hardware solution for the travel and luggage industry. We have a functional prototype and have conducted preliminary internal searches with positive results. Before we commit significant capital to formal filing, we require a Professional Patentability Search Report to validate our findings and assess the "Non-Obviousness" of our invention. Scope of Work: Comprehensive Search: Must cover global databases (PCT/WIPO, USPTO, EPO, DPMA, etc.) in addition to Indian Patent (InPASS) records. Comparison & Analysis: A detailed report mapping our core features against the claims of any "closely related" prior art found. Patentability Opinion: A professional assessment of the "probability o...

The job is to translate my concept for a movie-and-TV streaming app into a pixel-perfect, high-fidelity fireframe inside Figma, sized for the latest iPhone screens. The flow I need covered is straightforward yet must feel premium: landing screen, advanced search, title detail page, video player mock-up, and a slimmed-down profile area. Core requirements • Search first: the design must make it effortless for users to hunt for any movie or show, with predictive text and clear filter placement. • Profile scope: only a Personal Details section is required, and for now it shows the user’s Profile Picture—no watchlist, viewing history, or social links. • Streaming context: visuals should reflect buffering states, resolution badges (SD/HD/4K), and a clean player ...

I need fresh eyes on the entire customer-facing stack—mobile app, web app, and especially the marketing website—so everything feels cohesive, clean, and unmistakably modern. The marketing website: is the first stop for most users, so it gets top priority. Once that visual language is locked in, it should cascade naturally into the web and mobile apps. Check the existing marketing website to for which to first propose improvement: Here is the last APK of the mobile app: Right now the web app functions well, but the visual layer feels dated. I want a minimalist aesthetic: generous white space, a restrained colour palette, crisp typography, and subtle motion that guides rather than distracts. All work must be done in Figma so our product team can continue to iterate from the ...

I’m building a new social-networking experience and need someone who can own both the native Android code and the complete mobile UI/UX. The app will run only on Android and must be developed natively, so Kotlin or Java inside Android Studio is expected. Here’s what I’m looking for: • Translate my rough sketches and feature list into a full UI/UX flow—from user journeys and wireframes to high-fidelity, Material-You-ready prototypes. Figma, Sketch or Adobe XD is fine as long as the hand-off is clean. • Code the core social features natively: onboarding, live feed, profile, in-app chat, push-notification settings and a lightweight post editor. Modern architecture (MVVM with Jetpack components, or your preferred clean pattern) and performance optimisation...

Saya sedang mengembangkan lini mainan edukasi ramah lingkungan untuk anak-anak usia 4-7 tahun. Fokus saya adalah memastikan setiap bagian dibuat dari material daur ulang dengan proses produksi seminimal mungkin limbahnya. Yang saya butuhkan: • Konsep mainan edukatif yang menarik dan aman bagi anak 4-7 tahun. • Rekomendasi jenis material daur ulang yang mudah diperoleh serta aman (mis. plastik daur ulang bersertifikasi food-grade, potongan kayu sisa produksi furnitur, kertas daur ulang berlapis). • Sketsa desain lengkap dengan ukuran, komponen, dan cara perakitan. • Petunjuk proses produksi rendah limbah—termasuk saran pemotongan bahan, teknik sambungan tanpa lem berbahaya, dan opsi finishing non-toksik. • File digital siap produksi (CAD atau ilus...

I need a fully-functioning prototype of a portable lunchbox that can actively heat food up to 60 °C and cool it down to 4 °C at the press of a touchscreen control. The enclosure should be molded primarily from food-grade plastic; please keep the overall profile compact enough to fit in a standard backpack while leaving room for the insulation, Peltier or heating elements, battery pack, control board, and a small food compartment sensor. Key functions I expect to see working on the bench: • Touchscreen interface on the lid that lets the user toggle between Heat (60 °C) and Chill (4 °C) modes, with real-time temperature read-out. • USB-C charging input feeding an internal rechargeable battery that can run at least one full heat cycle and one full cool cycle on ...

I’m ready to turn a clear concept into a working mobile product: an all-in-one platform where people can adopt, purchase, or rehome pets, then book trusted services like grooming, training, or vet visits. The core of the app must include three pillars—pet adoption and rehoming, pet-service booking, and user profiles with ratings and reviews—so every interaction feels transparent and safe for shelters, breeders, service providers, and everyday pet lovers alike. I need someone who is comfortable building full-featured apps on no-code/low-code platforms (think FlutterFlow, Adalo, Bubble, Glide or a comparable tool) and structuring a scalable database that supports listings, availability calendars, chat, payments, and location-based search. Both iOS and Android releases ar...

I’m developing a new line of physical games and need fresh, viable concepts specifically for adult board-game enthusiasts. I’m interested in original themes, clear mechanics, and production-ready ideas that can move quickly from paper to prototype. Here’s what I’d like from you: • 3–5 complete board-game concepts aimed at adult players (18+). • For each concept: an engaging theme, a concise one-page overview of the core loop and victory conditions, a turn-by-turn example, recommended player count, estimated play time, and a detailed component list. • Brief notes on manufacturing feasibility—materials, unique pieces, or cost-saving considerations. • Optional but appreciated: sketches, simple PnP layouts, or links to inspiration ...

Description Of Project - HRID-AI is a low cost handheld device aimed at estimating ejection fraction using multimodal biosignals (ECG, seismocardiography, and cardiac acoustics). It uses a combination of biosensors to detect abnormalities in ECG, presence of abnormal heart sounds and their interpretation as well as usage of seismocardiographic signals to provide an estimate of Ejection Fraction. The principle has been verified through multiple studies done in reputed institutions The goal is rapid point-of-care triage for echo referral in emergency and low-resource settings in patients of Heart Failure with Reduced Ejection fraction We need your support, skills and expertise for sensor integration, embedded design, signal acquisition. Current Status- We have so far been able to dev...

We need an electronics engineer to implement a PCB design based on an existing schematic for a renewable energy monitoring project. The system measures electrical parameters from multiple sources including a solar panel, wind turbine, battery, and inverter output. The schematic already exists in PDF format and includes components such as Arduino Nano Every, MCP3903 ADC, ADS1115, WCS1600 current sensors, and HC-12 communication module. The task is mainly to follow the existing schematic, verify the design, and create a manufacturable PCB layout.

I need a custom single/multiple-turn loop antenna designed and working physical prototype fabricated. The target band is low frequency (LF), and the antenna will be used exclusively for near-field coupling applications. What I’m expecting from you is a complete, start-to-finish service: H-field antenna designed according to specified, fixed dimensions, selection of suitable conductor and core materials (as well as tuning capacitors or ferrite sheets if required), then the actual fabrication of a working custom prototype that I can test using my own setup. Deliverables • Simulation files (HFSS, CST, or similar) showing impedance, Q-factor and coupling coefficient at the target LF band • Manufacturing drawings or Gerber files if a PCB-based loop is the better approach ...

I’m building a free-standing kinetic installation that tells a historical story through moving mechanical elements rather than costumed characters or electronics-heavy animatronics. The prop will rely on gears, cams, counterweights, and simple motor drives to create repeated, reliable motion sequences that feel period-authentic while still meeting modern safety standards. Here’s what I need from you: • Concept development that blends accurate historical styling with eye-catching, repeatable movement. • Mechanical schematics or CAD models (SolidWorks, Fusion 360, or comparable) showing linkages, drive systems, and fastener choices. • A concise bill of materials noting readily available components and period-appropriate finishes. • Assembly guidance and, if ...

I'm looking for a skilled craftsman to build a custom hard case for a small guitar so it can travel safely in my stow away luggage on a plane. Lightweight but strong! Requirements: - Material: lightweight but strong (eg plastic, Carbon Fibre) - Interior Lining: Foam - Closure Mechanism: Magnetic The guitar case would be approximately 94 x 23 x 7cm but not quite a rectangle shape. Its a MARTIN BACKBACKER GUITAR Ideal Skills and Experience: - Experience with plastic or carbon fibre construction - Knowledge of custom case design - Attention to detail and craftsmanship Please provide examples of similar work.

I’m commissioning a life-size, wearable snake that drapes from my waist, coils up my torso, and settles its head on one shoulder. The body should be built from black faux fur or a soft plush, yet finished so the surface feels textured and scaly rather than smooth. Inside, I’ll need just enough internal support to keep the coils looking crisp while still allowing me to wrap and adjust the snake easily. A touch of weight—beans, pellets, or similar—will help it stay put on my shoulders without constant readjustment. The head is where realism matters most. I’d like glass or high-quality plastic eyes in a vivid red, set into a sculpted face with defined scales and sharp, pointed fangs. The mouth can be slightly open or closed; whichever better shows off the fangs ...

We are looking for a creative Board & Card Game Designer to develop original tabletop games from concept to final design. The role includes creating engaging game mechanics, writing clear rule sets, and designing the visual style of the games. Responsibilities Develop original board, card, and wooden tabletop games Design game mechanics, rules, and gameplay systems Create clear and structured rulebooks Design or collaborate on graphics, layout, and visual identity Adapt games for physical production (cards, boards, wooden components) Requirements Experience in tabletop or board game design Strong understanding of game mechanics and player experience Ability to create visual concepts and game layouts Experience with graphic design tools (e.g., Illustrator, Photoshop, Figma) is a plus Cr...

I am looking for a skilled 3D sculptor or character artist to create a stylized fantasy doll head for a handmade collectible art doll I am designing. The sculpt will be used for 3D printing and resin casting, so the model must be clean, printable, and suitable for molding. I will provide a reference image of the character design, and the sculpt should closely match the overall proportions, expression, and aesthetic of that reference. The character is a whimsical fantasy lantern forest child with a soft storybook aesthetic. The face should feel gentle, curious, serene, and slightly magical. Doll Scale The final doll will be approximately 10–12 inches tall. The head should be approximately 70–75 mm tall (about 2.75–3 inches) and slightly large in proportion to the body t...

I’m building an educational, IoT-enabled play mat designed especially for children aged three to five. When a child steps, taps or sits on different zones, I want the mat to recognise the interaction and trigger playful learning responses—lights, sounds or messages sent to a companion mobile app. Here’s what I need from you: • Hardware logic so each zone on the mat can reliably detect pressure or touch and send that data wirelessly. • Firmware that converts those raw sensor readings into tidy, low-latency events the app can understand. • Simple proof-of-concept software (mobile or web) that shows the events, plays a sound or displays a visual so I can demo the core learning activities. I’m open on the exact platform; ESP32, Raspberry Pi Pico W ...

Description Of Project - HRID-AI is a low cost handheld device aimed at estimating ejection fraction using multimodal biosignals (ECG, seismocardiography, and cardiac acoustics). It uses a combination of biosensors to detect abnormalities in ECG, presence of abnormal heart sounds and their interpretation as well as usage of seismocardiographic signals to provide an estimate of Ejection Fraction. The principle has been verified through multiple studies done in reputed institutions The goal is rapid point-of-care triage for echo referral in emergency and low-resource settings in patients of Heart Failure with Reduced Ejection fraction We need your support, skills and expertise for sensor integration, embedded design, signal acquisition. Current Status- We have so far been able to dev...

I need a self-contained unit that lets me key a number on a small touch screen and see that exact value appear instantly on a free-standing LED numerical tower. The goal is true plug-and-play functionality: once mains power is connected, the system should be ready without additional setup, drivers, or calibration. Core requirements • Input: a touch-screen number pad that accepts whole numbers (ideally up to four digits). • Display: an LED tower that shows the number in bright, easily readable digits; the tower must refresh in real time as I enter or change the value. • Form factor: bench-top or floor-standing, compact enough for shop-floor use, with a single power lead and a secure data link between screen and tower. • Reliability: stable operation for 8+ hours...

Estou desenvolvendo um dispositivo médico e preciso do apoio de um engenheiro biomédico — idealmente brasileiro — que domine validação de função, desempenho, segurança, conformidade, ergonomia e usabilidade. Meu maior foco, neste momento, é a fase de prototipação e testes. Quero alguém que: • Avalie o protótipo de ponta a ponta, apontando ajustes técnicos para garantir precisão de leitura e performance contínua. • Conduza ou oriente testes de segurança elétrica, biocompatibilidade e conformidade com normas ANVISA / ISO. • Analise ergonomia e usabilidade com usuários-alvo, gerando recomendações claras de redesign quand...

I need a complete concept-to-production design for a vending machine that can sell phones, tablets, gaming consoles, laptops and related accessories while also accepting returns through built-in lockers. The scope covers mechanical layout, locker integration, electronics for inventory control and payment, plus industrial styling that fits a standard retail footprint. Beyond the CAD and schematics, I require a fully costed bill of materials. This means identifying real-world suppliers, part numbers, lead times and unit pricing so we can estimate manufacturing cost at scale and set viability targets. Where multiple component choices exist, highlight the trade-offs (e.g., reliability versus unit price) rather than listing every option. Please include a detailed project proposal that outline...

Saya ingin membangun sebuah aplikasi produktivitas ringan khusus iOS. Fokusnya adalah membantu pengguna membuat daftar tugas, menandai pekerjaan selesai, dan melihat statistik harian sederhana. Untuk tahap awal ini saya membutuhkan: • Sketsa alur layar (wireframe low-fidelity) yang memperlihatkan navigasi inti. • Draft desain antarmuka lengkap dengan panduan warna dan tipografi standar iOS. • Prototipe fungsional dasar di Xcode/Swift berisi: halaman daftar tugas, formulir tambah tugas, tombol centang, serta tampilan ringkasan. Kode harus jelas, terstruktur, dan mengikuti Human Interface Guidelines Apple. Setelah saya bisa menguji prototipe melalui TestFlight, kita akan membahas pengembangan lebih lanjut. Sertakan tautan ke aplikasi produktivitas iOS atau cuplikan...

Contest Description We run a large Dutch e-commerce store for professional kitchen equipment: We are looking for a modern redesign of our category / product listing page. Our current design works functionally, but it looks outdated, crowded and not very modern. We want a cleaner, more organized and more premium design that improves usability and conversions. A screenshot of the current page is attached. The winning design should be delivered in Figma. What needs to be redesigned The category / product listing page, including: • Product grid • Product cards • Filter sidebar • Sorting options • Pagination Our goals We want the page to feel: • Modern • Clean • Well organized • Easy to scan products quickly • Professional B2B Think...

I’m working with a physical, consumer-facing product that has already reached a functional prototype. At this stage I need a product designer who can take the rough build and turn it into a design that is attractive, user-friendly, and ready for mass production. Here’s what I’m looking for: • Translate the current prototype into fully detailed 3D CAD, paying attention to ergonomics, tolerances, and ease of assembly. • Optimise material choices and manufacturing methods so the design can move straight into tooling without costly re-work. • Produce photorealistic renders that highlight key use-cases for investors and marketing. • Supply final production files (STEP or IGES, plus 2D drawings with dimensions and call-outs) along with a concise desi...

I need a skilled engineer to design a stainless steel brake disc for motorcycles. The design should focus on preventing brake failure and ensuring maximum safety. Key requirements include: - Expertise in brake system design, specifically for motorcycles - Proficiency in using stainless steel as a primary material - Knowledge of material properties and their impact on braking performance - Ability to create detailed design specifications and CAD drawings - Experience with testing and validating brake components Ideal skills and experience: - Engineering degree, preferably in mechanical or automotive engineering - Previous experience in designing braking systems or components - Strong analytical skills for performance evaluation - Familiarity with industry standards and safety regulations ...

I am looking for an embedded systems developer to write Arduino code to communicate with the MCP3903 energy measurement IC from Microchip using the SPI interface. The goal of the project is to read voltage measurements from three channels of the chip and output the values through the Arduino serial monitor. Hardware: Arduino board (Arduino Uno or compatible) MCP3903 analog front-end IC SPI communication Requirements: The code should: Initialize SPI communication between Arduino and the MCP3903. Configure the MCP3903 registers correctly for basic operation. Read measurement data from the following channels: CH0 CH1 CH2 Convert the raw ADC data into readable voltage values (or at least raw measurement values). Print the measured values continuously to the Arduino Serial Monitor...

I have already drafted a full specification for a simplified television remote control aimed at older users, complete with ergonomics, button layout, and overall product vision. While I finish the patent application, I now need a skilled partner to bring the electronics and software to life. On the hardware side, the priority is circuit design. I will share detailed functional blocks, power-budget targets, and regulatory constraints; you would translate these into a clean schematic that is ready for board layout (I will also welcome help on the actual PCB routing once the schematic is locked). For software, I need both the embedded code that will run on the microcontroller and the on-screen user interface logic that appears on the TV. Simplicity and reliability for elderly users are the ...

I’m building a mobile app focused squarely on personal financial management, and the first milestone is a rock-solid expense-tracking module. The core goal is to let users record, categorize, and review their day-to-day spending from any iOS or Android device. Here’s what I need right now: • Intuitive screens for adding expenses on the go—receipt upload, amount, category, date, notes. • A clean dashboard that summarizes spending by category and shows simple charts. • Secure local storage plus cloud sync so data is never lost. • Lightweight user authentication (email or social sign-in). • Codebase in React Native or Flutter—whichever you’re most comfortable shipping to both stores quickly. While the priority is expense tra...

**Project Title:** ESP32 Based Educational Robotics PCB Design **Project Description:** I am looking for an experienced PCB designer to design an educational robotics development board. The board will be used for teaching robotics, IoT, and programming to students . The board should be based on an ESP32 module and must integrate multiple components and connectors so students can easily connect motors and sensors. The board should also be compatible with Scratch, so students can control the hardware using Scratch blocks. The freelancer should also create the required firmware or extension file needed to connect the hardware with Scratch. **Key Features Required:** 1. ESP32 module for WiFi and Bluetooth connectivity 2. Motor driver for 2 DC motors 3. Battery connector for rechargeable L...

Project Brief: Kinetic Pulse PCBA 1. Core Functional Requirements Power Input: Must accept AC input from a linear induction coil (approx. 3,000 turns). Energy Storage: Must use a Supercapacitor (1.5F - 2.0F / 5.5V) as the sole energy storage—No chemical batteries. Power Regulation: A boost converter must provide a stable 3.3V rail even as the capacitor discharges down to 0.7V. Power Efficiency: The entire system must be "Nano-power." Total standby/idle current must be < 1µA to ensure the device holds a charge. Timing Logic: An internal timer must trigger a 100ms audible alert (Buzzer) every 40 seconds. Pressure Sensing: The system must interface with a Force Sensitive Resistor (FSR). State 1: Visual Green LED alert when pressure is applied (> 50g). State 2: Visu...

Looking for a designer to develop a special **PASTA TABLE**. My company focuses on teaching **traditional Italian pasta making** in Milan ([]()). We would like to renovate our main working table — this is where the magic happens, where our guests knead and craft fresh pasta together. **Specifics** **Surface:** Ideally the table surface should be wood, but we are open to considering other materials. **Dimensions:** 6m x 1m. I need to be able to change the length of the table depending on the number of guests and the type of event we are planning — from a minimum of 4m up to 6m. If the table is made in modular blocks (as it is now), we want to avoid guests working directly over joints, otherwise flour could pass through or get stuck. For this reason, please consider that eve...

I need an industrial product designer to create a line of disposable cutlery made from polypropylene (PP). Key Requirements: - Design for disposable food boxes - Use of PP plastic - Focus on functionality and cost-effectiveness - Consideration for ease of manufacturing Ideal Skills & Experience: - Expertise in designing plastic products - Knowledge of polypropylene properties and processing - Experience with disposable product design - Strong CAD skills and prototyping experience

I own an original KeyMouse Track, now discontinued, and would like to bring it back to life. Reference product: Intended production size: Only for personal use at this point. However, where possible and cost-effective, design decisions should consider future scalability to larger production runs. Available artifacts: - STL Files (I don't know whether these files are suitable for manufacturing, or some earlier draft): - Assembly instructions: - Original PCB which can be purchased: - Track ball sensor module image and description: - Custom-made wrist extension CAD files: Deliverables: - Deliver cleaned and validated STL files suitable for reliably producing a functioning unit via 3D printing. with the external wrist extension integrated - Full reverse eng...