Diseño PCB Jobs

Já disponho do esquema elétrico, de uma BOM preliminar e das instruções de fabricação do módulo Waveshare ESP32-S3 Touch LCD 7". Meu objetivo é simplesmente reproduzir fielmente o hardware para uso próprio, portanto preciso que o desenho de PCB seja finalizado a partir desses documentos, com todos os detalhes de posicionamento e footprint ajustados para produção profissional. O que espero de você: • Layout completo da placa pronto para fabricação, mantendo dimensões, furos de fixação e conectores compatíveis com o original. • Arquivos Gerber (padrão RS-274X ou similar, fique à vontade para usar o fluxo que preferir contanto que seja a...

I am designing a "rectangular PCB" for a new electronic product and I now need a readily available plastic enclosure that fits it well and looks professional. Current part used in design: "1551USB3CLR" This part currently fits all requirements except that it is designed with a breaksout for USB-A connector PCB however is designed for USB-C Requirements: 1) Same size as current part with minimal implications for PCB outline changes -2) Transparant 3) 3D model and datasheet avaible 4) Avaible through a distribution channel (such as Mouser, Digikey, or Farnell) to Belgian territory This task is considered done when the part number you found from your internet search fits 1-4 or you find a professional solution to adapt current part from USB-A to USB-C breakout No re...

I already have a custom-built PCB around an ESP32, some half-written firmware, and a starter mobile app. Now I need the whole package production-ready. Hardware The board powers up, but the trace routing still worries me. I’ll share the KiCad project (Altium or EasyEDA is fine if that’s your comfort zone). Please audit the routing, tidy up signal-critical nets, and send back fabrication-ready Gerbers. Firmware Most peripherals run, yet the connectivity setup is unfinished. I need rock-solid provisioning, reconnection logic, secure MQTT transport, and OTA hooks added to the existing C/C++ codebase. App integration Once the device is talking over MQTT, wire the mobile app to those topics so live sensor data appears in real time and pairing is painless. Deliverables &b...

The goal is to design a high-voltage, industrial-grade PCB board connecting to 8 external temperature/humidity 1. Core Components & Specifications: ESP32-C3-MINI-1-N4 TCA9548A I2C Multiplexer INMP441 microphone 8x JST-XH 4-Pin Vertical Connectors (2.5mm pitch). LM5164 Buck Converter Must convert to 5V Secondary Power: AP2112K-3.3TRG1 LDO (SOT-23-5). Converts 5V to 3.3V 2- Mechanical & Layout Constraints All 8 JST-XH ports should be aligned along one edge USB Port: One USB-C port for programming and data transfer. Audio Isolation: Keep the INMP441 microphone on a separate ground plane Mounting: Include 4x M3 mounting holes 3-Deliverables: Schematic (PDF and Source files). PCB Layout (Gerber files, Drill files). Bill of Materials (BOM) with LCSC/Digi-Key part numbers. 3D STEP file of...

I need a complete electrical drawing package for a PLC-based control panel whose sole function will be automating machinery on our production floor. The layout must include all power and signal wiring, component placement, terminal numbering, and clearly labelled field I/O so our installation crew can build and commission the cabinet with zero guesswork. Please create: • A schematic set in AutoCAD (or EPLAN if you prefer) that covers incoming power, PLC rack, I/O cards, relays, breakers and safety devices • A front-view panel layout showing DIN-rail spacing, wireways and device tagging • A concise bill of materials with manufacturer part numbers All drawings should follow IEC standards, use my provided title block, and arrive as both native CAD files and PDFs. I&rs...

I’m building out a forest-fire suppression solution for a network of small cabins and cottages and I need a reliable engineering partner who can stay with the project long term. Your main job is to translate my performance requirements into clear, build-ready plumbing schematics for the exterior of each structure. Scope of work • Design complete pipe runs in metal, sized and routed for outdoor exposure and high-pressure delivery. • Integrate three discharge options—roof-mounted sprinklers, perimeter foam heads, and directional water cannons—so the homeowner can select any or all without re-plumbing. • Provide workable, code-compliant layouts that a local plumber can follow without guesswork. Typical deliverables 1. CAD drawings (DWG or similar) sh...

I have a complete schematic saved only as a PDF and I need it redrawn in OrCAD Capture 17.2. The goal is a one-to-one reproduction of the schematic itself—no BOM compilation or PCB layout work is required at this stage. Every symbol, reference designator, net name, hierarchy, and page break that appears in the PDF must open in OrCAD exactly as it does on paper, ready for future edits and electrical rule checks. Deliverables • Editable .DSN file compatible with OrCAD 17.2 • Any custom symbol or library files you create so the design opens error-free on another machine • A quick exported PDF or set of screenshots so I can compare to my original at a glance I will provide the source PDF as soon as we start. The job is complete when the new .DSN matches the original sche...

I have a complete schematic saved only as a PDF and I need it redrawn in OrCAD Capture 17.2. The goal is a one-to-one reproduction of the schematic itself—no BOM compilation or PCB layout work is required at this stage. Every symbol, reference designator, net name, hierarchy, and page break that appears in the PDF must open in OrCAD exactly as it does on paper, ready for future edits and electrical rule checks. Deliverables • Editable .DSN file compatible with OrCAD 17.2 • Any custom symbol or library files you create so the design opens error-free on another machine • A quick exported PDF or set of screenshots so I can compare to my original at a glance I will provide the source PDF as soon as we start. The job is complete when the new .DSN matches the original sche...

I need a PCB designed for a prototype. I have a 12v 1a DC motor that will need a Hall effect implemented (i do not have one to provide at this time) on the board for positioning and 12v booster. 3 buttons (on/off, ready, and safe/arm) using a 3.7v 750 mAh lipo battery. I would like to have a usb-c plug in for charging only and a jig for programming. with two sets of led's (4 for battery life stacked to show 25% battery life incriments) and another set in a ring to give time/ready status/safe/arm indication. I'd like the board to be 20mm by 50mm however, im not married to the size but would like to stick to something not too big compared to that. Key requirements: - PCB type: Open to single-sided, double-sided, or multi-layer based on your expertise - Function: Power management ...

I'm looking for a designer from Lucknow, Uttar Pradesh, India to create a modern and minimalistic schematic map. The map's primary purpose is to display information clearly. Requirements: - Include public transportation stops, a railway station, and a hospital - Use a modern and minimalistic design style Ideal skills and experience: - Proficiency in graphic design software - Experience in creating schematic or informational maps - Strong understanding of modern design principles Please provide samples of previous work.

I'm looking for an experienced electrical engineer to design a sensor-based circuit for a swinging mower door. The door will be part of a fence system and should integrate seamlessly with a radio control mechanism. Key Requirements: - Design a sensor to break a normally open circuit - Create a reliable radio-controlled mechanism for a swinging door - Ensure safe and efficient operation Ideal Skills and Experience: - Expertise in analog and mixed-signal circuits - Experience with radio communication systems - Strong background in designing and implementing sensors Please provide examples of similar work and estimated timelines.

I am assembling a 30-member core team to take India from “importer” to “exporter” of advanced computing-grade semiconductor chipsets. Our immediate mandate is chip design and architecture that can scale from laptops through high-performance desktops, with a longer-term roadmap toward mobile and household appliance variants. Scope & objectives • Complete front-to-back architecture, RTL, verification, physical design and tape-out readiness for a flagship computing SoC. • Establish robust embedded-Linux–based reference boards and SDKs. • Lay the process groundwork for future fabrication partnerships outside India while we lobby for domestic fabs. Why this is different The programme is already capitalised at ₹55 crore, earmarked for sa...

I am assembling a 30-member core team to take India from “importer” to “exporter” of advanced computing-grade semiconductor chipsets. Our immediate mandate is chip design and architecture that can scale from laptops through high-performance desktops, with a longer-term roadmap toward mobile and household appliance variants. Scope & objectives • Complete front-to-back architecture, RTL, verification, physical design and tape-out readiness for a flagship computing SoC. • Establish robust embedded-Linux–based reference boards and SDKs. • Lay the process groundwork for future fabrication partnerships outside India while we lobby for domestic fabs. Why this is different The programme is already capitalised at ₹55 crore, earmarked for sa...

I’m building a next-generation smart key for my Alfa Romeo Giulia and need an electronics/product designer who can take the idea from concept to fully tested prototype. The unit must remotely lock / unlock the car and interface seamlessly with the factory immobiliser using a secure rolling-code protocol. The key will house a small colour LCD whose sole job is to show battery status at a glance. Around that screen I’d like simple touchscreen zones for a modern feel, and the finished fob should also support true keyless entry and push-button start so the driver never has to take it out of a pocket. Core technical requirements • Secure rolling-code generation and synchronisation compatible with the OEM BCM • Integrated antenna design and tuning for both LF (passiv...

I need a skilled engineer to design and build a battery-powered electromagnet for a consumer electronics application. Key requirements: - Strength of the magnetic field - Size and weight optimization - Efficient power consumption Ideal skills and experience: - Proficiency in electromagnet design - Experience with battery-powered devices - Knowledge of power consumption optimization - Background in consumer electronics development Please provide examples of previous work and relevant qualifications.

I have a finished schematic available only as a PDF and I want it recreated in OrCAD Capture 17.2 so that every line, symbol, reference designator, hierarchy level, and page break looks identical on-screen. No bill of materials or PCB layout work is needed right now—just a faithful, editable Capture file that I can later extend and run ERC on. You will receive the source PDF as soon as we start. The job is done when: • The resulting .DSN opens in OrCAD 17.2 without missing libraries or electrical-rule-check warnings. • Any custom symbol or library files you built are supplied alongside the project so it loads cleanly on another machine. • You give me a quick comparison output (exported PDF or screenshots) that lets me verify the new schematic against the original...

I have completed the schematic for a small consumer-electronics board and now need the routing finished on a single- or double-layer stack-up. The design has to accommodate a mix of through-hole connectors and surface-mount parts, so clean pad transitions and well-planned clearances are essential. The board outline, net list, and component placement are already locked in; what remains is a tidy, manufacturable route that respects my keep-out zones and the recommended trace widths for low-current digital signals. I work in KiCad but can import Altium or Eagle files if that is your preferred environment—as long as the final deliverables include standard Gerbers and drill files ready for fabrication. Acceptable submission will consist of: • The routed PCB layout file in the...

I'm looking for a PCB designer to create a simple double-sided PCB for a consumer electronics radio application. The design involves few components and basic routing. Requirements: - Experience in designing double-sided PCBs - Familiarity with consumer electronics applications - Ability to create simple layouts with basic routing Ideal Skills: - Proficiency in PCB design software (e.g., Altium, Eagle, KiCAD, easyEda) - Attention to detail and accuracy - Good communication skills for project updates Please include examples of similar work in your bids.

PCB Designer Needed – Industrial Sensor Board I’m developing an industrial-grade sensor product and need a purpose-built PCB to act as the core of the device. The board will integrate multiple signals, handle local processing, and present clean, conditioned outputs to external control and monitoring systems. It will be deployed in electrically noisy, real-world environments, so robust design and layout quality are essential. I’m looking for someone who can take a design from concept to fabrication-ready output, including schematic capture, PCB layout, and manufacturing files, using tools such as Altium, KiCad, EasyEDA, or equivalent. What I’m looking for Strong experience with: Mixed-signal PCB design (MCU + sensors + power regulation) Power-supply design and ...

I'm looking for an experienced programmer to develop RF modules based on MTK chips. The primary functionality required is signal reception, specifically for digital signals. This project extends to firmware modification for new hardware of the F21 Pro model, adapting it to work with US bands and ensuring wide usability. Key Requirements: - Modify NV data in the firmware to suit the new chipset (likely running on LWTG) and adapt this file for US band compatibility. - Ensure the firmware can be flashed easily to multiple phones and that a complete backup source file is provided. - Conduct thorough compatibility testing for the firmware. Ideal Skills and Experience: - Strong background in RF engineering and programming. - Expertise with MTK chipsets and NV data modifications. - Experie...

I’m developing an industrial-grade robotics system and need a purpose-built PCB that focuses on high-reliability sensor integration. The board will sit at the heart of the robot, aggregating data from multiple sensors and passing clean, conditioned signals to the main controller. Here’s what I’m after: a full design cycle—from schematic capture through to ready-for-fabrication Gerbers—using a professional toolset such as Altium Designer, KiCad, or an equivalent you’re comfortable with. Robust noise-reduction practices, mixed-signal layout know-how, and careful connector selection are essential because this board must live on a factory floor with plenty of electrical interference. Deliverables I’ll review before sign-off: • Complete sch...

Developing the electronics for my new smartwatch, I now need the PCB layout completed to production-ready quality. The board must fit a typical round or squarish wearable footprint, so every millimeter of routing, component placement, and layer stack-up counts. The circuit has already been captured; your task is purely the layout. It has a main microcontroller, several low-profile sensors, and a Bluetooth module that will share limited RF-friendly real estate with the antenna. I’ll supply the schematic, mechanical envelope, and preferred connector locations as soon as we start. I’d like to partner with an engineer based in the U.S. who has already taken at least one watch or fitness tracker board through fabrication—someone comfortable balancing high-density routing...

I’m midway through a construction build and the electrical section of our contract has a few grey areas that could cause costly delays if we don’t resolve them now. I need an experienced electrical engineer who can focus on clarifying contract-related questions rather than redesigning circuits or issuing new drawings. The job is all about interpreting what’s already on paper and making sure every task, responsibility and compliance requirement is unambiguous before we break ground on the electrical phase. What I expect from you: • A detailed, plain-language summary that explains each clause affecting electrical works—design intent, installation responsibilities, inspection points and hand-over requirements. • An annotated copy of the contract highlighti...

We are building a small, agile technical team to collaborate on ongoing and upcoming client projects. We frequently receive projects in areas like WordPress development, backend systems, frontend interfaces, and AI/ML-based solutions, and we’re looking to connect with reliable freelancers who are open to working on a project-by-project basis. What we’re looking for: WordPress Developers (custom themes, plugins, performance optimization) Frontend Developers (HTML, CSS, JavaScript, React, UI/UX friendly) Backend Developers (APIs, databases, scalable architectures) AI / ML Engineers (automation, model integration, intelligent features) IoT (Hardware and PCB design) How collaboration works: Team members will be engaged when relevant projects arrive Work will be clearly de...

I am in the middle of developing several medical-grade products and now require a dedicated application that lets my engineering team lay out, route, and verify boards without relying on expensive recurring licenses. The tool must be robust enough for commercial product development and, above all, serve the strict documentation needs that come with designing electronics for medical devices. Core need • A built-in, well-organized component library that we can expand, tag with compliance data, and update centrally. Beyond that mandatory feature I am happy to consider extras such as 3-D board previews or SPICE-level simulation, but they are optional and can be discussed once the foundation is proven solid. Deliverables I expect at project close: • A fully functional install...

I am finalising the design of a residential new-build in the west of Ireland and now need a fully coordinated electrical plan. The house footprint, room schedule and architectural drawings are ready; what I’m missing is a clear set of circuit layouts, switching logic and lighting positions that satisfy current Irish regulations and make day-to-day living intuitive. Your task • Develop a complete electrical plan from my PDFs/DWG files, covering power, data, AV and lighting circuits. • Indicate socket, switch and fitting locations, load calculations, board schedules and any specialist wiring (EV charger, PV, heat-pump, smart-home). • Provide layered CAD files plus a print-ready A1 set. While the electrical drawings are the priority, if you can also refine the lig...

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I’m building a low-cost, battery-powered smart cart that performs automated checkout by weighing items and identifying them with two medium-resolution (1280×720) RGB cameras. The core controller will be an ESP32, and the cart must remain within a ₹5,000–₹7,000 per-unit bill of materials. Key elements I already locked in: • ESP32 MCU • HX711 with a 0–5 kg load cell • 6-axis IMU for motion compensation • Two RGB cameras (no depth sensors) What I need from you is an end-to-end hardware design package: 1. Component selection that balances performance, availability and the tight cost ceiling. 2. Schematic creation in KiCad, followed by a compact two-layer (or persuasive alternative) PCB layout. 3. Complete, production-ready outputs: BOM...

I need a mixed-signal circuit tailored for a communication system. The design must seamlessly combine signal modulation with accurate data conversion, forming the heart of a reliable RF-to-digital signal chain. Scope • Develop the complete schematic, integrating the chosen modulation block with high-resolution ADC/DAC stages. • Validate performance through simulation (SPICE, ADS, or an equivalent flow) and document key figures—SNR, BER, ENOB, and phase noise where applicable. • Lay out the PCB (Altium Designer, KiCad, or similar), observing best-practice mixed-signal partitioning, grounding, and impedance control. • Supply a clearly annotated BOM with part numbers that are in current production. Acceptance Criteria 1. Modulation stage meets the specifi...

I need a mixed-signal circuit tailored for a communication system. The design must seamlessly combine signal modulation with accurate data conversion, forming the heart of a reliable RF-to-digital signal chain. Scope • Develop the complete schematic, integrating the chosen modulation block with high-resolution ADC/DAC stages. • Validate performance through simulation (SPICE, ADS, or an equivalent flow) and document key figures—SNR, BER, ENOB, and phase noise where applicable. • Lay out the PCB (Altium Designer, KiCad, or similar), observing best-practice mixed-signal partitioning, grounding, and impedance control. • Supply a clearly annotated BOM with part numbers that are in current production. Acceptance Criteria 1. Modulation stage meets the specifi...

I’ve been developing on the ESP32-WROOM-32 and now need a custom board so I can move my prototype off the breadboard. The board should have ESP32, EM18, RTC, Camera, Buzzer and SD Card. I will use the gerber to get PCBA from JLCPCB or some other vendor. I will share detailed requirement on chat.

I need a custom PCI-e network interface card that combines a legacy thin-Ethernet BNC connector with modern 10 Gbps performance. The primary purpose is to let multiple devices—servers, workstations and a few printers—join the same coax segment without migrating our existing cabling. Scope • Hardware: complete schematic, multilayer PCB layout, verified BOM and Gerber files. • Firmware / Logic: MAC-level handling that sustains 10 Gbps over the coax interface, plus EEPROM configuration for plug-and-play recognition in Windows and Linux. • Driver: a clean, compile-ready driver (preferably based on an open-source 10 GbE stack) that exposes standard settings in the OS network panel. • Prototype: at least one proof-of-concept board assembled, smoke-tested ...

I need a compact, low-power RF beacon designed around the 868 MHz band for location tracking of assets that move between indoor and outdoor areas. The board must incorporate hardware-based AES encryption so that every over-the-air packet is secured end-to-end; plain-text transmissions are not acceptable.

I'm looking for an experienced PCB designer to create a single-layer PCB for a consumer electronics radio application. The PCB needs to be large, over 10 cm x 10 cm. Requirements: - Design a single-layer PCB - Size: Large (over 10 cm x 10 cm) - Application: Consumer electronics (radio) Ideal skills and experience: - Expertise in PCB design software - Experience with consumer electronics, especially radio circuits - Strong attention to detail and ability to meet specifications Please provide examples of previous work and relevant experience.

I'm looking for an experienced electrical engineer to design a sensor-based circuit for a swinging mower door. The door will be part of a fence system and should integrate seamlessly with a radio control mechanism. Key Requirements: - Design a sensor to break a normally open circuit - Create a reliable radio-controlled mechanism for a swinging door - Ensure safe and efficient operation Ideal Skills and Experience: - Expertise in analog and mixed-signal circuits - Experience with radio communication systems - Strong background in designing and implementing sensors Please provide examples of similar work and estimated timelines.

I need a detailed schematic design for an ESP32-S3 embedded system. The design should integrate various sensors and power management components. Requirements: - ESP32-S3 expertise - Schematic design for embedded systems - Experience with sensor integration and power management Ideal candidates will have a strong background in electronics and embedded systems design. Please include relevant experience in your application.

My current EasyEDA project already carries both an HDMI interface and a USB 3.0 port. The sole objective now is to push the layout into a noticeably smaller footprint without sacrificing signal integrity or changing the schematic beyond what is strictly necessary. You’ll be working inside the existing EasyEDA workspace, so please be fully comfortable with its layer management, impedance-controlled routing features, and high-speed design rules. I expect you to review component placement, swap footprints where practical, shorten differential pairs, and generally squeeze every millimetre while respecting HDMI TMDS and USB 3.0 SuperSpeed constraints. Deliverables (all via EasyEDA): • Updated PCB file that is manufacturable and clearly smaller than the original board • Fre...

I need a PCIe 16x card designed to implement x8/x8 bifurcation using the Microchip Technology PCI12000-I/ZUX switch chip (if this is the correct chip for splitting the lanes). The card should also include two OCU-Link connectors and heat-sink for the chip. It is intended to connect to a dual gpu cradle, for pc's with one pcie 16x slot and the bios doesn't support splitting. I'm unsure if this makes any difference to the design, but I specifically want to be able to pick which gpu gets sent data (if that is doable - I realise that isn't just a function of the card itself, but software programming too) I don't know if you also can design the mounting bracket, or fine-tune details about it, but I would like to be able to slot internal power supply power connection...

I need a standalone application that lets me design mixed-signal circuits from start to finish. The workflow should flow naturally from schematic capture to board layout, so the program must include: • Schematic capture with an intuitive drag-and-drop canvas. • A searchable, extendable component library that I can update without digging into code. • An auto-routing engine that can handle the complexities of both analog and digital sections on the same board. Cross-probing between schematic and layout, real-time design-rule checking, and the usual zoom/pan comforts are expected. I work on Windows today but a cross-platform codebase (Qt, Electron, or similar) would be ideal so I can move to macOS or Linux later. Deliverables • Compiled installer plus all source c...

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I have a 230 mm × 230 mm, two-layer board that will be driven by an ARM-based STM32 microcontroller. I will provide a schematic, key component part numbers(BOM) and basic placement of components on PCB; you take it from there—routing the board, and packaging everything for fabrication and assembly. Deliverables •PCB layout files • Manufacturing outputs: Gerber, drill, pick-and-place, and assembly drawings Acceptance criteria • Board outline strictly 230 mm × 230 mm, two copper layers • Clean, manufacturable routing that passes DRC and ERC in the chosen tool • Verified impedance and clearance on all high-speed or high-current traces

I need an experienced electrical engineer to take a mixed-signal concept from idea to production-ready documentation. The project is firmly centred on circuit design—there’s no power-system or purely digital work here—so I’ll rely on your expertise combining analog precision with robust digital logic. You’ll translate my functional requirements into a complete schematic, verify performance through SPICE or equivalent simulations, and then prepare a compact, manufacturable PCB layout. If you prefer Altium, KiCad, or another professional toolchain, let me know; I’m flexible as long as the final files are easy for a typical contract manufacturer to accept. Key deliverables: • Complete, well-annotated schematics • Simulation results that confir...

ESP32 tabanlı, GSM hatlı bir endüstriyel cihaz geliştiriyorum ve projenin omurgasını oluşturacak gömülü yazılıma öncelik veriyorum. Cihaz; SimCom GSM modülü, RFID/NFC etiket okuyucu, 2 analog giriş, 3 röle çıkışı, 1 PWM kanalı, ayrıca ekran ve tuş takımını içerecek. WiFi ile Bluetooth’un birlikte aktif olduğu bir mimari planlıyorum; uzaktan güncelleme / servis kolaylığı da hedefler arasında. Uygulama tarafında cihaz, sahadan GSM üzerinden yaklaşık 200 iş emri alacak, bunları sıraya koyup tamamladıkça yine GSM üzerinden sunucuya raporlayacak. İşlem güvenilirliği, güç kesintisine dayanıklılık ve hat içi (OTA) güncelleme kabiliyeti kritik. Elektronik tasarım ihtiyacım da var; şemat...

I need a complete RS-274X (Gerber) package for a keyboard whose primary purpose is everyday typing. The PCB should follow a conventional matrix layout, ready to drive a standard USB-based controller. Your job is to take my reference layout notes and turn them into: • A clean schematic that reflects the key matrix, MCU, and USB-C interface I’ll supply. • Layer-stacked PCB files in RS-274X format, including drill, solder-mask, silkscreen, and board outline. • The editable project file (KiCad or Altium—whichever you prefer) so future revisions are straightforward. I haven’t locked in the switch type yet, so feel free to route with clearances that would suit either mechanical hotswap sockets or a simpler through-hole footprint; your advice here is w...

I'm seeking an experienced hardware developer to design a prototype for an innovative wearable technology. Key Requirements: - Expertise in wearable technology design - Experience in prototype development - Knowledge of electronics and mechanical components - Strong problem-solving skills - Ability to create functional and efficient designs Ideal Skills: - Background in electronics engineering or related fields - Familiarity with industry trends in wearable tech - Proficient in CAD software for design - Experience with testing and validation of prototypes Please include examples of previous work and relevant qualifications in your bid.

I need a rock-solid wiring solution that lets my 12 V PNP proximity sensor talk to an ESP32 inside a stamping factory filled with motors, EMI and loud press strokes. Missed pulses are unacceptable, so every connection, filter and ground scheme has to be bulletproof. Here is what I already know and want: • Sensor: 12 V PNP proximity type. • Logic: ESP32 powered from the same 12 V rail through a regulator—please specify the exact regulator module and any extra filtering you recommend. • Isolation/noise control: I will be using a PC817 optocoupler as the front-end isolator. Your job is to deliver a complete, ready-to-build wiring diagram that covers the sensor, PC817 interface, regulator, decoupling components, shielding strategy and common-ground layout. Include ...

I need a physical PCB duplicated. The new PCB can use different components but should be functionally similar to the original. Requirements: - Reverse-engineer from only the physical PCB - Create a functionally similar duplicate with different components Ideal Skills: - PCB design and reverse engineering - Experience with electronic components and circuits - Ability to create detailed schematics from physical boards

I’m bringing a new IoT device from idea to working prototype and need one partner who can handle both sides of the job: the electronic circuit design and the embedded code that will drive it. All of my past work sits squarely in the embedded-systems world, so the conversation will start on familiar ground—microcontrollers, low-power design and, most critically, reliable kablosuz iletişim. Here’s what I have so far: a concept block diagram, a rough bill of materials and the user scenarios. What I lack—and what I’m hiring you for—are the production-ready schematic, PCB layout and the firmware that ties it all together. You should be comfortable selecting the right wireless module, designing the RF section with proper matching, and writing clean, well-docu...

I need three separate ExpressLRS receiver hardware designs for drone control, each centred on an SX1280, SX1270 and LR1121 and optimised for long-range links. The variants are: • a 900 MHz model • a 2.4 GHz model • a Gemini-compatible unit 900Mhz Range and 2.4Ghz dual band For each version, I expect a production-ready schematic, a clean PCB layout, and a complete BOM with manufacturer part numbers. Please pay close attention to RF front-end filtering, matching networks, and any layout considerations that will maximise link budget at these two bands. Current draw matters, but link reliability and range come first. Deliverables • Schematics (KiCad) • Fabrication-ready PCB files (Gerber/ODB++ plus drill, pick-and-place) • Annotated BOM with alternat...

I’m building a small sensor-interface board that lets an OV9281 1 MP grayscale camera stream 120 fps video to a host while an RP2040 microcontroller shares the same USB 2.0 link. The plan is to base the hub section on a CH334F (or any pin-compatible High-Speed USB 2.0 hub you prefer) so both the camera and the MCU appear as separate devices to the computer. What I need from you is a full KiCad project that I can send straight to fabrication: • A complete, error-free schematic showing the OV9281, RP2040, hub, power rails, clock sources and ESD/EMI protection. • A four-layer (or better) PCB layout with controlled-impedance differential pairs for D+/D-, matched trace lengths to the camera , and sensible placement for thermals. • Production files: Gerbers, drill, p...