PCB Layout Jobs

I am building a new solar-hybrid inverter around an Infineon reference design and need an experienced technical advisor who can work with me on-site in Bangalore, part-time, through the entire prototype cycle. Your guidance is required across hardware design, firmware development, hardware fabrication, integration and final testing. Most of the base schematics and application notes from Infineon are in hand; what I need now is a sharp eye and skilled hands to adapt those documents to my exact power ratings, oversee PCB layout iterations, supervise fabrication, bring the boards up safely, write and debug the control firmware, and validate the finished prototype under load. Expect plenty of hands-on lab work—oscilloscopes, power analyzers, thermal cameras, rework stations—plus...

I’m looking for a senior technologist who can sit with my Bangalore-based team and guide us through the full hardware-software stack of our new UAV prototype. The work is hands-on and spans three pillars: hardware design, embedded-software bring-up, and end-to-end integration testing. On the hardware side you’ll dive into sensor integration, power-management architecture, and lightweight frame design, checking schematics in Altium/KiCad, reviewing BOM choices, and helping us close EMI and thermal issues. In parallel, you’ll pair with our firmware engineers to refine drivers, control loops and companion-computer interfaces (C/C++, Python, PX4 or ArduPilot experience is ideal). Finally, you’ll shape and run a systematic integration-test plan—bench, HIL and flig...

I need a clear, ready-to-build circuit diagram that closes the voltage feedback loop on the DC bus of an off-grid inverter running in the 12 V – 24 V range. The diagram must show how a suitable voltage sensor feeds a microcontroller so the firmware can keep the bus voltage within safe limits and trigger protective actions when it strays. Please size all resistive dividers, isolation devices (if required), and any signal-conditioning stages so the microcontroller’s ADC receives a clean, scalable signal. What I expect from you • Complete schematic, preferably drawn in KiCad or Altium, showing the microcontroller, voltage sensor path, power supply rails, and any filtering or isolation you recommend. • Short bill of materials with part numbers that are actually ...

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I am developing a wearable electronic device for sports such as padel or tennis that allows players to easily record points during a match. The system consists of a small button worn on the player’s shirt that communicates wirelessly with a courtside speaker. When the button is pressed, the system updates the score and announces it audibly. Current Stage: Prototype development. The goal is to design a functional, low-cost, and manufacturable electronic system that can later be scaled to production. System Components: 1. Wearable Button Unit * Small, lightweight device clipped to the player's shirt * Single push button input * Bluetooth Low Energy (BLE) communication * Rechargeable battery (Li-Po) * USB charging circuit * RGB LED status indicator: * Gr...

I need a complete PCB solution for a BeagleBone-based light pod whose primary purpose is, quite simply, “Lightpod.” The concept is already proven on a breadboard; now I want a production-ready board that consolidates the BeagleBone, LED drivers and all supporting circuitry into a compact, manufacturable form factor. What I expect from you • Schematic capture that respects BeagleBone design guidelines and pin-muxing constraints • Optimised PCB layout compatible with standard four-layer fabrication, mindful of thermal paths for high-current LED channels • Clean, clearly annotated BOM with sourcing that avoids hard-to-find parts • Manufacturing outputs (Gerbers, drill files, assembly drawings) plus original design files so I can iterate later in KiCa...

I need a clean, production-ready multi-layer PCB for a new consumer-electronics device. The board will host an average number of components—nothing exotic—but the layout must still respect typical high-speed, signal-integrity, and power-distribution guidelines so the final product performs reliably and passes EMC tests the first time. You will begin from my preliminary schematic and functional block diagram, refine component selection where needed, then build out the full stack-up and routing. I’m comfortable with Altium Designer, KiCad, or Eagle files, so choose whichever platform lets you work fastest; just note that I will need fully editable source files at hand-off. To keep the process straightforward, here’s what I expect at each stage: • Updated schema...

I’m building a compact embedded platform that runs from a single 12 V supply and I need a purpose-built PCB to act as the system’s brain. The board has to host a microcontroller at its core, interface cleanly with several sensors, and drive multiple actuators, all while keeping noise low and layout tight. Here’s what I’m looking for: • Complete schematic capture showing microcontroller, sensor inputs, actuator drivers, power-conditioning and protection circuitry • PCB layout ready for manufacture (Gerber/ODB++ files, drill, pick-and-place, clear layer stack details) • Bill of materials with part numbers that are currently available from major distributors • Basic power-up simulation or design rule check report proving the 12 V rail and o...

I need a production-ready circuit and compact PCB built around the ESP32-C6 for an IoT device that must run efficiently on both a small solar panel and a rechargeable battery pack. Wi-Fi connectivity is mandatory, and every part of the design has to prioritise ultra-low power consumption so the unit can sit in deep-sleep most of the day yet still wake to trigger a miniature solenoid valve on command. Power architecture The board should accept solar input (≈5-6 V) and seamlessly switch to a lithium cell when sunlight is unavailable. Please integrate an MPPT-style charge controller, battery protection, and a low-loss power-path so the ESP32-C6 always sees a stable 3 V3 rail. Current draw during sleep should stay well under 30 µA. Control section • ESP32-C6 in QFN32 pac...

**Title:** IoT Hardware Engineer / PCB Designer Needed for Smart Water Tank Level Monitoring Device **Description:** We are looking for an experienced **IoT hardware engineer / PCB designer** to help us design a **smart water tank level monitoring device** for residential, building, and remote-site use. The product will measure the water level inside a tank and send alerts when the level becomes **low**, **high/full**, or when there is a **sensor/device issue**. We are seeking a professional who can take this from **system architecture and component selection** to **schematic, PCB layout, and manufacturing-ready files**. **Preferred product direction:** * Non-contact level sensing (preferably **ultrasonic**, top-mounted) * **Wi-Fi version** for homes/buildings * Optional **NB-IoT / LT...

I want to bring a small, ESP32-powered toy drone from concept to first lift-off. The goal is purely recreational: a fun flyer that can be controlled from a smartphone rather than a conventional RC transmitter. Core functionality must include reliable auto-stabilization so even a beginner can keep the craft level. Here’s what I already have in mind: • Flight controller: ESP32 (your choice of dev-kit or custom PCB) • Sensors: a compact 6-axis IMU such as MPU6050/ICM-20689 for attitude data • Motors & ESCs: typical micro-quadcopter class, but I’m open to your sizing suggestions • Firmware environment: Arduino IDE or ESP-IDF—whichever you can deliver faster and maintainably • Mobile control: a lightweight Android/iOS app communicating via...

I have a completed audiophile phono-preamp in ExpressPCB+ — schematic and two-layer board — that I now need recreated in Fusion 360 Electronics. The circuit holds 33 unique parts (about 120 total) and follows a simple structure: one power-supply section repeated six times and two identical audio channels. Because of this repetition, copy-and-paste inside Fusion should accelerate the job. All manufacturer part numbers are ready to drop straight into the new library, so you will not have to hunt for footprints or symbols. Trace widths and clearances can remain at Fusion’s defaults; no additional design-rule tuning is required. We will also keep the layer count exactly the same as in the ExpressPCB+ file. Mechanical constraints are critical: • Overall board outline m...

I need a matched transmitter-receiver pair built around a 200 kHz carrier that can cover at least 40 m in open air and recognise simple OOK (On-Off Keying) pulses reliably. The intended application is “Radio Frequency RF”, so there is no higher-level protocol to worry about; raw, clean carrier switching will do the job. Everything will be mounted and operated outdoors, so the design must tolerate ambient temperature swings, sunlight and occasional moisture without detuning or loss of sensitivity. Both TX and Rx are separate not transceiver and battery powered with minimum 2 days running time. What I am looking for • Circuit-level design of both the low-power transmitter and the super-regen/ super-het (designer’s choice) receiver, including complete schematics, PCB...

I need a compact, self-contained light show for a fan that will be used purely for entertainment. The blades already have addressable LEDs installed; what’s missing is an eye-catching sequence of color-changing effects and the code or controller setup that drives them. Here’s what I’d like from you: • Design several smooth, vivid color-changing patterns that look great while the fan is spinning. • Provide the controller code (Arduino, ESP32, Raspberry Pi Pico, or any platform you prefer) together with a clear wiring diagram so I can replicate the exact results on my unit. • Include simple instructions for adjusting speed, brightness, and palette so I can fine-tune the mood for different occasions. The primary goal is an engaging visual experience, b...

I need a complete design—and, if you can, a prototype plan—for an automated potato sorter that separates crop primarily by size but can also flag colour blemishes, shape inconsistencies and any bruising or damage. Target throughput is about 10 tonnes per hour, so the system has to run fast and stay reliable in a dusty, damp pack-house environment. The core assignment is the engineering: conveyor layout, singulation, sizing mechanism (rollers, screen, optical gates—whatever you know will achieve clean size grades), plus a vision or sensor module that triggers reject lanes for defective tubers. I’m flexible on whether you prefer PLCs, Arduino-class micro-controllers or an industrial PC, so long as replacement parts are easy to source and software is clearly documente...

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I have a working PoE injector board in hand and need a clear, engineer-level breakdown of how it does what it does. Your analysis should cover three areas: • Power-delivery mechanism • Data-transfer process • Component layout and individual part functions All I can supply right now are high-resolution digital images of the board—there are no original schematics or datasheets—so the first task is a reverse-engineering exercise. I expect a concise report that reconstructs the schematic as far as practical, explains each power and data path, identifies every major component, and highlights any design choices that stand out. Please include recommendations on performance limits, potential failure points, and where improvements could be made. A well-annotated ...

Project Overview: I am looking for an expert Embedded Systems Engineer to design and build a single, high-reliability storage device meant to last 50 years without repair or maintenance. This is a "set it and forget it" archival project. Scope of Work: Hardware Design: Select an Automotive-Grade MCU (AEC-Q100, e.g., NXP S32K or ST SPC5 series). Implement Dual-Redundant 256GB Industrial pSLC eMMC chips (mirrored for 128GB usable space). Design a 4-layer PCB with ENIG (Gold) finish. Use Ceramic Capacitors (MLCC) only; strictly avoid electrolytic/tantalum. Hard-wire a gold-plated USB-C pigtail directly to the PCB. Firmware Development (Bare Metal): Implement USB Mass Storage Class (MSC) for driverless PC compatibility. Develop RAID-1 Mirroring logic between the two eMMC chips. Imple...

Hello, We have completely redesigned the machine concept and working methodology. The new approach is aligned with a regular bean-to-cup coffee vending machine, upgraded for specialty coffee output with dual ordering capability (two drinks simultaneously) using two displays and two side-by-side cup dispensing stations. The system has been simplified significantly by removing CNC/gantry, conveyor, and robotic mechanisms, and is now based on a static modular architecture with pump + pipe-based fluid delivery. --- UPDATED SYSTEM OVERVIEW: • Dual cup dispensing system (left & right) • Two independent serving positions for parallel output • Two user interfaces (dual ordering screens) • Centralized internal modules: - Coffee grinder + automatic brew group (piston-...

I'm converting my food truck's power system from acid lead batteries to lithium. I need an experienced engineer to assist with the installation of a new converter and ensure the wiring is suitable for the new power source. Key tasks: - Install a converter that has a power of 5kW, suitable for a 60V battery input, and can charge the batteries with 240V mains voltage - Partially rewire to accommodate the new system (assume thicker wires now needed) This is for an electric food truck. Simple wiring is already in place & visible. Batteries are being built and installed by experts i SE5, London. Can be flexible on timings. as I need to source the converter. Ideal skills and experience: - Electrical engineering background - Experience with food truck or vehicle power systems ...

Project Title: ESP32-Based Smart Healthcare Monitoring Device PCB I need a custom PCB design for a portable patient health monitoring system. Main Controller: * ESP32 Dev Module (30-pin) Power System: * 18650 Li-ion battery * TP4056 charging module with protection * MT3608 boost converter (output 5V) * On/off power switch * USB charging port (Type-C or Micro-USB) * Proper power routing for stable 5V and 3.3V Sensors: * MAX30102 (Heart Rate + SpO2) using I2C * SDA → GPIO21 * SCL → GPIO22 * DS18B20 Temperature Sensor * DATA → GPIO4 with 4.7kΩ pull-up resistor Display: * 2.8” or 3.5” TFT Touch Display (ILI9341 + XPT2046) * SPI pins: * MOSI → GPIO23 * MISO → GPIO19 * SCK → GPIO18 * Control pins: * TFT_CS → GPIO5 ...

I'm seeking an electrical engineer with expertise in renewable energy systems to assist in validating designs and finalizing engineering plans for a hybrid power system. Must have experience with VICTRON ENERGY Components. The system will primarily integrate solar power with an LP/gas generator, and potentially incorporate hydropower. Key Tasks: - Validate and refine design for efficiency - Specify wire gauging - Ensure cohesive system design- Review and validate system concepts - Perform load analysis and system modeling - Design hybrid power system architecture - Size and integrate battery storage systems - Integrate generators with solar and storage - Develop electrical schematics and diagrams - Ensure compliance with U.S. electrical codes and interconnection requirements - Prep...

I need a compact, student-friendly iron-repulsion electromagnet that can serve as the centerpiece of a science-fair exhibit. The core requirement is a coil system that pushes a small iron slug or plate away with visibly adjustable force. Key functions to build in: adjustable repulsion strength (a dial or digital control that varies current), wireless or IR remote control for hands-off demos, and a simple safety lock that cuts power instantly if something behaves unexpectedly. Because the device will be handled by middle- and high-school students, absolute electrical safety and clear operating instructions are essential. To make the project reproducible, I will need: • A working prototype capable of at least three distinct strength settings and a demonstrable off-site trigger v...

I'm seeking a skilled project designer for a commercial electrical project. The work involves creating detailed designs using KiCad. Key requirements include: - Proficiency in KiCad - Experience with footprints, Gerber files, and schematics - Background in commercial electrical systems Ideal candidates will have: - Relevant certifications - Strong attention to detail - Ability to meet deadlines Please provide samples of previous work and a timeline for completion.

I need an experienced electrical engineer to review a re-feed and transformer replacement plan submitted by a company. Key tasks include: - Review for general accuracy and feasibility - Ensure compliance with codes and standards - Verify load calculations, connection, and wiring diagrams - Provide both a detailed report and a summary Ideal skills and experience: - Professional engineering license - Experience with transformer and re-feed projects - Strong knowledge of electrical codes and standards - Ability to deliver comprehensive reports

I already have an ESP32-C3 prototype of AutoSmear running reliably on a hand-wired board, but now it is time to turn that lab-bench tangle into a production-ready PCB. Compact layout is my top priority: the board must fit inside the existing enclosure while leaving room for future shielding and airflow. Just as important, the A4988 motor driver needs to be integrated cleanly so the stepper that moves the blood-film spreader glides without vibration or jerks. What I will hand over to you • Tested firmware ( ESP32-C3) • Current schematic, wiring diagram and BOM • Mechanical constraints for board outline and mounting points What I need back • Updated schematic reflecting any refinements you suggest • Space-efficient multilayer PCB layout with proper ground...

We are looking for an experienced PCB Designer / Electronics Consultant with proven expertise in ATEX / IECEx standards to support the design and development of a PCB intended for use in hazardous (explosive) environments. The selected candidate will be responsible for ensuring that the design complies with relevant standards and can successfully pass certification requirements. Scope of Work: Design and review PCB in compliance with: ATEX Directive 2014/34/EU IECEx Scheme IEC 60079 standards (especially 60079-0 and 60079-11 for intrinsic safety) Provide guidance on protection methods (e.g., Intrinsic Safety – Ex i, Increased Safety – Ex e, etc.) Ensure proper implementation of: Creepage and clearance distances Energy limitation and fault tolerance Component selection and de...

We are looking for an experienced PCB Designer / Electronics Consultant with proven expertise in ATEX / IECEx standards to support the design and development of a PCB intended for use in hazardous (explosive) environments. The selected candidate will be responsible for ensuring that the design complies with relevant standards and can successfully pass certification requirements. Scope of Work: Design and review PCB in compliance with: ATEX Directive 2014/34/EU IECEx Scheme IEC 60079 standards (especially 60079-0 and 60079-11 for intrinsic safety) Provide guidance on protection methods (e.g., Intrinsic Safety – Ex i, Increased Safety – Ex e, etc.) Ensure proper implementation of: Creepage and clearance distances Energy limitation and fault tolerance Component selection and de...

I need a electrical designer who can prepare an approval-ready electrical plan for my 160 sqm restaurant in the Philippines. I already have an architectural layout drafted, so you can work directly from that file. The goal is to produce a complete electrical design package that satisfies local permitting requirements and aligns with the Philippine Electrical Code. I will submit these documents to the city engineer, so accuracy and compliance are critical. Key tasks • Review my existing layout and identify optimal circuit routes, panel locations, and load calculations. • Produce a stamped electrical plan (PDF + DWG) showing branch circuits, breaker schedules, lighting and receptacle layouts, grounding, and single-line diagrams. • Include any notes or legends typically r...

Custom PCB Design & Firmware for Solar Cooker Energy Monitor Description: We need a single-board PCB design with firmware to replace our current multi-device prototype. The device measures mains energy consumption (power, voltage, current, energy) of an induction cooker using a metering IC, reads cooking temperature via thermocouple, logs data to an SD card every 2 minutes, and uploads batches over cellular (HTTPS) every 2 hours. A reference firmware (v2.0) and Cloudflare Worker endpoint are provided. Key Deliverables: PCB schematic & layout (KiCad/EasyEDA) with Gerber, BOM, and pick-and-place files ready for fabrication Firmware (single Arduino/PlatformIO project) covering: energy metering, SD logging, cellular batch upload with offline data recovery, OTA updates, error codes,...

My prototype runs on two independent 360-degree servos that each turn a separate gear train to drive plungers. A 1.68" display and a small vibration motor round out the user interface. Functionally it works, but the mechanics feel rudimentary and the control electronics are still at a breadboard stage. Mechanical scope • Keep the existing architecture but focus on Optimization of current gear system – smoother meshing, tighter tolerances and balanced loads so each plunger actuates cleanly without stalling or backlash. • Verify torque requirements against the present servos; if calculations show a shortfall we can discuss alternate motors, yet the preference is to retain the dual-servo approach. Electrical scope • Redesign the control PCB with Increased dur...

I need my current water-level indicator rebuilt from the ground up so it does far more than just show a level. The new design must constantly monitor the tank, trigger automatic fill/stop routines, and run solely from a compact battery pack. I am open to whichever display technology you feel best suits the build—I mainly care that the read-out is clear, low-power, and robust enough for daily use. Scope of work From concept sketches to a working prototype, you will rethink the sensing method, control logic, power management, and housing. That includes choosing the ideal microcontroller, designing the PCB, writing the firmware, and packaging everything in an enclosure that can handle occasional splashes or condensation. The finished unit should be maintenance-friendly and easy for a n...

I'm looking for an experienced engineer to develop a closed-loop control system for DC tandem motors. Key Requirements: - Control System: Closed-loop control - Feedback Method: Current sensor - Control Signal: Analog voltage Ideal Skills and Experience: - Expertise in motor control systems - Proficient in using current sensors for feedback - Experience with analog voltage control signals - Strong background in electrical engineering and control theory Please provide relevant work experience and approach to this project.

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Hi there amazing freelancers, I have a relatively simple wiring diagram that I need converted to a KiCad file to send out for 3rd party fabrication. Please see attached image and diagram.

I have a reaction-timing system schematic that needs a careful second set of eyes. Your task is to validate the entire power section—specifically the voltage levels, current-carrying capability of each rail, and how the various power sources are integrated—and then scrutinise every ceramic capacitor on the board for correct capacitance values and voltage ratings. You’ll receive the full PDF and the original design files (KiCad). I expect clear, pin-referenced comments on the schematic plus a concise report outlining: • any mismatched voltage rails or trace width issues that could limit current • potential inrush or stability concerns tied to the chosen power sources • capacitors whose stated capacitance or voltage rating doesn’t align with the c...

Seeking an electrical engineer or controls engineer to design a residential prototype system for monitoring energy use on selected branch circuits and disconnecting a circuit when its daily energy consumption exceeds a configurable limit. Project overview The system is intended for a 120/240 V residential service with a 200 A main panel. The goal is to monitor approximately 8 to 10 selected branch circuits, measure kWh consumption on each circuit, and automatically turn off an individual circuit when its daily kWh use exceeds an adjustable per-day setpoint. The intended architecture uses DIN-rail Modbus energy meters, RS-485 communications, and contactors or other suitable circuit-interrupting devices controlled by a central controller. functional Requirements • Monitor 8 to 10 selec...

My motor-driven inspection robot already works, but its electronics and code now need a serious upgrade. The mobile unit talks to a control box through a 100-metre twisted-pair cable while a vision camera streams live video, so every watt saved and every microsecond trimmed matters. Phase 1 – Mobile Unit I want the existing PCB completely re-laid to improve thermal behaviour, noise immunity and overall robustness. You will analyse the current board, then redesign it for cleaner power distribution, better signal integrity and easier field service. Schematics, PCB files (Altium or KiCad preferred), BOM and production-ready Gerbers are expected. Phase 2 – Control Box Inside the controller several separate boards handle power, comms and motor control. I need these consolidate...

I’m developing a commercial product that relies on a set of interactive elements—speakers, sensors, and LED displays—and I need clean, production-ready schematic diagrams that tie them all together. The core of the job is translating my functional requirements into well-documented circuitry that in-house team can follow without second-guessing pinouts, signal paths or power budgets. This is an interactive piano that plays audio files. You’re free to work in whichever design environment you’re most comfortable with—Altium, KiCad, Eagle, OrCAD, or any other professional tool—as long as the resulting files can be shared in their native format plus PDFs for quick reference. What I expect from you: • A complete, logically organised schematic sho...

I’m putting together a detailed single line diagram for a new power-distribution scheme and need an experienced electrical engineer to finish it to professional standards. The drawing has to capture every piece of switchgear and all control panels, plus a PLC-driven control system so the operations team can trace power flow and interlocks at a glance. I’ll supply my preliminary notes, load data and equipment schedules; you transform them into a clean, industry-compliant SLD that can be issued for construction. I’m expecting layered DWG and print-ready PDF files, clearly annotated, with device tags that match the bill of materials. Use whatever drafting platform you’re most fluent with—AutoCAD Electrical, EPLAN, or similar is fine—as long as the final fi...

I want to retrofit the faucets in my sinks so that the water starts and stops automatically, cutting waste every time someone washes their hands. My idea is to mount motion sensors near the faucet handle; when a hand approaches, the valve opens and, once no movement is detected, a built-in timer shuts the flow after a short delay for rinsing. Here’s what I need from you: • An electronics solution built around motion sensors positioned at the handle area, with a timer-based automatic shut-off. • A clear wiring diagram, component list and recommended suppliers. • Microcontroller or off-the-shelf control module code/firmware that handles motion detection, debounce, and the adjustable shut-off timer. • Mechanical integration details—housing or bracket concepts...

I’m building a proof-of-concept that can drive about fifteen miniature coils with freely programmable electromagnetic bursts. The first milestone is to settle on the most suitable microcontroller platform—Teensy 4.1 looks promising, yet I’m open to any alternative that offers comparable speed and I/O while keeping component procurement inexpensive here in Shenzhen. Cost-effectiveness, especially in sourcing parts locally, is my top priority, so I’d like your guidance on picking chips, drivers, and passive components that are abundant in Huaqiangbei and similar markets. Once the hardware is defined, I need firmware that lets each coil receive independent, highly variable waveforms (adjustable amplitude, frequency, duty-cycle, and pulse trains). A companion PC or t...

Necesito un diseñador electrónico que me ayude a pasar de idea a archivo Gerber una placa de 15 × 15 cm lista para fabricar en JLCPCB. Componentes que debo integrar: • 1 ESP32 montado tipo “solder-on”. • 4 pantallas LCD conectadas por cable. • 4 relés con su respectivo LED indicador. • 2 módulos de 315 MHz, previstos con conectores tipo header (tal como los quiero montar). • 1 módulo para tarjeta micro SD. Aún no dispongo del esquema eléctrico, así que también requiero apoyo para elaborarlo y validar la asignación de pines, trazos de alimentación y señales. Cuando el circuito esté claro, necesito: 1. Diseño del esquemático completo ...

Preciso colocar um Ubiquiti UniFi Gateway USG Pro 4 para funcionar em minha rede residencial cabeada. Quero que todo o processo de configuração inicial fique pronto, incluindo: • Definição das interfaces WAN/LAN, VLANs e DHCP • Aplicação das melhores práticas de segurança básicas do UniFi Controller • Ajustes para garantir estabilidade em uma estrutura somente cabeada (não haverá Wi-Fi neste projeto) Já possuo acesso ao UniFi Controller e ao equipamento instalado no rack; falta mesmo é a configuração detalhada. Aceito que o trabalho seja feito por acesso remoto, desde que me explique cada etapa para que eu possa manter o sistema depois.