Electrónica Jobs

Seeking layout engineer with experience in Altium, low noise analog circuitry, and EMI mitigation. This project encompasses minor updates to an existing board which has already passed EMI testing. There may or may not be a desire to further reduce emissions, but the main focus is signal processing updates.

I’m putting together a simple proof-of-concept: an XY plotter that uses stepper motors and a motor-driven cream / syringe head to write one predefined word on plain paper in four different sizes. The word and the sizes will be hard-coded for now; no live UI or font selection is needed. I just want to see smooth, accurate motion, clean cream extrusion, and clearly legible lettering in an “Elegant” style. Here’s what I need from you: • Mechanical design and parts list for the XY frame, rails, carriage, and syringe mount, all sized for an A4 sheet of paper. • Electronics schematic and firmware (Arduino + GRBL, or any open-source control stack you prefer) that drives two XY stepper motors plus a third actuator for the syringe. • G-code or equivalen...

I need an expert to test and fix circuit components for a radio project. Key tasks include: - Tasting and fixing circuits on both breadboard and PCB - Primarily focusing on transistors and diodes - Diagnosing and resolving short circuits Ideal Skills and Experience: - Proficiency in working with transistors and diodes - Experience with both breadboard and PCB setups - Strong troubleshooting skills for short circuits Looking forward to your bids!

I have a working surface-EMG biofeedback prototype that is almost ready for a clinical trial. My background is in Occupational Therapy, so I need a technically-minded partner to finish the engineering details. The prototype already captures clean EMG signals, but three areas still need work before it enters the clinic: 1. Fixing the vibration sensor • Diagnose the current instability (occasional dropouts and inconsistent amplitude) • Re-calibrate and, if necessary, replace the sensor so it triggers haptic feedback within 50 ms of threshold detection • Deliver updated firmware and wiring diagram 2. Building EMG display software for Windows • Real-time data visualization (raw signal and RMS/average) • Session recording to CSV or similar fo...

I need a local technician near North Bay, Ontario, who already works comfortably with the Siemens SiPART DR24 controller to verify every field-to-board and board-to-board connection and every component on one unit that is giving intermittent faults. The focus is on connection and component testing rather than functional or algorithm checks; I want confirmation that every terminal, ribbon, plug, and socket is carrying the right signal with no unexpected resistance, shorts, or breaks, and that every component is functioning as it should. Please arrive with your own calibrated scopes, continuity meters, breakout adapters, or any other diagnostic tools you normally rely on for this class of industrial controller. Once on site you will trace and test each connection, document the readings in a...

I am looking for an experienced embedded hardware and audio electronics engineer to replicate a custom automotive audio reverb/DSP module from scratch (0 to 100 delivery). The original circuit uses a Spin Semiconductor SPN1001-FV1 DSP, a Microchip MCP604 quad op-amp, and an external 8-pin EEPROM chip. I need a complete, end-to-end service: hardware reverse engineering, firmware dumping, PCB design, component sourcing, board assembly, and delivery of a fully functional prototype. Scope of Work & Deliverables: 1. EEPROM Firmware Extraction: Extract/dump the binary code from the 8-pin EEPROM chip on the provided reference board to preserve the custom reverb algorithm. 2. Schematic Capture & PCB Design: Recreate the schematic in EDA software (preferably KiCad or Altium) including the...

I have an industrial automation setup that needs to be driven entirely from LabVIEW. The core of the job is to integrate my DAQ devices with custom LabVIEW code so the line can run hands-free and generate reliable data. Here is what I need from you: • Data acquisition & processing – configure the DAQ hardware, create robust VI’s for continuous logging, and implement on-the-fly filtering so the raw signals become clean, time-stamped datasets. • Control system design – build closed-loop control logic inside LabVIEW, complete with PID tuning where required, to keep temperature, pressure, and motor speeds within setpoints. • Equipment calibration & testing – script automated calibration routines for each channel on the DAQ, produce verificatio...

I keep losing power in the living room and bedrooms whenever the same breaker flips, and the issue has become more frequent over the past week. I need someone who can come onsite, trace the wiring on that residential circuit, pinpoint whatever is causing the repeated trips, and confirm the safest long-term fix. Your job is to isolate the fault, explain what’s happening in plain language, and either correct it on the spot or give me a clear written plan—parts, labour and estimated time—so I can approve repairs immediately. A professional toolkit (multimeter, continuity tester, insulation resistance meter) and solid familiarity with domestic wiring regulations are essential. Deliverables: • On-site diagnostic of the affected circuit • Brief report outlin...

I’m ready to commission the complete electronic design for a 150-300 W pure-sine-wave solar inverter that will run from a 12.8 V / 100 Ah LiFePO4 pack and deliver 220 VAC. The unit must operate reliably indoors and outdoors, fit comfortably within a 10 × 20 cm footprint, and meet commercial-grade durability standards. Core electrical requirements • True sine-wave topology with ≥90 % efficiency under typical load • Clean 220 VAC output, THD ≤3 % at 150 W, full-power capability to 300 W • Input 12 VDC nominal, LiFePO4 profile charging via high-frequency PWM • Integrated SoC display or LEDs for real-time battery percentage and charge status Protection & safety Over-temperature shutdown, overload limiting, and fast-acting short-circuit prot...

We are a team of Electrical Power Engineering students looking for an experienced engineer or academic expert to help us identify and evaluate a strong graduation project idea. We are mainly interested in projects related to: Power Systems, Protection, Power Quality, Distribution Systems, Motor Drives, Fault Detection, Automation, Grid Reliability, and Smart Power Systems. The project should: * Solve a real and relevant electrical power problem * Include a practical physical prototype * Include a meaningful simulation using tools such as ETAP, MATLAB/Simulink, PSCAD, or similar * Be feasible for a student team within approximately 4–6 months * Have reasonable hardware cost * Be technically strong and suitable for a final-year graduation project * Preferably improve an existing sol...

We are looking for an experienced RF PCB Layout Engineer to review and complete an existing multi-radio PCB design. This is not a design-from-scratch project. The schematic, component placement and most signal/power routing are already completed. The remaining work is focused mainly on RF layout finalization and production-readiness review. Required experience: Sub-GHz / LoRa RF PCB routing LTE RF layout GNSS RF layout 50-ohm controlled-impedance routing RF matching networks antenna feed layout ground return and stitching-via strategy RF keep-outs and isolation multilayer PCB stack-up EMI/EMC-aware layout KiCad The selected engineer will be required to review the existing PCB, complete/correct the RF sections and bring the board to fabrication-ready status. Expected deliverables incl...

We are looking for an experienced Automotive Electronics / PCB Design Engineer to modify and extend an existing vehicle tracking hardware design into an OBD-II telematics device. The project will include two variants: Modern vehicles – OBD-II with CAN communication. Older vehicles – OBD-II with CAN + K-Line support. We prefer a common hardware platform where possible, with different BOM/configuration options for the two variants. The engineer must have proven experience with OBD-II, CAN Bus, K-Line, automotive power supply/protection, PCB schematic design, and vehicle telematics hardware. Initial deliverables will include the updated schematic, BOM, component selection/alternatives, interface design, automotive protection circuitry, and design documentation. IMPORTANT: Th...

I have an NXP 595-based concept that has to fit into an 18 mm footprint and be reproduced on twelve identical boards. The boards are for development and testing, yet I need production-grade documentation so I can send the files straight to fabrication and assembly without extra rework. Core requirements • High-integration layout that combines power management, signal processing and data communication on the same tiny PCB • Clean, EMI-conscious routing to keep signals reliable despite the tight real estate • All design files delivered in a mainstream ECAD package (Altium Designer, KiCad or similar) along with manufacturing outputs Deliverables 1. Complete schematic with component libraries 2. PCB layout and 3D step model in the agreed tool 3. Gerber and drill fi...

I need a small 33 x 29 mm membrane touch latching switch printed circuit board (PCB) with only 8 SMDs on it, copied for a obsolete device. I'm looking to get 100 of these made, possibly 200 depending on pricing. I can send the 6 component list and photos of the circuit board and a complete circuit board is this 2 sided. The active devices are a ATMEL TINY 13A (needs programming and a PA1CD (i think it's a zener diode, 4 resistors and 1 capacitor. On the decal side there is a small led that lights when latched. It needs to be copied exactly because this switch circuit gets glued into a recess in a plastic case with cutouts for the components so the board lays flat. I may not need the switch decal. Run on a 3.7VDC battery. Key Requirements: - Exact replication of the existing PCB...

I have a consumer-electronics project that is almost ready for production, but I need a fresh set of expert eyes before I commit to tooling. Your job is to scrutinise every level of the design and give me a concise, actionable report. Scope of the review • Schematic – confirm AC isolation, creepage distances, relay selection and power-supply safety. • PCB layout – check placement, clearances, return paths and routing discipline. • BOM – verify component availability, footprints, part compatibility and RoHS compliance. • Firmware – validate logic for sensors, alarms, GSM SMS/call handling, relay control and fail-safe behaviour. • Safety & compliance – highlight anything that could jeopardise CE (LVD/EMC) readiness and fla...

I need an embedded developer who can write reliable, production-ready firmware that squeezes extra performance from aftermarket automotive modules. The immediate focus is on three devices: • CNG timing advancers • O2 optimizers • CKP sensors The end goal is measurable performance improvement, not just basic functionality, so timing accuracy, fast signal processing and rock-solid stability are essential. I am not certain whether any legacy code exists for these boards; you may be starting from a clean slate or refining half-finished firmware. Either way, I will supply the hardware, electrical schematics, and any reference data I can gather. You will advise on toolchains, microcontroller families and calibration workflows, then deliver: • Complete, compile-ready...

I have an idea for a two-way text-messaging gadget that is no larger than a common correction-tape dispenser. The brain of the unit must be an ESP32-C3 and the only wireless link I need is Wi-Fi—no Bluetooth fallback. Power will come from a small, replaceable battery rather than USB or a rechargeable cell, so every milliamp you can save counts. Here is what I expect when we are done: • A compact PCB layout that fits the rough footprint of correction tape (around 95 × 25 × 15 mm; I can adjust a little if it helps with antenna clearance). • Complete schematic, Gerbers and a concise BOM with readily available parts. • Firmware built with ESP-IDF or Arduino-ESP32 that can send and receive short text payloads over Wi-Fi, display them (even a simple OLED/LE...

I’m looking for a skilled mechatronics specialist who can jump straight into the electrical and software-programming sides of my machine-building project. The mechanical portion is already under control in-house, so your focus will be integrating, testing, and refining the control electronics and embedded code that drive the system. You should be comfortable reading and updating wiring schematics, selecting or replacing critical components, and writing clean, well-documented firmware or PLC logic that keeps everything running reliably. If you can also implement quick diagnostic routines and safety interlocks, even better. Scope at a glance • Review existing electrical design, spot weak points, propose improvements • Develop or optimise the control software (C/C++, Pyt...

I’m leading a senior-year project where my student team will build and test an induction-motor drive (motor, VFD, sensors, protection, filters, the works). What we’re missing is seasoned electrical-engineering insight during the DESIGN phase. Here’s what I’d like from you: • Review and refine our single-line and wiring diagrams, ensuring safe operation on a 3-phase, 480 V supply. • Help size and specify the motor, VFD, fuses/MCB, contactors, braking resistor, EMI/RFI filters, current/voltage sensors, and any surge- or overload-protection devices. • Validate thermal calculations, harmonic considerations and grounding/shielding practices. • Provide a concise Bill of Materials with part numbers and vendor suggestions, flagging long-lead or co...

I have a consumer-electronics concept ready for the next step and need a clean, production-ready double-layer PCB layout. The board will host a mix of through-hole and surface-mount parts, so component placement and routing must accommodate both styles without ballooning the footprint. Deliverables: • Finished design files in Altium and industry-standard Gerbers • Drill files, pick-and-place data, and a tidy BOM (Excel or CSV) • Test PCB's with assembly I will review the Gerbers in ViewMate and run a quick fit-check in our enclosure CAD; the project is complete once the files import cleanly and the report answers all open questions. Looking for someone in India, Delhi NCR Region. Thanks

We are a team of Electrical Power Engineering students working on our senior graduation project. We need an experienced Electrical Power Engineer to provide technical guidance and engineering support for designing, simulating, and building a physical prototype. The project focuses on detecting power-quality disturbances (Voltage Unbalance and Harmonics) affecting a three-phase induction motor, diagnosing the disturbance, and applying automatic corrective actions in a closed-loop system. Key areas include: 1. Hardware Prototype Development: Guidance on architecture, component selection, electrical design, sensing/isolation, protection, wiring, testing, and troubleshooting for components like three-phase induction motors, VFDs, ESP32-based data acquisition systems, harmonic filters, capaci...

I’m developing a dedicated handheld that will operate offline. No Wi-Fi, Bluetooth, cellular, or any other radio is required, so the entire design has to function in isolation. Because of that restriction I’m open to whichever operating system keeps the footprint light and the boot time quick, whether that’s a stripped-down Android build with networking stacks removed or a fully custom OS. but more likely just on/off. then a button to run. Your task is to take the idea from concept to a working prototype. I’ll need the electronic design (schematic, PCB layout, and component selection), a daylight-readable display, a rechargeable battery able to power at least eight hours of continuous use.. Low power consumption, immediate on/off and rock-solid stability. Delivera...

I need a compact firmware-and-hardware solution that lets a PIC microcontroller, programmed with the XC8 compiler, manage a battery-powered power supply built around a lead-acid pack. Here is what I am after: the PIC should start up from the battery, regulate or switch the output rails as required, continuously read the pack voltage, temperature or any other basic health indicators, and trigger clear actions (for example, low-voltage cutoff or status signalling) before the battery reaches critical limits. A simple serial, I²C or even LED indicator scheme is fine for status feedback—as long as I can read the key parameters easily during bench tests. Please base the code on MPLAB X + XC8 so I can compile and tweak it locally. If you prefer a specific mid-range PIC that is re...

I already have a universal BLDC ceiling-fan driver PCB running perfectly from mains power; what it lacks is an Arduino brain. My goal is to plug an Arduino (Uno, Nano, or whichever you prefer) into the existing driver so I can: • adjust fan speed across its full range, • reverse the direction on command, and • set on/off timers, all through a small set of physical push-buttons mounted near the fan. What I need from you is a clean, well-commented sketch plus a minimal wiring diagram that shows exactly where every button, resistor, and logic-level signal ties into the driver board. If any level-shifting, opto-isolation, or triac/FET gating is required, please spell that out and include the component values. Debounced button handling and non-blocking timer logic (e.g., u...

I’m building a proof-of-concept noise-reduction module destined for consumer-grade electronics. My priority is an electronic schematic that delivers two core capabilities: active noise cancellation and echo reduction. The circuit must be small enough to embed in another typical product that will be mentioned later on as the project develops. Here’s the flow I have in mind. First, we collaborate on the signal-processing topology—feed-forward, feedback, or hybrid—then translate it into a detailed schematic and PCB layout (Altium, KiCad, or your preferred EDA). Once the draft design is ready, I’ll need simulations or bench measurements that prove at least 20 dB attenuation in the 50 Hz–2 kHz band while holding latency under 10 ms; please include SPICE plot...

My final-year electrical engineering project is well underway, but I want the written report to reflect the same level of professionalism as the technical work behind it. I will handle all calculations, simulations, and data; what I need is an experienced engineer—or a writer who routinely prepares professional engineering documents—to help me shape that material into a clear, cohesive LaTeX manuscript. I have 2 separate reports to write. The topic of the first is programming and security-related. The second report is analogue circuit-based. As I said i will do all the technical work; I just need help putting these documents together. The submission for these reports is at the beginning of November and should be roughly 30 pages long. Scope of collaboration • Co-writi...

I need a specialist to build the core firmware. The brain of the machine is an STM32 MCU and it must coordinate three key subsystems—motors, heaters, and fans—through a pair of Trinamic drivers (TMC2209 and TMC5160). Your code will run in Embedded C/C++, parse incoming G-code, and translate it into smooth motion and reliable temperature control while guarding against every fault scenario a printer can face. Here is the scope in practical terms: • Motion: drive multiple stepper axes with proper acceleration/deceleration, junction deviation, and micro-stepping using the two Trinamic driver families. • Temperature: read NTC thermistors, run a well-tuned PID loop for hotend and bed, manage cooling fans, and shut everything down on thermal runaway. • Safety &...

I’m wrapping up the hardware side of a 3.5 kW single-phase on-grid inverter I’m building for my own use and now need well-structured C firmware to bring it to life. The goal is solid, standards-minded code that will: • keep the inverter phase-locked to the utility grid (grid synchronization), • sample and report key electrical parameters in real time (power monitoring), and • trigger a fast, orderly shutdown whenever limits are exceeded or the grid disappears (safety shutdown). I will share the full microcontroller pin-map, schematic details, and any manufacturer SDKs I already have. You’re free to work with bare-metal C or leverage vendor libraries as long as the final build remains portable and easy for me to maintain. Clear comments, interrupt-...

Industrial 220V Power Supply & Machine ON/OFF Control PCB Design I am looking for an experienced Power Electronics / PCB Design Engineer to design a compact industrial power supply and control circuit that will work with our existing IoT device. Main Requirements - Input: 220–240V AC industrial supply - Provide stable DC power to our existing IoT device - IoT device will provide the control signal for Machine ON/OFF - Circuit must safely switch/control the industrial machine using an appropriate relay/contactor/SSR or other suitable solution - The machine load current will pass through or be controlled by the designed switching section - Proper isolation between high-voltage AC and low-voltage IoT electronics - Include necessary protection: fuse, surge protection, over-current...

I need a detailed design for a 600 amp electrical service for a residential building. The primary use will be general household needs, with high-power cooktops as the only significant appliance. Key Requirements: - Design should accommodate 600 amps for a residential building - Primary use is general household consumption - High-power cooktops to be included in the design Ideal Skills and Experience: - Electrical engineering background - Experience in residential service design - Knowledge of high-amperage systems and safety protocols - Ability to provide detailed schematics and load calculations Please include any relevant certifications and past project examples in your bids. must be certified in new mexico

The client is seeking an experienced developer to create a professional and functional online menu system for a delivery store, using the WordPress platform. The project involves creating a dedicated menu page with product categories, detailed product display (photo, name, description, price), quantity selection functionality, and a shopping cart. The system should automatically calculate the order total and allow checkout, where the customer will provide their delivery details (name, phone number, address, neighborhood, and house number). A crucial requirement is integration so that, once the order is finalized, it is automatically organized and sent to the store’s WhatsApp. There is no need for an online payment system at this stage, as the order will be completed via WhatsApp. It...

I’m putting together a compact dual-camera dashcam that can watch the road and simultaneously monitor the driver. I already have the product vision and feature set defined; now I need an embedded systems specialist who can turn it into working hardware and firmware. Core functionality • Two SD-resolution image sensors, one road-facing and one cabin-facing • Live video uplink over 4G/LTE plus on-device recording to a removable SD card • GPS receiver for continuous tracking and metadata stamping • Integrated motion sensing and true impact detection, so an on-board accelerometer must trigger and flag critical events even when the car is parked • Clean vehicle-grade power input and automatic power-down logic to protect the battery Scope of work 1. Com...

Taşınabilir bir kontrolcü tasarlıyorum; ESP32, ekran ve joystick gibi tüm bileşenler elimde fakat ekranın ESP32’ye doğru şekilde bağlanması ve çalıştırılması için desteğe ihtiyacım var. Öncelikli hedefim: • Ekranın ESP32’ye hatasız fiziksel bağlantısı (pin planı, güç hatları, arka ışık kontrolü). • Uygun sürücü kütüphanesini (örn. TFT_eSPI, LCD, OLED vb.) yapılandırıp örnek kodla görüntü alabilmek. • Joystick okuma kodunu ekranda canlı gösterecek basit bir demo hazırlamak (isteğe bağlı, zaman elverirse). Benden beklenen çıktı: 1. Kısa sürede uygulanabilir bağlantı şeması (KiCad, Fritzing veya PDF). 2. Çalışır örnek kaynak ko...

I have an Arduino-based setup that drives DC motors and I need clean, well-commented code that handles speed control, direction changes, and automated stopping. The sketch can be written from scratch or built on what I already have; either way, I want the final file to compile error-free in the current Arduino IDE and be easy for me to tweak later. Here’s the core logic I’m after: • Speed control – PWM or another reliable method that lets me adjust RPM smoothly from zero to full throttle. • Direction control – forward/reverse switching triggered by a digital input or a serial command. • Automated stopping – when a limit switch, sensor, or timed event is triggered the motor should brake or coast to a halt, then wait for the next command. I...

I need a complete set of EPLAN schematics that map out the electrical drivetrain of my vehicle prototype. The focus is strictly on the electric motor and its controller; auxiliary items such as battery packs, charging modules, or transmission layouts are outside this job’s scope for now. You are free to work without binding standards, so feel comfortable applying your own best-practice symbols, macros, and page templates in EPLAN Electric P8. What matters most is clarity, consistent device tagging, and tidy routing so my in-house engineers can drop your file straight into the broader vehicle project. Deliverables • Native EPLAN project file (.elk / .zw1) with all pages clearly labeled • PDF export for quick review • Simple parts list (motor, controller, core co...

My 12 kW rooftop array is already in place on the garage, tied together into four strings. The inverter and battery cabinets are mounted and waiting; what’s missing is the DC run that will bring the power from the array down through conduit and land it cleanly inside the inverter’s DC inputs. There are no known faults—everything is simply unfinished—so the task is straightforward DC wiring between panels and inverter only. We are in unincorporated Hays County, Texas, so no municipal permit process is required. What I need from you: • Pull and terminate the four PV strings (MC4 to combiner if preferred, or directly to the inverter’s MPPT inputs). • Route wire in code-compliant EMT or PVC from roof to garage interior, with proper labeling, ground...

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

I need a PLC program for industrial automation in the Oil & Gas sector, specifically for upstream processes. The ideal candidate should have: - Expertise in PLC programming - Experience with Oil & Gas industry, especially upstream operations - Knowledge of industrial automation protocols and standards - Ability to develop reliable and efficient control systems Please provide examples of previous work and relevant certifications.

I’m building a small consumer-electronics project and need a purpose-built, rectangular PCB that can drive an induction heater at up to 100 W. The board must accept power from either a standard DC adapter or a USB-C PD or DC source, automatically negotiating or routing whichever is connected. Power control is intentionally simple: ten individual LEDs indicate output in 10 W increments (10 W – 100 W), and a single rotary dial steps the power up or down in those same 10 W stages. No screen, menus, or extras—just clean, reliable hardware. What I expect from you • Complete schematic with component values, coil connection, gate-drive stage, protection (over-current / over-temp), and USB-C PD or DC supply trigger circuitry. • PCB layout ready for fabrication...

I need a qualified electrician for testing at a solar farm. Requirements: - Use testing equipment (provided + training if required). Ideal Skills and Experience: - Level 3 electrical install - Level 3 testing - CSCS or ECS card

We are looking for an experienced Mechanical/CAD Designer to design our custom filament 3D printer, GenZ OG. Main Requirements: CoreXY printer Build volume: 200 × 200 × 200 mm Unique modern design, not a standard box shape Complete 3D CAD assembly Frame, toolhead, heated bed and belt-system design Component selection and BOM Manufacturing drawings STEP, STL, DXF and editable CAD files Support for minor corrections during prototype assembly The candidate should have experience designing 3D printers, CNC machines, robotics or similar mechanical products. SolidWorks or Fusion 360 experience is preferred. Please share your relevant portfolio, availability, timeline and final quotation.

I need a compact, well-structured PLC program for a Delta controller that will drive two servo motors in perfect synchrony, using pulse-and-direction signals. The servos form the heart of a custom lemongrass-cutting machine, so tight positional tracking between both axes is critical; any lag or mismatch will affect cut quality. The work involves: • Writing and commenting the ladder / structured-text code (WPLSoft or ISPSoft—whatever you are most comfortable with) so that both axes accelerate, run, and decelerate together from a single command source. • Setting up all relevant parameters for pulse output, high-speed counters, and motion settings on the Delta PLC as well as the matching Delta servo drives. • Supplying a brief commissioning guide—address map...

I am looking for an electrical engineer / KNX specialist to prepare the complete execution documentation for a residential KNX/DALI installation. The installation itself will be carried out by a local electrician in Switzerland based on the plans and documentation we finalize together. The required scope is divided into three phases: Phase 1 – Design and Planning * Review the architectural plans and requirements * Review and finalize the electrical, KNX and DALI design * Finalize fuse box layout, protection devices and component locations * Finalize conduit and cable planning Phase 2 – Detailed Documentation * Prepare complete fuse box drawings * Prepare detailed 230 V, KNX, DALI and low-voltage wiring diagrams * Prepare conduit and cable schedules showing cable types, size...

I need assistance with optimizing and designing a PCB for a water treatment system. I have all the necessary components, including: - TDS sensors - Pressure sensors - Flow sensors - Relays - Float switch - Solenoid valve The ideal freelancer should have experience in: - PCB design - Component optimization - Working with water treatment systems Please provide a printable PCB design for the finished product.

Project Overview: We have a completed engineering design, schematics, and a preliminary Bill of Materials (BOM), along with a 3D STEP mechanical model for a portable electronic thermal device. We are looking for an expert PCB design engineer to prepare and deliver a complete Manufacturing Package ready for immediate submission to major PCB manufacturers (such as PCBWay / JLCPCB) without any errors. Main Tasks & Deliverables: Review the design and BOM, and propose the optimal PCB technical specifications (such as copper thickness, FR-4 TG thermal rating, and surface finish) based on the device's power and heating circuitry requirements. Gerber Files: Standard RS-274X format for all layers. Excellon Drill Files: Accurate drill and hole specifications. Pick-and-Place / CPL File:...

Please note that below task is only available to local Germans and long-term German residents. I need help tracking down reliable, fairly-priced, second-hand test and measurement instruments here in Germany. The priority units are signal generators, spectrum & network analyzers, EMI test receivers, radio communication testers and phase-noise analyzers from both Rohde & Schwarz and Keysight. Your task is to compile a vetted directory that includes: • Company name and brief background • Physical address (or warehouse location) • Direct contact person, phone, and email • Notes on current inventory, typical grading standards, and any return or warranty terms you uncover • For suppliers without an official website, please include an on-site/company entrance ph...

This project takes a brand-new consumer-electronics board from concept all the way to files the factory can put straight on the pick-and-place line. The design is SMT-only and must integrate an on-board Wi-Fi/Bluetooth module, so careful RF layout, impedance-controlled routing and a compact, cost-optimised stack-up are essential. I will share a functional block diagram, mechanical limits and the key IC selections; you translate that information into production-ready hardware. Throughout the process I expect clear, well-documented design files that make future revisions simple. Deliverables • Editable schematic with clear net-naming and annotation • PCB layout observing DFM/DFT rules and vendor constraints • Manufacturing outputs: Gerbers, drill, pick-and-place and ce...

I need a compact, indoor-only training device that keeps my dog or cat within designated areas. The goal is simple behavior correction for containment, not trick teaching or general exercise. When a pet approaches or crosses a virtual or physical boundary, the unit should deliver a very mild shock stimulation—strong enough to deter, yet well within accepted animal-safety standards. Here is what I’m looking for: • A complete concept and schematic for the device, including sensor choice, power requirements, safety circuitry, and enclosure design. • Firmware or control logic that triggers the mild stimulus reliably and only when intended. • A brief user-setup guide so anyone can define or adjust boundaries indoors. If you can add optional sound or light cues ...

I have an industrial-grade product moving from concept into full hardware design, and I want an embedded hardware architect who can also drive a robust multi-layer PCB layout. The work is centred on designing new hardware—not tweaking an existing board—so every decision from component selection to stack-up, power integrity and EMI/EMC strategy has to start from first principles and end in a manufacturable, production-ready package. The equipment will operate inside a factory environment with the usual electrical noise, temperature swings and mechanical vibration, so I’m expecting careful attention to isolation, thermal management and long-term reliability. You’ll translate my functional block diagram into clean schematics, size critical nets, route high-current pat...

# NFC Design Requirements ## 1. Basic Requirements * **NFC Frequency:** 13.56 MHz * **NFC IC Supply:** 3.3 V * **NFC IC:** NXP NFC IC * **Host MCU:** ESP32 / selected MCU * **Communication:** I²C * **Antenna:** PCB loop antenna * **Target NFC Range:** 20–30 mm * **PCB:** 2-layer PCB preferred * **Operating Temperature:** -20°C to +70°C ## 2. NFC Antenna * PCB antenna shall be designed for **13.56 MHz**. * Antenna dimensions shall be optimized based on available PCB space. * Keep ground copper away from the antenna area. * Keep battery and other metal objects away from the antenna where possible. * Antenna matching components shall be provided for tuning. ## 3. Power * NFC IC supply: **3.3 V** * Provide local decoupling capacitors near the NFC IC. * NFC supply shall...