Engenharia Elétrica Jobs

I am looking for a qualified solar engineer to take my off-grid project from concept through to a build-ready package. The site is currently without grid access, so the system must be fully self-sufficient and sized to match daily household loads plus a modest growth allowance. What I expect you to cover • Accurate load assessment and array sizing • Selection of panels, MPPT inverter/charger, battery bank, and protective gear that balance cost, longevity, and efficiency • Single-line diagrams, wiring schedules, and mounting layout drawings suitable for a local electrician to follow • A clear bill of quantities with unit pricing and a total project cost estimate • A brief technical proposal that explains your design choices, expected performance, and main...

Je recherche un professionnel capable d’installer correctement un lave-linge neuf chez moi. Le service attendu est une installation complète d’appareil électroménager – plus précisément, un lave-linge – incluant : • Déballage et mise en place de la machine à l’emplacement prévu • Raccordement aux arrivées d’eau froide et évacuation • Mise à niveau de l’appareil pour éviter toute vibration • Branchement électrique et vérification de la prise de terre • Lancement d’un cycle de test afin de contrôler l’absence de fuites et le bon fonctionnement Je fournis l’appareil et les flexibles d’or...

# WE ARE HIRING! ## AUTOCAD & SOLIDWORKS DESIGNER **Specialist in Control Panel Design** ### JOB RESPONSIBILITIES - Design electrical control panel enclosures in AutoCAD & SolidWorks. - Prepare GA, assembly and manufacturing drawings. - Panel layout, cable routing and component arrangement. - Create BOM, cut list and detailed fabrication drawings. - Coordinate with the production team for design changes. - Work on custom panel solutions as per client requirements. ### REQUIREMENTS - Proficiency in AutoCAD & SolidWorks. - Specialization in control panel design. - Minimum 1 year of relevant work experience. - Knowledge of sheet metal design and fabrication processes. - Understanding of electrical control panel standards (IP rating, mounting, cable management, etc.). - Good pr...

I need a skilled RF-oriented technician to come on-site to my residential address, sweep the area with a portable spectrum analyzer, and pinpoint whatever is generating a persistent high-frequency, high-pitch squeal. The job is straightforward: confirm the exact source, capture the key frequency data, and hand back a concise report that shows your measurements, screenshots or data logs from the analyzer, and a brief explanation of how you isolated the culprit. If you can suggest quick mitigation steps, even better. I’m only considering freelancers who can show solid, hands-on experience doing field spectrum analysis or similar interference hunts, so please highlight that in your bid. Bring your own calibrated portable spectrum analyzer; no software-only solutions will work for ...

I have an echo-sounding instrument whose current PCB shows unreliable behaviour in the field. I need a skilled hardware engineer to review the existing schematic, pinpoint the root causes of the faults, and create a revised board that is production-ready. You will receive: • The original KiCad project (schematic, PCB, libraries) • Test logs and scope captures highlighting the failures • Electrical and mechanical constraints for the housing What I expect back: • A concise design-review report explaining each issue you find . A power indicator LED. • Updated schematic, PCB layout, and clean net-checking with all errors resolved • New BOM with readily available parts and suggested alternates • Fabrication files (Gerber/ODB++, drill, pick-and-p...

I'm seeking an experienced embedded electronics engineer to help develop a prototype for a wearable medical device or biosensor. The primary function of the device is yet to be determined, but it could be related to monitoring vital signs, tracking physical activity, or detecting specific biomarkers. Key requirements: - Expertise in firmware programming is essential. - Experience with wearable medical devices or biosensors is highly desirable. - Skills in PCB design, sensor integration, and prototype development would be a plus. The ideal candidate should have a strong background in embedded systems and a proven track record in developing prototypes for medical or health-related devices.

I need a qualified electrical or mechanical engineer who can read my rooftop-solar project drawings and turn them into a procurement-ready Bill of Material. The BoM should cover only the mounting structure and the electrical wiring—solar panels are outside this scope. For the mounting structure, note the exact material type and all relevant dimensions so a fabricator can quote without extra questions. For the wiring schedule, include the wire gauge, insulation type, and conduction material for every cable run, separating DC string, AC output, and earthing conductors when they differ. Deliverables • Editable spreadsheet (Excel or Google Sheets) listing item codes, descriptions, quantities and units, with the above details clearly captured. • Short annotation PDF that...

I’m setting up a new workspace and need a technically minded freelancer to handle the electrical side of the network build-out. The core of the job is “Instalasi electric” work—running power, placing outlets, and ensuring clean, reliable feeds for all network devices. What I’m after • End-to-end electrical installation that supports future routing, switching, and security hardware. • Clean cable management and labeling so expansion is painless. • Compliance with local electrical codes and standard safety practices. • Final test of all power points under load, with a concise report of readings and any anomalies. Preferred skill set Your background should be in technical jobs that mix electrical work with network engineering. If y...

**Project Title:** Industrial Vibration Monitoring PCB Design (Schematic + 4-Layer Layout) – JLCPCB Compatible **Project Description:** We need a complete PCB design for an industrial IoT vibration sensor used in predictive maintenance of rotating machinery (motors, pumps, fans, gearboxes). **Important:** All components must be available on **JLCPCB / LCSC**. Prefer parts that are in stock or have good availability. Avoid parts that require consignment unless absolutely necessary. **Scope of Work:** - Full schematic design - 4-layer PCB layout - Component placement, routing, and silkscreen - BOM with **JLCPCB/LCSC part numbers** - Design notes (power sequencing, sensor power-down, RF layout) **Key Requirements:** **Core Components (use JLCPCB-available equivalents or exact pa...

I'm looking for an experienced PCB designer to turn a provided schematic into a PCB layout. The design must prioritize optimizing signal integrity and is intended for an industrial environment. I will require all the files necessary for pcb assembly (Gerber, BOM, etc,.) Key Requirements: - Use of surface-mount components (SMD) - Industrial-grade robustness and reliability - Experience in designing PCBs with a focus on signal integrity Ideal Skills and Experience: - Proficiency in PCB design software (e.g., Altium, KiCAD) - Strong understanding of signal integrity principles - Experience with SMD layout and industrial applications

​PROJECT DESCRIPTION: We are looking for an experienced PCB hardware designer to develop a production-ready schematic and 2-layer PCB layout for a custom battery-powered LoRa node. TOTAL PROJECT DEADLINE: 5 to 7 days from project kickoff. ​CIRCUIT ARCHITECTURE & KEY COMPONENTS: ​ / RF: Ai-Thinker RA-09H LoRa module. 2 .​Power Supply: ​ * HT7333A low-quiescent LDO (3.3V rail to the RA-09H). * ​SX1308 step-up boost converter (Battery to 12V). * ​MOSFET switch to turn the 12V rail completely on/off via MCU to save battery. ​ 3 .Actuator Driver: RZ7899 H-bridge motor/actuator driver (12V). ​ 4 .Battery Monitoring: Resistor voltage divider linked to RA-09H ADC. ​ 5 .Connectors: Battery input, motor output, programming header, basic protection. 6 .Testing: Dedicated test points and exp...

About us We're a small climate technology company building solar-powered IoT monitoring devices that run off-grid in the field. Our design uses off-the-shelf components, and we write the device software in-house. We're looking for an experienced engineer to review our design and advise us, not to build it from scratch. We're also coming to Shenzhen to source components and have contacts there, the ideal candidate would also be able to help in finding the right suppliers. What you'll do - Review our hardware design and advise on components, connections and protocols - Advise on low-power and solar/battery design, and on outdoor enclosures and connectors - Review parts of our device code where your experience helps - Recommend reliable suppliers in Shenzhen, and poten...

I'm looking for a reliable DC power supply for my coil tattoo machine equipment. It needs to include a rechargeable lithium ion battery that will last running at 12 volts for a minimum of 13 hours. A 1/4” jack, a voltometer, an on off button, and a panel mounted voltometer at minimum. It needs to be as small as possible for ease of travel and obviously cordless unless charging. Thank you Requirements: - Type: DC power supply - Voltage: 12V - Current: 1A, 5A, or 10A (I'm unsure about the exact requirement) Ideal Skills and Experience: - Experience with power supply design and specifications - Knowledge of DC power supply units - Ability to provide recommendations for optimal current output Please provide a detailed proposal including your approach and any relevant experi...

I have a concrete culvert that serves a small-scale, local drainage network and I need a licensed Professional Engineer to run a full hydraulic analysis on it. Your task is to confirm the structure’s capacity under design storms, evaluate inlet and outlet control, and recommend any sizing or headwall adjustments needed to keep velocities and head losses within acceptable limits. Please base the work on current FHWA and state guidelines, applying standard methods such as Manning’s equation or HEC-RAS where appropriate, and deliver sealed calculations with clear assumptions, flow diagrams, and summary conclusions that I can submit to permitting authorities. If you have recent experience modelling concrete culverts of similar scale, I’d like to hear how quickly you could t...

I'm looking for a senior hardware engineer to design the schematic for a compact, battery-powered magnetic wireless charger for iPhone (Qi transmitter, 5–7.5 W output, single-cell Li-ion). Must have proven experience in Qi wireless charging transmitters, power electronics, and lithium-ion battery charging and protection. Deliverables: complete schematic, BOM with manufacturer part numbers, power budget and thermal calculations, and editable source files. All design IP and source files assigned to me. Fixed price only. NDA required before full specification is shared. In your bid, please answer: 1. Which Qi transmitter chip would you use, and why? 2. Show a past wireless charging transmitter project you designed.

I need a layout in Microwind for a moderate complexity combinational logic boolean equation. The layout will primarily use AND, OR, and NOT gates, and will involve 5-10 gates. Ideal skills and experience: - Proficiency in Microwind - Strong understanding of combinational logic design - Experience with AND, OR, NOT gate layouts - Ability to work with moderate complexity boolean equations

Our diesel fuel system is down because one of the main gauges has failed. I already know the issue is centred on that gauge. I can also source the correct replacement. but I need an experienced technician or engineer who can, install it safely, recalibrate the line, and run pressure tests to be sure the system is back within spec. The scope is strictly a repair, not an upgrade or redesign, so speed is important. Acceptance of the work will hinge on two points: • The new gauge is installed and sealed with no leaks. • Calibrated readings match our reference instrument across the full operating range. Please also outline your relevant experience, and your approximate location.

I’m working on a new piece of industrial equipment and need a tightly-packed PCB dedicated to reliable power management. Space inside the enclosure is scarce, so the board must stay as compact as possible without sacrificing robustness or serviceability on the factory floor. Your job is to take my preliminary block diagram and turn it into a production-ready design: schematic capture, multilayer layout, and the full manufacturing package. I’m flexible on tools—Altium, KiCad, or Eagle are all fine—as long as the output meets standard IPC guidelines and can go straight to my fabricator. Deliverables I need from you • Editable schematic and PCB layout files • Clean Gerber/NC drill set plus IPC-356 netlist • BOM with manufacturer part numbers and cu...

Pic16f1829 , push pull (180 phase shift same duty cycle for both output, no duty cycle invert cycle by cycle) pin details below and function 1, vcc 5v (on switch) 2, fan MOSFET gate signal 3, 10k NTC tie with 5v ground resistor 10k and 100nf pf . 50c fan speed is half 50c -80c full speed above 90c engage fault and run fan 100% 4, mclr ground with 100nf pf 5, 25khz push PWM closed loop with pin 14 adjust duty cycle according to output keep stable voltage max duty cycle 45% 6. 25khz pull PWM 180 phase shift output of pin 5 same duty cycle no invert out . Closed loop with pin 14 max DUTY CYCLE 45% 7, on ok green led signal 8, 190khz 50% fixed duty cycle no distrub perfect and clean 9. Nc 10, fault led signal . pin14 95v fail continuous on, temperature fail twice blink break repeat, 3 b...

I’m developing a next-generation Bitcoin miner, internally labelled “400,000,” and I need an engineer or small team to drive the research-and-development phase. My priorities are clear: push Energy efficiency as far as current silicon will allow, unlock higher Processing power than today’s leading rigs, and experiment with new or optimised Mining algorithms. I also want the design to remain flexible enough to switch over to Bitcoin Cash should comparative profitability shift. At this stage the unit’s final home is undecided—my form literally says “Dinner,” which simply means I’ll be bench-testing the prototype in an ordinary room rather than a purpose-built data centre. Noise, thermal load and power draw therefore have to stay within l...

The existing board is finished and working; the only task still open is replacing two connectors: • Change the current USB connector to a USB-C footprint that I have already created. • Replace the end-of-board black connector with an IDC-Connector-2x3 footprint, also ready to drop in. All footprints are tested in KiCad, Altium, and the other common suites, and the complete Altium project files are available for reference. No further layout changes are required, and I do not need help with assembly. Deliverables I expect: 1. Updated schematic symbols pointing to the new footprints. 2. Cleaned-up PCB layout reflecting the two swaps, DRC-error-free. 3. Gerber/ODB++ plus native design files in whichever major tool you prefer (Altium, KiCad, etc.). Once these files are d...

أرفقت جدول الكميات الكامل لمشروع مختبرات داخل المملكة وأحتاج إلى مهندس تكاليف متمرس في السوق السعودي ليضع تسعيراً دقيقاً لكل بند بالريـال. سأعتمد عليك بشكل خاص في ضبط أسعار الأعمال الميكانيكية والكهربائية بما يعكس أحدث أسعار أنظمة التكييف، التبريد، القوى، إنذار الحريق، والتيار الخفيف المتداولة حالياً. ما أحتاج استلامه هو ملف Excel (أو مخرجات CCS Candy) يحوي: • سعر الوحدة وإجمالي كل بند شاملاً التوريد والتركيب والاختبارات والتشغيل. • تحليل تفصيلي يكشف مكونات السعر من مواد، عمالة، معدات، ومقاولي باطن. • جدول منفصل يمكن تعديل نسب المصروفات غير المباشرة، الاحتياطيات، وهامش الربح فيه بسهولة. • عروض أسعار موثّقة من الموردين لجميع البنود المتخصصة والرئيسية، مع ذكر مصدر السعر وتاريخه. إذا كانت لديك خبرة فعلية مع مشاريع المختبرات، معرفة مورّدين محليين، وقدرة على تسليم ...

Quiero desarrollar una placa basada en ESP32 que integre un módulo celular para un prototipo de producto. Necesito que el diseño contemple: • Esquema eléctrico completo, layout de la PCB y archivos Gerber listos para fabricación. • Integración del ESP32 con un módem que permita conectividad a través de tarjeta SIM. • Selección, optimización y “matching” de la antena — cuento con flexibilidad para antena interna o externa mientras se garantice un rendimiento fiable. • Lista de materiales (BOM) con componentes disponibles en el mercado y alternativas. • Recomendaciones de pruebas de certificación (FCC/CE u otras) y buenas prácticas de diseño para cumplirlas....

Je vais construire un immeuble de 10 logements en Mauritanie et j’ai besoin d’un ingénieur en bâtiment capable d’intégrer énergie solaire, HVAC et électricité dans un seul plan cohérent. Objectifs techniques : • Calculer la charge solaire pour chaque appartement, puis pour l’ensemble de l’immeuble. • Évaluer la charge HVAC, avec et sans isolation, afin de comparer l’impact thermique. • Établir la consommation standard d’un logement type (éclairage, petits appareils, etc.). • Dimensionner un système photovoltaïque 48 V autonome, idéalement en légère surproduction pour couvrir les pointes et prévoir l’extens...

I am looking for an expert Electronics Design Engineer to review, optimize, and finalize a draft KiCad schematic for a custom, battery-powered audio logging device. The core architecture relies on an ESP32-S3-WROOM-1-N16R8-1U module paired with a TDK T5838 digital microphone featuring Acoustic Activity Detection (AAD). The device operates primarily in an ultra-low power standby mode: the ESP32-S3 stays in deep sleep with Wi-Fi completely turned off, while the TDK T5838 remains always-on to monitor the acoustic environment. When a sound trigger occurs, the microphone must wake the ESP32-S3 using an AAD interrupt (via D1, D2, or Analog AAD mode) to record audio onto a microSD card. The ESP32-S3 will wake up its Wi-Fi radio only during a specific, firmware-defined time window to transmit the ...

We are looking for an experienced Sourcing Agent / Procurement Officer with a technical background in Electrical Engineering, Electronic Engineering, or a related discipline. The selected candidate will support a one-time sourcing and procurement project involving electronic components, AI hardware, computing equipment, and related materials. Responsibilities: - Source and identify suitable electronic components and AI hardware - Research and evaluate potential suppliers - Compare pricing, availability, and delivery terms - Support procurement and supplier communication - Identify technically compliant alternatives where required - Review BOMs, datasheets, and technical specifications Expected Deliverables: - A qualified supplier shortlist - A clear comparison of pricing, lead times, ...

Max bid is 45 ### Project: Modify Existing Dispenser PCB for RS485 Communication We have an existing PCB for a specific fuel dispenser brand (XYZ), as shown in the attached image. It connects to the dispenser through four differential communication wires: RX+, RX−, TX+, and TX−, and currently converts the communication to USB. **The objective is to replace the USB interface with RS485 while retaining the existing PCB and dispenser-side circuitry as much as possible.** ### Scope of Work - Analyze the PCB and identify the USB controller and the communication signals between the USB controller and the existing four-wire interface circuit. - Determine the appropriate signal points where the USB communication interface can be bypassed or replaced. - Connect those signals to a sui...

Two of my grill-sensor cables lost their 3.5 mm tips when the plugs were yanked out. The conductors are still intact, so the job is a straightforward re-termination: remove the damaged ends, solder on brand-new 3.5 mm connectors, and add proper strain relief and heat-shrink so the leads can handle outdoor use. I don’t yet have the replacement plugs and would appreciate your guidance on the exact TRS/TRRS style and brand that will mate cleanly with the grill’s jack. Once I order (or you supply) the parts, I’ll ship the cables to you—or, if you’re local, drop them off—to have the work done. Deliverables • Two fully functional cables with new 3.5 mm connectors, electrically verified for continuity and short-free operation • Photo (or brief vid...

I need a complete design package for an LLC resonant converter that can charge a light-load capacitor to 1 kV in no more than 200 µs while keeping the primary current below 5 A. The magnetic component is fixed (Coilcraft FL2810-1LD), and I have already decided on a half-bridge topology, though I am open to brief notes that compare it with a full bridge if this materially improves performance. The work must cover the entire path from theory to verified LTspice waveforms: • Detailed report with full calculations that prove the 200 µs charge time, including reflected-load analysis, magnetizing requirements, and loss estimates. • Feasibility study quantifying how the 5 A primary side limit is maintained across the 5 V – 28 V input range. • Selection and sizin...

Title: Mechatronics Engineer needed to build custom 6mm Rubber Profile Cutting Machine (Arduino + Nextion UI) Project Description: We are seeking an experienced Mechatronics / Embedded Systems Prototyping Engineer to design, program, assemble, and test a benchtop automated cutting machine for a solid, 6mm rubber profile. The machine must operate standalone via a user-facing touchscreen interface. Required Technical Features: 1. Interface: Nextion 3.5" Discovery Touchscreen (for entering cut length in mm and batch quantity). 2. Controller: Arduino Mega 2560 R3. 3. Feeding System: Dual synchronized polyurethane-coated pinch rollers driven by a NEMA 23 stepper motor to ensure a tension-free feed (preventing material stretching). 4. Cutting Mechanism: A high-speed blade actuator (pne...

I’m developing a next-generation padlock that couples robust physical security with modern electronics. The core idea is a tamper-resistant body housing a low-power PCB that supports BLE unlocking, RFID credential reading and an always-on GPS module. A compact solar panel must keep the cell topped up so the lock can sit in the field for long stretches without manual charging. Here is the outline I need your help bringing to life: • Electronics: choose components, lay out the PCB and write the embedded code so the lock wakes only when needed, yet still logs location pings. Expect Nordic-style BLE, an ultra-low-power GPS, RFID reader IC, power-path management and secure element for key storage. • Power strategy: harvest energy from the solar cell, switch gracefully to an ...

Hi I will share the details with the shortlisted candidates. Thanks

I'm looking for an experienced electronics engineer to develop a balance charger and discharger specifically for RC drones. The charger should support LiPo and Li-ion batteries, with a maximum voltage of 16.8V. Key Requirements: - Balance charging and discharging functionality - Support for LiPo and Li-ion battery types - Maximum voltage support of 16.8V - Suitable for RC drones - The user should be able to select the battery type, battery cells(1s,2s,3s,4s), calibrate voltage, modes such as quick charging/balance charging/discharging/storage charging. - The user should also be able to select the current. Ideal Skills and Experience: - Expertise in battery management systems - Expert in RC battery such as LiPo and Li-ion battery - Knowledge in embedded systems - Knowledge designing ...

Instalador de alarmas comunitarias con 14 años de experiencia en Chile. Desarrollo una central de alarma comunitaria propia y busco ingeniero electrónico con experiencia en potencia y RF para validar el diseño antes de fabricar las placas armadas (PCBA) en China. EQUIPO: central en gabinete metálico sobre poste, a la intemperie. Se activa con control RF o llamada; hace sonar sirena, enciende baliza y envía SMS. Hasta 250 usuarios, 50 reciben SMS. Panel web para administrar usuarios. HARDWARE: - ESP32 - SIM7600 4G (llamadas y SMS) - Receptor E07-M1101D (CC1101) 433 MHz ASK/OOK, controles de código fijo EV1527/PT2262 - Driver discreto de sirena y 2 relés - Batería 12 V 7 Ah - Antenas fuera del gabinete con SMA pasa-muro REVISAR: 1. E...

We are a Venezuelan engineering company developing an electric immersion heater for extra-heavy crude oil (tubular sheathed elements, U-shaped hairpins, in an ASME VIII pressure vessel). The thermal design is already done. We need an experienced heat-transfer / process engineer to REVIEW it and give an independent opinion — not to design from scratch. ▎ ▎ Service: ▎ - Crude: ~8 °API (Orinoco Belt), highly viscous, with 20–50 % emulsified water ▎ - Heating 70 → 85 °C, line pressure ~4.5 barg (design 10 barg / 200 °C) ▎ - Two models: 100 bbl/d (~9.5 kW) and 600 bbl/d (~53 kW) ▎ - Incoloy 825 sheath, Ø 0.475", no baffles (natural convection dominated) ▎ ▎ Questions to answer: ▎ 1. Is a watt density of ~1.5–1.7 W/in² reasonable for this servi...

I’m opening up a Score 7T (Keefe Group) tablet built on the MediaTek MT8168, board id tb8168p1_bsp, and I need to force it into BROM mode by shorting the correct test points on the motherboard. I’ve done a few hardware-point jobs before, so I understand basic safety and ESD practice, but I want to follow an exact, proven sequence this time. What I expect from you • A clear, step-by-step set of written instructions—my preferred format—covering disassembly, test-point identification (CLK/DAT0 or any pad combination that actually works on this board), timing of the short, and verification with mtkclient. • High-resolution reference photos or annotated diagrams of the Score 7T PCB highlighting the precise spots to short. • Any firmware-side preparati...

Necesito un esquema y PCB completos en EasyEDA que integren los siguientes módulos y funciones: • Slot compatible para los módulos Lilygo SIM7000G y A7670SA. • Dos INA219 independientes: uno para medir la batería y otro para el panel solar. • Regulador de carga solar MPPT CN3791 para paneles de 6 V (entrada dedicada). • Sensor ToF VL53L1X integrado en la placa más un conector para una versión externa. • Cargador de batería basado en TP4056 con sus protecciones. • Conector para batería 18650 y, adicionalmente, para batería Fanso. • Encendido controlado mediante reed switch y MOSFET. • Elevador MT3608 fijado a 5 V. Dimensiones deseadas de la tarjeta: 110,54 mm × 32,89 mm (pue...

I'm looking for an individual freelancer or small workshop to build a simple, one-off working prototype for a project. My budget is around ₹10,000. The concept is a machine that heats medicinal leaves and draws the smoke through a filter into a small chamber, with controlled release through a valve. I have a concept sketch to share. I need help with the engineering, safe design, fabrication and testing. This is for a one-time project submission, so the prototype can be made by modifying existing devices available in the market - whatever keeps it simple and under budget. Please let me know whether you can build this within the budget, what would be included, and what details you need to assess feasibility.

My preferred candidate would be a control-engineering researcher or experienced industrial research engineer, ideally with a PhD in control systems, electrical engineering, mechanical engineering, systems engineering or a closely related subject. Equivalent practical experience is acceptable; a PhD alone is not enough. Skill What I would require Control systems and optimisation Practical experience implementing and evaluating model predictive control, including constraints, changing workloads and switching costs. Python and reproducible simulation Ability to inspect numerical code, install a documented environment, rerun experiments and preserve configurations, logs and results. Experimental design and statistics Ability to assess fair comparisons, held-out testing, uncertainty, correlated...

I want to make a dissertation project on EV charger with some topology and control scheme with adaptive current control

I need an experienced ABB service engineer who can come to our plant, access both the ACS 800 and ACS 5000 series drives, pinpoint whatever is tripping them and get us running reliably again. The job is entirely on-site; I will arrange direct access to each VFD cabinet and any schematics you might request. Standard plant safety rules apply—nothing beyond the usual PPE and lock-out procedures. Your task starts with a full diagnostic: download fault logs, inspect power sections, check cooling, and verify parameter sets against ABB recommendations. Once the root causes are clear, I expect you to carry out or guide the physical repairs—whether that involves component replacement, board swap-outs, firmware updates, or even simple parameter corrections—and then commission the ...

I'm seeking an experienced developer to create a wearable LED suit for professional stage performances. The suit should be controlled by ESP32 controllers and feature WS2812B addressable LED strips and side-glow fiber optics. Objective : Building LED-embedded costumes synced to music beats using Raspberry Pi and XLights. Each costume will have one Raspberry Pi 4 (slave), connected to 4 or more customized relay/driver boards—each controlling a specific body zone (head, arms, chest, legs). We need help configuring GPIO outputs via FPP and customizing the relay/driver boards to handle high-power LED/fiber optics/LED cloth sheet outputs, with independent control of lighting patterns for each zone. The setup must respond to a central master Pi broadcasting music-synced commands wir...

I need an experienced ABB service engineer who can come to our plant, access both the ACS 800 and ACS 5000 series drives, pinpoint whatever is tripping them and get us running reliably again. The job is entirely on-site; I will arrange direct access to each VFD cabinet and any schematics you might request. Standard plant safety rules apply—nothing beyond the usual PPE and lock-out procedures. Your task starts with a full diagnostic: download fault logs, inspect power sections, check cooling, and verify parameter sets against ABB recommendations. Once the root causes are clear, I expect you to carry out or guide the physical repairs—whether that involves component replacement, board swap-outs, firmware updates, or even simple parameter corrections—and then commission the ...

Seeking KiCad PCB Project Archives for AI Training Dataset We are looking for PCB designers, engineering teams, freelancers, and PCB design companies who have existing archives of KiCad PCB projects that they own and may be interested in licensing for AI training and research purposes. We are not looking for new PCB designs or any additional engineering work. We are specifically interested in old, completed, inactive, or archived KiCad projects that are already available. #Requirements - Minimum preferred volume: 100+ KiCad projects - Projects must be created in KiCad only - Editable source files are required - Schematic and PCB layout files should be included - Projects must be your own original work, or you must have the legal right to provide/license them - Projects must not be take...

Go through it.. Design already available here .. Want the Complete Tested Product.

I will be in Guangzhou for the Autumn Canton Fair, and I want a local sourcing partner who truly speaks the language of industrial-grade electronics manufacturing. Your role starts on the show floor: walk the Industrial Electronics halls with me, quickly spot booths whose datasheets, process capabilities and certifications match my specs, and capture clear photos, contacts and technical notes. When a sample is offered, I will depend on you to give an on-the-spot quality check, PCB workmanship, component selection, enclosure tolerances, compliance marks. I expect an advanced understanding of electronics: you should be comfortable discussing SMT line capabilities, IPC standards, reliability testing, BOM optimisation and MOQ implications with factory engineers, not just sales staff. Native-l...

I'm looking for an experienced power electronics engineer to design, build and test a single-phase synchronous buck power stage using GaN FETs. This is a test vehicle, not a product. The purpose is to measure switching behaviour, losses and temperature at high switching frequency. The scope is deliberately short and well defined. The work Single-phase synchronous buck, up to 40 A, outputs at 12 V and 48 V from an 80–120 V bus Power devices: EPC2305, two in parallel per position Gate driver: onsemi NCP51820 The design must be based on EPC's EPC90143 development board, extending its schematic and layout to the paralleled devices. EPC publishes the schematic, BOM and Gerber files Four-layer PCB, with the power loop returned on the first inner layer per EPC's layout guida...

My current audio board is built around a single amplifier stage and, while it works, the mid-range comes out sounding strained and unnatural. I want to retrofit an Automatic Gain Control IC that includes or works alongside an A/D converter so the signal path is cleaner, background noise is lower, and those mids finally feel organic. Here’s what I need from you: • Select an appropriate AGC-equipped converter (or discrete AGC + standalone ADC) that plays nicely with the existing amplifier stage and overall supply rails. • Provide a concise schematic showing how the new IC drops into the signal chain, including any necessary attack/release timing components, input protection, and level-shifting. • Supply a brief BOM with part numbers that are in stock from at least ...

I’m building a compact, modular charging station for VRLA / AGM motorcycle batteries and I need the electronics and firmware that will let riders see real-time battery health on a dedicated physical display panel. Modular battery charger for VRLA / AGM motorcycle batteries The core of the job is the health-monitoring logic rather than charge control. I want the system to track three specific parameters—voltage levels, temperature, and accumulated charge cycles—and present them clearly on a small, ruggedized screen that can be mounted on the charging dock or the bike itself. Think of it as a “fuel gauge” for the battery, always on and readable at a glance, no phone or web connection required. Key things I’m looking for: • Hardware schematic an...

TEKNISI AC (FREELANCE) Deskripsi pekerjaan Teknisi AC Deskripsi Pekerjaan: Teknisi AC bertanggung jawab untuk instalasi, perawatan, dan perbaikan sistem pendingin udara (AC) di berbagai lokasi. Posisi ini memerlukan pemahaman tentang sistem HVAC (Heating, Ventilation, and Air Conditioning) serta kemampuan untuk mendiagnosis dan menyelesaikan masalah teknis yang terkait dengan perangkat AC. Tanggung Jawab: • Melakukan instalasi sistem AC baru sesuai dengan spesifikasi dan standar yang ditetapkan. • Melakukan perawatan rutin dan pemeriksaan sistem AC untuk memastikan kinerja optimal. • Mendiagnosis dan memperbaiki masalah teknis pada sistem AC, termasuk kebocoran refrigeran, masalah kelistrikan, dan kerusakan mekanis. • Mengganti komponen yang rusak, seperti kompresor, e...