วิศวกรรมไฟฟ้า Jobs

I need a compact, high-performance microstrip antenna engineered specifically for satellite communication in the mmWave region. The goal is to move from concept through full-wave simulation to fabrication-ready files while meeting tight performance targets on gain, bandwidth, and axial ratio. Scope of work • Electromagnetic modelling and optimisation in a recognised solver such as HFSS, CST, or similar, covering the exact mmWave band that satellite links typically occupy. • Substrate selection with justifications (εr, loss tangent, availability). • Impedance matching network design to maintain ≤-10 dB return loss across the operating band. • Radiation pattern validation for both boresight gain and sidelobe levels suitable for satellite uplink/downlin...

I'm looking for an embedded electronics/mechatronics engineer to help design a very small wearable mechanical beating heart for the front of a men's suit. The visual inspiration is the Schiaparelli mechanical/crystal beating heart. This is a one-off costume/fashion project rather than a medical device. There are tutorials online of people replicating it (please search on Instagram/TikTok). I am able to design and create a mold of the heart myself but need help with the electronics/engineering side. What I need for the heart: - Be as small and lightweight as reasonably possible - Be worn on the chest/lapel area of a suit - Mechanically "beat" using a miniature 360° rotating motor and a cam/eccentric/linkage mechanism - Have an adjustable beating rate (PREFERRED) ...

I’m upgrading my house to a fully connected smart-home and need an experienced electrician who is comfortable with residential automation from the breaker panel right through to the phone app. Scope of work • Smart lighting • Security systems (cameras, sensors, alarms) • Climate control (thermostats, smart vents, HVAC integration) • Any additional automations you believe will improve convenience or energy efficiency The job starts with a review of my current wiring and a clear plan for how the new low-voltage and mains runs will coexist safely. I expect neat cable management, labelled circuits, and compliance with all local codes. You’ll specify the hubs, switches, relays, and controllers—whether that ends up being KNX, Lutron, Zigbee/Z-Wave,...

Suggested Job Title: Expert / Former OEM Specialist – Turbine Component Manufacturing & Supplier Network Development Expert in Gas & Steam Turbine Component Manufacturing, Supplier Network Development & Industrial Relations Project: Feasibility Study and Development Project for Manufacturing Selected Gas & Steam Turbine Components We are seeking an expert with hands-on experience in the gas and steam turbine spare parts industry, a manufacturing consultant, or an industrial business development expert to assist in developing a potential project for manufacturing selected turbine parts and components. Specifically, we are looking for a professional with real, established, and verifiable relationships with manufacturers, suppliers, turbine maintenance, repair, and o...

I have two completed electrical drawings that were originally produced in Stardraw. All I now need is a tidy-up of the wording inside them: some component labels and a few notes have changed since the last revision. Unfortunately, I only have the current drawings as PDFs/images, so the first step will be to open or re-create them in Stardraw before making the annotation changes. Please keep the physical layout and symbols exactly as they are; the task is limited to correcting and updating the text that sits on the page. Once the edits are finished, send back the native Stardraw files along with fresh PDFs so I can circulate the new version immediately. If this is straightforward for you in Stardraw, let’s get started right away—I can share the PDFs and a marked-up list of...

I already have the architectural plans and elevations for a mid-size residential project. What I now need are the full Mechanical, Electrical, and Plumbing layouts completed so the drawings can move straight into construction. The blueprints should include full architectural details and specific features such as: - Electrical schematics - Plumbing layout - HVAC system plans Ideal skills and experience: - Proficiency in architectural design software - Experience in creating detailed blueprints - Knowledge of electrical, plumbing, and HVAC systems - Attention to detail and accuracy If you have experience delivering complete residential MEP sets and can demonstrate that in your portfolio, I’d be happy to hear how soon you can begin.

Overview: Qgen Engineering is a US-based hardware and software company. We're looking for an experienced electrical engineer to perform an independent design review of four board designs before we commit to fabrication and volume builds. This is a review engagement — no layout, firmware, or redesign work required. Boards in scope: - Carrier board — carrier for a commercial ARM SODIMM compute module (TI AM62P-class, 1.8V-only I/O domain). Includes a MIPI-DSI display interface with capacitive touch, switched peripheral rails, Ethernet, USB, RS-485, I2C peripherals, PWM/tach fan control, and a JTAG/UART debug header. 24V input. - Power board — system power input and distribution. - Sub control board — a control board driving inductive and high-voltage loads from ...

# Custom PCB Design for Camera Smart Glasses I am looking for an experienced **embedded hardware/PCB designer or engineering firm** to design a complete PCB for camera-equipped smart glasses capable of **still photo capture and live video streaming**. ## SoC The designer can select the most suitable SoC from: * **Allwinner V821** * **Rockchip RV1103** * **Rockchip RV1106** Please recommend the best option based on **camera/MIPI support, power consumption, thermals, USB capabilities, software/SDK support, availability, and PCB complexity**. Reference designs that may be used include **LicheeRV Nano, Luckfox Pico Mini, and Avaota F2**. ## Core Requirements * Single onboard **Sony IMX or equivalent camera**, minimum 1080p * MIPI CSI-2 camera interface * Still photo capture + live vide...

I need a skilled PLC programmer to develop a control system for an oil project. The PLC will be a Siemens model and will handle flow control and low-level sensing. Key Requirements: - Flow control management - Low-level sensor integration - Interface with sensors, actuators, and HMI Ideal Skills and Experience: - Proficiency in Siemens PLC programming - Experience with flow control and sensor integration - Familiarity with HMI and actuator interfacing Please provide relevant experience in your bids.

I have written a MATLAB code for the optimization of a battery swapping station (BSS) for a bus fleet for scheduling its charging to minimize its cost. I have made the same code on GAMS also. This code is for a 24 hour period and for 11 buses and 4 batteries on the BSS. My code is perfectly working when I am running it for 10 hours, 2 batteries on BSS and 3 buses. But when I am increasing the number of hours or buses or batteries then it start taking a more than 3-4 days to run and still running. I know in my problem, the number of variables and constraints are not much and GAMS has the capability to solve problems with millions of variables but why not in my case? How can I solve this issue. I'm seeking an expert in MATLAB and GAMS programming to optimize a code for a battery swap...

Potrzebuję funkcjonalnego prototypu niewielkiego systemu, który bezprzewodowo poinformuje o obecności osoby w pomieszczeniu. Co musi zrobić urządzenie • Czujnik ruchu PIR, zasilany wyłącznie baterią, wykrywa obecność. • Wskaźnik LED przy drzwiach – również zasilany z baterii – automatycznie zmienia kolor, gdy czujnik coś wykryje lub gdy pomieszczenie znów jest puste. • Między elementami nie może być żadnego okablowania; komunikacja ma być w pełni bezprzewodowa. Kluczowe wymagania • Bardzo niski pobór energii – zależy mi na długiej pracy na jednym komplecie baterii. • Stabilna, odporna na zakłócenia łączność (BLE, Zigbee, Sub-GHz lub inne rozwiązanie, które zaproponujesz). • Kompaktowe wymi...

Hi,I am building the DefendX Tactical Smartwatch. I need an expert hardware engineer to design the board completely from scratch—starting with component selection and schematics, all the way through 4-layer PCB layout and physical lab testing. Project Requirements (42×42 mm, 4-Layer Board): Core: ESP32-S3 (Compact module like the MINI series). Radios: Wi-Fi/BLE, Sub-GHz LoRa (e.g., SX1262), and GPS (e.g., SIM68M). Sensors: Biometrics (HR/SpO2 + Temp) placed wrist-facing on the bottom layer, plus a 9-axis IMU and Compass. Power & Storage: LiPo battery management (with a central cutout pocket on the PCB for the battery) and SPI NOR Flash. Your Scope of Work: BOM Selection: Pick reliable components that are actively in stock at JLCPCB/LCSC. Schematics: Design the ...

I’m preparing to install a full-scale commercial solar array and need a seasoned designer who can take the project from an on-site assessment through to stamped construction drawings. The first priority is a thorough site visit: shading analysis, load profiles, roof and ground-mount feasibility, and interconnection options must all be documented. From that data you’ll develop the optimal system layout, electrical single-line diagram, production estimates, and a bill of materials that aligns with local code and utility requirements. Please fold any permitting nuances or utility coordination steps into your plan. When you respond, attach a detailed project proposal that breaks down your methodology, key milestones, and the software you rely on (Helioscope, PVsyst, AutoCAD, Sk...

I have a junior engineer building the early schematics for an asset-intelligence prototype and I need an experienced embedded-systems specialist to guide the hardware design, write the firmware, and get the first units reliably streaming data to the cloud. The boards must interface with temperature, pressure and motion and more sensors, carry out real-time analysis, perform basic filtering, then aggregate and compress the packets before they leave the device. Security on the wire is non-negotiable, so please be comfortable implementing encrypted transport and key management on resource-constrained MCUs. You will collaborate directly with us on: • Selecting the optimal MCU / wireless stack and finalising the schematic • Integrating the three sensor types and validating their ...

I am fitting out a 5,200 sq ft unit that will operate as a clinic and I need a complete drawing package that the local health authority can approve without revisions. The scope begins with the architectural layout—every wall, door, and piece of furniture must be shown exactly as the authority requires—then moves straight into the full MEP design. First, I need the submission set that secures the clinic licence: floor plans, reflected ceiling plans, furniture layout, and any other sheets the authority checklist demands. Once that approval is in hand, we will move to the coordinated MEP package covering HVAC, plumbing, electrical, and the related ceiling modifications. All work has to follow the local health authority standards; familiarity with their usual comments and red-line...

I’m building a self-contained DJ-style effects controller that lives entirely on an STM32 with its on-chip ADC/DAC. The unit must stream stereo audio, generate notes, and manipulate that signal on the fly. I already have a rough hardware concept; what I’m missing is the specialist who can marry fierce real-time DSP with a production-ready board. Here’s the core of what you’ll tackle: the firmware must deliver reverb, delay and distortion simultaneously, reacting to automated real-time parameter changes rather than simple on/off triggers. Latency has to stay imperceptible and all processing must run directly on the MCU (no external DSP). I’d like the algorithms written in C/C++ using STM32CubeIDE and, where helpful, CMSIS-DSP or ARM’s Hel libraries, but ...

I’m building a self-contained DJ-style effects controller that lives entirely on an STM32 with its on-chip ADC/DAC. The unit must stream stereo audio, generate notes, and manipulate that signal on the fly. I already have a rough hardware concept; what I’m missing is the specialist who can marry fierce real-time DSP with a production-ready board. Here’s the core of what you’ll tackle: the firmware must deliver reverb, delay and distortion simultaneously, reacting to automated real-time parameter changes rather than simple on/off triggers. Latency has to stay imperceptible and all processing must run directly on the MCU (no external DSP). I’d like the algorithms written in C/C++ using STM32CubeIDE and, where helpful, CMSIS-DSP or ARM’s Hel libraries, but ...

I need a complete DELTA PLC program that drives an automated motor-control setup. The job is centred on two core functions—precise speed regulation and repeatable position control—so the logic must switch cleanly between the two operating modes and hold accuracy under changing loads. All field devices and the PLC hardware are already wired and live; what is missing is the ladder/structured-text code, parameter mapping and a short commissioning guide so I can load, test and fine-tune on site. Please incorporate any standard DELTA libraries you normally use, make all tags and rungs easy to read, and add inline comments so future tweaks stay simple. Deliverables: • Finished DELTA PLC program file • Brief documentation showing I/O map, parameter blocks and step-by-ste...

I’m updating a project and need complete electrical and architectural blueprints produced from my sketches and notes. The architectural side should show walls, doors, windows, levels and dimensions in clean CAD format. On the electrical side I must see three things clearly layered: • Wiring diagrams showing conductor gauge and routing • Lighting plans with fixture symbols, switching and load schedules • Circuit layouts that align with the panel schedule I’ll supply All drawings have to be delivered as editable DWG (AutoCAD) plus PDF sheets ready for permit submission. Accuracy to standard scale is essential and every sheet should carry a legend, north arrow and title block with my project data. I’ll provide existing floor plans, field measurement...

I'm seeking an experienced PCB designer to create a complex, multi-layer schematic for an industrial radio. The schematic will incorporate analog, digital, and mixed-signal components. Key requirements: - Design complex, multi-layer PCB schematics - Incorporate analog, digital, and mixed-signal components - Experience with industrial equipment is a plus - Proficiency in PCB design software (e.g., Altium, Eagle) Ideal candidates will have a strong background in electronics and a proven track record in similar projects. Please provide samples of previous work.

I’m building a compact board whose sole mission is clean, reliable power distribution. I already have the system requirements mapped out at a high level; now I need an experienced PCB and embedded engineer who can turn those requirements into production-ready hardware and firmware. The job covers the full design flow: capturing the schematic, creating the PCB layout with attention to thermal paths and EMI, selecting components for efficiency and availability, and writing the embedded code that supervises voltage rails, fault flags, and soft-start logic. I expect good engineering practices—proper net-naming, clear documentation, and design files that open without issue in KiCad or Altium. Deliverables • Complete schematic (PDF + source) • PCB layout files and Gerbe...

JP Visual Ads – Kanchipuram is looking for an experienced LED Video Wall Technician on a PROJECT BASIS. This is NOT a full-time job. We will contact the technician whenever we receive a customer order or LED video wall project. The technician should be available to come to the project site when required and complete the installation, setup, operation, troubleshooting and dismantling work. LOCATION: We prefer technicians based in Kanchipuram or Chennai, or nearby areas who can travel to Kanchipuram/Chennai project locations when required. WORK REQUIREMENTS: * LED video wall installation and dismantling * Mounting LED panels/modules and building the required frame * Power and data cable connection * Processor/controller setup and configuration * Basic LED display troubleshooting * S...

My living room and bedroom are ready for an upgrade with profile lighting that delivers a bright, vibrant feel. I already have a few sketches and reference photos, but I still need a professional eye to translate those ideas into a safe, code-compliant plan and then carry out the full installation. Here’s the flow I have in mind: • Collaborate with me on the final layout, channel placement and dimmer/switch positions so the light washes evenly across walls and ceilings without glare. • Advise on the best aluminium profiles, LED strips (colour temperature 4000-4500 K), drivers and connectors to match the desired brightness. • Supply, install and neatly conceal all wiring, making sure both rooms run on separate, protected circuits. • Test every run, adjus...

I need a freelancer to help locate the source of radio signal interference in an urban environment. Requirements: - Use triangulation techniques to pinpoint interference source - Work in complex urban settings with potential obstructions - Provide detailed reports on findings Ideal Skills: - Experience with radio frequency (RF) technology - Familiarity with urban signal behavior - Strong analytical and reporting skills

I need expert assistance with wiring and ladder logic coding in EcoStruxure for my wind and solar hybrid project utilizing the following components: - Siemens S7-1200 PLC (CPU 1212C DC/DC/DC – 6ES7212-1AE40-0XB0 or equivalent) - 24 VDC DIN Rail Power Supply (2.5 A) - 20 W, 12 V Monocrystalline Solar Panel - 12 V, 30 W Permanent Magnet DC Wind Turbine Generator - 12 V, 12 Ah SLA/AGM Battery - 12 V, 10 A PWM Solar Charge Controller - Schottky Blocking Diodes (10 A, 45 V) - Inline Blade Fuses (15 A) - 24 VDC Relay Modules - 12 V, 10 W LED Load - 5.6 Ω, 50 W Dump Load Resistor - Voltage Divider Resistors for voltage sensing - DIN Rail Terminal Blocks and Accessories - DIN Rail, DC MCB (optional), and Emergency Stop Push Button - Required wiring, connectors, ferrules, cable glands,...

I have a car park that must allow controlled entry and exit for cars, motorcycles, and trucks. The main goal is access management, not simply traffic flow or high-security lockdown, so the design has to prioritise smooth user experience while still preventing unauthorised use. Here is what I need from you: • A clear, scaled layout showing optimal positioning of the entry and exit lanes, barrier arms, island kiosks, and safety zones. • Full integration notes for an automated ticketing system, including where ticket dispensers, readers, and loop detectors should sit so every vehicle type—from a motorcycle to a semi-trailer—can collect or validate a ticket without awkward reach. • Equipment specifications (height, boom length, operating angles, power requireme...

Project Title 800 V / 400 A Pulsed Constant-Current Power Supply – Design Team Project Overview We are seeking an experienced power electronics team to design an 800 V / 400 A pulsed constant-current PSU, including full system architecture, simulation, schematic design, PCB layout, and EMI/EMC compliance. This is a high-power HV pulsed system requiring proven expertise in SMPS design, SiC/IGBT power stages, magnetics, high-current PCB/busbar engineering, and EMI/EMC mitigation. A multi-disciplinary team is strongly preferred. --- System Requirements - Input: 3-phase, 380 VAC, 50 Hz - Output: Pulsed constant current - Max voltage: 800 V - Max current: 400 A - Load: 2 Ω - Current accuracy: ±1% - MCU-based pulse control - Controlled rise/fall tim...

I’m upgrading a material-enrichment line that includes tag extraction, floc separation and a draft bill of materials. The immediate goal is to translate what I already have into a fully workable enrichment process: confirm the flow, size and specify each piece of equipment, and document operating parameters so procurement and commissioning can begin right away. You will: • Validate and optimise the enrichment stage, integrating tag-extraction and floc-handling steps. • Deliver a process flow diagram, refined equipment list/BOM and concise operating guidelines suitable for hand-off to my purchasing team. I’m moving fast, so only reply if you can start immediately. Point me to past work on comparable enrichment or separation systems—those references will decide ...

need a DDR4 PCB layout designer. The job covers the full physical layout, tuned for high-speed signal using Mentor tool PADS PCB.

I need a full EasyEDA project—schematic and routed PCB—for a tiny Atmega32U4 board that lets a computer drive a single external LED through a 3-pin XH-JST connector (GND / 5 V / LED). The board must talk and be programmable over a horizontal USB-C port and should remain as small as practical without sacrificing good layout practice. Core requirements • EasyEDA schematic using the Atmega32U4, including crystal or resonator, USB-C E-Markers (where needed), ESD protection, boot-cap circuitry and the standard reset network. • Break-out to one XH-JST-3 plug clearly silkscreened with the GND, +5 V and LED symbols. • Primary power supplied by USB-C 5 V rail. • Firmware that gives basic functionality: detect USB power, expose the MCU as a simple USB HID to ...

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I'm looking for a creative solution to enhance safety during outdoor soccer/football games. The project involves creating a pressure pad alarm using thermoformed plastic sheets and electrical tape. Key Requirements: - Design and construct a pressure pad alarm system. - Use of thermoformed plastic sheets and electrical tape. Ideal Skills and Experience: - Experience with electrical components and alarms. - Proficiency in working with thermoformed plastic. - Strong problem-solving skills and creativity. - Background in sports safety equipment is a plus.

This commission covers the complete civil and electrical design for a new car-park entrance and exit. The foremost priority is an entrance/exit barrier layout that makes access effortless for every user, so circulation paths, island positioning, and reader heights must all meet current UK accessibility guidance. Scope of work • Develop a coordinated site plan showing vehicle circulation, barrier islands, payment machine location, queuing space and pedestrian routes. • Design foundations, groundworks, ducting and cable routes, then size power and data wiring right through to equipment terminations. • Produce construction-ready drawings and notes that satisfy UK Building Regulations, BS 7671, DDA/Equality Act provisions, and all applicable health & safety standard...

Salut, Caut electrician autorizat pt dimensionare,transport, instalare sistem fotovoltaic pt o casa la curte cu 2 corpuri de cladire cu un consum zilnic in medie de 16kwh Vreau un sistem ales de dumnevoastra cumparat si transportat si instalat(off-grid) tot de catre dumneavoastra cu tot ce trebuie. Stau la casa la curte Bucuresti,Sector 1. Ma gandesc ca la acest consum un Invertor monofazat de 5-8KW si o baterie de 15-16kw(LiFePO4, 48V) ar fi cam de ajuns Panouri(450W - 550W per panou) tot vreo 25 bucati(dar vedem cate intra pe o terasa de 40 mp avand balustrada si gresie situata la etajul 1). Distanta dintre panouri si tabloul electric(smart CEM1) variaza intre 10 si 5 m depinde de unde o masori. Vreau sa fie vara folosita intens deoarece terasa este foarte insorita dar cu back-up pe ...

Salut, Caut electrician autorizat pt dimensionare,transport, instalare sistem fotovoltaic pt o casa la curte cu 2 corpuri de cladire cu un consum zilnic in medie de 16kwh Vreau un sistem ales de dumnevoastra cumparat si transportat si instalat(off-grid) tot de catre dumneavoastra cu tot ce trebuie. Stau la casa la curte Bucuresti,Sector 1. Ma gandesc ca la acest consum un Invertor monofazat de 5-8KW si o baterie de 15-16kw(LiFePO4, 48V) ar fi cam de ajuns Panouri(450W - 550W per panou) tot vreo 25 bucati(dar vedem cate intra pe o terasa de 40 mp avand balustrada si gresie situata la etajul 1). Distanta dintre panouri si tabloul electric(smart CEM1) variaza intre 10 si 5 m depinde de unde o masori. Vreau sa fie vara folosita intens deoarece terasa este foarte insorita dar cu back-up pe ...

Project : to design Battery charger and BMS(Battery management system) Existing Battery Configuration 2 × 12V, 100Ah Sealed Lead Acid (SLA/VRLA) batteries connected in series (24V DC system) Scope of Work We require a production-ready solution comprising an intelligent battery charger and BMS for continuous industrial operation. Battery Charger (Intelligent 24V SLA battery charger) 1.⁠ ⁠Automatic Bulk, Absorption & Float charging 2.⁠ ⁠Configurable charging current 3.⁠ ⁠Temperature-compensated charging 4.⁠ ⁠Over-voltage, over-current and short-circuit protection 5.⁠ ⁠Reverse polarity protection 6.⁠ ⁠High efficiency design suitable for 24×7 operation Battery Monitoring & Protection  1.⁠ ⁠Individual battery voltage monitoring  2.⁠ ⁠Total battery bank voltage monitori...

We are developing an industrial AI camera system based on the Rockchip RV1126B processor and onsemi AR0234 global-shutter image sensors. We want to use a ready-made RV1126B SOM/core board and develop a custom carrier PCB. Our internal team will concentrate on AI and application software. The freelancer/company must handle hardware design, PCB layout, board bring-up and low-level Linux camera integration. The system will support: Two GMSL2 camera inputs One local AR0234 MIPI CSI-2 camera Three simultaneous camera streams Isolated industrial trigger input Gigabit Ethernet for compressed preview and communication 3.3 V TTL UART service/debug connection 12–24 V DC power input Proposed Architecture RV1126B SOM/core board Minimum 2 GB RAM Minimum 16 GB eMMC MAX96716A dual GMSL2 deserialize...

Repair receivers, turntables , speakers and other related stereo components

I'm seeking an experienced circuit designer to create a digital control system for a Bi Color LED Matrix. The core component of this system will be a microcontroller that can add good sound quality designed by software in which each LED will have a sound frequency. Key Requirements: - Design of an LED Matrix of 25 columns and 6 rows - Integration of a microcontroller and some quality sound. - Application focused bluetooth control systems iphone and android Ideal Skills and Experience: - Expertise in digital circuit design - Proficiency with microcontrollers - Experience in control systems for bluetooth iphone , android applications. Please provide examples of similar work.

I need two detailed round transparent interactive charts for websites or apps. One for the male body system and one for the female body system. Each chart is divided into 10 body systems with varying organ counts. Requirements: - Interactive format using MATLAB - Detailed design - Strong blue light effect for eye visualization Ideal Skills & Experience: - Proficiency in MATLAB - Experience in creating interactive charts - Strong understanding of human anatomy Looking forward to your bids!

I'm looking for a marine surveyor to inspect a used pontoon boat in Lake Wales, FL. The inspection should cover: - Hull and structure - Engine and mechanical systems - Electrical and navigation systems A test drive is not required. I need only essential findings in your report, with photos and recommendations. Ideal skills and experience: - Certification in marine surveying - Experience with pontoon boats - Attention to detail - Good photography skills for clear, informative images

Saya berencana mengganti sumber listrik konvensional dengan tenaga surya demi mendukung lingkungan. Saya membutuhkan rancangan sistem yang lengkap—mulai dari perhitungan kebutuhan daya hingga skema integrasi—dengan satu komponen wajib: baterai penyimpanan sebagai solusi cadangan dan penyeimbang beban. Ruang lingkup pekerjaan: • Analisis beban listrik harian saat ini dan proyeksi pertumbuhan. • Perhitungan kapasitas panel, baterai penyimpanan, dan komponen pendukung agar pasokan stabil siang-malam. • Layout fisik serta diagram koneksi AC/DC yang mudah diikuti teknisi lapangan. • Daftar spesifikasi teknis (tipe baterai, siklus pengisian, efisiensi inverter, dan standar keselamatan). • Estimasi waktu pemasangan, langkah pemeliharaan, serta pot...

I want an ultra-low-power driver board that can run a small E-Ink panel completely untethered. The module must expose both WiFi and Bluetooth so it can receive data from a web API or a local mobile app and refresh the screen on demand. Power autonomy is critical: in addition to a rechargeable battery the board should accept a compact solar cell and scavenge ambient 2.4 GHz energy (WiFi harvesting) to keep the system alive for months without manual charging. Core expectations • Electronics: schematic, component selection and PCB layout optimized for sub-100 µA standby, including the WiFi/BLE SoC, power-path management, solar MPPT, RF-to-DC harvester and battery protection. • Firmware: ESP-IDF/Arduino or similar code that boots, joins WiFi or BLE, pulls a JSON payload, d...

I need an AutoCAD professional to create detailed electrical drawings for an industrial factory workshop. Requirements: - Lighting layout with detailed wiring and circuits - Experience with industrial electrical schematics - Proficiency in AutoCAD Ideal Skills: - Electrical engineering background - Prior work on factory lighting layouts - Attention to detail and accuracy

My small UK business is ready to move to an AIKO ABC solar array and I need a specialist who can take me from concept to switch-on. Above all, I value peak efficiency and performance, so every recommendation must squeeze the maximum kWh out of limited roof space while keeping operating temperatures low. Scope of work • Bespoke system design: size the array, optimise panel layout, and model annual generation using the latest UK irradiance data. • Equipment specification: AIKO panels are my first choice, but please show comparative numbers for JA Solar so I can see the trade-offs. Pair the array with a smart inverter (we currently favour SolarEdge, Sigenergy or Solis) and add battery storage to capture excess daytime production. • Warranty alignment: 25-year manufactu...

I’m developing a hardware product that blends moving mechanical parts with custom electronics and need a versatile engineer to carry the concept from rough sketches to a small-batch-ready prototype. You will start by reviewing my idea, asking clarifying questions, then turning the requirements into detailed mechanical drawings and electronic schematics. From there, I’ll rely on you to choose appropriate components, model the assemblies, lay out the boards, and iterate until everything fits, functions, and can be manufactured without surprises. Deliverables • Native CAD files (STEP or similar) and clear assembly drawings • Complete electronic design package with schematics, layout, and Gerber files • Consolidated bill of materials with readily available pa...

I'm looking for an expert to design and implement a battery energy storage system specifically for solar power. The primary purpose of this system is to store renewable energy. Key Requirements: - Design an efficient battery energy storage system tailored for solar energy. - High capacity (preferably over 100 kWh). - Ensure system is scalable and durable. - Provide installation and maintenance support. Ideal Skills and Experience: - Expertise in renewable energy systems, especially solar. - Experience with battery storage technologies. - Strong background in energy system design and implementation. - Knowledge of local regulations and safety standards.

I need a lighting designer who can turn my new villa into a showcase—inside and out—in just one week. The brief covers the entire residence plus the surrounding exterior, so every room, corridor and façade must feel cohesive once the sun goes down. Indoors I want to rely mainly on hidden strip lights and ceiling-mounted spot lights. If those two layers don’t meet the task-lighting needs in certain zones, I’m open to adding linear lights for balance. Outdoors, the concept is simpler but just as important: ground-mounted fixtures ringing the villa to emphasize its architecture and create a welcoming glow from every angle. You’ll receive my CAD floor plans, ceiling heights and a few reference photos as soon as we start. From there I’m counting ...

I have a pair of Diamond-series Wharfedale speakers that I’d like professionally wired to my stereo receiver. The job is straightforward: supply or recommend the correct gauge speaker cable, make clean, secure terminations (banana plugs or bare-wire binding posts—whichever you think gives the best performance), then connect each channel to the receiver and confirm both speakers are playing evenly with no hum or phase issues. I’m not looking for placement advice—just a neat, reliable wired hookup that lets me power up and listen right away.

I’m looking to have my home’s existing electrical system brought up to scratch. The job is limited to revising the current wiring runs and the circuit-breaker setup; no full re-wire or cosmetic fixture work is needed. Key goals • Replace or re-route any wiring that cannot safely handle the present and planned loads. • Reconfigure the main panel so the breakers match the new demand and trip correctly. • Increase overall capacity to accommodate additional appliances while keeping everything fully compliant with the latest Philippine Electrical Code. Please address all safety issues you find and document how each change satisfies local standards. Final deliverables I expect are: 1. Updated single-line diagram and panel schedule reflecting new breaker siz...