Electrónica Jobs

I’m rolling out a new industrial automation line that runs on a Siemens S7-1500 PLC, and I need an experienced programmer in India who is comfortable living inside TIA Portal. The hardware cabinet is already wired; the next step is to build the PLC logic, design the HMI, and prepare the Wincc 8.1 SCADA so we can move straight into commissioning without delays. What I expect from you • A clean, modular STEP 7 program for the S7-1500, fully commented and ready for online download • HMI screens developed in TIA Portal that mirror the plant workflow, including alarms, trends, and user-friendly navigation • All tag mapping, data blocks, and communication settings documented for seamless SCADA integration • A commissioning guide with I/O list, safety interlock...

I’m developing an ultra-thin heated glove that feels no bulkier than a regular winter liner yet warms the wearer’s hands rapidly and evenly. To get there I need help moving from concept sketches to a working prototype I can put through real-world testing. Here’s what I already have and what I still need: • Concept drawings that illustrate overall look, target thickness (≤3 mm excluding battery) and desired heating zones along fingers and back of hand. • Preliminary research on micro-film resistive heaters, flexible lithium-ion pouch cells, and low-profile USB-C charging circuits. You would handle the technical integration—selecting the thinnest safe heating element, embedding it into a comfortable textile stack, designing a compact power/controls m...

I am automating a three-pump pressure-boosting skid and have chosen a Delta PLC paired with a Delta DOP-series HMI plus a single VFD that will rotate between the pumps. The job covers the full PLC logic and matching HMI screens. System requirements • Three pumps share one VFD. Each pump needs on/off sequencing, variable-speed capability through the drive, and individual fault monitoring (overload, dry run, VFD trip, etc.). • Duty/stand-by rotation adjustable from the HMI. • Lead/lag logic must maintain set-point pressure with PID control in the PLC. • Delta HMI should show real-time water-pressure values and clear pump status/alarms; space can be reserved for future energy-consumption data. • Manual mode with local start/stop, plus auto control from the ...

We are looking for an experienced electronics / embedded hardware freelancer to help assemble and test 5 pilot units of an ESP32-S3 based IoT mini controller. The PCB/PCBA boards are already designed and manufactured by JLCPCB. The firmware file is also ready. This project is not for PCB design and not for firmware development from scratch. The main task is physical assembly, firmware flashing via USB-TTL, and basic bench testing. The final goal is to prepare 5 working pilot units in the correct order: Milestone 1: Assemble, flash and test 1 pilot unit first. Milestone 2: After the first unit is validated successfully, assemble, flash and test the remaining 4 units using the same process. Scope of work: * Mount the PCB/PCBA into an IP65/IP66 enclosure * Connect the external Wi-Fi an...

More details: Which software tool should be used to recreate the schematic? Altium What information should successful freelancers include in their application? Experience Do you have any specific requirements or standards that the schematic must adhere to? Industry standards

Electrical Inspector Mount Pleasant, PA Role Description This is a onsite role for an Electrical Inspector based in Mount Pleasant, Electrical Inspector will be responsible for conducting thorough inspections of electrical systems to ensure code compliance, safety standards, and proper functionality. Key tasks include evaluating blueprints, preparing inspection reports, troubleshooting electrical systems, and collaborating with contractors and other professionals to address and resolve issues. HV Circuit Breaker Inspection & Testing • Perform detailed visual, mechanical, and electrical inspections of high-voltage circuit breakers (4 kV – 500 kV class) in substations, industrial facilities, and utility environments. • Execute and interpret diagnostic tests i...

I need a precise, low-resistance solder joint made on the battery leads of my drone. The task is straightforward: take the existing electrical wire coming from the battery pack and solder it securely to the designated battery connection pads/connector on the airframe. A clean, shiny joint with proper strain relief is crucial so the connection can handle both current spikes and the vibrations that come with flight. Bring whatever tools you feel most confident with—a temperature-controlled iron, fine rosin flux, decent solder (60/40 or lead-free is fine if you’re comfortable), and heat-shrink tubing for insulation. Once the joint is complete, I’ll do a quick continuity and voltage drop test; as long as it passes and looks solid, the job is done. If this is something you c...

I need a senior-level electrical engineer who can split time between working remotely and being on site in Orange County, CA. The project centers on motor-control electronics, so every board you design must reliably drive, sense, and protect a variety of motors under real-world loads. Here’s the flow I expect: • Draw the schematic and capture the BOM for a new motor-control PCB, selecting components that meet cost, thermal, and EMI constraints. • Lay out the board for manufacturability, noise immunity, and serviceability, then generate all fabrication and assembly files. • Oversee prototype builds, bring the hardware up in the lab, and run functional, thermal, and load tests with my existing motor rigs. • When issues surface, dive into trace analysis, osci...

I have just purchased my neighbour’s central air-conditioning system and need a qualified HVAC professional to handle the entire transfer. The unit must be carefully dismantled at the neighbour’s property, moved next door, and fully installed at my single-family home. Once in place, I also want it tested, charged if necessary, and given a quick maintenance check so I know it is running at peak efficiency. You will receive the exact brand and model details upfront so you can bring the right fittings, line-set length, refrigerant, and electrical hardware. The two houses sit side-by-side with unobstructed driveway access, which should make transport straightforward; however, I still expect proper recovery of any remaining refrigerant, safe handling of electrical connections, and ...

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I need a compact, kitchen-chimney-friendly PCB that drives an ultrasonic transducer in the 40 kHz – 60 kHz band from an AC-mains supply. The goal is a reliable, low-cost circuit that keeps insects away without adding bulk or noise to the appliance. Here is the scope I have in mind: • Circuit conception and PCB layout, mindful of minimal component count and low BOM cost • Full documentation package—schematic, PCB design files, Gerbers, pick-and-place data, and detailed BOM with part numbers and estimated pricing • Advice on a suitable microcontroller or discrete-logic approach; I’m open to Arduino, ESP8266, PIC or any alternative that meets cost and space targets • Consideration for safe mains rectification, filtering and isolation so the board ...

I have a Raspberry Pi ready to become the brain of our new Smart Museum Preservation System. Your task is to design the complete IoT solution—both the electronics and the code—that continuously tracks temperature, humidity and light levels through digital sensors. Whenever any of those readings drift outside a curator-defined range, the system must immediately trigger an on-site alarm, push configurable notifications (email and/or SMS) and, where possible, drive actuators to bring the environment back to safe levels (for example, start a fan, close blinds or activate a humidifier). You will be free to choose the most reliable digital sensors, but they must interface cleanly with Raspberry Pi GPIO and be available through common distributors. I expect clean, well-commented c...

I need a complete electrical and mechanical design for a Framework Laptop expansion card built around the RP235xA microcontroller in the 30-GPIO QFN-60 package. My top priority is that everything fits perfectly inside the standard expansion-card envelope defined in Framework’s official repository (). Key requirements you must hit • Use the RP2350 and expose all USB-C power and signal constraints exactly as the Framework reference dictates. • Keep the card flush: no part of the PCB, component or connector may project past the official boundary. • Place two tactile switches (reset and boot) plus one RGB LED (I’m thinking WS2812 or equivalent) and one status LED on the underside so they are visible and accessible when the card is plugged into the laptop. ...

I want to prove that a pen-shaped gadget can masquerade as a Bluetooth HID and reliably control media on an iPhone. All I need right now is a working one-off prototype; certification, refined industrial design, and long-term battery optimisation can wait. Core requirements • The electronics must fit inside a pen body (a 3D-printed tube is fine). • On power-up it should pair with an iPhone as a standard HID remote. • A single tactile button will cycle through Play/Pause → Next Track → Previous Track in that order, sending the appropriate consumer-control codes. • I’m flexible on the radio stack—Bluetooth Classic or BLE, whichever gets the job done fastest. • Robust, repeatable functionality matters more than looks. What I expect to ...

Phase 1 – Automation Architecture -Review your sequence -Select controller platform -Define I/O list -Define architecture -Define communication philosophy Phase 2 – Hardware Selection -PLC selection -PC interface selection -Stepper driver selection -Sensor selection -Power supply sizing -Pneumatic component review Phase 3 – Controls Design -I/O mapping -Tag list -State machine -Interlocks -Fault matrix Phase 4 – Programming -PLC code -PC interface software -Modbus configuration -Motion setup Phase 5 – Electrical Design -Panel layout -Wiring diagrams -Terminal schedule -Power distribution Overview: A prototype including stepper motors, sensors and limit switches 24VDC. requirement to program, PLC, mapping, make ready to apply industry 4. in the future...

I need a compact, reliable AC solid-state relay designed specifically for driving pump loads. The control side will accept 3–32 V DC, while the load side must safely switch 24–380 V AC at a continuous 25 A. Core expectations • Status indication via a front-panel LED • Full opto-isolation between control and load • Zero-cross switching is preferred to minimise inrush, but I will consider a non-zero-cross solution if it offers clear advantages for motor-driven pumps. • The housing should be compatible with a standard heat-sink footprint, and I am open to either DIN-rail or panel mounting depending on what your thermal calculations show to be most practical. Deliverables 1. Full schematic with component values and reference designators 2. PCB ...

I need PLC panels designed for both control and monitoring functions in a manufacturing setting, specifically for process control. Key Requirements: - Design and execution of PLC panels - Integration for process control and monitoring - Suitable for the manufacturing industry Ideal Skills: - Experience with PLC programming and panel design - Background in manufacturing automation - Knowledge of process control systems Please provide relevant experience in your bids.

ESP32 Bluetooth-Enabled Umpire Indicator Prototype with Rotary Encoders (BLE Sync to Mobile App) *We have two full time App developers that you can work with. Project Description: Seeking an experienced embedded systems engineer to develop a functional prototype of a Bluetooth Low Energy (BLE) digital umpire indicator for slo-pitch softball. Reference: See attached image of standard Champion 4-dial indicator (Balls, Strikes, Outs, Innings). Requirements: • Replicate tactile dial feel using rotary encoders (notched/clicking action for no-look operation). • ESP32 (preferred) or equivalent microcontroller with BLE to transmit real-time count updates (balls/strikes/outs/innings) to a mobile app. • Device pairs with our existing slo-pitch live-streaming + scoring app and up...

Custom PS Navigation Controller Project Specification Goal: Create a modernized PlayStation Move Navigation Controller (PS Nav) that preserves the original ergonomics, thumbstick location, and feel while addressing the hardware limitations of the original design. The project is not intended to redesign the controller. The objective is to preserve the PS Nav experience as closely as possible while modernizing its functionality and reliability. Core Design Philosophy: The controller must retain the original PS Nav shape, grip angle, and thumbstick placement. The thumbstick location is the most important feature and must remain unchanged. The stick should remain in the same top-mounted position as the original PS Nav rather than adopting Xbox, PlayStation, Joy-Con, or Azeron-style layout...

RFID Hardware Product Development (NDA Required) We are looking for an experienced Hardware Engineer / RFID Specialist to design and develop a custom RFID-based hardware product. The product involves tracking and measuring physical expansion, dimensional changes, or movement of a tagged object over time using RFID and related sensing technologies. At this stage, only high-level information is being disclosed. Detailed project specifications, use cases, technical requirements, and commercial applications will be shared only with shortlisted candidates after execution of a Non-Disclosure Agreement (NDA). Required Skills RFID Technology (HF, UHF, NFC, Active/Passive RFID) Embedded Systems Hardware Product Design PCB Design Sensor Integration IoT Hardware Development Prototype Development Prod...

ESP32 firmware for an experimental, battery-powered maker devkit (SyncStim) that plays a 10 ms audio burst and, at a configurable interval, fires a charge-balanced biphasic constant-current electrotactile pulse train (plus an LED cue). The core requirement is timing fidelity and safe constant-current output, verified on an oscilloscope. Hardware is already specified (BOM): ESP32-WROOM-32D, MAX98357A I2S amplifier, DRV8871 H-bridge, DC-DC boost converter, LM334 constant-current source, current sense, SD card. Battery-powered and mains-isolated. Behavior: repeats a 200 ms cycle (5 Hz). Each cycle is a 10 ms audio burst over I2S, then after a configurable inter-stimulus interval, a burst of 3 biphasic pulses (150 microseconds per phase, 1 ms onset-to-onset), constant current, under 3 mA, ch...

I’m developing a new consumer-electronics gadget and need a compact, production-ready PCB designed around a Wi-Fi/Bluetooth module. The board must stay within a 4 x 4 inch footprint, leaving enough clearance for an enclosure that is already in progress. Here’s what I’m expecting from you: • Complete schematic capture and PCB layout in your preferred professional tool (Altium, KiCad, or Eagle are all fine). • Well-routed RF section that maintains antenna performance and meets FCC pre-compliance guidelines. • Gerber, drill, and pick-and-place files ready for fabrication. • A concise BOM with part numbers that have strong supply-chain availability. • Brief design notes highlighting impedance-controlled traces, power-plane considerations, a...

My Amazon FBA store is ready to branch into the electronics niche, and the priority now is locating winning products and reliable suppliers. The scope covers the full product-sourcing cycle—from market research and margin calculations through direct supplier contact and sample coordination—ending with a vetted shortlist of SKUs that meet profitability, demand, and compliance criteria. Please ground every recommendation in verifiable data (keyword volume, sales velocity, and landed cost) and back it up with supplier quotes that include MOQ, production lead time, and shipping options to US fulfillment centers. Deliverables • A comparative sheet of at least 5 high-potential electronic products, each with sales metrics, estimated ROI, and risk notes • Supplier con...

I have the full schematic for working legacy PCB. I need it redesigned and modernised into a new board using current components, while keeping the original board size, mounting holes and connector positions. The old design uses PIC18F8722, FT232RL, TDA7465, video switching and RCA outputs. The new design should replace those with STM32 native USB, modern audio DSP/codec, protected coin inputs, modern power regulation, and custom firmware support. This is not an exact clone. It is a modern drop-in replacement using the original schematics as a reference. Key things :- Keep: * Board size: 168mm × 206mm * 6 mounting holes * USB-B position * Existing amp connectors * Mic input * Coin mech interface * IR receiver/service button * J8 motherboard audio input Remove: * RCA sockets * Vi...

I have a small home-automation module that needs a reliable touch interface, so the task is to engineer a 5 V circuit around the TTP223 that cleanly switches between high and low digital levels whenever it is touched. Precision in sensitivity and long-term stability matter more to me than squeezing out the very last microamp, yet the design should still sit comfortably in standby without wasting power. Key expectations • The sensor must tolerate normal household electrical noise without false triggering. • Output logic levels must be directly MCU-friendly (TTL/CMOS, active-high preferred). • Component count should stay minimal; surface-mount parts are fine. • Any necessary debounce or filtering should happen in hardware rather than firmware. Deliverables 1. ...

Custom PS Navigation Controller Project Specification Goal: Create a modernized PlayStation Move Navigation Controller (PS Nav) that preserves the original ergonomics, thumbstick location, and feel while addressing the hardware limitations of the original design. The project is not intended to redesign the controller. The objective is to preserve the PS Nav experience as closely as possible while modernizing its functionality and reliability. Core Design Philosophy: The controller must retain the original PS Nav shape, grip angle, and thumbstick placement. The thumbstick location is the most important feature and must remain unchanged. The stick should remain in the same top-mounted position as the original PS Nav rather than adopting Xbox, PlayStation, Joy-Con, or Azeron-style layout...

I am building a small system that will ride on a vehicle and needs smart power and signal management. Two of the three loads are a Camera and a Transmitter; the third is still open for discussion once the basic framework is proven. An Arduino-class board running Python (CircuitPython or MicroPython is fine) will sit at the center of the design. Core behaviour • A proximity sensor with a simple NO/NC or other switched-DC output tells the microcontroller when the vehicle is near its target. On that event the code must turn the devices on or off, make or break the live analog video path, and if required trigger visual or audible alerts. • A vibration/accelerometer module tracks motion. When the vehicle has been still for a preset timeout the controller should cut power to all t...

I have a concept for a small control board that will act purely as a communication interface; the brain must be a microcontroller and every line on the board will ultimately speak SPI. I need the complete journey covered—from schematic capture through to a working prototype—and a simple companion application that can configure, send, and read data over that SPI bus. Hardware I want you to select an appropriate MCU, lay out the PCB, generate the BOM, and produce production-ready Gerbers. The board will only need the essentials: power regulation, the MCU, an SPI header, and whatever discretes are required for reliable signalling. Options such as UART or I²C might be added in a later revision, so leave enough pins and routing headroom for that future expansion. Firmware ...

I want to decide on the most appropriate semiconductor switch for a new switch-mode power supply design, with switching speed as the overriding priority. Although I initially considered a thyristor, I’m open to any device—MOSFET, IGBT, BJT or another alternative—that demonstrably outperforms the rest once the figures are on the table. Here’s what the work entails. First, analyse the SMPS topology and its expected operating conditions, then shortlist realistic candidates and justify the final choice in terms of rise/fall times, turn-on/turn-off losses, and any ancillary gate-drive or snubber requirements. Once the device is chosen, run a full simulation (LTspice, PSpice, SIMetrix, MATLAB Simulink or equivalent) that shows switching waveforms, efficiency trends over ...

I'm looking for an inventive engineer or designer to create a nail color dispensing machine. Requirements: - Mechanism for swapping nail colors (manual, semi-automatic, or fully automatic) - Support for custom-shaped bottles - Touchscreen user interface Ideal Skills & Experience: - Experience in product design - Familiarity with dispensing mechanisms - UI/UX design for touchscreens - Knowledge of working with custom shapes and sizes

I'm looking for an experienced firmware developer to work on an ESP32 microcontroller. The project involves integrating Wi-Fi connectivity and sensor integration for electricity monitoring. Key Requirements: - Develop firmware for ESP32 - Implement Wi-Fi connectivity - Integrate various sensors for monitoring electricity usage - Ensure reliable data transmission and system performance Ideal Skills and Experience: - Proficiency in ESP32 and related development environments - Strong background in firmware development - Experience with Wi-Fi protocols and sensor integration - Knowledge of electricity monitoring systems Please provide relevant work experience and approach to the project.

Scope of Work & Deliverables 1. Circuit & Component Simulation Validate and simulate critical sub-circuits and component behaviors before moving to the layout stage (using LTspice, PSpice, or equivalent). Optimize the power delivery network (PDN), specifically the integration between the HLK Network module and the ESP32, ensuring proper noise filtering, decoupling, and voltage stability. 2. Schematic Review & Optimization Comprehensive audit of the existing schematic for signal integrity, protection circuits, and component ratings. Ensure proper implementation of hardware protection (e.g., TVS diodes, fuses, surge protection). 3. Thermal Simulation & Management (High Priority) Perform full Thermal Simulation (FEA/CFD) of the PCB and components under continuous 24/7 work...

I have a new consumer-electronics concept that needs a clean, single-layer PCB focused on reliable power-management. I’ll supply the functional block diagram and key electrical parameters; you translate this into a production-ready board. You’ll take the idea from schematic capture through to fabrication files, optimising track width, component placement, and thermal relief so the power stage remains cool and efficient. Standard tools such as Altium, KiCad, or Eagle are all fine—use whichever lets you work fastest without compromising quality. Deliverables I need at hand-off: • Editable schematic file • PCB layout file • Gerber, drill, and pick-and-place files ready for manufacturing • Complete, manufacturer-verified BOM with part numbers and f...

I need an experienced electronics engineer to modify a 12V DC schematic by adding an audio amplifier and fuse. The audio amplifier will be used for powering speakers, with a wattage requirement of above 100W. Requirements: - Add an audio amplifier to the existing 12V DC schematic - Integrate a suitable fuse for safety - Ensure the modification is reliable and meets the wattage requirement Ideal Skills and Experience: - Proficiency in working with 12V DC circuits - Experience with audio amplifiers and speaker systems - Strong understanding of circuit safety and fuse integration - Background in electronics engineering or a related field Please provide examples of similar work done.

I need an experienced optical engineer to create a complete lens design dedicated to a dermatoscopy‐grade microscopy system. The goal is a compact objective that delivers crisp, color-corrected images of skin structures at high magnification, suitable for integration into a handheld digital device. Scope of work • Model and optimise the lens in Zemax (or equivalent) to meet the following targets: 20–30× effective magnification, ≥90 lp/mm resolution at the sensor, working distance ≥15 mm, field of view ~10 mm, minimal chromatic and field curvature. • Confirm manufacturability with standard glass catalog parts wherever possible and flag any custom elements early. • Provide tolerance analysis and recommend coatings to maximise throughput under LED illum...

I need a PCB design for a Graphene-based FET sensor readout system. The PCB should facilitate I-V characterization of GFETs by sweeping gate voltage (0-3V) and measuring current or resistance between source and drain. Key requirements: - Size: Medium (4x4 inches) - Interface: Connector terminals preferred - Component Inclusion: Partial component list available, open to recommendations Ideal skills and experience: - Expertise in PCB design - Experience with GFET or similar sensor technologies - Familiarity with I-V characterization setups - Knowledge of various electronic components and their integration

I have a run of industrial-grade PCBs that must be populated with both SMD and through-hole DIP parts—well over 500 individual components in total. Reliability is critical because the boards will sit at the heart of industrial equipment, so every joint needs to be crisp, void-free, and compliant with standard workmanship guidelines (IPC-A-610 or equivalent). Here is what I need from you: • Pick-and-place or precise hand placement of all SMD parts followed by reflow or hot-air soldering as appropriate • Clean, consistent hand-soldering of the DIP components, trimming leads flush afterward • Visual inspection under magnification and basic electrical continuity checks to confirm there are no bridges or cold joints • Return of the fully assembled boards, safely...

Location: New Delhi Employment Type: Full-Time (On site) Department: R&D / Hardware Engineering Compensation: ₹4.30 LPA – ₹6.45LPA About Us We are an early-stage R&D startup developing safety-critical electronic systems and equipment for India's power, railway, and industrial infrastructure. We are a lean, high-ownership team where engineers directly shape products, processes, and the company's technical direction. Our systems are designed to operate reliably in the harshest environments and under the strictest regulatory scrutiny. Role Overview We are looking for a Hardware Engineer with strong expertise in core hardware technologies to lead hardware development. The candidate must be skilled in PCB design and have a solid understanding of hardware systems,...

I need 2-4 ethernet jacks installed in multiple rooms. The internet connection source is in the laundry room. Requirements: - Experience with ethernet wiring and installation - Ability to work in multiple rooms - Ensure proper connectivity and setup Ideal Skills: - Electrical or networking background - Detail-oriented and reliable - Good problem-solving skills

PCB Design Requirement Document Project: ARC LABS Smart Home Automation Controller About Us ARC LABS is an IoT and Embedded Systems company focused on developing commercial smart home and Industrial IoT products. We are looking for an experienced PCB designer who can help us develop a production-ready smart home controller PCB. ⸻ Project Scope Design a compact, reliable, and manufacturable PCB for a WiFi-based Smart Home Automation Controller. The PCB should be suitable for commercial production and comply with standard PCB manufacturing guidelines. ⸻ Hardware Requirements Main Controller * ESP32-C3 or ESP32-S3 (preferred) * USB Type-C programming interface * Auto reset and auto boot circuitry Power Supply * 230VAC to 5V isolated SMPS * 5V to 3.3V regulator * Over-voltage and ...

SKILLS:PCB Layout, EasyEDA, Electronics, Electrical Engineering, Embedded Systems, Circuit Design, Schematic Review, DFM, Gerber, BOM, Mixed-Signal Design DESCRIPTION: We need an experienced electronics / embedded hardware PCB designer for a confidential controller PCB project. The work must be done in EasyEDA. Important: full schematics, EasyEDA files, component details, connector mapping, mechanical constraints and architecture will NOT be shared publicly. Files will be shared only after NDA and IP Agreement are accepted. Project scope: 1. Review the existing schematics before PCB layout. 2. Identify schematic issues, missing values, footprint risks, connector or pin-mapping risks, power or grounding risks and manufacturing risks. 3. Prepare a correction list before PCB design starts....

I'm looking for an experienced engineer to design an assembly line for a door manufacturing plant. The equipment is relatively simple, primarily involving steelwork, with some pneumatic and electronic components. The goal is to replicate existing market products with minor adjustments. Key Requirements: - Design and integrate steel frameworks, pneumatic systems, and electronic controls. - Implement design adjustments and enhance automation to tailor the system to our specific requirements. - Initial concept drawings created / amended and approved - Full technical manufacturing drawings Ideal Skills and Experience: - Proficiency in industrial engineering and automation. - Experience with steel fabrication, pneumatics, and electronics. - Strong problem-solving skills and ability to cu...

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

I already have the full system architecture and every component selection locked in; what I need now is a seasoned PCB designer to turn that documentation into production-ready data using KiCad. The board will carry up to 10 A, so copper weight must be 2 oz or 3 oz and all plating details must follow the requirements outlined in the “” file I’ve shared. Because I specify the manufacturers for each part, the BOM has to reflect those exact sources with no substitutions. Apart from that, the focus is purely on translating my technical brief into clean, fabrication-ready output. Deliverables • KiCad schematic and PCB layout files • Optimised Gerber set for 2 oz / 3 oz copper traces • Excellon drill files for all through-holes • BOM and CPL that l...

I already have the full system architecture and every component selection locked in; what I need now is a seasoned PCB designer to turn that documentation into production-ready data using KiCad. The board will carry up to 10 A, so copper weight must be 2 oz or 3 oz and all plating details must follow the requirements outlined in the “” file I’ve shared. Because I specify the manufacturers for each part, the BOM has to reflect those exact sources with no substitutions. Apart from that, the focus is purely on translating my technical brief into clean, fabrication-ready output. Deliverables • KiCad schematic and PCB layout files • Optimised Gerber set for 2 oz / 3 oz copper traces • Excellon drill files for all through-holes • BOM and CPL that l...

I have a PIC-based controller receiving Modbus RTU traffic and I need to pull meaningful, human-readable information out of those frames. The transport layer is already running and CRC checks are in place; what is missing is a compact, well-structured decoder that can sit inside my existing project and translate function codes, addresses, and payloads into variables the rest of the firmware can use. Your job is to write and supply code that runs on a PIC (XC8 / MPLAB X tool-chain) and: • Parses incoming Modbus RTU frames in real time. • Supports at minimum function codes 03, 04, 06 and 16, with a clean way to extend to others. • Exposes the decoded data through a simple API or callback so my application layer can consume it immediately. • Handles error responses...

I’m preparing the next phase of a regional water-infrastructure upgrade and need an Australian-based engineer or consultant to take full ownership of the switchboard design. While valve actuation and PLC/SCADA integration sit in the background, the switchboard itself is the primary focus and must be engineered to interface cleanly with those systems from day one. Scope of work You will develop the complete switchboard design package in line with Australian Standards for potable-water networks and the specific requirements of the local utility. That includes schematics, GA drawings, wiring diagrams, cable schedules, protection calculations, and a concise integration strategy that shows how the board will drive existing valve actuators and exchange data with the site’s PLC/SCA...

Hello, I need a schematic and 2-layer PCB layout for an automotive-grade Multi-Port USB Charger box. It's a hardware-only project (no firmware/software). Key Goals: Target Manufacturing Cost: Under €15 per unit (PCBA) for a 100-unit run. Component Selection: Must use low-cost, highly integrated standard ICs (e.g., Injoinic, Southchip) from LCSC/JLCPCB. PCB Size: Approx. 65 x 40 mm or smaller (Open-Frame). Mounting: M3 screw holes in the corners with a strict 6mm diameter keep-out zone. Interfaces & Topology Input: 12V/24V DC + 1x SMD USB port (Data-Input from car radio). Outputs ($90^circ$ Shrouded JST PH 2.0 connectors): Port 1 & 2 (USB-A): Shared Buck-Regler (QC3.0 / Apple 2.4A, max. 24W total). Port 3 (USB-C): Shared USB-PD 3.0 / QC3.0 combo controller. Port 4 (USB...

I’m upgrading the existing electrical panels and circuits in a small commercial space in Lihue, Kauai. Because this is an upgrade rather than a full new installation, the main hurdle is securing the proper commercial electrical permit from Kauai County. I need a Hawaii-licensed electrician who can put their license on the application, submit the paperwork, respond to any plan-check questions, and close the permit after final inspection. My crew will handle the physical work on site; your contribution is focused on the permitting process and any clarifications the county requests. Please include your Hawaii license number, your experience with the Lihue permitting portal, and an estimated turnaround time to get the application filed. Deliverables • Approved commercial elect...

I want to design a high gain antenna. Even amplitude excitation leads to side lobe levels no better than -13.26 dB. I want uneven amplitude excitation using chebyschev distribution. Also, cross polarization should be less than -40 in all phi cut.