Circuit design jobs

...offset our facility’s demand charges and provide resilient back-up power. The preliminary economic model is complete; what remains is a construction-ready electrical design that folds the three resources into a single, code-compliant package. The generation mix is fixed—solar arrays, BESS and gas engines—as confirmed in our internal feasibility study. I already have detailed equipment specifications, protection philosophies and utility interconnection requirements; these must be reflected verbatim in the drawings and calculations you prepare. Where gaps appear, NEC 2023, IEEE 1547 and local AHJ amendments should guide the design. Scope of work • Produce feeder, grounding and protection single-lines that show all three assets and their point of co...

Urgent PowerPoint Redesign: 16-Slide — Delivery Within 24 Hour I need an experienced presentation designer to redesign a 16-slide PowerPoint. All content, script, slide-by-slide design instructions, images, videos and research figures are already prepared. This is not a content-writing project. I need a designer who can rapidly transform the existing material into a polished, visually striking, high-level keynote deck. The design should feel scientific, modern, cinematic and human-centred. It should be readable on a large convention-centre screen and should not look like a research poster or a generic AI presentation. I will provide the current PDF/PPTX deck, complete speaker script, specific slide-by-slide instructions, photographs, videos, scientific figures, log...

...total. Each band has a distinct visual theme blending seamlessly into the next: Top band — Pirate Cove: turquoise ocean, shipwreck, tropical island, treasure chest, skull-and-crossbones flag Band 2 — Medieval Kingdom: mossy stone, distant castle, banners, knights on horseback Band 3 — Galactic War: starry nebula, distant planets, spaceships, purple/blue cosmic glow Band 4 — Cyber Sector: neon circuit-board patterns, glowing green/cyan digital lines, retro-futuristic tech Band 5 — Wild West: desert sand, cactus, mesas, saloon silhouette Band 6 — Frozen North: cracked ice, snowy mountains, viking longship, aurora borealis Bottom band — Gothic Shadowlands: dark volcanic rock, purple mist, twisted dead trees, distant haunted castle Each medal...

I need a complete PCB design built around the ESP32-C3 and five onboard power MOSFETs. The board will sit inside a medium-sized, handheld consumer-electronics enclosure and run from a regulated mains-derived supply, so careful attention to isolation, creepage, and thermal paths is essential. The circuit will drive five independent high-side or low-side loads (I can adapt to whichever topology is simpler on your end) while giving the ESP32-C3 solid Wi-Fi/BLE antenna performance. GPIO pin mapping, level-shifting, protection, and a clean 3 V3 rail must all be worked into the schematic. Please route with sensible trace widths, keep EMI in check, and leave me a little proto area for future tweaks if space permits. Deliverables • Schematic and well-annotated PCB layout &...

I am looking for an experienced PCB layout engineer to design and route a compact, dual-layer PCB for an IoT smart switch module. The design must fit inside a very restricted space (approximately 55mm x 45mm) to fit behind standard wall switchboards. Key aspects of the design: - Microcontroller: ESP32-WROOM-32 series (Wi-Fi + BLE). - Power: On-board AC-to-DC isolated converter (230V AC to 5V DC) and a 3.3V DC-DC buck converter. - Relays: 1x onboard relay switching AC mains load. - Inputs: Single-channel external switch sensing circuit. - Safety & Protection: Fuse and surge protection (MOV), with strict clearance/creepage rules (minimum 2.5mm spacing between high-voltage AC mains and low-voltage DC logic traces). - Tools: KiCad preferred. Deliverables: - Sc...

My schematic for an ESP32-based drone flight controller is complete; what I need now is a skilled PCB designer who can turn that schematic into a reliable, production-ready board. You’ll take the finished circuit and: • Develop the full board layout, choosing an efficient layer stack that keeps weight and interference low while remaining manufacturable. • Generate all fabrication data—Gerbers, drill files, pick-and-place, STEP/3D, and a clean, component-matched BOM. • Run thorough DRC/DFM checks so the design sails through board house review on the first pass. • Document any design decisions or trade-offs so I can iterate or scale later without guesswork. I’m supplying the original schematic, netlist, footprints, and datash...

I have detailed Google Map imagery of an existing karting circuit and I want it reproduced inside Kart Racing Pro. You will be taking the satellite layout as the single source of truth and turning it into a fully driveable track that loads flawlessly in the sim. Key elements I need incorporated are a functional pit-stop area and properly modelled safety barriers that match the map footprint. The location is already a purpose-built circuit, so you won’t be fighting with urban or mountain topology, and I’d like to keep the surface completely flat—no elevation sculpting is required. Deliverables • Finished Kart Racing Pro track package ready to drop into the game folder • Source files (3-D scene, textures, heightmap—even if flat) so I can ...

I have a circuit that now needs to move from the schematic stage to a production-ready printed circuit board. I will share the complete schematic, component list, and any mechanical constraints as soon as the project starts. Your task is to turn that information into a clean, manufacturable PCB layout and supply the standard fabrication files. Here is what I need from you: • Translate my schematic into a well-routed PCB that fits within the mechanical outline I provide. • Follow common DFM/DFT guidelines so the board can be produced by mainstream fabs without extra fees. • Deliver Gerber, drill, and pick-and-place files along with the source file from your preferred tool (Altium, KiCad, or Eagle are all fine). • Include a 3D step model so I can run...

Freelancer Book Cover Design Brief Premium Business Book Cover Design for the Legal Profession I am looking for a highly experienced book cover designer to create a world-class, premium business book cover. This book is aimed exclusively at: • Lawyers • Solicitors • Barristers • Law Firm Founders • Managing Partners • CEOs • Directors The cover must immediately communicate authority, professionalism, credibility and trust. This is not a technology book. It is a premium business book for senior legal professionals. This book is intended to become the flagship publication for a new international brand. The winning designer may be offered ongoing work on future books, presentations, brochures, social media graphics and corporate branding. ...

I am building a board that needs a compact mixed-signal section dedicated to high-accuracy data conversion. The job is to design the entire ADC/DAC front-end, marrying the sensitive analog path with the supporting digital logic so the output is ready to drop straight onto my main PCB. What I need from you • A complete schematic showing the analog input stage, the chosen ADC and DAC devices, reference circuitry, clocking, and the glue logic that links everything to an MCU or FPGA header. • Component selection with justification, balancing performance, availability, and cost. • Simulations that verify noise, linearity, and timing (SPICE, LTspice, or similar). • A clean, well-annotated PCB layout file (Altium, KiCad, or Eagle—your choice, just tell me...

I need a complete design package for an industrial-grade hydraulic system. The core of the system must centre on hydraulic cylinders, and I’m relying on you to size, specify, and lay them out so they deliver smooth, reliable force under continuous duty. Scope • Start with duty-cycle calculations, pressure/flow requirements, and cylinder sizing. • Produce detailed 2D/3D schematics (STEP or DWG preferred) plus a clear hydraulic circuit diagram. • Select compatible valves, hoses, manifolds and, where appropriate, recommend pumps or motors that will work seamlessly with the cylinder-focused architecture. While cylinders are mandatory, I’m open to your expert suggestions on the rest of the loop. Deliverables 1. Complete hydraulic circuit...

Requirement: Electronics Hardware Design Consultant (Industrial Instrumentation) We are looking for an experienced Electronics Hardware Design Consultant to support our D&D department in developing and upgrading industrial instrumentation products such as Ultrasonic Level Transmitters, Radar Level Transmitters, Capacitive Transmitters, and various Level Switches. Scope of Work: Electronic circuit design and calculations Analog and digital hardware development 4-20 mA and HART communication circuits Power supply and protection circuit design EMC/EMI-compliant hardware design Schematic and PCB design reviews Design optimization for reliability and manufacturability Support for IEC 61000 and EMC certification requirements Upg...

...appellate attorney to ghostwrite a Ninth Circuit Opening Brief for an Immigration Petition for Review (PFR). The 320-page AR contains a BIA decision affirming an IJ's denial of [Asylum / Withholding / CAT / Adjustment of Status].Scope of Work Includes:Reviewing the 320-page AR for reviewable legal errors, constitutional/due process claims, and factual findings lacking substantial a strict exhaustion analysis to ensure all raised claims were properly presented to the a comprehensive opening brief compliant with Ninth Circuit formatting, including: Statement of Jurisdiction, Issues Presented, Statement of the Case, Summary of Argument, Argument section with pinpoint AR citations, and compliance with Ninth Circuit Form 8 word-count limitations (14

...modules are plugged in. Deliverables 1. Schematic in KiCad, Altium, or EasyEDA (whichever you prefer). 2. PCB layout with clear silkscreen labels for every header pin. 3. Complete BOM with part numbers for the pin headers, capacitors, LED, and any voltage-conditioning parts. 4. Gerber, drill, and pick-and-place files ready for a board house. 5. A quick design note explaining the power-conditioning choices and LED drive circuit. If something in my hand-drawn sketch conflicts with best practice, feel free to propose a cleaner solution—this is a prototyping board after all....

...MCP23017/PCF8574 I2C expander - Provide connector: 8 switch signal pins + 1 common GND pin - Use pull-up input design Extra: - IR receiver input header - Spare I2C header if possible - Status LED - Reset option Protection: - Fuse on AC input - MOV surge protection - Proper isolation between AC and low voltage side - Safe creepage/clearance for 230V AC - Snubber circuit for TRIAC outputs if required - Prevent LED flickering/ghost glow PCB: - Make size as small as possible - Target: around 80mm × 50mm or smaller if possible - Should fit inside Indian modular switch box - Prefer 2 layer PCB to reduce cost - Use components available for PCB assembly Deliverables: - KiCad original design files - Schematic - Gerber files - BOM - Pick and Place files Prototype...

I need an experienced KiCad PCB designer for an ESP32-S3 based audio/IoT prototype board with battery The board will include: - ESP32-S3-WROOM-2 module - PN532 NFC/RFID support - microSD storage - High-quality I2S Class-D audio amplifier for 4Ω 3W–5W speaker - USB-C 5V input - Rechargeable Li-ion/LiPo battery support - Battery charging circuit - Battery protection - Power-path/load-sharing management - 3.3V regulation for ESP32 and peripherals - Proper power supply/filtering for the audio amplifier - 2 rotary encoders/buttons for volume/navigation - Small SPI color display, approximately 1.7–2.0 inch, ST7789 or similar - Display backlight contrrol. - Status LEDs - Test points for debugging and production testing

...production-ready schematic built in EasyEDA for a multi-layer board that will ultimately be fabricated as a 2-layer PCB. You will start from my rough block diagram and turn it into a fully annotated circuit, complete with correctly assigned nets and footprints chosen from the EasyEDA parts library (or custom symbols if a part is missing). The finished file should open without errors in EasyEDA’s online editor, pass Electrical Rule Check, and be ready for me to push straight into PCB layout. Please name every reference designator logically, keep signal groupings tidy, and observe standard 2-layer design conventions such as clear ground and power planes that will translate well once I route traces. Deliverables: • EasyEDA schematic file (JSON) • PDF print...

I’m preparing a tech showcase video for a new piece of wearable tech and need a polished, realistic 3D animation that shines a spotlight on what tech lies inside the device and presents a high-tech feel. Please devote the bulk of the screen time to illustrating: • Product expanding to show inside (circuit board, casing, button integration etc). The device should expand, we see all the tech light up, then it all compresses back inside. • Seamless connectivity—pairing with a phone, pulling notifications • Long-lasting power—battery indicator, wireless charging pad interaction, quick-charge sequence Rendering style must stay within a photo-real, product-advertisement look: lifelike materials, soft studio lighting, subtle depth-of-field, and believa...

Hello, We are looking for an experienced electrical designer / electrical CAD engineer to prepare a complete electrical design package for turnkey houses. For the first step, we would like to give one paid project to the right person. If we are satisfied with the quality of the work, communication, accuracy, and delivery time, there will be an opportunity for many more similar projects, because we are a growing construction company. Our company, Betonstaal Bouw Kft., works with high-quality prefabricated concrete wall and ceiling/slab panels. The houses are assembled from factory-made concrete elements, also known as a Wand/Decke wall and ceiling panel system. Because of this construction method, the electrical planning must be very precise. After the concrete panels are manufac...

...residential re-wire is underway and every circuit—from the main service panel right through to the last light switch—needs to be designed, installed, and tested. I want the entire scope covered: panel placement and sizing, branch-circuit layout, conduit and cable runs, outlet positioning, lighting fixture rough-in, and final device terminations. All work must comply with the latest NEC requirements and local codes, including proper AFCI/GFCI protection, load calculations, grounding, and bonding. If you regularly use tools such as AutoCAD (or similar) for schematics and can document each circuit with clear schedules, that is a plus. Deliverables I need to sign off on: • A complete single-line and layout drawing of the home’s electrical ...

Circuit Design Requirement – Flexible PCB Embedded Module I need a complete, production-ready electronic schematic for a flexible PCB module based on the STM32G071RBT6. The design must include all required supporting circuitry and should be suitable for future manufacturing. Main Controller STM32G071RBT6 Power Section 24 V DC input Complete buck converter circuit (24 V → 3.3 V) Reverse polarity protection Input fuse or polyfuse TVS diode Input/output filtering All required inductors, capacitors, resistors and compensation network Microcontroller Support Complete power connections Decoupling capacitors Bulk capacitors BOOT configuration Reset circuit SWD programming circuit Clock circuit (internal or external, whichever is recommen...

Syntax delivers bespoke software and IT solutions, so the new logo needs to speak the same language: clean, modern and unmistakably technological. I want an illustrative mark that revolves around the letter “S”, rendered in our brand colors—electric blue paired with vibrant orange. Think minimalist lines with an abstract tech flair (circuit hints, subtle code brackets or similar ideas are welcome) rather than busy pictorial scenes. The finished artwork should instantly suggest innovation while staying professional enough for proposals, slide decks and app splash screens alike. Please supply: • A primary full-color version on white • A reverse/light-on-dark variant • Scalable source files (.AI or .SVG), plus ready-to-use PNGs All elemen...

I need an experienced embedded hardware / PCB engineer to design a production-ready STM32-based main controller PCB for a therapeutic massage/spine bed system. This is a build-to-spec project. I already have a detailed engineering handoff package including system architecture, old PCB references, estimated current budget, pin maps, connector notes, BOM guidance, firmware handoff notes, layout requirements, and test plans. The freelancer’s main responsibility is hardware design and manufacturing outputs: schematic, PCB layout, Gerbers, BOM, assembly files, and firmware-ready hardware documentation. Firmware will be developed separately using AI/Codex/Claude from existing working ESP32 firmware. I will burn the firmware once the board is ready. The PCB must support first ...

...What I’m looking for is a clear, code-compliant design that the building team can follow without guesswork. That includes panel schedules, circuit runs, switch and outlet placement, lighting layouts, fixture specifications, pipe sizing, routing, venting, and hot-cold-waste schematics. Because this is whole-house new construction, the drawings must dovetail smoothly with HVAC and structural plans already in progress. I prefer the work delivered in AutoCAD (or Revit if you’re set up for it) with layered, well-labelled sheets ready to slot straight into the master set. Deliverables I need from you: • Electrical layout sheets (lighting, power, low-voltage, panel schedule) • Plumbing layout sheets (supply, waste, vent, risers) • A brief d...

# Project Title **Hardware Design and Prototype Development of a Custom High-Gain Boost Converter Integrated with a Three-Phase Grid-Tied Inverter** ## Project Description I am looking for an experienced Electrical/Power Electronics Engineer who can design, build, and test a **hardware prototype** of my **custom high-gain DC-DC boost converter**, followed by its integration with a **three-phase inverter**. The project is part of my research work, and I require complete hardware implementation along with experimental validation and documented results. The converter topology has already been designed by me. The selected freelancer will be responsible for designing the hardware PCB/prototype, selecting components, implementing the control circuit, integrating the conv...

I'm looking for an experienced hardware developer to assist with my Solar MPPT project, which is currently in development. The specific areas where I need help are: - PCB Layout - Circuit Design - Component Selection Ideal skills and experience: - Strong background in power electronics and solar energy systems - Proficiency in PCB design software - Experience with circuit design and component selection - Ability to work collaboratively and provide detailed documentation Please provide examples of similar projects completed.

...compact RC timing network that drives a MOSFET to short-out an NTC after start-up so the circuit acts as an inrush-current limiter only for the first few hundred milliseconds. The system runs from a 110 V DC bus and the load can draw up to 10 A once the bypass closes. Your task is to select suitable parts, calculate the RC values that give a clean, repeatable hand-over, and show how the MOSFET gate is protected against the high dV/dt on the bus. I’d like the work delivered as: • Schematic (PDF or KiCad). • Brief calculation sheet or annotated simulation showing how you arrived at the delay and confirming the inrush profile. • Short parts list with readily available components. I can validate the design on my bench, so please keep the explana...

...company to design and develop a high-reliability industrial AC-DC power supply for continuous 24/7 operation. **Application:** High-Precision Industrial Testing and Power Distribution Systems. The project requires a complete custom design or an adaptation of an existing platform (ODM), with full engineering IP transfer. Upon project completion, I require ownership of all design files and documentation necessary for manufacturing, maintenance, and future modifications. ## Project Requirements ### 1. Overview We require a high-reliability, industrial-grade power supply for continuous 24/7 operation. The power supply will be used in **High-Precision Industrial Testing and Power Distribution Systems**, where reliability, stability, and long service life are critica...

I need a complete phase-shift keying (PSK) circuit designed, simulated, and documented. The task starts with drawing a clean, logically laid-out schematic, then moves on to running a thorough simulation that verifies modulation and demodulation performance under realistic conditions. I have a template circuit but it needs formatting to the correct pins. You are free to pick the tool you know best—LTspice, Multisim, MATLAB/Simulink, or any other platform that can deliver trustworthy waveforms and numeric data—as long as the final results are reproducible on my end. What I expect in the hand-over: • A clearly annotated circuit diagram showing every component value and reference designator. • Simulation files plus screenshots or plots of key ...

I’m building a detailed electrical-circuit model in MATLAB and need an experienced hand to take it from concept to a working simulation. The goal is to replicate both the transient response and the frequency response of the circuit so I can investigate start-up behaviour, step changes, and steady-state performance across a sweep of frequencies. Your task is to code the model (MATLAB scripting or Simulink—whichever suits the problem best), set up the necessary component parameters, and validate the output against reference values that I’ll supply. Please include clear comments and a brief write-up of the assumptions and equations you use so I can reproduce or extend the work later. Deliverables: • Fully functioning MATLAB/Simulink files • Plot...

I’m looking for a freelancer in Delhi NCR who can help design and build a small working prototype of a flexible solar panel curtain or Venetian blind system for a school project. The idea is to integrate flexible solar panels into a curtain/blind structure so it can collect sunlight during the day and power a small LED or similar low-voltage output. I need help with both the concept and the physical prototype. What I need help with: - Prototype concept and layout. - Basic circuit planning. - Material selection. - Physical assembly of a small model. - Simple working demonstration of solar charging and output. Preferred skills: - Solar panel integration. - Low-voltage electronics. - Product prototyping. - Arduino or simple circuit experience. - Mechani...

... locked 60-second voiceover script. What the Artist Must Provide Sourcing of high-quality, realistic automotive stock footage (both exterior driving shots and interior driver-perspective shots).Photorealistic texturing of the 3D models (matte UV-stabilized automotive plastic, glass/polycarbonate lenses, internal green circuit boards).Seamless motion-tracking of the 3D models onto moving vehicles in stock footage. Basic text overlays/motion graphics, professional sound design, and licensed background music. Key Scenes to Animate The Reveal: A sleek, photorealistic "beauty spin" of the pod on a clean background. An exploded-view animation showing the inner battery and AI microprocessor chip. The Installation: A digital simulation showing a hand cleanly pressing th...

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I already have the parts list and basic idea for a Binary Phase-Shift Keying circuit, but I need a clear schematic that shows every component in its proper place and proof—through simulation—that the design actually modulates as expected. Here’s what I’d like from you: • A tidy, labelled schematic of the complete BPSK stage, showing component values and node names. • An explanation (short notes are fine) of why each block or component is positioned the way it is, so I can learn from the layout. • A simulation run in any mainstream package you’re comfortable with—LTspice, Multisim, Proteus, or another tool—capturing input data, carrier, and the phase-shifted output. • Screenshots or export files of the key...

I need a complete phase-shift keying (PSK) circuit designed, simulated, and documented. The task starts with drawing a clean, logically laid-out schematic, then moves on to running a thorough simulation that verifies modulation and demodulation performance under realistic conditions. I have a template circuit but it needs formatting to the correct pins. You are free to pick the tool you know best—LTspice, Multisim, MATLAB/Simulink, or any other platform that can deliver trustworthy waveforms and numeric data—as long as the final results are reproducible on my end. What I expect in the hand-over: • A clearly annotated circuit diagram showing every component value and reference designator. • Simulation files plus screenshots or plots of key ...

My new online electronics shop, “Toko Metal Kenten,” needs a fresh, modern logo that feels unmistakably tech-driven. I’m after a clean blue-and-black colour scheme and would like a subtle circuit-board element worked into the design—no gears or abstract symbols, just something that instantly says technology while keeping the overall look simple and professional. Please create the artwork as scalable vector graphics so I can use it anywhere from my website header to packaging. I need both a transparent-background PNG for immediate use and the fully editable AI file. The finished files must open flawlessly in Adobe Illustrator, include outlined type as well as a version with live text, and stay within the specified colour palette. The timeline is short...

I have an ESP32-based board that drives a triac and includes an on-board AC-DC converter. The existing schematic shows clear wiring mistakes, questionable component c...eyes to correct and optimise it. Here’s what I need you to do: • Audit the full schematic for wiring integrity, component suitability, and safe power architecture. • Update component values or footprints where you see fit, refine the circuit design, and realign any pin assignments. • Deliver a clean, annotated schematic file plus an updated BOM that reflects every change. You’re free to work in KiCad, Altium, or EasyEDA—whatever lets you move fastest—so long as the final files can be opened by me in KiCad. Once I can walk through the revised design without...

...PCB fully routed. 2) Production-ready Gerber set (plus drill files) generated from that same project.3) BOM Work in KiCad 9 or later and keep track of naming consistent with my schematic. Note: The Foot print for the WeAct Studio CH582F module is not complete(may have to be created), though I have vendor provided .step file. Skills Required: KiCad PCB Layout, Design,Routing. Electronics Embedded system. Manufacturing Circuit Design...

...test MATLAB/Simulink models for an embedded assistive system. - Support the design of an ESP32-based prototype using sensors, communication modules, and feedback devices. - Model system operating modes such as idle, sensing, processing, communication, and feedback. - Measure power consumption, latency, response time, and communication reliability. - Assist with experimental validation using bench-level hardware. - Compare simulation results with real hardware measurements. - Prepare plots, tables, technical notes, and documentation for project reporting. -Support troubleshooting of embedded circuits, sensor communication, and data logging. Required Skills and Experience - Embedded systems and microcontroller-based design. - ESP32, Arduino, or similar development boards. -...

I need a complete circuit schematic and multi-layer PCB layout that handles power management duties while integrating a microcontroller, several sensors, and the necessary transistor stages. The board must be compact, reliable, and ready for fabrication, so I expect proper layer-stack definition, clear power and ground planes, and thoughtful component placement to minimize noise and heat. Please base the work in a mainstream tool such as Altium Designer, KiCad, or OrCAD so I can review the files easily. Once finished, I will require: • Editable schematic files with all nets labeled • Optimized multi-layer PCB layout • Gerber, drill, and pick-and-place files ready for manufacture • A complete BOM with manufacturer part numbers • Brief design ...

...Optimize power consumption. * Run reliably on battery power. * Prepare firmware for future Bluetooth/Wi-Fi communication. Future Features (Not Required for Prototype) * Mobile application * Live map * Multiple animal tracking * Battery status monitoring * Vibration motor * Health monitoring sensors * Cloud connectivity * OTA firmware updates Deliverables * Fully commented firmware source code * Circuit diagram * Wiring documentation * Component list * Working prototype demonstration * Instructions for flashing future firmware Success Criteria A working prototype that: * Obtains GPS location reliably. * Detects when the buffalo leaves the virtual boundary. * Activates the buzzer automatically. * Operates stably from battery power. * Is ready for future mobile app integratio...

...Need: We are looking for a clean, modern, and memorable logo that reflects our brand identity. The design should be simple, professional, and timeless. Design Style: * Minimalist and modern * Professional and premium * Simple but meaningful * Easy to recognize and remember * Suitable for both digital and print media Brand Values * Technology * Innovation * Connection * Reliability * Clean Energy * Trust Preferred Colors * Deep Blue (technology and trust) * Solar Yellow or Orange (energy and solar) * Dark Gray or Black as an optional accent The logo should also look great in black and white. Icon Ideas You are welcome to be creative, but possible concepts include: * Abstract "N" symbol * Circuit or electronic connection * Power or energy symbol * So...

I need a prototype circuit board design for a consumer electronics project. The board will primarily be used for a radio device and needs to integrate infrared sensors. Requirements: - Design a prototype circuit board - Integrate infrared sensors - Suitable for consumer electronics Ideal Skills and Experience: - Experience in designing circuit boards for consumer electronics - Expertise in sensor integration, specifically infrared sensors - Proficiency in circuit design software

...designer to design a production-ready PCB for a smart plant moisture monitoring product. Project Requirements The PCB must fit inside my existing enclosure, which will be provided as a .STEP file. Component placement is important, and the PCB must align with the enclosure, mounting points, buttons, screen opening, USB-C port, and all connector locations. The PCB must also be designed to fit my existing 1.54" TFT SPI display, which connects using a 10-pin 0.5 mm pitch FPC ribbon cable. Hardware Requirements ESP32 30-pin development board (plugs into female headers; the ESP32 is NOT integrated onto the PCB) 1.54" SPI TFT display 10-pin 0.5 mm FPC connector for the TFT Capacitive soil moisture sensor connector JST-PH 2-pin connector for a 3.7V 500mAh LiPo battery USB-C ...

...(front-facing) microSD card slot Battery charging circuit (single-cell Li-ion/LiPo), including dual charge current support, with JST connector for the battery Power delivery via a magnetic pogo-pin style connector (for grid mounting) Must ALSO remain programmable/powered via USB-C Needs a clean solution to avoid conflicts when both the magnetic connector and USB-C are supplying power at the same time (this is the trickiest part of the design — please confirm you have handled power-source arbitration/OR-ing circuits before) 4-pin JST connector for mounting (VCC, GND, SDA, SCL) — this is how it talks to the grid controller Physical switch to connect/disconnect the battery Two battery status LEDs (red = charging, green = fully charged) Voltage divider circuit...

...small household loads. The goal is to map out every circuit involved—from the photovoltaic input and maximum-power-point tracking (MPPT) stage to battery charging, protection, and the low-voltage DC outputs for USB-C and 12 V rails. Please base the work on modern, readily available components so the final design can move straight to PCB layout and prototyping. You are free to use Altium Designer, KiCad, or Eagle; just make sure the project files are cleanly organised and annotated. Deliverables • Complete, error-free schematic files (native tool format + PDF export) • Clearly labelled net names and reference designators • Component library or links to part datasheets • Bill of materials with manufacturer part numbers • Brief desi...

I am fitting out a new dental and medical center in Navi Mumbai and I need a complete electrical design package that I can hand straight to my on-site contractor. You will begin with the furniture layout and preliminary board positions I supply, then translate them into a fully coordinated wiring diagram that covers every circuit, protection device and point of use. I require a 3 phase Electrical drawing must be highly detailed: wire gauges, phase balancing, RCCB and MCB ratings, switch and socket counts, specialised outlets for dental chairs, X-ray rooms and sterilisation equipment, clear conduit routes and trunking sizes. Alongside the drawing I want a concise schedule or bill of materials that lists each component with recommended brands rather than fixed ones—plea...

I need a sturdy, impact-resistant plastic enclosure that will safely protect a circuit board and a battery pack. I already have rough dimensions and mounting points sketched out, but I’m counting on you to refine the design, create full CAD files, and supply a single 3D-printed sample so I can test fit and durability before moving to tooling. The enclosure does not have to be waterproof or vented at this stage—the priority is a clean, professional look and the ability to absorb knocks without cracking. Snap-fit or screw-together construction is acceptable as long as the board and battery remain secure and serviceable. Typical wall thickness targets are 1.8–2.4 mm, yet I’m open to recommendations based on the material you choose. I work comfortably w...

...has already been developed and is running successfully on the development board. We are looking for an experienced embedded hardware/PCB designer to design a prototype PCB that will allow us to validate the complete hardware before moving to the final production version. The final product will be mounted on a bicycle and used in rough off-road racing conditions, therefore the design must focus on reliability, waterproofing, vibration resistance, and low power consumption. --- ## Scope of Work The selected freelancer/company will be responsible for: - Complete schematic design - PCB layout design - Component selection (where required) - Design review - Prototype-ready PCB - Manufacturing files - Mechanical deliverables (STEP model) - Support durin...

I want a complete specialized electronic circuit that powers a reusable lighter. The goal is to replicate—or, if necessary, freshly create—the entire circuit so the finished device is: • Compact and portable • Highly durable in daily use • Powered by an onboard, rechargeable battery I already have a clear idea of the form factor and performance I’m after; what I lack are the detailed schematics, PCB layout, and component selection that will ensure reliability and safety. The work should include: 1. Full circuit schematic with all safety features for high-current ignition. 2. PCB layout files ready for manufacturing (Gerber, drill, pick-and-place). 3. Bill of materials with part numbers that are readily sourced. 4. Guideli...