Circuit Design projects — HireLancer archive

ID / Date Listing

RF Circuit Design Assistance

I have a new project that calls for a custom-built RF circuit, and I need a specialist who can take it from concept to production-ready files. The exact functio...

HL-39803631

600VAC-800VDC Rectifier Design

I need a robust three-phase rectifier that takes 600 VAC input and delivers 800 V DC at a continuous 200 A for an industrial-machinery environment. High efficie...

HL-39803457

KiCad PCB & ANSYS Thermal Analysis

I already have a complete KiCad schematic; what I now need is a production-ready PCB layout and a subsequent thermal check in ANSYS. The board must follow a cus...

HL-39803290

schematic and circuit diagram design - 18/09/2025 15:25 EDT

Electrical Engineer Brief for USB-C Power Strip Design Project Title: USB-C Power Strip Design for Charging 4 Laptops Simultaneously Objective: We are developin...

HL-39803092

Photo-Crystal Analog Computation R&D -- 2

I am advancing a solid-state analog computer that relies on an etched crystal, a single 555-timer–driven flyback stage, and three orthogonally placed electromag...

HL-39802841

ESP32-S3 Alternator PCB Design

I need a complete PCB design that puts an ESP32-S3 at the centre of an automotive alternator controller. The board must regulate the field coil, handle auxiliar...

HL-39802393

Electrical Engineering Assistance Needed

A new technical initiative on my desk calls for expert electrical-engineering input. I am still refining the full brief; however, the core expectation is a clea...

HL-39801772

Dual Device Qi Charging System Design

We're good at lots of things, but not Qi Charging! Have a need for a Qi Charging expert. We're working on a project that has a charging platform. It will charge...

HL-39801576

PCB Designs

I have a new circuit concept ready for production and now need a seasoned PCB designer to translate it into a manufactural board. The schematic is drafted on pa...

HL-39801500

Urgent! PCB Designer

I need a complete PCB layout turned around as fast as realistically possible. The schematic is ready; what I am missing are the production-ready Gerbers, drill...

HL-39800669

Copper PCB Busbar Design with bms sense points

I have a Nissan Leaf 14s4p battery pack that requires a purpose-built PCB busbar. The board’s job is to move current, battery sense points to add a bms and the...

HL-39800223

Arduino DC Motor Controller

I need an Arduino-based controller for two independently controlled small DC motors, using separate 0-5V control voltage (CV) input sources from a synthesizer....

HL-39799955

Electrical Engineering Technical Report (Based in Canada)

I need an electrical engineer to create a technical report focused on the analysis of an electronic circuit. The report should provide a detailed examination of...

HL-39799994

Modular Touch-Activated Chandelier Design -- 2

I’m developing a residential chandelier made of individual light modules that “wake up” only when they clip to a neighbouring module. What I need from you is th...

HL-39799634

Photo-Crystal Analog Computation R&D

I am advancing a solid-state analog computer that relies on an etched crystal, a single 555-timer–driven flyback stage, and three orthogonally placed electromag...

HL-39798990

Find Freelance Electrical Engineer Role

I’m an Electrical Engineer ready to move into freelance work within the technology and electricity sectors. To make that leap efficiently, I need a partner who...

HL-39799056

Arduino Prototyping and Development

I need an Arduino expert to assist with a prototyping and development project. The project involves using Arduino for both data collection and sensor integratio...

HL-39796321

Industrial High Voltage Engineering Support

I am looking for an expert to provide me a ground-up maintenance manual for HGIS ABB PASS M0 145 kV. The manual should cover Inspection procedures, Replacement...

HL-39797417

PCB & Firmware Engineer

I am seeking a skilled electronics engineer to develop my custom drone. Details are as follows: 1. Flight controller design with Altium Designer 2. Firmware Dev...

HL-39796702

Custom FPV Flight Controller (STM32H7) + 4‑in‑1 ESC (6S/60A) — Betaflight Ready, Analog VTX — Stacked Boards

I’m hiring an experienced hardware designer (or team) to design a matched, stackable Flight Controller (FC) and 4‑in‑1 ESC for an FPV drone. The system must be...

HL-39795390

SC76025 Motor Driver Datasheet

I need the original Texas Instruments datasheet for the SC76025 motor driver, delivered as a clean, un-altered PDF. My focus is purely on the detailed technical...

HL-39794274

Prototype Drone Electrical Design

I am building a prototype drone and need a complete electrical system designed around six axial-flux motors. The core requirement is to keep all six motors in p...

HL-39793022

Dual 20 dB Microstrip Coupler high directivity

I need a compact dual-directional microstrip coupler (6 ports in total) laid out on 0.6 mm FR-4 that will let me read forward and reverse power from 30 MHz righ...

HL-39791025

Project: Universal AC Communication Translator (USG7007)

Project: Universal AC Communication Translator (USG7007) 1. Objective The device (USG7007) is designed to connect, translate, and simulate communication between...

HL-39790095

PCB design and EMC optimization for wellness device

Weil mein Wellnessgerät mit der bisherigen Elektronik leider den EMV Test nicht bestanden hat suche ich nun einen Experten im Bereich EMV Optimierung für mein W...

HL-39789480

Electric bicycle Half H-Bridge Motor Driver Design Review

I have a working prototype of a 24 V brushed-motor driver built around a half H-bridge and an STM32 “BluePill”. The board already powers and spins the motor, bu...

HL-39788471

PCB Design for Particle.IO carrier board

1) Purpose & Scope Compact carrier board with 3 switched 12 V outputs, 2 LAN ports, Particle Boron for cellular/cloud, ESP32 for Ethernet + debug Wi-Fi. Support...

HL-39788226

Programmable, High-Accuracy/Precision Battery-Powered Low Voltage, Low Current Stair Stepper

Produce, test, and deliver a compact, battery-powered setup that can feed a simple resistive load with a programmable staircase of DC voltages. The supply will...

HL-39787165

PCB Operations Management Platform

electronic bussiness and pcb layout

HL-39787091

Compact Audio Playback Device Development

Project: Compact Story Playback Device with Sync LED & USB-C Rechargeable Battery Overview I am looking for an electronics/circuit designer to create a compact...

HL-39786950

Projekt analiza wpływu odnawialnych źródeł energii (OZE) na straty mocy w sieci elektroenergetycznej SN/nN

Poszukuję specjalisty do wykonania analizy wpływu odnawialnych źródeł energii (OZE) na straty mocy w sieci elektroenergetycznej. Preferowana analiza w programie...

HL-39786269

Commercial Power & HVAC Schematics Design

I need detailed electrical schematics for a commercial project. The schematics should cover: - Power distribution - HVAC control Ideal skills and experience inc...

HL-39784439

Arduino Sensor Prototype Development

I'm looking for an experienced Arduino developer to help build a sensor-based prototype. The project involves using an inclinomoter, RFID tag proximity sensor,...

HL-39784444

Advanced Arduino/ATtiny Developer for Night Light Project

I need an experienced Arduino/ATtiny developer to help finalise a handheld night light project using an ATtiny85. The project is mostly built and tested, but se...

HL-39783954

Story Printer Prototype

I’d like to turn five simple push buttons and a 4-inch thermal printer into a pocket-sized “literary vending machine.” Press one button and out comes a short st...

HL-39783704

Arduino Smart Cat Feeder

I need a complete Arduino Uno–based design that can automatically portion out both dry food and water for my cat using real-time scale readings plus the animal’...

HL-39783534

Electromagnetic Water Descaler Creation

Looking for PCB Designer who can develop and design PCB for My project. here i have shared rough blueprint design PCB that fulfill my requirement ESP32-Based El...

HL-39781678

Digital Sewing Machine PCB Design

I have a reliable manual sewing machine that I want to upgrade into a true electronic model. The heart of the conversion will be a brand-new PCB—with its own fi...

HL-39781300

Digital Sewing Machine PCB Design

I have a reliable manual sewing machine that I want to upgrade into a true electronic model. The heart of the conversion will be a brand-new PCB—with its own fi...

HL-39781087

Electrical Maintenance Engineer Needed

I need an experienced maintenance engineer to perform electrical maintenance work. The focus is on industrial systems, requiring expertise in maintaining variou...