Circuit Design projects — HireLancer archive

ID / Date Listing

EasyEDA Schematic and PCB Modifications

Project Description: I have an existing EasyEDA project with files for both the schematic and PCB (EasyEDA files and PDFs). The scope of this project involves m...

HL-40053663

Residential Sub-Panel Load Calculation

I have a detached structure that must pass plan review, and the city has asked for a complete electrical package within one week of my sending you the drawings...

HL-40044926

STM32 Nucleo Input Board Design

I need a plug-on input board for an STM32 Nucleo that cleanly brings five external signals and one digital contact into the MCU. All work must be done in KiCad,...

HL-40053130

Electrical Neurostim Headband Prototype

I’m building a wearable headband that modulates neural activity through safe, low-level electrical stimulation to help correct dopamine and serotonin imbalances...

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Game Boy Link adapter RP2040 Board Optimization

Hello, I am looking to make an updated version of this board but with all of the needed pico and level shifter components on a single board that uses usbc https...

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Smart Parking Gate Logic Design

I have already drafted a Smart Parking Gate Controller and will share the exact list of inputs, outputs, and the eight required operations as soon as we start....

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Op-Amp Neuron SPICE Simulation

I need a compact yet faithful SPICE-level model of a single artificial neuron built with operational amplifiers. The goal is to show how the electrical signal f...

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PCB Rework Soldering Specialist

Contract Cable Harness Soldering Technician Position Summary We are seeking a highly meticulous Contract Cable Harness Soldering Technician for a temporary enga...

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Industrial Automation Keypad Module Development

This project involves the development of a compact, sealed, and intelligent keypad module designed for industrial automation environments. The system integrates...

HL-40050661

4x4 Single-Layer PCB Design

I need a pcb using an ESP32-S3-wroom1. The board will have a usb-c port for programming. The board will use a 7.2v nimh battery connected to a buck converter to...

HL-40050474

24V Sensor AND PCB Design

I need a compact PCB that takes two 24 V, 3-wire photo-optic sensors and logically ANDs their outputs into a single sinking output. The board must expose nine s...

HL-40050517

Convert Electrical Drawings to Schematics

I need electrical line drawings converted into schematic diagrams. Requirements: - Convert from Visio and PDF to schematics - Create single-line diagrams - Adhe...

HL-40050341

Simulink DTC Fault tolerant control -- 2

I already have a fully-functional Simulink model that performs Direct Torque Control on a six-phase PMSM in healthy conditions. Your job is to turn it into a fa...

HL-40050035

Simulink DTC Fault tolerant control

I already have a fully-functional Simulink model that performs Direct Torque Control on a six-phase PMSM in healthy conditions. Your job is to turn it into a fa...

HL-40049076

Compact High-Speed PCB Design

Note: In Person Project, in Banglore, India and/or Mumbai, India Note: Experience with High Speed PCB Design is mandatory / portfolio projects with EMMC. The pr...

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Audi 4.0T Swap Wiring Diagram

I’m dropping a 2016 Audi S8 4.0 TFSI into my 2012 Audi A4 Avant and need one clear, consolidated wiring diagram focused on the engine-side ECU connections. I al...

HL-40048118

Verify My Circuit Analysis Solutions

I have created a batch of AC /DC circuit-analysis exercises and now need a second set of expert eyes. The problems cover classic resistor–capacitor networks, tr...

HL-40048021

Consumer Device Double-Layer PCB Design

I have a new consumer-electronics build that hinges on a compact, double-layer PCB dedicated to clean, efficient power management. The board will sit at the hea...

HL-40047604

Remote Controls Engineer Needed

Position Overview: We are seeking a skilled Electrical and Electronics Engineer (Remote) to join our team. In this role, you will design, analyze, and support t...

HL-40047161

SAW Filter PCB Layout Verification

I am routing a PCB that hosts a surface-mount SAW filter intended to clean up an RF signal in the VHF band. I want a fresh, expert pair of eyes to make sure the...

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IoT Sensor PCB Review

I need a senior hardware/PCB engineer with direct experience in LTE-M/NB-IoT designs to perform a thorough pre-production review of my battery-powered IoT envir...

HL-40045764

Earbud PCB Schematic Design

I need a clear, production-ready schematic for an in-ear wireless earbud PCB. I will handle the final board layout and manufacturing myself, so what I am really...

HL-40045540

Smart Key Range Booster Build

This is a two-device RF relay system that extends the communication range between a car key and the car. I am looking for only UK developers

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KiCad PCB Design & Manufacturing Files for Espresso Machine

I am looking for an experienced Electronics Engineer to design a PCB for espresso machine controlling board, an embedded hardware project. The full hardware spe...

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Electrical Engineering Consultancy

I'm seeking an expert in electrical engineering, specifically in power systems, for design and analysis consultancy. The focus will be on commercial power distr...

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Reversing engineering SM-A156E Flex Cable Diagram

I need a fully annotated wiring diagram for the main flex cable on the Samsung SM-A156E (CTC FPCB SI432 SI OCTA). The drawing must capture every track and via,...

HL-40040843

Relocatable Aluminium Shed 25 x 35 x 8.5 -- 2

Looking for an Electrical Engineer – Simple Lighting & Wiring Design I need an electrical engineer to prepare basic drawings and calculations for a small projec...

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Plano Eléctrico Tienda Minorista

Necesito un plano eléctrico detallado para la zona de ventas de una tienda minorista. Ya dispongo del trazado arquitectónico en formato SVG; lo compartiré apena...

HL-40040425

PCIe x16 Quad Bifurcation Breakout PCB

I need a PCB layout produced and delivered in a compatible Circuit Studio format. The board will act as a four-slot bifurcation breakout for a PCIe x16 edge con...

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AI Voice Assistant PCB Design

I have an early-stage prototype of our in-house AI voice assistant and a clear spreadsheet listing every connector, interface and mechanical constraint we must...

HL-40039937

EcoDial Selectivity Study

I already have a complete single-line diagram, breaker model numbers, cable lengths, and load data; now I need the full Selectivity (coordination) Study carried...

HL-40039342

Pi Zero Camera PCB & Case

I need a compact, single-board solution that combines a Raspberry Pi Zero 2 W, its camera module, an ADXL accelerometer, and a TP4056 charging circuit able to s...

HL-40038694

Small Audio Board KiCad Layout

I have a detailed design specification for a moderate-complexity audio circuit and need it turned into a production-ready PCB. What I have: I have a complete pi...

HL-40038136

Hospital AHU Control Panel Installation: Hyderabad, India

I need an experienced AHU / HVAC technician to re-wire an existing air-handling unit and mount a brand-new control panel in a hospital setting. The job involves...

HL-40037362

VLSI Logic-to-Layout Final Assignment Assistance

Title: Need Help Completing VLSI Logic-to-Layout Final Assignment (Coursera – Part 1 & 2) Description: Hi, I’m currently working on the final assignments for th...

HL-40037271

ESP32 Shield Design & Firmware Adaption

# Project Description: ESP32 Shield PCB + Firmware for Self-Balancing Robot I am seeking an experienced PCB designer (and preferably embedded developer) to crea...

HL-40037024

Commercial Electrical Plan for TI Permit

I need a basic electrical plan for a tenant improvement permit. The plan should cover power outlets and switches in the offices and common areas of a commercial...

HL-40036773

Wearable PCB with Battery Management

I am building a very small, consumer-facing device and need a production-ready PCB that will slip neatly into a compact enclosure. Space is tight—think wearable...

HL-40036527

High-Voltage Power Management Circuit

I need a complete analog power-management solution that comfortably operates above 24 V; the working range will likely sit between 28 V and 48 V. I already have...

HL-40036567

20kV Portable HV Supply Design

I am developing a portable high-voltage power supply for scientific research experiments and need an experienced HV circuit designer to turn the concept into a...