Circuit Design projects — HireLancer archive

ID / Date Listing

20kV High-Voltage Supply Design

I need a complete 20 kV DC power-supply design that can serve rigorous scientific-research setups. The final design has to be electrically safe, mechanically ma...

HL-40035114

Neon/Plasma Tube High Voltage Driver Design (for a desk ornament, nothing fancy. my personal skills are not adequate)

Title: High Voltage Driver & Startup Circuit for Neon/Plasma Tube Lighting Description: I’m looking for an experienced electronics engineer to design a high vol...

HL-40035077

Planos Eléctricos Comerciales Detallados

Necesito que desarrolles los planos de distribución eléctrica para un proyecto comercial de tamaño medio. El objetivo es obtener láminas claras y listas para ap...

HL-40034530

Planos Tablero Eléctrico Industrial

Necesito documentar por completo un tablero eléctrico de 400 mm de alto, 300 mm de ancho y 200 mm de fondo que incorpora una llave térmica, dos controladores de...

HL-40034213

FPGA Signal Processing for Wireless Comm

I need an FPGA expert to implement signal processing code for wireless communication. The baseline modulation technique is QAM, with multiple waveforms to be pr...

HL-40033062

7 GHz Synthesizer PCB Design -- 2

I already have the PLL/VCO core defined—our board will lift that portion straight from the Analog Devices ADF4372 / ADF4356 evaluation schematics—so the real ta...

HL-40033241

Custom Small-Scale PCB Design Expert Needed

I am looking for an experienced hardware engineer to design a small custom PCB that includes: Required Electronics 1. Low-power Microcontroller • Must support 1...

HL-40032997

7 GHz Synthesizer PCB Design

I already have the PLL/VCO core defined—our board will lift that portion straight from the Analog Devices ADF4372 / ADF4356 evaluation schematics—so the real ta...

HL-40032847

Custom High-Voltage Boost Converter

I have a proprietary boost-converter topology sketched out and will share the full schematic block diagram with you. Your task is to turn this concept into a wo...

HL-40031489

PCB Industrial ESP32 con HMI

Propuesta de proyecto Se solicitará el diseño de un producto que contenga los siguientes componentes y funcionalidades: Módulo CPU para el control lógico progra...

HL-40030505

Flexible PCB for Haptic Wearable

We are looking for an experienced flex PCB designer to create an ultra-compact 80 mm polyimide flex PCB for a wearable device. We already have: A complete mecha...

HL-40030361

Reverse Engineer Industrial PCB into a Schematic

I have a two-layer board taken from a vending machine, and I need the full schematic recreated by reverse engineering the PCB from photo's and (in extreme condi...

HL-40030218

Office Electrical Wiring Plan Drafting

I need detailed electrical wiring drawings for a new open-plan office fit-out that spans six individual zones—roughly the equivalent of 4-6 traditional rooms—in...

HL-40030081

Diseño Botones Capacitivos

I am working on a project to develop an application using an ESP32 microcontroller. The main goal is to create an efficient, responsive and stable schedule to h...

HL-40029514

Electrical Drawings Residential Home

I’m looking for an experienced electrical designer to create a full electrical plan set for a custom single-family home located in Greenville, South Carolina. S...

HL-40028844

Office Electrical Plans Inside Warehouse

I’m carving out a few small office rooms inside an existing warehouse and now need a full set of electrical plans that will pass permitting and guide the instal...

HL-40026857

Elderly Mobility Aid Development

I'm seeking an experienced engineer to design and build an electronic mobility gadget specifically for the elderly, reminiscent of a walker. This project aims t...

HL-40026355

Dual Independent Arduino Blink

I have a small Arduino experiment in mind and I’d like you to write the sketch for it. The board will drive two separate standard LEDs, each following its own b...

HL-40025307

Arduino & Wemos IoT Assistance

I’m midway through an IoT build that combines a main Arduino board with several Wemos D1 Mini modules. The goal is to get reliable, secure two-way communication...

HL-40024949

Asynchronous Sequential Network Solutions

I need two asynchronous sequential network design problems worked through in the same depth and order as the guided sample in my PDF. Problem 1 is #526 (picture...

HL-40024699

Portable Industrial PCB Design

I’m developing a compact, handheld industrial device and need a PCB engineered specifically for that environment. The board must house a central microcontroller...

HL-40024219

Intermediate Renewable Energy Power Design(PSCAD Design)

I need a complete power-stage design that fits the “intermediate” level of complexity we discussed. The end use is clearly renewable-energy systems, and I will...

HL-40023451

ESP32 Triple-Camera PCB Design

I need a compact PCB that lets one ESP32 talk to three OV5640 cameras, one at a time, then push the captured frames out over Wi-Fi. The board must handle all ha...

HL-40023337

Robotic Arm Control Report Upgrade

I have already built and tested my senior design project, “AI-Enhanced Robotic Arm Control Using EMG Signals.” What I now need is a polished, technically rigoro...

HL-40022806

Arduino Power Outage Alarm

I need a complete design for a small, Arduino-Uno–based power-outage alarm that fits the following brief: – The system runs from a 12 V DC wall supply during no...

HL-40021366

Urgent Audio Transformer Overcurrent Fix

Tôi đang vướng lỗi quá dòng trên bo mạch xử lý biến áp âm thanh và cần một kỹ sư có mặt tại Hà Nội để khắc phục ngay. Mạch hiện hoạt động không ổn định, đo dòng...

HL-40021248

KiCad Schematic and PCB Modification

I need assistance modifying an existing KiCad schematic and PCB layout. Schematic Modifications: - Changing component connections as needed. PCB Layout Changes:...

HL-40018614

PSpice Circuit Reliability Upgrade

I already have a working PSpice schematic and an accompanying bill of materials. What I need now is a focused redesign that raises overall reliability without c...

HL-40017616

Arduino Function Generator PCB Design

I need a compact, microcontroller-based function generator that can output clean sine, square, and triangle waves from 1 MHz up to 10 MHz. I am standardising on...

HL-40017486

Industrial PCB Design

Project Overview: We're building an industrial-grade robot module and need a production-ready PCB designed from the ground up. The board will serve as the core...

HL-40015713

Industrial Control Systems Wiring Diagram

I need a detailed electrical wiring diagram for an industrial control system. The diagram will be used in an industrial setting, so it needs to be precise and p...

HL-40015451

Arduino Air Pressure Monitoring System

I'm looking for an Arduino-based air pressure monitoring system that activates a sound buzzer. I'm currently using a BMP180 sensor with acceptable results. Key...

HL-40014712

LED Clock Kit PCB Layout

I’m putting together a small, beginner-oriented electronics kit and need a clean, well-organized PCB layout to bring it to life. The board’s sole purpose is to...

HL-40013903

electrical timer integration for 120v

Hi I have a machine that I build and it runs a power supply and a fan and timer. The timer model recently changed and now the timer fails every time. I may have...

HL-40012593

Raspberry Pico Espresso Controller PCB

I need an experienced PCB designer to create a custom control board for an espresso machine. The PCB will use Raspberry pi PICO and will receive signals from va...

HL-40012197

Arduino ESP Expert Assistance Required

I’m looking for a seasoned Arduino-ESP developer who can jump in quickly and help me move my project forward. The exact tasks will be agreed together once you r...

HL-40011388

Mixed-Signal Temperature Front-End

Mixed Signal temperature Sensor Front End Simulate in PSpice. Connect device physics → analog front-end → digital interface. Optimize for noise, bandwidth, powe...

HL-40010850

Diseño 2.0 de PCB para cerradura electrónica – Integración de módulos (ESP32, DRV8825, UPS) – Proyecto MVP

Descripción del proyecto Buscamos un diseñador electrónico con experiencia en integración de módulos comerciales y diseño de PCB con antenas externas para desar...

HL-40010200

Raspberry Pi Pico Aquarium Automation

Environmental Monitoring: • Temperature: Use of a digital sensor (DS18B20 or similar) for accurate readings. • Water pH: Implementation of the pH sensor using t...

HL-40009823

Compact 3×AA to 200–400 V DC Boost Converter Prototype with Integrated Digital Display

The immediate goal is a compact, battery-powered prototype that turns three AA cells into an adjustable 200 – 400 V DC output. An off-the-shelf DC-DC boost modu...