Circuit Design projects — HireLancer archive

ID / Date Listing

Guide HX711 en 1 minute -- 2

Je souhaite publier un guide écrit, ultra-concis (lecture ≤ 60 secondes), pour montrer à un public débutant comment utiliser le module amplificateur de charge H...

HL-40390714

PLECS Circuit Simulation Assistance

I need help in plecs software

HL-40390367

Compact Ethernet PCB Design

I have an existing Arduino-based Wi-Fi prototype that already runs stable C++ firmware. I now need the same functionality condensed into a custom PCB no larger...

HL-40390247

Commercial Kitchen Electrical Schematic

I'm seeking an experienced CAD operator to complete a CAD drawing showing all electrical circuits within a new kitchen Ideal skills and experience: - Electrical...

HL-40389803

KiCad Expert for University BMS PCB

Job Title: Experienced KiCad PCB Designer Needed to Review and Finalize 4-Layer PCB for University BMS Project Job Description: I am looking for an experienced...

HL-40389596

PCB Verification

I need my existing PCB reviewed, verified Deliverables • Design review report showing baseline thermal readings, problem areas, and the chosen improvement strat...

HL-40389480

Dual-Board ESP32 Power PCB Design -- 2

I am finalising a smart-helmet cleaning kiosk and now need a proven hardware engineer to turn the control concept into a factory-ready PCB set. At the heart of...

HL-40388596

12V Ethernet Heartbeat PCB

I need a compact-footprint PCB that runs on a solid 12 V input and plugs straight into Ethernet so it can sit inside my equipment rack and let the rest of my sy...

HL-40388245

Multi-Layer PADS PCB Design

I am developing an industrial-grade board and need an experienced designer who works comfortably inside Siemens PADS. The job centers on a tight, multi-layer la...

HL-40388068

KiCad v10.0 Schematic Creation from PDF

This task is for generating a KiCad v10.0 schematic from a given PDF. And if someone wants to also generate the pcb layout for it is welcome but the budget is v...

HL-40386042

Custom RF Control System

I need a matched RF transmitter-receiver pair engineered from the ground up for remote control operation. When the handheld transmitter is activated, the receiv...

HL-40385955

Home LPG Detector Design

I need a complete electronic and mechanical design for a household-grade LPG gas detector that will be mounted in the kitchen. The unit must run from a 230 V AC...

HL-40385540

Certified Electrical Engineer with Spectrum Analyzer (20GHz) Needed for Home and Streetlight Analysis

I am seeking a certified electrical engineer with a calibrated spectrum analyzer capable of measuring up to 20GHz to conduct measurements at my home and on stre...

HL-40385110

6-Layer Multilayer PCB Gerber Design

I need complete Gerber files for a multi-layer printed circuit board that will be built on six layers. The schematic is ready; what I’m missing is a clean, prod...

HL-40383690

Aquacoin AC70

I have a complete schematic ready and now need it translated into a production-ready multi-layer PCB. The board will carry a mix of high-speed signals and power...

HL-40383582

6-Layer Multilayer PCB Gerber Design

I need complete Gerber files for a multi-layer printed circuit board that will be built on six layers. The schematic is ready; what I’m missing is a clean, prod...

HL-40382608

RF Oscillator SI/PI Simulation

I need an expert to perform signal and power integrity simulations for an RF oscillator component. The focus is primarily on RF signaling aspects. Key requireme...

HL-40382657

PCB Design Needed as per Chat.

HL-40381859

Consumer Electronics Diagnostic PCB

I’m building a compact diagnostic tool for battery and need a production-ready PCB to bring the project to life. Because I’m still weighing single-, double- or...

HL-40381430

USB-C Upgrade for Omnikey 3021

I want an HID Omnikey 3021 smart-card reader—converted so it connects through a standard USB-C port instead of USB-A, while still providing full-speed data comm...

HL-40381068

Professional PowerPoint Technical Presentation Creation from Research Paper (High-End Visual Design Required).

I am looking for a freelancer to create a professional, visually-driven technical presentation based on a single research paper (will be provided). Read and ful...

HL-40380303

PCB Layout Design & Optimization (USB + RS485 | EasyEDA) - 18/04/2026 01:32 EDT

We are seeking an experienced PCB designer to review, correct, and optimize an existing PCB design and provide the layout file with the dxf format Project Scope...

HL-40379356

Multi-layer PCB Layout for Radio

I need an experienced PCB designer to convert my schematic diagrams into a multi-layer PCB layout. This PCB is for industrial oil field equipment, and the main...

HL-40378320

Automotive 2-Layer PCB Design

I’m building a compact, two-layer PCB in Altium Designer for the back-light circuit of a bus. The schematic is roughly sketched, component choices are clear, an...

HL-40377432

Esquema Electro Neumático Cortadora de disco

Necesito un esquema electro neumático básico para una cortadora de disco. Quiero algo sencillo y claro, únicamente el diagrama esquemático sin instrucciones det...

HL-40377338

Automotive PCB Design Review – ESP32, I2C, LM393, MCP23017 (12/24V System)

I am looking for an experienced electronics engineer to review a completed schematic for an automotive project before moving to PCB layout. The system is design...

HL-40376931

Data Center Electrical Engineer (On-site)

Electrical Engineer — Data Center Infrastructure (Estonia, on-site) Role: Electrical Engineer / Data Center Infrastructure We are building a micro data center i...

HL-40376591

High Voltage Power Board Design

I need a simple two-sided through-hole mounted board for Data communications over an 120V buss bar. All we need is the board pictured, copied. We need the Cad l...

HL-40376166

Industrial Equipment Electrical Repair

I have an industrial-grade machine that is currently down, and I need someone who can quickly diagnose the fault, repair or replace the defective electronic com...

HL-40375662

Pipeline ELF Transmitter Design

I need a complete engineering solution for an ultra-low-frequency electromagnetic transmitter that operates at roughly 22 Hz and fits inside an inline pipeline...

HL-40375276

Interactive Electronics Schematic Design. THIS IS NOT PCB DESIGN PROJECT -- 3

I’m developing a commercial product that relies on a set of interactive elements—speakers, sensors, and LED displays—and I need clean, production-ready schemati...

HL-40374659

PLC-Based Plant Care System Development

Project Title: Plant Care System using Delta PLC Project Description: I am looking for an expert in Automation and PLC (specifically WPLSoft / Delta PLC) to del...

HL-40374626

Mobile Charger PCB Design

Dear Team, I hope this message finds you well. We would like to engage your services for the design and development of a 20W mobile charger PCB. This project is...

HL-40374101

Electrical Engineer for Micro Data Center, Partner

Role: Lead Electrical Engineer / Data Center Infrastructure Partner Short Description We are building a micro data center in Estonia (100–200 kW) and looking fo...

HL-40373670

Multi-PCB Development for Control System

I'm looking for an experienced PCB designer to create multiple PCBs for an integrated control system. The project includes: 1. Current Sensing PCB: - Type: To b...

HL-40373007

Electronics Engineer Student As Intern Required

HL-40372881

Engine Cruise Control Modelling

I’m putting together the first technical milestone for a car cruise-control study and need a solid, textbook-quality model of the engine control system. The sco...

HL-40372305

LED Vibration Mask Prototype

I’m looking to build a simple wearable mask prototype that combines light and vibration to create a relaxing sensory experience. The device should include LED l...

HL-40372197

Build a Calibrated Magnetic Field Coil for Lab Use

Project Description I’m looking for an experienced electronics or instrumentation engineer to design and build a small calibration coil system that generates a...

HL-40372149

Handheld Medication Dispenser PCB Integration

I’m building a palm-sized device that helps automate at-home medication. Inside it sit two independent plungers driven by micro servos, a vibration motor, a sma...