Circuit Design projects — HireLancer archive

ID / Date Listing

ADU Electrical Design & Documentation

I need a full, permit-ready electrical plan set for a new accessory dwelling unit. I’m starting from scratch—no prior schematics or panel schedules exist—so the...

HL-40153635

Consumer Electronics PCB Power Design

I have a compact consumer-electronics product that runs directly from the AC mains and now needs a dedicated PCB, or modifications to an early prototype, with r...

HL-40153645

3rd Brake Light Blinker Device

I'm looking for a device that can be attached to the 3rd brake light of passenger vehicles to create a fast blinking effect when the brakes are pressed. The con...

HL-40153115

Minimalistic Network Diagram Design

I need a clean, presentation-ready diagram that shows our network architecture in a way that looks great on a slide deck. The look should stay firmly in the min...

HL-40152681

PCB Prototype Build & Test

I already have the full schematic, PCB layout files and a complete BOM for an airflow-control heater that relies on dual heater coils for both sensing and heati...

HL-40151220

Find Suitable USB-C Plug

I'm looking for someone with either experience or has time to find a suitable USB-C connector Requirements: 1) Part is not a receptable but a plug 2) Part shoul...

HL-40150610

I am PCB designer can you give a pcb design job -- 2

I need an experienced electrician who can diagnose and repair several issues throughout my property—both inside and outside. The scope includes flickering or no...

HL-40150361

Whole-House Lighting Design

I have a new home under construction and I want a complete lighting scheme drawn up before the electrician starts running cable. The brief covers every layer of...

HL-40150227

AM32 8S 4-in-1 ESC Design

I need a compact 4-in-1 ESC that can reliably push 60 A per phase on up to 8 S Li-Po packs while running the open-source AM32 firmware. The brain must be an STM...

HL-40149359

ESP32 Temperature Monitoring Module

The goal is to design a high-voltage, industrial-grade PCB board connecting to 8 external temperature/humidity 1. Core Components & Specifications: ESP32-C3-MIN...

HL-40147872

PCB Upgrade Balance Board

We have a small PCB app. 4X6 inch and want to replace an obsolete chip, we will provide Altium file and all instruction to update the PCB. Old PCB is attached,

HL-40148460

Fix & Assemble Toy Accessory

I have a small toy accessory on my workbench that needs to be put together and made fully functional. All of the components are already here; what I need is you...

HL-40147953

40 GHz Impedance Matching Circuit Design

I need an L-network impedance matching circuit designed for discrete frequencies: 18 GHz, 22 GHz, 26.5 GHz, 30 GHz, 33.2 GHz, and 40 GHz. The circuit should han...

HL-40148137

Industrial Machinery Electrical System Troubleshooting

I need an expert to troubleshoot an industrial machinery electrical system. The issue is that the servo motors are not activating. The following diagnostic test...

HL-40147785

Convert PDF Schematic to OrCAD -- 2

I have a complete schematic saved only as a PDF and I need it redrawn in OrCAD Capture 17.2. The goal is a one-to-one reproduction of the schematic itself—no BO...

HL-40147564

Integrated Network & Electrical Setup

I am rolling out a small-to-mid scale infrastructure upgrade that combines low-voltage data lines with standard electrical cabling in the same facility. On the...

HL-40146684

Radio-Controlled Mower Door Circuit -- 2

I'm looking for an experienced electrical engineer to design a sensor-based circuit for a swinging mower door. The door will be part of a fence system and shoul...

HL-40145404

Redraw PDF Schematic in OrCAD

I have a finished schematic available only as a PDF and I want it recreated in OrCAD Capture 17.2 so that every line, symbol, reference designator, hierarchy le...

HL-40145431

Battery-Powered Electromagnet Design

I need a skilled engineer to design and build a battery-powered electromagnet for a consumer electronics application. Key requirements: - Strength of the magnet...

HL-40145339

Simple Double-Sided PCB Design

I'm looking for a PCB designer to create a simple double-sided PCB for a consumer electronics radio application. The design involves few components and basic ro...

HL-40145384

Battery-Powered PCB Design for Radio

I need a PCB designed for a personal project. The PCB is primarily for power management and is intended to be used in a battery-powered system utilizing usb-c c...

HL-40145396

Simple Consumer Electronics PCB Routing

I have completed the schematic for a small consumer-electronics board and now need the routing finished on a single- or double-layer stack-up. The design has to...

HL-40144556

Looking for Professionals Experienced in Synopsys Sentaurus TCAD (CMOS Inverter Simulation)

Looking for Professionals Experienced in Synopsys Sentaurus TCAD (CMOS Inverter Simulation) ⸻ I am looking for professionals who have hands-on experience using...

HL-40144305

Wearable Watch PCB Layout Design

Developing the electronics for my new smartwatch, I now need the PCB layout completed to production-ready quality. The board must fit a typical round or squaris...

HL-40142477

Tunable UWB LNA Design in ADS

I need a full ADS design flow that faithfully recreates the ultra-wideband LNA shown in the PDF I have attached. The goal is to end up with a working, voltage-c...

HL-40142099

STM32 PWM Fan Control Firmware

I have a small board built around an STM32 microcontroller (STM32L010F4P6) and I simply need firmware that drives two standard 5V fans from PWM output. The spee...

HL-40141558

Convert PDF Schematic to OrCAD -- 2

I have a complete schematic saved only as a PDF and I need it redrawn in OrCAD Capture 17.2. The goal is a one-to-one reproduction of the schematic itself—no BO...

HL-40141088

70A 6-8S FPV 4-in-1 ESC

I need a production-ready four-in-one ESC that can comfortably deliver up to 70 A per phase on 6 S and 8 S Li-Po packs. The board must accept either AM32 or Blu...

HL-40140508

Mixed-Signal Communication Circuit Design -- 2

I need a mixed-signal circuit tailored for a communication system. The design must seamlessly combine signal modulation with accurate data conversion, forming t...

HL-40140485

Mixed-Signal Communication Circuit Design

I need a mixed-signal circuit tailored for a communication system. The design must seamlessly combine signal modulation with accurate data conversion, forming t...

HL-40140415

Custom ESP32 PCB Gerber (2026)

I’ve been developing on the ESP32-WROOM-32 and now need a custom board so I can move my prototype off the breadboard. The board should have ESP32, EM18, RTC, Ca...

HL-40140190

Troubleshoot LG Fridge Cooling Issue

My LG refrigerator has an odd split personality right now: the freezer section stays perfectly cold while the fridge compartment sits stubbornly at room tempera...

HL-40138737

Secure 868 MHz RF Beacon PCB

I need a compact, low-power RF beacon designed around the 868 MHz band for location tracking of assets that move between indoor and outdoor areas. The board mus...

HL-40139165

Ev Aydınlatma Otomasyon Kurulumu

Evimdeki aydınlatmayı akıllı hâle getirmek istiyorum. Endüstriyel ölçekte karmaşaya gerek yok; odak noktam tamamen bir “ev otomasyonu” çözümü olacak. Işıkların...

HL-40138922

10Gbps BNC Ethernet PCIe Card

I need a custom PCI-e network interface card that combines a legacy thin-Ethernet BNC connector with modern 10 Gbps performance. The primary purpose is to let m...

HL-40138582

Hardware & Firmware Feasibility Review

I have an existing hardware design that needs a clear-headed feasibility check before we move further. Your task is to study the current schematics alongside th...

HL-40137720

Square-Gate PS5 Controller Retrofit

I’m looking to modify a DualSense PS5 controller joystick into a true square-gate analog stick for PC play. The job combines both hardware and software changes...

HL-40137742

Single-Layer PCB Design for Home automation using esp32

I'm looking for an experienced PCB designer to create a single-layer PCB for a consumer electronics radio application. The PCB needs to be large, over 10 cm x 1...

HL-40137642

Custom pizza Vending Machine Technology Integration

I’m launching a new vending concept and need a specialist who can design, build, and integrate the complete technology stack that makes a modern machine tick. T...

HL-40137646

SIMCOM A7670C KiCAD Library

I need a clean, production-ready KiCAD library for the SIMCOM A7670C-LASS module that covers two things: 1. A schematic symbol that breaks out every communicati...