Circuit Design projects — HireLancer archive

ID / Date Listing

5 kW 8-MPPT solar micro Inverter Design

I have reached the final-design phase of a 5 kW solar micro-inverter that must handle eight independent MPPT inputs while remaining grid-tied, battery-ready, an...

HL-40603397

Nissan Rogue BCM Replacement

I need help locating a BCM and programming the Body Control Module (BCM) on my 2017 Nissan Rogue. The current BCM is causing electrical problems and issues with...

HL-40603150

Circuito Lampada LED Ricaricabile

Sto progettando una lampada da tavolo di dimensioni medie (circa 20-40 cm di altezza) e mi serve un professionista che realizzi il relativo schema elettronico....

HL-40602931

PCB Design with Sensors and Rechargeable Battery

Compact Battery-Powered Sensor PCB Design (ESP32-S3) — KiCad Preferred I'm looking for an experienced PCB designer to develop a compact, battery-powered PCB, id...

HL-40602799

KiCad Footprint and Schematic Design

I'm seeking an experienced KiCad user to assist with two tasks: creating footprints and designing a single-sheet schematic. Requirements: - Footprint Creation:...

HL-40602822

Refine EasyEDA PCB for Reliability, Cost efficiency

I already have a complete EasyEDA Pro project on hand; I simply need it refined, not rebuilt. You’ll open the existing files, follow my placement guidelines, an...

HL-40602448

Progettazione Cablaggio Commerciale

Sto riorganizzando l’impianto elettrico di un ambiente commerciale e ho bisogno di un progetto focalizzato soprattutto su cablaggio e distribuzione. Il cuore de...

HL-40601531

Simple KiCAD PCB Layout

I need a layout completed for a simple 2-layer board in KiCAD. This is a battery-powered design with a microcontroller and a few digital I/O. The schematic is c...

HL-40600245

Raspberry Pi Custom Carrier Board Design

Custom Carrier Board Design (CM4 + ESP32-S3)2 3Project Overview4 5Looking for an experienced hardware designer to develop a custom KiCad carrier board for a bat...

HL-40600264

Small Signal Processing PCB Design

I'm looking for a skilled PCB designer to create a small (less than 5x5 cm) PCB for signal processing purposes. The board will need to incorporate a microcontro...

HL-40599856

Tri-Mode Communications PCB Design

I’m building a board that must move data over three very different channels—power-line communication (PLC), short-range wireless, and a hard-wired link—all on t...

HL-40599876

Engineer for Advanced PCB Design & Programming -- 2

This is revised posting from last post. We are looking for an engineer team which has a good PCB design skill and motor driver programming skill. This project i...

HL-40598444

Low Battery Detection System

I need a small pcb board powered by 9V battery that is connected with the board through a JST-ph 2.0 mm 2 pin connector The board has one 9V+ and 9V- output and...

HL-40598099

ESP32 Electrolysis PCB Design

I’m building a compact electrolysis hair-removal unit and need a full schematic and PCB layout that an assembler can take straight to production. Core requireme...

HL-40597760

Health Band Multi-Layer KiCad PCB

I need a seasoned KiCad specialist to turn my wearable health-band concept into a production-ready, multi-layer PCB. The board’s sole purpose is data communicat...

HL-40597523

Digital Signal Processing Circuit Schematic

I have a project that calls for a digital-only signal-processing circuit of moderate complexity. I already know the functional blocks I need, but I’m looking fo...

HL-40596940

PCB Redesign and Optimization

The project involves modifying an existing 2-layer automotive printed circuit board (PCB) with approximate dimensions of 100 mm × 80 mm (to be confirmed after r...

HL-40596595

Electrical Drawings for 4 Flats

Urgent for next 24 hours I need comprehensive electrical drawings for four flats in London, adhering to British Standards. The drawings should include: - Wiring...

HL-40596123

2-Bit Transistor Counter Design

أرغب في إنجاز مشروع تجريبي صغير لِعَدٍّ ثنائي البِت مبني بالكامل على الترانزستورات (من دون أي دوائر متكاملة). ما أحتاجه بالتحديد هو مشاركتي التصميم العملي للدائ...

HL-40595813

STM32 Industrial Sensor Hardware Design

I need a robust hardware platform built around an STM32 MCU that can sit inside a power-plant environment, pull data from existing equipment over RS-232 and RS-...

HL-40595855

Multi-layer PCB Design for Radio

I'm seeking an experienced PCB designer to create a multi-layer PCB for a consumer electronics radio device. The PCB will need to interface with microcontroller...

HL-40595623

Complete Electrical Coursework Quizzes -- 2

I am midway through an online electrical training program and still have two graded components left in each module: the “learning activity” and the “content qui...

HL-40595448

Breakout Board Redesign for Enhanced Usability and Functionality

I need a redesign of an existing breakout board prototype with the following requirements: 1. Remove all pinholes. 2. Ensure the design is firm and avoids commu...

HL-40595004

Review Raspberry CM5 Carrier Board

I’ve completed the first-pass schematics and PCB layout for a carrier board built around the Raspberry Pi Compute Module 5. The design includes an on-board powe...

HL-40595036

Industrial Automation Embedded PCB Design

This project centres on a compact embedded platform that will sit inside an industrial automation cabinet and take charge of continuous monitoring and control....

HL-40593511

PCB Repair Specialist Wanted

Looking for a PCB designer to fix PCB routing issues on gerber. Will need to convert the gerber first and fix the issues using the schematic. Must start immidia...

HL-40592679

Single-Layer PCB Design, Delhi

I’m refining a compact control-circuit project that must live on a single-layer PCB. The board will carry a mix of surface-mount and through-hole parts, so the...

HL-40592671

2-to-1 Multiplexer Circuit Diagram

I’m working on a computer systems and organization assignment and need a clean, well-labeled logic architecture for a 2-to-1 multiplexer. The diagram may be han...

HL-40592399

Automation Engineer for Switch-Actuator Integration

I'm seeking an experienced engineer to connect push-button electronic switches to linear actuator mechanisms. This setup is intended to automate a process. Key...

HL-40591835

Residential to Industrial Electrical Work

I have a steady flow of electrical projects that range from single-family homes to busy commercial spaces and light industrial facilities, and I need one reliab...

HL-40591659

Battery-Powered Analog PCB Design

I have an all-analog circuit that I now need translated into a clean, production-ready hardware package. The job is two-fold: first, capture the complete schema...

HL-40591553

Pakistani PCB Layout Specialist Needed

I need single-sided, double-sided, and full multi-layer PCB layouts created for mixed-signal work. The boards combine analog and digital circuitry and will be u...

HL-40591377

Diseño PCB prototipo durable

Estoy desarrollando un proyecto personal y necesito el diseño de un PCB que me sirva como prototipo de prueba. El circuito debe combinar dos requisitos clave: a...

HL-40586439

High-Power Class D Audio Amplifier With Pre-Amp & Active Cross-Over

I need a Pre-Amp with volume, bass, and treble controls designed for professional audio equipment. Additionally, I require a 2-way and 3-way Active Cross-Over t...

HL-40590830

KiCad Two-Layer ESP32 PCB

I have a complete written pinout for a small board built around an ESP32-WROOM module, I have the circuit assembled with bare wires and I now need that schemati...

HL-40590347

High-Voltage Gas Insulated Switchgear Design

I need a high-voltage gas insulated switchgear (GIS) consultant designed specifically for industrial applications. The switchgear must operate at voltages 138kV...

HL-40589350

Standby Generator PCB Design

I'm looking for an experienced PCB designer to create a control board for my standby generator. The PCB should manage an Automatic Transfer Switch (ATS) and eng...

HL-40587446

ESP32 Ball Motor Control Integration

I’m building a handheld device that lets me roll a ball across any flat surface and have it actively steer itself so the pen mounted inside draws in the exact d...

HL-40586924

Waterproof Anchor Control PCB, Case and Waterproof external connectors

I need a compact, reliable PCB and a compact case design. The board contains an ESP32 that will run the anchor-control logic on my boat and live inside a fully...

HL-40586330

7037IC固件无损提取

我已从设备上安全拆下 7037IC 芯片，物理状态完好。现在希望在对芯片零损伤的前提下，一次性读取出其中的手机操作系统固件。为协助你完成工作，我可以提供： • 高分辨率引...