PCB Design and Layout projects — HireLancer archive

ID / Date Listing

Automotive braking system board improvement (Version 2)

After successfully finalizing our first version of our automotive braking system board, we would now like to improve the design to make it modular, safe, reliab...

HL-40224317

Circuito Potenza 230V Multiuscita

Ho già costruito alcuni prototipi di un circuito in grado di commutare un’unica linea da 230 V, 16–30 A, verso 4, 8 o 12 uscite; --senza perdita di potenza--, n...

HL-40220163

PCB designer for a simple LED board

I'm looking for somebody who can fix my pcb, all it has are leds on top

HL-40217122

Battery Management System Circuit

I need an electronics specialist based in Mumbai who can take a lithium-ion battery management system from concept to a tested prototype. You will work with me...

HL-40215073

Miniature 433 MHz PCB Layout

I already have a complete analog FM-transmitter schematic for 433 MHz (BFR93W transistor, electret mic front end, bias and tank network). What I need now is a c...

HL-40213846

ESP32 Traffic Light PCB Layout

I need an experienced electronics/PCB engineer to design a reliable, 24/7-operating traffic light controller PCB. This is a safety-critical system (not a hobby...

HL-40212114

165 V DC-DC Converter Design

I need an engineer to take my concept for a high-voltage DC-DC converter and translate it into a complete, build-ready design that slots straight into a renewab...

HL-40211934

Design and build a 741 operational amplifier.

Peace be upon you. I want a complete explanation of the operational amplifier circuit, with practical implementation from scratch using transistors, and buildin...

HL-40211164

Système domotique embarqué sans fil

Je souhaite développer un système embarqué destiné à l’automatisation domestique. L’objectif est de concevoir une carte compacte capable de dialoguer, via des m...

HL-40210710

Adaptar PELTOR X2 con ANC (Cancelación de Ruido Activa)

Necesito integrar cancelación de ruido activa (ANC) en mis protectores auditivos 3M PELTOR X2, pensados para un entorno industrial. El objetivo es que el nivel...

HL-40207261

Optimize Mission-Critical Control Boards

I maintain a fleet of mission-critical electronic control boards that must run flawlessly around the clock. Although the hardware is operational, I want to sque...

HL-40205621

Wearable Exoskeleton PCB Design using STM32F767ZIT6 IC

I’m building a wearable exoskeleton and need a dedicated PCB that brings all core electronics onto one compact board. The board must integrate: • Microcontrolle...

HL-40204246

Balanced Audio PCB Layout Design

I already have the full Bill of Materials and a set of clear reference photos; what I still need is a production-ready PCB layout that ties everything together....

HL-40203799

PCB Component Identification & Visual QC support for development of AI based PCB Inspection System

We are developing an AI-based Automated PCB Inspection System and are currently working with a large set of assembled PCBs that are already fabricated and avail...

HL-40202916

Compact BLE PCB for Wearable GPS

A NRF52 based low power consumption BLE tag with 4G and GPS capabilities. Features: Microcontroller: NRF52, any GPS + 4G module operable in south america Power...

HL-40200394

Intelligent Charger Development

45w Intelligent dual port charger

HL-40200163

Circuit Board Design for Appliance

I'm looking for a skilled electronics engineer to design a small circuit board for a home appliance. Requirements: - Use a 0.05 hp motor - 12V 600DC connector -...

HL-40196813

PCB Technical Blog Content 02/02

PCB Technical Blog Writing Guidelines Each week I publish in-depth, EEAT-driven articles that demystify printed-circuit-board design and manufacturing for an au...

HL-40192428

Sim Racing Wheel Controller – STM32 USB HID, EMI-Robust PCB + Firmware (Gated Phases)

Project Overview We are developing a commercial sim racing wheel controller (target retail ~£400). This is a production product, not a hobby project or one-off...

HL-40190429

ESP32-Based IoT Device Hardware Design

I need a full-stack hardware design for an ESP32-based IoT product that is ready to hand straight to a contract manufacturer. The board must integrate a tempera...

HL-40188225

Wearable Exoskeleton PCB Design using STM32F767ZIT6 chip

I’m building a wearable exoskeleton and need a dedicated PCB that brings all core electronics onto one compact board. The board must integrate: • Microcontrolle...

HL-40182163

Advanced Li-Ion Battery Charging System

1. System Overview * Total batteries to be charged simultaneously: 100 Li-Ion batteries * System divided into 5 racks, each rack charging 20 batteries * Each ra...

HL-40178995

Wearable biosignal research prototype (EMG + IMU + ToF)

I have a detailed technical PDF describing a custom multi-sensor embedded system. I need one functional prototype for internal research. No industrial design, n...

HL-40176262

40-Pin Laptop LCD Controller

I am developing a new 40-pin controller board for an in-cell touch laptop display and need a turnkey, production-ready design. An image of a similar commercial...

HL-40174444

PCB Layout Engineer Needed - KiCad

I'm looking for an experienced PCB layout engineer to help with a prototyping project using KiCad. The PCB will need to support both through-hole and surface-mo...

HL-40170558

PCB Technical Blog Content - 22/01/2026 11:09 EST

PCB Technical Blog Writing Guidelines

HL-40169905

Bidirectional 48-24 V Converter Design

I already have a working MATLAB model of a 48 V ↔ 24 V bidirectional DC-DC converter and now need to turn that simulation into real-world hardware and firmware....

HL-40165203

End-to-End Wearable Device Development

I’m creating a wrist-mounted wearable that unifies fitness tracking and health monitoring, and I need the full stack—both software and hardware—taken from conce...

HL-40162262

Simple Single-Layer PCB Design

I am working on a university hardware project in KiCad and I have a deadline in 5 days. I am looking for help with the hardware design only. The task is to desi...

HL-40161829

Compact ESP32 Voice Assistant PCB

I’m building a small-footprint “Macho” voice-assistant board and need a complete hardware package created in EasyEDA. The core is an ESP32-WROOM-32 (38-pin dev...

HL-40161496

RC Lap Timing Software -- 2

Single-Camera / RFID Lap Timing System for RC Racing Arena Project Overview We are building a standalone lap-timing system for an indoor RC car racing arena, us...

HL-40161090

Industrial Machinery Motor Control PCB

I'm seeking a skilled PCB designer to create a circuit board for industrial machinery. The primary function of this circuit board is to control DC motors. Key R...

HL-40159412

Compact ESP32-C6 IoT PCB-V1

The objective of this project is to design Kicad general-purpose IoT controller based on the ESP32-C6-WROOM-1U. The board is intended for external environmental...

HL-40155995

Circuit Board Replication Expert Needed

I'm looking for a skilled professional to help me replicate a circuit board. The circuit board is for a radio device.See below https://kitronik.co.uk/products/2...

HL-40155868

300 W Pure-Sine Inverter Design 512 bit

I’m putting together a microcontroller-based inverter for industrial equipment and need an engineer to translate my specs into a production-ready design. The go...

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-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-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...