Circuit Design projects — HireLancer archive

ID / Date Listing

Custom Electrical Control Panel Design

I need a skilled professional to design and build an electrical control panel tailored to specific requirements. Key Requirements: - Primary function: other (pl...

HL-40310326

Custom ESP32-S3 Controller PCB

I need an experienced KiCad 8.x designer to turn my FS-CTRL-1P controller concept into a production-ready board for JLCPCB. The design combines an ESP32-S3 MCU...

HL-40310215

K2633 PCB Replica Design

I want to put the VELLEMAN-KIT K2633 back into production, but the original PCB that shipped with the kit is long discontinued. I still have the full set of leg...

HL-40309816

Arduino-based electrical stimulation system troubleshooting & repair London

Description: I am looking for an experienced electronics / Arduino developer to help troubleshoot and repair an existing Arduino-based electrical stimulation sy...

HL-40308468

M12 PCIe LAN Card Design

I need a skilled engineer to design a circuit for an M12 MPCie/ PCIe isolated LAN card. The card must support high-speed data transfer at 1 Gbps. Key requiremen...

HL-40308029

KiCAD PCB Review & Improvement

I have a compact, two-layer board built around a Seeed Studio XIAO S3 (SMD), an RS-485 transceiver and a buck converter that allows 5-24 V DC input. The KiCAD p...

HL-40307165

Solar-Powered Pump Control Circuit

I need an electronic circuit board designed to control a small solar-powered water pump. The pump should be activated based on temperature differences detected...

HL-40307073

Commercial Electrical Design Specialist

I'm seeking an experienced electrical designer for a new commercial installation. The project covers: - Lighting systems - Power distribution - Emergency system...

HL-40306639

Railway Safety Engineer for Hardware Analysis

Contract Functional Safety Engineer – FMEDA / FTA / IEC 61508 SIL3 / Railway Seeking an experienced contractor to complete FMEDA, FTA, and hardware safety analy...

HL-40306087

Wearable Fitness Tracker PCB Design

I am building an ultra-compact wrist-worn fitness band that must reliably track heart rate and steps while syncing over Bluetooth. I already have the industrial...

HL-40305889

Modbus to USB Adapter Integration

I need a Modbus signal, carrying sensor readings, from a 6-pin military connector converted to a female printer cable connector to connect to a laptop USB port....

HL-40305401

Arduino Control with Python

I'm looking for a skilled Python programmer to help with an Arduino project. Requirements: - Use a distance sensor (LIDAR) and a vibration (G-force) sensor. - M...

HL-40305168

Revise Commercial Power Distribution Drawings

Here is what I need from you: I need a revision of my electrical drawing, as per the requirements of PG COUNTY, MD USA The drawing is attached, also a photo of...

HL-40304862

Multi-Layer PCB Design for Industrial Equipment

PCB Designer – Automotive / Industrial Multi-Layer PCB (Schematic Review + Layout) Job Description: We are looking for an experienced PCB designer to review an...

HL-40304279

Piezoelectric Wind Energy Circuit Assembly

Project Title Piezoelectric Energy Harvesting Circuit – Prototype Assembly (Using Provided Components) Project Description Project related to piezoelectric wind...

HL-40303858

Custom Randomized Mouse Mover

I need a plug-and-play USB dongle that quietly presents itself to the laptop as a standard HID mouse and then, without any host software, begins moving the poin...

HL-40300743

PCB Board Design for BLE Device & Load Cell Sensor

# Design two PCB Boards in EasyEDA for later JLCPCB manufacturing, including assembly. I am open to professional recommendations regarding peripheral components...

HL-40299776

Planning & Design of Utility Network Layout for Approved Plot Layout

Project Overview: We are seeking an experienced Civil Infrastructure / Utility Design Engineer or Infrastructure CAD Specialist to prepare a complete planning a...

HL-40299379

ESP32 PCB Optimization & Revision

I already have a fully routed EasyEDA project built around an ESP32 running MicroPython. The first prototypes work, but the rest of the circuitry is over-engine...

HL-40299307

Wearable Personal RF Shield

I want a piece of wearable technology that creates a protective bubble just around my body, blocking or seriously attenuating incoming RF signals while also giv...

HL-40298716

Motor Interlock Circuit Development

I need a motor interlock circuit designed in Codesys. The primary purpose of this circuit is as a safety mechanism, ensuring that two motors cannot operate simu...

HL-40298712

Bimbingan Elektronika & Perangkat Keras

Saya seorang inventor yang masih sering menemui jalan buntu ketika masuk ke ranah elektronika dan perangkat keras. Saya ingin meningkatkan keterampilan teknis s...

HL-40298605

Compact KiCad PCB Design

PCB Design Brief Timeline Media Dock Controller Board This project requires a KiCad PCB design for the first prototype of a open source Media Dock. The dock is...

HL-40297850

FPGA Programmer for Data Processing

I need an experienced FPGA programmer to assist with a data processing application. Key Requirements: - Proficiency in at least one of the following FPGAs: Xili...

HL-40297400

Hardware Engineer Needed – Smart Ring PCB/FPC Design (BLE Wearable)

We are developing a luxury smart ring wearable and are looking for an experienced hardware engineer to design a compact PCB/FPC for this device. This is a very...

HL-40297094

120 V DC Power Supply Design

I am putting together a 120 V DC source for a high-current, high-power three-phase AC motor installation and need a rock-solid schematic that I can hand straigh...

HL-40297097

Designe schema and PCB for RFID reader for monitoring bees with LXMSJZNCMF-210 RFID chip

I look for hardware developer. Electronics schema and pcb designer.

HL-40296842

Optimización PCB para EL Lights - XIAO ESP32/C3 microcontroler

Quiero que revises y mejores mi circuito basado en un Xiao ESP32-C3 que controla una tira EL de 1,65 m mediante un inversor 3,7 V DC → 100 V AC, un sensor tácti...

HL-40296797

Smart Ring & Wallet Anti-Loss Prototype

I am looking for an engineer or a small engineering team to help build a working prototype of a wearable smart ring that communicates with a thin wallet card de...

HL-40296588

Arduino Multi-Station Timer System

I’m building a small arcade-style attraction made up of six identical stations. Each station will recognise when its hand-held controller is lifted by means of...

HL-40296060

IR Hardware Device; access device firmware & select alternate settings.

I have a commercial IR-band Laser device with essentially two "Modes" - NORMAL and TRAINING, or restricted. Switching between the two can only be accomplished b...

HL-40296107

Layout tweak in KiCad for super simple (3 component) board

I have an existing, very simple KiCad project (1 simple smd component and 2 sets of pads for board mount sma connectors) that is already routed and I need the l...

HL-40295644

Convert traced sketch to precise PCB outline CAD drawing (DXF)

Project Title: Convert traced sketch to precise PCB outline CAD drawing (DXF) Description: I have attached a traced sketch of a PCB outline with component place...

HL-40295690

Design 9×17 Button Matrix PCB

I’m building a USB controller based on an RP2040 and need a robust PCB that carries a 9 × 17 diode-isolated switch matrix—153 momentary buttons in total. Your j...

HL-40295534

Ignition SCADA and PLC Integration

I need an expert to set up Ignition SCADA and integrate it with one Allen-Bradley CompactLogix PLCs for monitoring an existing process. In addition we need a pa...

HL-40295562

Arduino-Based Chemical Dosing PCB Design

Title: Industrial PCB Design for Arduino-based 4-Pump Chemical Dosing System Description: I am looking for a professional PCB designer to create a robust, indu...

HL-40295065

DMX - Led Pixel Board - RDM

We need a board that "translate" signal from DMX to led strip pixel adressable. Need to integrate RGB and RGBW pixel in various protocol, with clock or only dat...

HL-40295025

Altium PCB Design for JLCPCB -- 2

I need a double-layer, signal-processing board laid out in Altium Designer and prepared for fabrication at JLCPCB. The finished board will fit inside a 15 cm ×...

HL-40294572

Compact Handheld Device PCB Design

Hi, I'm looking for an experienced PCB designer to create a custom carrier/breakout PCB for a compact handheld device. No firmware or software needed — design o...

HL-40294385

Denon Amp Thunder Noise Diagnosis

My Denon AVR drives a home theater system, and the moment the amplifier powers up the speakers erupt with a rolling, thunder-like rumble. The noise stops only w...