Circuit Design projects — HireLancer archive

ID / Date Listing

IR Sensor Specialist for Outdoor Motion Detection

Infrared (IR) Sensor Engineer – Outdoor Motion Detection & Prototype Design (ESP32 / Arduino) Job Description We’re looking for an experienced Infrared (IR) and...

HL-39910905

Power Electronics Prototype Engineer Needed

We are seeking an experienced electrical engineer to join our team for a short-term project focused on developing next-generation hardware at a major startup. T...

HL-39909350

Electrical Engineer (SSE Software Specialist)

A highly skilled and detail-oriented Electrical Engineer with expertise in utilizing SEE Electrical software for designing and managing electrical schematics. P...

HL-39909149

Battery-Powered BLE Puck PCB Design

## Project Summary Battery‑powered BLE puck (∅40 mm) using Raytac MDBT50Q‑1MV2 (nRF52840), Bosch BME688 and TI TMP117 on shared I²C with supporting passive comp...

HL-39909025

High-Speed PCB Design (Xilinx Zynq UltraScale+ SoC)

Summary Project Overview Developing a custom high-speed board based on the Xilinx Zynq UltraScale+ SoC (XCZU19EG), integrating QSFP+, FMC+, Ethernet, USB, and D...

HL-39908887

433 MHz RF LED Controller

I need a simple RF-based controller that can reliably switch an LED strip on and off from more than 20 m away. The remote must operate at 433 MHz; Scope • Provi...

HL-39908660

Ride-On Car PCB Design

I have a children’s ride-on car that needs a single, compact PCB capable of handling everything the toy does—driving the motor, pulsing the lights, and playing...

HL-39907948

FPGA-Controlled Precision Current Source Project

I need a complete design for a constant-current driver that can source or sink programmable currents through five pairs of output pins, all of which must be abl...

HL-39907646

Dimmer 24 V 6 kW Preciso

Tengo diez focos de 600 W alimentados a 24 V que deben atenuarse todos al unísono. Para la primera fase necesito un dimmer manual con botón rotatorio capaz de c...

HL-39907502

Need ESP32-S3 Programmer for Prototype

Looking for someone to program an ESP32-S3 microcontroller for a prototype project. All hardware components are ready — you’ll only need to handle the firmware...

HL-39907307

Qi Wireless Power Transmitter Design

Design a Qi 1.3 wireless charger transmitter (and optionally receiver) that is production-ready, fully compliant with Qi 1.3 standards, and suitable for certifi...

HL-39906333

Raspberry Pi CAN HAT & Enclosure

I’m looking for a hardware designer who can deliver a complete, ready-to-manufacture solution that lets a Raspberry Pi Zero W talk to three independent, galvani...

HL-39905990

Passenger Car Control PCB Design

I am seeking an experienced PCB designer to create a new design for an automotive control application. The PCB must incorporate the following components: Atmega...

HL-39905558

H-Bridge Inverter Design Support

Looking for someone that knows a lot about H bridge for inverter on a design am working with to increase rating of this design to 10kva. Must understand mosfets...

HL-39903528

IR Laser Triggered Circuit

I need a breadboard setup that can receive an IR laser and trigger an electronic match inside a smoke pyro. Requirements: - IR laser receiver - Circuit to activ...

HL-39903370

Arduino Dual Actuator Control

I have two 12 V linear actuators that need to be driven from a single Arduino. • Actuator 1 must travel forward and backward around a fixed center point; when i...

HL-39901730

Concept Accessoire Électronique Innovant

Je souhaite transformer mon idée d’accessoire électronique grand public en un produit concret que je pourrai ensuite faire fabriquer et vendre. J’en suis aux to...

HL-39901453

Interleaved Buck Converter Design & Simulation

This project requires the design and simulation of a 2-leg interleaved buck converter, followed by the creation of its corresponding PCB layout. The primary goa...

HL-39900370

Cost-Optimized Integrated PCB Redesign

I already have the circuit working on a hand-wired board that combines an Arduino Nano, ULN2003-driven 28BYJ-48 stepper, RTC, I²C OLED, and two rotary encoders...

HL-39899959

Gerber Generation From DXF Files

I already have complete schematics and detailed DXF drawings for two very small boards and now need clean, fabrication-ready Gerber packages. Board #1 – DS1820...

HL-39899934

Arduino Machine Control System

I need someone to turn a bare-bones Arduino setup into a reliable machine-control solution. The exact board is still open—Uno, Mega, or even a Nano could work—s...

HL-39898669

Ingeniero/a Electrónico para Cerradura de Seguridad (Fase Final de Producto)

Oferta de Colaboración: Ingeniero/a Electrónico para Cerradura de Seguridad (Fase Final de Producto) Buscamos un Ingeniero/a Electrónico/a freelance y con exper...

HL-39898506

Substation Automation Power Distribution Design

I’m seeking an engineer who knows Schneider SEE Electrical and understands substation automation workflows. My immediate need is a concise power-distribution de...

HL-39898549

Reduce Transistor Amplifier Gain

My transistor-based input stage is far hotter than I need. It drives 35 tape heads wired in series inside a Mellotron, so any hiss or overload quickly snowballs...

HL-39897105

Multi-Layer PCB for Electronics

I am currently working on improving an already existing open-source project for personal use. It is an electromagnetic resonance drawing tablet implementation s...

HL-39896806

DIN-Rail Vegaflex81 Wiring Schematic

I’m replacing an existing probe with a new Vegaflex 81 (4-wire: 2 × power, 2 × data) and need a fresh, installation-ready drawing for the DIN-rail board that ho...

HL-39895855

Weekly KiCad Mentoring Help

I’m a hobbyist juggling a few small electronic ideas and I’d like a patient KiCad expert to coach me for about an hour each week. My immediate challenges are sc...

HL-39895346

Indoor Farm Watering Automation

I have created a base arduino cloud code that works - im looking for someone that can review it and make it as bullet proof as possible + offer their expertise...

HL-39895173

Custom TOF Sensor PCB Design

I need a straightforward, custom-made PCB that hosts a single Time-of-Flight (ToF) sensor for accurate distance measurement in a small prototype. The board only...

HL-39894533

Wastewater EM Flow Meter Hardware

I need the complete electronics hardware with softwarefor a compact electromagnetic flow-meter dedicated to wastewater lines in a water-management setting. The...

HL-39893940

Basic QRNG Electrical Schematic

I’m building a Quantum Random Number Generator (QRNG) that will sit inside an industrial setup and need a clear, entry-level electrical schematic to guide the n...

HL-39893825

Sliding Gate Controller PCB Design Review

Need an experienced electronics engineer to review my 12VDC sliding-gate motor controller PCB before I fab it. Built around DRV8701ERGER H-bridge, BSC014N04LS F...

HL-39892443

módulo sensor del sistema monitore de rack

Buscamos un ingeniero electrónico con experiencia en diseño de hardware industrial para desarrollar el módulo sensor del sistema Smart-Rack, un dispositivo que...

HL-39892153

Desenvolvimento de Placa DMX Arduino

Quero criar uma placa DMX controlada por Arduino / ESP32. A ideia é ter um hardware compacto que converse via protocolo DMX-512, faça integração com sensores e...

HL-39890281

Campground Wiring Installation

I need new electrical wiring installed at camping sites in our campground. The work involves installing electrical outlets. New run from transformer to meter po...

HL-39889876

Smart Furnace Control Card Design

I'm looking for an experienced electronic designer to create a control card for our furnaces. The card must be controllable via both Bluetooth and WiFi. Key req...

HL-39888241

Design and develop signal monitoring board with ESP32-WROOM-32UE

The PCB board needs to cover followed specifications: 1. Main board supply DC-DC Step-Down 8-36V to 3.3V (TPS54560 or suitable) 2. Four analog inputs to measure...

HL-39888160

Custom CCTV SMPS PCB Design

I need a reliable PCB layout for a CCTV power-supply module that converts 230 VAC mains to a regulated 12 V DC at 5 A. I already have a rough schematic and key...

HL-39884038

Micro SD-to-SD PCB Design

I need a straightforward PCB that converts a micro SD card to a full-size SD footprint for quick prototyping work. I already sketched the layout; use that as yo...

HL-39884042

Diverter PCB Review & Redesign

I have already drafted the PCB for a combined first-flush and full-tank diverter, but it is only at the “first pass” stage. Before I commit to fabrication, I wa...