Electrical Engineering projects — HireLancer archive

ID / Date Listing

ESP32-S3 Schematic Enhancement

I am using the reference design published here: https://www.waveshare.com/product/arduino/boards-kits/esp32-s3/esp32-s3-lcd-7b.htm and now need that schematic—a...

HL-40060793

SMART SMPS with Inbuilt Timer & SPD Protection

We are developing an industrial-grade Smart SMPS with an inbuilt digital timer module and surge protection (SPD) integrated into the PCB design. The freelancer’...

HL-40060358

WF100DP I2C Driver ESP32 code development

I have a WF100DP digital pressure sensor wired to an ESP32 over I²C and I need a clean, well-commented C/C++ sketch that lets me stream live readings to the Ser...

HL-40060360

Custom Xiao RP2350 PCB

I already have a hand-drawn sketch of a board that puts a Seeed Xiao RP2350 module at its heart. What I still need is a complete, production-ready design that t...

HL-40059243

CoDeSys Ladder Recycling Simulator

Quiero una aplicación en CoDeSys V3, desarrollada íntegramente en diagrama Ladder, que simule la operación de una clasificadora automática de residuos. El ciclo...

HL-40060153

Communication Systems I Tutor (Electrical Engineering)

I’m looking for an Electrical Engineering tutor to teach Communication Systems I. Topics include: Signals and Systems, Fourier Transform and filters, analog mod...

HL-40059961

Brain-Stimulating Headband Prototype Design

I’m developing a wearable headband that actively stimulates targeted brain regions to promote overall cognitive balance. The core goal is clear—precise, control...

HL-40059746

Analog Machine Learning Classifier

https://www.mdpi.com/2079-9292/9/3/515 I need to implement the circuit shown in this paper. Preferably in ltspice or simetrix The circuit is a simple analog bas...

HL-40059555

Mechanical Tool Development

I need an experienced engineer to help develop a new range of mechanical tools, specifically cutting tools, power tools, and drill machines. Key requirements in...

HL-40059514

Multilayer SMD Prototype PCB Design

I need a fresh multilayer PCB laid out strictly for surface-mount devices so I can move my current concept from breadboard to a fully testable prototype. The sc...

HL-40059353

Single-Layer PCB Layout for Prototyping

I need a PCB layout and Gerber files for a pcb component design. This is for an LED-related project and is intended for prototyping. Ideal skills and experience...

HL-40059413

Experienced DC-AC Inverter Design Engineer

I need a DC-AC Pure Sine Wave Inverter design for helping me move from concept to production on a truly rugged DC-AC inverter for industrial machinery. The unit...

HL-40058926

Modify Android Phones to Run without Battery

I have a small stockpile of Android handsets that I want running 24/7 for continuous surveillance tasks, but with the batteries completely removed. Your job is...

HL-40058820

On-Site Electrical Board Inspection

On 15 December 2025 I need a professional on the ground in Al-Hidd, Kingdom of Bahrain to inspect a batch of electrical boards just before hand-over. The task h...

HL-40058318

t type cryogen temperature controller

Features & Functional Requirements (Final) Mandatory Core Features Dual independent temperature control channels 2 × T-type thermocouple inputs Temperature oper...

HL-40057799

Smart Switch PCB Design Needed

I need a PCB design and schematic review for a mains-powered smart switch intended for home automation. Key Requirements: - Design for home automation applicati...

HL-40057865

Arduino & ESP32 Board Verification

I already have working schematic and layout files for two open-source inspired products—an Arduino-compatible board in the UNO form factor and an ESP32 DevKit s...

HL-40057146

Finished Compressed Air Report

I have study that I need to be completed for X-Cel Energy's energy rebate program in Minnesota, the data has all been gathered, many of the calculations ran, th...

HL-40057032

SENIOR AI/TWILIO ENGINEER (REAL-TIME CALLS + SMS + WHATSAPP) -- 2

Only apply if you can architect AND build production AI communication systems. Not chatbot integrators. Not juniors. Not “API wrappers.” Killers only. What You...

HL-40056884

Autonomous Hybrid Amphibious ATV Design

I want to take an idea and turn it into a complete engineering package for a fully autonomous, electric-diesel hybrid ATV that can haul 200 kg through swamps an...

HL-40056786

Portable IoT Ventilator Prototype Development

I’m ready to move from concept to hardware on a compact, IoT-enabled ventilator and need an experienced, multidisciplinary team that can deliver a fully working...

HL-40056631

Handwritten Electromagnetic Induction Notes

I need fresh, easy-to-read handwritten notes that cover the entire Class 12 Physics Unit 4 topic, Electromagnetic Induction. Please write them in a natural blen...

HL-40056450

Mid-Level Solar Support Specialist

I want a proactive mid-level technical professional who can keep our European solar portfolio running flawlessly. Day to day you will dig into monitoring data,...

HL-40056380

Design a power module for network board + MCU -- 2

# What is the project about: We are building a cost-optimized, modular Time-Sensitive Networking (TSN) switch based on the Microchip LAN9645xF. We need a Power...

HL-40056141

Altium RS485 Vibration Sensor PCB

I have already outlined the electrical requirements and shared a preliminary parts list: • Full specification: https://www.esocore.com/docs/sensors/vibration-se...

HL-40056180

Embedded firmware task

Very basic functionality; Switch-case logic, inactivity timer and shutdown, wake on falling. 1 DI, 1 AI, LED and PWM

HL-40056068

Experto Diseño Subestaciones Industriales: Freelance

Azcatec, una ingeniería con más de 25 años de experiencia en el sector y un fuerte carácter innovador y proyección internacional, con sede en Sevilla, busca un/...

HL-40056084

Ingeniero experto en diseñp de instrumentacin de plantas industriales quimicas

Azcatec, una ingeniería con más de 25 años de experiencia en el sector y un fuerte carácter innovador y proyección internacional, con sede en Sevilla, busca un/...

HL-40055595

Custom PCB Design Needed

I’m ready to move an electronic concept from sketch to a production-ready printed circuit board and need an experienced PCB designer to handle the full layout p...

HL-40055610

MK Project

I’m moving a ground-up project from concept to construction and I need one coordinated package that covers Architectural, Mechanical and Electrical disciplines....

HL-40055488

Water Purifier Technician: Install & Repair

I need a skilled freelance technician who can handle everything related to domestic and light-commercial water purifiers—from first-time installation to routine...

HL-40055404

Design a power module for network board + MCU

What is the projecmt about: We are building a cost-optimized, modular Time-Sensitive Networking (TSN) switch based on the Microchip LAN9645xF. We need a Power E...

HL-40055000

Handheld Massager Development Consultant

I'm seeking an experienced product development consultant to help transform my concept of a handheld massager into a working prototype. The massager will utiliz...

HL-40054807

KiCad Schematic Review & PCB Layout

I have an existing KiCad schematic for a two–sided STM32-based flight controller (roughly 120 components) that needs a professional once-over before we head to...

HL-40054716

RGBW Beacon Prototype with Wi-Fi Control

I need an experienced hardware designer who can turn my concept for a cylindrical, flashlight-style RGBW 'beacon' into a working, weather-resistant prototype. I...

HL-40054738

Commercial Fire Alarm Design

I need a radio-type fire alarm system designed for a commercial office building. The coverage should include: - Individual Offices - Common Areas - Manufacturin...

HL-40054517

Rediseño Placa de Control Eficiente

Dispongo de una placa de control totalmente operativa—Conversión de 12V a 5V, fusible, Conector 40 pin de raspberry, cuatro relays y un buzzer—pero necesito act...

HL-40054280

ABB RobotStudio Handling Simulation

I need an ABB RobotStudio specialist to build a complete manufacturing-process simulation focused on material handling. The goal is to see the full pick-and-pla...

HL-40054336

On-Site S7-1200 Program Upload Bahadurgarh, Haryana

I have a Siemens S7-1200 already installed in my factory in Bahadurgarh, Haryana. The logic is complete and tested; I simply need a qualified engineer to come t...

HL-40054005

EasyEDA Schematic and PCB Modifications

Project Description: I have an existing EasyEDA project with files for both the schematic and PCB (EasyEDA files and PDFs). The scope of this project involves m...