Electronics projects — HireLancer archive

ID / Date Listing

12V Sailboat Circuit Design

I need a clear, reliable 12-volt circuit worked out for my small sailing boat. The system consists of a Lifepo4 house bank of 2x150ah to be wired in parallel, a...

HL-40517601

MATLAB-Simulink Electrical Power Mitigation Project

I need help with a MATLAB/Simulink electrical power system project related to voltage sag mitigation in a distribution network using UPFC. The main objective is...

HL-40517385

Bus Toilet PCB Design

I need a PCB designed for a bus toilet system. The PCB should control the following functions: - Lighting - Flush system - Ventilation - LED lights for error in...

HL-40516883

J1939 CAN Edge hardware and Firmware Development

I have a CAN-based hardware concept for trucks and excavators that still needs an expert eye and solid firmware. The board carries a CAN transceiver plus an as-...

HL-40516899

Concepteur de Machine à Boisson Automatique

Je cherche un ingénieur en mécanique et en électronique pour concevoir une machine à boisson automatique destinée aux cafés et restaurants. La machine doit être...

HL-40516787

ESP32 Smart-Pen Firmware & CAD

I’m advancing a connected-pen prototype built around an ESP32, a compact LCD, and a 9-axis IMU. My rough Arduino-IDE sketch runs, but it needs clean, documented...

HL-40516445

Layout PCB para Prototipagem

Já concluí o esquema elétrico do meu circuito – o foco é um microcontrolador que governa todo o design – e agora preciso transformar esse diagrama em um layout...

HL-40516247

±3 V 80 kHz Line Driver

I have a Teensy 4.1 producing a 0–3.3 V, 80 kHz square wave that must be pushed onto a power line as a clean ±3 V logic-level signal. The link sits inside an in...

HL-40516125

(DVP-14SS2 PLC) & (Baykon BX11 weighing indicator) via RS-485 Communication

**Looking for an Industrial Automation Expert (DVP-14SS2 PLC & Baykon BX11 via RS-485 Communication)** I am looking for an experienced industrial automation eng...

HL-40516149

Modul WiFi 500m UDP

Am nevoie de un design complet pentru un modul WiFi capabil să trimită date UDP pe o distanță de aproximativ 500 m în câmp deschis, în special deasupra apei. Nu...

HL-40515973

Cooling/Heating System Prototype

I need an electrical engineer to build a working prototype for a cooling and heating system. The prototype requires microcontrollers and sensors. Ideal Skills a...

HL-40515441

Silver Conductive Paste R&D

I’m developing a next-generation silver conductive paste for solar cell metallization and advanced electronics, and I need a material scientist who lives and br...

HL-40514887

Control System Double-Layer PCB

I need a purpose-built PCB for an APAS control system that will ultimately drive a small embedded platform. The board must be laid out on two copper layers and...

HL-40514678

Simple Reed Switch PCB Gerbers

The job is to turn a very small, single-sided board—35 mm × 23 mm, 1.5 mm thick—into a full Gerber package ready for fabrication. The layout is straightforward:...

HL-40514332

Foot Massager MVP Prototype

I already have a complete STEP-format CAD model of my foot massage device and have sourced the key parts I’d like to use inside it. What I still need is a skill...

HL-40514151

Custom RISC-V IC Development

I need a custom RISC-V integrated circuit designed specifically for embedded systems with essential inbuilt security features. Key Requirements: - Designed for...

HL-40513500

Custom Development

Key deliverables • Block-level architecture with component selection • Schematic and PCB layout files (Altium) • Test plan plus measured results.

HL-40513437

FreeCAD Automotive PCB Enclosure

I have an automotive-grade PCB ready and need a complete enclosure designed in FreeCAD. The enclosure must be easy to manufacture, simple to assemble, cost-effe...

HL-40513443

UAV GPS PCB Design Verification

I have completed the schematic and multilayer PCB layout for a custom GNSS / GPS module that will sit inside a small-form-factor UAV. Before I press the “order”...

HL-40513127

STM32H743 Meter Schematic Update

I already have a complete schematic for a multi-function meter built around the STM32H743BIT6. Before I move to PCB layout I need a fresh set of eyes to refine...

HL-40513054

Three-Axis Joystick Schematic

I need a schematic completed in EasyEDA for a small PCB that will trigger three illuminated or non illuminated switches. Each switch is to plug in to a JST plug...

HL-40512642

CNC Quotation Software Development

I need a specialized quotation software for CNC metal plate cutting. The primary function of this software is cost estimation. Essential Parameters for Cost Est...

HL-40512617

ESP32 BACnet HVAC Monitoring

I’m looking for help turning an ESP32 into a BACnet-enabled sensor node dedicated to data acquisition and monitoring. The board must join an existing BACnet net...

HL-40512200

Theatre Lighting Circuit Extension

I need an experienced, licensed electrician to design the extension of more than 5 hot circuits for LED stage fixtures in a small theatre in Los Alamos, NM. Req...

HL-40512212

TAP Ring Prototype - Wireless Charger & Firmware Development

Product: TAP Ring (Threat Alert Protection) — wearable safety ring Deliverable: 3-5 working bench prototypes TAP Ring — Flex PCB Bring-Up: Wireless Charger, Bat...

HL-40511842

Dual-Output Audio Processor Design, Guitar/modular CV efx unit.

I'm seeking an experienced audio engineer to design a dual-output audio processor with two voltage-controlled frequency boundaries. This device will split an in...

HL-40511720

IoT PCB Design for Smart Scooter

I'm working under Ramen Electric Pvt. Ltd., and I’m building a smart electric scooter project. I already have the mobile app UI and backend ready, but now I nee...

HL-40511549

Solar Grid Tie Inverter Prototype Development

I'm seeking an experienced professional to help develop the hardware for a solar grid tie inverter. Key areas of assistance needed: - Power Electronics - Contro...

HL-40511317

BAYANI: Educational Children's Audio Box Firmware

# ESP32 NFC Audio Player Firmware Development (Children's Audio Box) ## Project Overview We are developing BAYANI, a screen-free educational audio box for child...

HL-40511254

Design Advanced Humanoid Robot Hardware & Software Suite

I am building a full-scale humanoid platform and need an engineer who can take the lead on the hardware stack while collaborating closely on the supporting firm...

HL-40511161

Arduino Maturation Fridge Controller Code

Quiero llevar mi nevera de maduración al siguiente nivel con un controlador Arduino que mida y gestione tres variables críticas: temperatura, humedad y concentr...

HL-40509937

Assemble Wearable Night-Vision Prototype

I already have every component on hand—Raspberry Pi Zero 2 W, CSI night-vision camera, driver boards, batteries, flex cables—and a complete engineering pack tha...

HL-40509987

Universal EVSE Controller PCB Design

Universal EVSE Controller PCB – Freelancer Requirement Design a universal ESP32-based EVSE controller PCB for AC EV chargers. Same PCB must support 3.3 kW, 7.4...

HL-40509713

New Build Final Walk-Through Inspection

My newly constructed home has reached the final walk-through stage, and before I sign off with the builder I want an independent, professional eye on every crit...

HL-40509217

Electrical Engineer for Switchboard Compliance

Freelance Electrical Engineer / Switchboard Compliance Specialist Required Project: AS/NZS 61439 Compliance Assistance for Commercial Swimming Pool Control Pane...

HL-40509047

Double-Layer PCB Diagnosis & Repair

I have several double-layer printed circuit board that has stopped performing reliably. Several symptoms point to multiple underlying faults: a few components n...

HL-40508098

PCB Design for ESP32-Based Industrial Climate Controller

We are seeking an experienced PCB designer to create a two-board system in KiCad for an ESP32-based industrial climate controller. The project involves: 1. A lo...

HL-40508514

Residential Smoke Alarm Firmware Upgrade

I have a batch of battery powered residential smoke alarms still in their boxes that need to be carefully unpacked, plugged into an 8 pin cable that is connecte...

HL-40508540

Install RP2040 Picofly Mod

I have a Tears of the Kingdom-edition Nintendo Switch OLED that I’d like professionally modded with an RP2040 Picofly. The console is still fully assembled, so...

HL-40508318

Face Recognition Attendance Terminal Design

I'm seeking an experienced hardware designer to create and manufacture a face recognition-based attendance terminal. The system should be built on the i.MX 8M P...