Embedded Systems projects — HireLancer archive

ID / Date Listing

12V Embedded Controller PCB Design

I’m building a compact embedded platform that runs from a single 12 V supply and I need a purpose-built PCB to act as the system’s brain. The board has to host...

HL-40364075

ESP32-C6 Solar IoT PCB Design

I need a production-ready circuit and compact PCB built around the ESP32-C6 for an IoT device that must run efficiently on both a small solar panel and a rechar...

HL-40364138

Inverter Bus Voltage Feedback Circuit Design for PWM SG3525 &LM358

I need a clear, ready-to-build circuit diagram that closes the voltage feedback loop on the DC bus of an off-grid inverter running in the 12 V – 24 V range. The...

HL-40363781

Implement Roulette (sdk)

Kiosk Software – Simple Roulette + QR Code Generation (SDK Integration) Description: I have a vending machine with a touchscreen and a working SDK provided by t...

HL-40363877

LM5170 EVM Buck Debug Help

My Texas Instruments LM5170EVM-BIDIR board refuses to deliver any output voltage when I switch it to buck mode. Boost mode also does not run, so I’m convinced t...

HL-40363705

ESP32 Toy Drone Design

I want to bring a small, ESP32-powered toy drone from concept to first lift-off. The goal is purely recreational: a fun flyer that can be controlled from a smar...

HL-40363735

Fix Drone Flight Stability Bugs -- 2

My drone’s flight control software is showing serious stability problems—unexpected pitch and roll changes that make the aircraft drift even in calm conditions....

HL-40363391

KiCad ESP32 Two-Layer PCB Gerbers

I already have a complete circuit schematic for an ESP32-based board and now need it translated into production-ready, two-layer Gerber files. Please work exclu...

HL-40363125

Offline Raspberry Pi 4 Crypto Wallet

I want a bootable .img image for the Raspberry Pi 4 that turns the board into a fully offline, hardware-style wallet. After flashing the image to an SD card and...

HL-40363155

ExpressPCB+ to Fusion360 PCB Migration

I have a completed audiophile phono-preamp in ExpressPCB+ — schematic and two-layer board — that I now need recreated in Fusion 360 Electronics. The circuit hol...

HL-40363088

Stand-Alone Pi Crypto Miner

I need a single .img file that I can flash straight to a micro-SD, slot into a Raspberry Pi 4, power on, and start mining—no extra setup, no internet account cr...

HL-40363101

Solar Inverter Control Design

i am looking for an engineer in power electronic whos has some experience with F280039c or stm32g474 or esp32 to make a spwm for full h bridge inverter ( pedago...

HL-40362087

200 kHz OOK RF Link Design - PRICE will very as per Deliverables can be from your side.

I need a matched transmitter-receiver pair built around a 200 kHz carrier that can cover at least 40 m in open air and recognise simple OOK (On-Off Keying) puls...

HL-40362010

Color-Changing Fan Light Show Design -- 2

I need a compact, self-contained light show for a fan that will be used purely for entertainment. The blades already have addressable LEDs installed; what’s mis...

HL-40361273

Industrial IoT PCB Design: Schematic Review, ESP32 Update, Engineering Optimization & Full EasyEDA Layout

I am looking for a skilled electronics/PCB design freelancer for an industrial IoT device. This is not just a simple PCB layout job. The work includes schematic...

HL-40361296

Modbus to USB Adapter Integration - 10/04/2026 01:10 EDT

I need an interface connector for carrying sensor readings from Ultrasonic datalogger by Modbus cable RS-485 with a male connector. The PCB interface is to be b...

HL-40360646

Analyze PoE Injector Board

I have a working PoE injector board in hand and need a clear, engineer-level breakdown of how it does what it does. Your analysis should cover three areas: • Po...

HL-40360391

"Digital Fossil" – Ultra-Reliable 128GB Automotive-Grade Archival Storage

Project Overview: I am looking for an expert Embedded Systems Engineer to design and build a single, high-reliability storage device meant to last 50 years with...

HL-40360305

Quadruped Power PCB Design

I need a compact, reliable PCB that will serve as the power and control backbone for my quadruped robot. The board has to integrate three key blocks: a microcon...

HL-40360333

Solar Inverter Firmware STM32 TMS320

I am building a grid-tied solar inverter and need a seasoned embedded designer to deliver complete, production-ready firmware for both an STM32F103 and a TMS320...

HL-40360256

4K Image Displayed on a Raspberry Pi 4

I need a 4K image displayed on a Raspberry Pi 4 in portrait orientation. The content will be purely graphical. I want the board to go from power down to display...

HL-40359693

Pond Ionizer Circuit Board Development

I need a compact circuit board designed to function like a pond ionizer, primarily to control algae growth. Requirements: - Input: 24V AC or DC - Output: 12V DC...

HL-40358873

IoT Embedded Control Device Assembly (only South Africa)

We have developed an IoT device built around an embedded computer and sensor system, designed to control and monitor environmental conditions within a room. The...

HL-40358682

BLDC Motor Controller with FOC

I need a microcontroller-based motor controller for a BLDC motor using Field-Oriented Control (FOC). The system should incorporate encoders as sensors. Key requ...

HL-40358372

Arduino Shooting Target System

I'm looking for an experienced Arduino programmer to create a microcontroller-based shooting target system. The system will feature 20 targets spread over a wal...

HL-40358356

Electronics Firmware Creation

PROJECT DESCRIPTION Package E – Embedded Firmware Development Project: Box Capsule 1. PROJECT OVERVIEW Box Capsule is a vehicle-mounted hardware device designed...

HL-40356827

Compact PCB for AutoSmear Device

I already have an ESP32-C3 prototype of AutoSmear running reliably on a hand-wired board, but now it is time to turn that lab-bench tangle into a production-rea...

HL-40357768

Science Fair Iron Repulsion Electromagnet

I need a compact, student-friendly iron-repulsion electromagnet that can serve as the centerpiece of a science-fair exhibit. The core requirement is a coil syst...

HL-40357279

Program DWIN DGUS Touchscreen Navigation

I have a DWIN display that needs to be configured in DGUS so the end-user is greeted by a clean, single-level menu and can move through it with straightforward...

HL-40357153

ESP32 Home Meter Integration with MATTER

MATTER INTERFACE FOR A HOME METER WITH ESP32 mandatory experience with MATTER and ESP32 We already have a device that acquires the measurements of a home's elec...

HL-40356988

Industrial STM32 4-Layer PCB

PCB Design – STM32 I need an experienced PCB designer to create a 4-layer industrial PCB Requirements: * MCU: STM32 * 4G Module: SIM7600G (GPS + LTE) * Power: 1...

HL-40356897

need a BOM

Now I need a BOM with part number, gfci and transformer details. Microcontroller code firmware...

HL-40356281

Embedded Linux Driver Developer

I'm seeking an experienced embedded software developer to create drivers for an ARM-based board running Embedded Linux. Requirements: - Expertise in driver deve...

HL-40356342

Outdoor Towing Robot Development

I need a robot designed to tow agricultural tools in an outdoor environment. The equipment will weigh less than 50 kg. Key requirements: - Ability to navigate v...

HL-40356189

OSDCloud & PowerShell Expert for Autopilot Enrollment Setup

I need an experienced professional to configure OSDCloud for automatic Windows Autopilot enrollment. The project involves setting up a system that will automati...

HL-40355830

Firmware for LED Anti-Cant Level -- 2

I have a finished PCB for a compact, battery-powered anti-cant device — an electronic replacement for the traditional bubble level. The board is built around an...

HL-40355723

Diseño PCB 15x15 cm ESP32

Necesito un diseñador electrónico que me ayude a pasar de idea a archivo Gerber una placa de 15 × 15 cm lista para fabricar en JLCPCB. Componentes que debo inte...

HL-40355623

Trailer Door IoT Alert Prototype

I’m looking to turn my concept for a trailer-door security device into a fully working prototype. After a recent theft attempt, I need the system to be rock-sol...

HL-40355525

Proximity-Activated LED Lighting Install

I’m outfitting my scale model airplane with an LED lighting system that switches on automatically whenever someone (or another object) comes close to the aircra...

HL-40355477

Solar Cooker PCB-Firmware Design -- 2

Custom PCB Design & Firmware for Solar Cooker Energy Monitor Description: We need a single-board PCB design with firmware to replace our current multi-device pr...