Electronics projects — HireLancer archive

ID / Date Listing

Arduino Retail Jackpot Button Creation with audio

Build a Battery-Powered Retail “Jackpot Button” (Arduino + Audio) Project Description We are an Australian food brand, looking for an experienced electronics /...

HL-40062572

Packaging PLC & SCADA Integration

I need a complete PLC program and matching SCADA interface for a manufacturing packaging line. The goal is to automate every step of the packaging process, give...

HL-40062502

Industrial GNSS Lock Design Refinement

I already have the first-pass schematic for my GNSS-based digital lock / data-logging system and now need a seasoned set of eyes to push it to true production g...

HL-40062437

Custom Voltage Output Circuit Board

I need a small circuit board that takes two 20VDC hot-swap power inputs and provides multiple voltage outputs. Requirements: - Voltage Outputs: 5VDC, 12VDC, 20V...

HL-40062031

Velocio PLC Control Integration - 13/12/2025 12:43 EST

I need a skilled professional to program a Velocio PLC and develop HMI graphics using vBuilder and vFactory. Additionally, you'll need to establish a Bluetooth/...

HL-40061825

Feature Phone Screen & Battery Fix

My feature phone needs hands-on attention: the display is cracked and the battery now drains far too fast. The job covers sourcing or advising on genuine replac...

HL-40061570

Phone Hardware Repair Expert Needed - 13/12/2025 08:39 EST

I need an experienced technician to sort out three hardware problems on my smartphone: • Replace the cracked screen with an OEM-quality display • Swap the worn-...

HL-40061365

Phone Hardware Repair Expert Needed

I need an experienced technician to sort out three hardware problems on my smartphone: • Replace the cracked screen with an OEM-quality display • Swap the worn-...

HL-40061413

Neurostimulation Device Prototype Development

I have a concept for a handheld medical device that administers treatment through targeted neurostimulation, and I now need to turn it into a functional prototy...

HL-40061414

Communication Systems I Tutor Needed

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-40061056

SSL Duality Main Section Schematic

I am piecing together a stripped-down console for studio recording and only need the heart of the desk: the master section of an SSL Duality (or a very close eq...

HL-40060770

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-40060701

ESP32 Pulse-Triggered LED Indicator

I have an Epson TM-T82IIIL (link below) whose cash-drawer kick-out port sends a short 24 V pulse whenever the drawer opens: https://www.netnest.com.au/pos-hardw...

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-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-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-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-40058188

GeM Electronics Listing Support

I operate an electronics and electrical trading outfit in India and I am ready to take my catalogue to the Government e-Marketplace (GeM). What I need now is ha...

HL-40058242

Verilog Code for 1-Wire Secure EEPROM Interface with Zynq Zed Board

I am looking for an experienced FPGA developer to write functional Verilog code for interfacing a 1-wire secure EEPROM with a Zynq Zed Board. The EEPROM include...

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-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-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-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-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...