Electronics projects — HireLancer archive

ID / Date Listing

ARM Assembly Code Debugging

I'm seeking an experienced microprocessor software engineer to debug assembly language code for an ATMEGA 128L 8U-TW processor. Key Requirements: - Expertise in...

HL-40226219

Earin M-2 Earbuds: Upgrade and Miniaturization

Custom TWS Earbuds Prototype - Earin M-2 Miniaturization** UNIVERSITY PROJECT: Redesign Earin M-2 earbuds SMALLER to reduce ear protrusion. CURRENT SPECS: 24×15...

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Handheld Device Hardware Prototype

I am developing a compact handheld consumer device prototype that requires integration of a rechargeable battery and small electronic module inside a custom 3D...

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Reengenharia de Placa Eletrônica

Projeto: Engenharia Reversa de Placa Eletrônica Legada Descrição do Projeto Busco profissional com experiência comprovada em eletrônica para realizar engenharia...

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Automotive braking system board improvement (Version 2)

After successfully finalizing our first version of our automotive braking system board, we would now like to improve the design to make it modular, safe, reliab...

HL-40225589

USB-Gamecontroller Umbau: Originaler Straßenbahn-Fahrhebel

Ich besitze einen originalen Fahr-/Bremshebel aus einer Bremer Niederflurstraßenbahn Typ GT8N. Dieser Hebel soll nicht als Sammlerstück, sondern als voll funkti...

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ESP32 Firmware and Efficient Power Switching Circuit

I've already built some prototypes of a circuit capable of switching a single 230 V, 16–30 A line to 4, 8, or 12 outputs—without power loss—but none of them hav...

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Explain ESP-PIC UART I2C and complete Circuit

I already have the full schematic and the finished PCB files for a board that combines an ESP module with a PIC18F microcontroller. What I’m missing is a clear,...

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Microstrip Antenna Design Research Partnership

I’m kicking off a multi-phase R&D effort devoted to the design and development of cutting-edge microstrip antennas. The overarching targets are straightforward:...

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Raspberry Pi Pico GPS Clock

I need a GPS clock built using a Raspberry Pi Pico and a 7-segment display. The GPS module will be the ATGM332D. Key Requirements: - Utilize Raspberry Pi Pico a...

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Antenna Researcher Needed for Long Term Commitment Only Indian

I need a focused research effort that looks at satellite-communication antennas from three angles at once: maximising signal strength and quality, mapping frequ...

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Circuito Potenza 230V Multiuscita

Ho già costruito alcuni prototipi di un circuito in grado di commutare un’unica linea da 230 V, 16–30 A, verso 4, 8 o 12 uscite; --senza perdita di potenza--, n...

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Single-Speed Pool Pump Installation

I’m replacing my existing pool circulation unit with a single-speed pump that I already have on site, along with all the fittings, unions, and electrical hardwa...

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AI-Driven IoT Irrigation Control

I’m building a smart irrigation setup that links a Raspberry Pi edge server with several ESP32 nodes in the field. Each ESP32 gathers data from soil-moisture pr...

HL-40223047

Complete Cabled Weather Station Setup

Hello , I have a cabled weather station ready to go, but I need an experienced hand with the physical installation side only. The job covers everything from mou...

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GC with TCD/FID for Hydrocarbons

I am putting together a self-funded, individual project that calls for a fully specified gas-chromatography system fitted with both a Thermal Conductivity Detec...

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WiFi Kids Phone Plastic Enclosure Design

I need a plastic enclosure designed for a screen-free WiFi kids phone. The design should be injection moulding ready and include internal layouts for PCB, speak...

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Industrial Flex PCB With Sensors

I need a compact, reliable flex-PCB designed for an industrial setting that is subject to continuous high-vibration, ambient temp extremes, and moisture. The bo...

HL-40223156

Arduino Code for RGB LED Trigger

I'm looking for an Arduino code that will trigger RGB LEDs to change color based on a pulse rotary dial input. Requirements: - Use of a pulse rotary dial - RGB...

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Shapr3D Enclosure Assembly Visualization

I’m putting together a compact two–tier electronic enclosure and I need the complete assembly modelled in Shapr3D so I can open, review, and tweak the layout my...

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Ultrasonic Scent Diffuser Design

I'm seeking an experienced product designer to develop an ultrasonic scent diffuser. Key Features: - Timer settings - LED lighting - Mist intensity control Idea...

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Medical Vital-Signs PCB Design

I’m developing a compact medical-grade board that will sit at the heart of a new vital-signs monitor. The PCB must reliably acquire and process heart rate, bloo...

HL-40222519

Altium PCB Simulation Specialist

I’ve drafted a single-layer board in Altium Designer and now need a seasoned set of eyes to run thorough simulations before I commit to building the first proto...

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Analog Signal Processing PCB Design

I need a compact PCB developed for a one-off project that focuses purely on analog signal processing. The core task is to turn my hand-drawn schematic into a pr...

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SCX Digital Car PCB

The task is to design a compact PCB that drops straight into an SCX 1/32 car so it can run on a digital track. I want the board to read the track’s reed-sensor...

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PCB Gerber File Creation from Schematic

I need a PCB design from a Schematic I'll provide. a small board, around 170 pins for a guitar pedal. I have a model PCB from another vendor, and the EasyEDA sc...

HL-40221829

Consumer Electronics Wireless Circuit Design

I need a compact, production-ready circuit that brings reliable wireless communication to a new consumer-electronics device. The work begins with schematic capt...

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EV Charger Electrical Plan

I need a detailed electrical plan for installing an EV charger in the garage of a new residential home, as required by council regulations. The home has a three...

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Raspberry Pi Solenoid Trigger Script

I need a concise Python 3 script that will run on a Raspberry Pi 5 and do the following: • Watch a single GPIO input line for the HIGH digital signal coming fro...

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C++ Embedded STM32 Developer

I’m updating the firmware for an STM32-based design and need an experienced C++ developer who is comfortable inside STM32CubeIDE. The codebase already compiles...

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Zigbee Green Power Lighting Control

I need a Zigbee Green Power device for indoor lighting control. The primary features required are on/off switching and dimming. Key requirements: - Zigbee Green...

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STM32, Nucleo F767ZI based graphical user interface on TFT LCD ST7789 2" and Raspberry Pi-4 5" touchscreen

The embedded system comprises 2 STM32 boards connected to their own 7 sensors, 1 motor, and 3 relays. Each is connected to a central Raspberry Pi 4 board. The R...

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Senior Industrial Controls Engineer Needed

I’m kicking off a series of manufacturing-plant automation upgrades and I need a seasoned controls engineer who can run each project from the first I/O list thr...

HL-40221004

Interactive Plush Toy Prototype Development

Project: ESP32-Based Talking Plush Toy – Prototype Development Project Overview I’m building a screen-free talking plush toy for kids (3–7 years). The goal is t...

HL-40221018

Linak LA36 Actuator Calibration

I need help recalibrating a Linak linear actuator LA36. The actuator is experiencing inconsistent movement during both extension and retraction. I’ve already ch...

HL-40221072

Outdoor Real-Time Bluetooth Tracker Design

I’m building a brand-new tracker aimed at hunters and other outdoor enthusiasts who need to see the location of their harvested game is in real time. The core r...

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Ebike Throttle Limiter Circuit Check

I need an ebike throttle limiter that sits between the ebike throttle ( running 5v red, black (gnd) and white control wire and its controller : (DO NOT CUT thes...

HL-40220163

PCB designer for a simple LED board

I'm looking for somebody who can fix my pcb, all it has are leds on top

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AI-Driven IoT Irrigation Control

I’m building a smart irrigation setup that links a Raspberry Pi edge server with several ESP32 nodes in the field. Each ESP32 gathers data from soil-moisture pr...

HL-40219238

Bluetooth HAM Radio Audio Bridge

I want to build a compact, two-way Bluetooth audio interface for a HAM radio. The core goal is a 2-way bridge between the radio and a realtime camera running on...