Wearable Bluetooth LE with AI Voice Integration PCB Design
I’m developing a new wearable gadget that relies on Bluetooth LE connectivity and on-device AI voice commands. I need a seasoned PCB engineer who can take the c...
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Precision Motor-Based Medical Device Development - 23/03/2026 06:40 EDT
Job Requirement – Precision Motor-Based Medical Device Development We are seeking a freelancer or product development expert to help bring a medical-related dev...
Read moreTécnico salvaescaleras autónomo en España
Formo parte de una empresa especializada en la instalación y reparación de sillas salvaescaleras y plataformas elevadoras. Busco profesionales autónomos que qui...
Read moreMechatronics/Robotics Freelancer Needed – Prototype Development for AI-Powered Automated Cooking Machine (Hardware + Firmware)
We are an early-stage hardware startup developing an AI-powered automated home cooking machine. The device prepares meals from scratch using a robotic arm, auto...
Read moreArduino Fragrance Dispenser Prototype
I need a rough-and-ready fragrance dispenser that lets me showcase three separate scents from one compact unit (about 30 × 20 × 15 cm, but feel free to tweak di...
Read moreRefinement and Construction of Sound Circuit Board
Design and build a circuit board to make machine gun sound by pushing a button. I have the basic design but it needs to be refined and then built. I am looking...
Read moreElectrical Layout Excel Spreadsheet
I need an Excel spreadsheet to track electrical circuits. The spreadsheet should include: - Circuit Number (in numeric format) - Amperage - Reading Number - Des...
Read moreESP32-S3 High-Frequency Tachometer
Help me solve something multiple freelancers havent been able to. I need a rock solid circuit that reads a pulse from a wire wrapped around a spark plug wire of...
Read moreInstall Jeep Liberty Stereo & Camera
I’m ready to upgrade my 2010 Jeep Liberty with a Pioneer DMH-1500NEX double-DIN head unit and a license-plate-frame backup camera. The previous aftermarket ster...
Read moreGSM-Controlled Residential Gas Safety System
Request for Quote – Residential Gas Safety Device GSM-Only (SMS + Voice Calls) + Auto 220V Fan – No App, No WiFi Hi, I’m looking for a skilled embedded engineer...
Read moreESP32-Based Smart Gas Safety System Development
Project Title: Smart Gas Safety Device – ESP32 + Multi-Gas Detection + Auto Ventilation (180-250V AC) + GSM Alerts + Mobile App (Production Ready) Project Descr...
Read moreEquine sensor for horses
I am currently looking for a manufacturing partner to develop a girth-mounted equine performance sensor as part of a product The goal of this device is to monit...
Read more28 GHz RF downconverter with IF 5-6Ghz
I have a working schematic for a double-balanced Gilbert mixer aimed at 28 GHz in a 65 / 60 nm CMOS flow on Cadence Virtuoso (ADE L/XL). The core blocks—RF matc...
Read moreSmart Gas Safety System Development
I need a full-scale, production-ready smart gas safety system that I can install in residential spaces yet trust at an industrial-grade level. The core requirem...
Read moreESP32-Based Router Board PCB Design
I need an experienced PCB designer to convert my fully working and tested hardware prototype into a final production-ready single board PCB. Complete handoff do...
Read moreBangladesh BSTI Certification Survey
I need concise, well-sourced answers on whether specific industrial electronics—UPS (HS 850440), Digital Multimeter (HS 903033), Analyzer (HS 902780), Battery P...
Read more4G Communication Smartwatch Hardware Design
I want to bring a new smartwatch to life whose core job is keeping users connected. The watch must handle 4G LTE data, Wi-Fi and Bluetooth without compromise, t...
Read moreSTM32 SPI Firmware Development
I have a custom board built around an STMicroelectronics MCU and I need a clean, well-structured C firmware that turns the chip into an I2CSPI host. The main jo...
Read moreTCD1304 CCD Sensor FPGA
TCD1304 CCD Sensor FPGA Project I am looking for a skilled freelancer to assist me in designing a TCD1304 CCD sensor FPGA project. The project requires the foll...
Read moreRobotics Engineer Needed for Kinematics, Path Planning & Trajectory Optimization (Robotic Arm)
I am looking for an experienced robotics engineer to develop a complete motion system for a robotic arm, including: Scope of Work: • Develop Forward Kinematics...
Read moreGym-Centric Wrist Tracker
I need a wrist-worn health tracker built specifically for strength training. The core feature is automatic detection and counting of each rep, set and the exact...
Read morePCB Design with ESP32 and LiFePO₄ Backup
This project involves designing a robust, production-ready PCB integrating an ESP32 module with a wide input power range of 5V to 60V and a single-cell LiFePO₄...
Read moreHigh-Resolution Imaging System Design
I'm seeking an expert in optical design to develop a high-resolution imaging system. Key Requirements: - Primary application is an imaging system - Design shoul...
Read moreAntenna Array Simulations Using ANSYS EDT
antena theory using ANSYS electronics
Read moreESP32 PCB Design Verification Needed -- 2
I have a finished, four-layer ESP32 board layout that is almost ready for fabrication, but before I release the Gerbers I want a fresh set of expert eyes on it....
Read moreCompact standalone ESP32 Board Design for Max30102 sensor with OLED display
The board is essentially a compact "brain board" — an ESP32-WROOM-32 module with integrated power management, USB-C for charging and programming, and two 4-pin...
Read moreDrone ESC Functional Testing - Shenzhen
I have an electronic speed controller (ESC) that must be function-tested here in Shenzhen. The goal is straightforward: power it up, run it through a complete s...
Read moreFPGA Design and Development Expert
I'm seeking an experienced FPGA developer who can assist with design and development, specifically in HDL coding, using both VHDL and Verilog. Ideal Skills and...
Read moreLong-Range Alert Wristband System -- 2
I’m developing a simple, rugged communication setup made of two parts: a master tablet and multiple wrist-worn receivers. The tablet must house a 5" × 8" screen...
Read moreBattery-Powered 6-Tube VFD Clock PCB
I have six IVL2-7/5 VFD tubes that I want to turn into the display for a portable clock with built-in stopwatch and countdown timer modes. I do not yet have a b...
Read morePCB Design Needed
I need a PCB laid out for a new piece of consumer electronics I’m developing. The schematic is ready; the next step is a clean, manufacturable board that respec...
Read moreXMOS USB-SPDIF to I2S Interface
I need a compact XMOS-based board that moves digital audio data—nothing more—between three inputs (USB Audio Class 2.0, coaxial SPDIF, and optical TOSLINK) and...
Read moreDesign Entertainment Electric Whip
I want an eye-catching electric whip built specifically for entertainment settings. Think of something that can wow an audience at a club night, cosplay convent...
Read moreSimulation & Technical Design of Regenerative Battery Testing System (Based on SKXD-5V3A-512CH)
Project Overview We are planning to develop a regenerative battery testing system based on the architecture of an industrial multi-channel tester (model: SKXD-5...
Read moreSimulink Filtering Model Support
I need an experienced MATLAB / Simulink engineer to turn a signal-filtering concept into a clean, fully functional Simulink model. The core objective is to desi...
Read moreSingle-Layer PCB, 16 Buttons -- 2
I have already drawn the exact board outline in AutoCAD and will share the DXF as soon as we begin. Your task is to turn that shape into a one-layer PCB that ca...
Read morePrecision Strain Gauge Amplifier PCB Design
Hi, I need help designing a precision strain gauge amplifier PCB for a pedal force sensor (PFS) project. Please read the requirements carefully. Project Overvie...
Read moreCompact ESP32 PCB Design
I'm seeking a skilled PCB designer to create a compact PCB for a simple electronic device. The device will utilize an ESP32 for wireless communication via ESP-N...
Read moreESP32 Module-based Prototyping and Production
I need an experienced electronics and software engineer to develop an ESP32-based industrial controller PCB and complete a Python-based automotive ECU programmi...
Read moreMinor PCB Layout Tweaks
I already have the full set of design files for this board and only need the layout adjusted. The schematic stays as-is; the job is strictly about updating the...
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