LoRa RGB LED Cue System
My lighting software can already stream a simple serial string for every cue it fires. I now need that string to travel wirelessly over LoRa to a tiny, battery-...
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ESP32-C5 Device Schematic Design
I already have the full bill of materials for a small ESP32-C5 project and will be routing the PCB myself; what I’m missing is a clean, professionally organised...
Read morePower Distribution PCB & Firmware -- 2
I’m building a compact board whose sole mission is clean, reliable power distribution. I already have the system requirements mapped out at a high level; now I...
Read moreESP8266 Bidirectional IR Control
I need robust, well-documented firmware that lets an ESP8266 on the Arduino platform both send and receive infrared commands for multiple air-conditioner remote...
Read moreDDR4 Layout Design
need a DDR4 PCB layout designer. The job covers the full physical layout, tuned for high-speed signal using Mentor tool PADS PCB.
Read moreCompact Atmega32U4 LED Controller
I need a full EasyEDA project—schematic and routed PCB—for a tiny Atmega32U4 board that lets a computer drive a single external LED through a 3-pin XH-JST conne...
Read moreSchematic Verification and PCB Redesign
More information will be given to eligible freelancer.
Read moreAI Cattle Collar Development
I need a working prototype of an AI-enabled collar that keeps real-time watch over a cow’s well-being and daily habits. The collar has to: • Track health by con...
Read moreIndustrial Battery Charger & BMS Design
Project : to design Battery charger and BMS(Battery management system) Existing Battery Configuration 2 × 12V, 100Ah Sealed Lead Acid (SLA/VRLA) batteries conne...
Read morePrecision Vacuum Component Selection
I’m assembling a robot vacuum that must deliver high-precision cleaning on mixed surfaces, and I need an expert to specify every hardware component that makes t...
Read more800V 400A Pulsed PSU Design
I’m developing a laboratory‐scale system for scientific research that needs a robust, constant-current pulsed power supply. The unit will take a 380 V, 50 Hz th...
Read morePrototype 2D LiDAR Sensor Development
I am building a proof-of-concept 2D LiDAR unit from the ground up and need a mainland-based embedded electronics engineer who can handle every step of the desig...
Read moreRV1126B AI Camera Carrier PCB Design – AR0234, Dual GMSL2, MIPI CSI-2, Ethernet and Isolated Trigger
We are developing an industrial AI camera system based on the Rockchip RV1126B processor and onsemi AR0234 global-shutter image sensors. We want to use a ready-...
Read moreCustom Jewellery Display Tablet Development
Engineering Proposal – Slim Custom Jewellery Tablet (MVP) We are looking for an engineering partner to develop a slim, premium, purpose-built touchscreen tablet...
Read moreUrgent PAA5100JE ESP32D Software Setup
I have an ESP32-D dev board and three unused PAA5100JE optical-flow sensors. I only need to bring one online first, confirm it streams clean motion data, then r...
Read moreDigital Control System Design for Radio
I'm seeking an experienced circuit designer to create a digital control system for a Bi Color LED Matrix. The core component of this system will be a microcontr...
Read moreSimulIDE Arduino Hybrid Power Design
I want to build a small-scale hybrid renewable power system—solar panels, wind turbines and tidal generators all working together—inside SimulIDE, driven solely...
Read moreHDMI CEC & IR Controller Board Design
Project Brief: ESP32-P4 + ESP32-C6 HDMI CEC & IR Controller Board 1. Project Overview Seeking an experienced PCB designer to create a custom, compact controller...
Read moreRaspberry Pi Eye-Tracking Drawing
I am building a proof-of-concept that lets a Raspberry Pi follow a user’s gaze and immediately translate that data into visual output on an attached screen. At...
Read moreSmart Home Thread-Enabled PCB Design
I need a compact, production-ready PCB for a smart-home product that will sit at the heart of a Thread-based system. The board’s sole critical job is reliable w...
Read moreAdvanced Electronics Design Project
We are seeking a Senior Electrical Designer to support the design of advanced manufacturing facilities, including semiconductor manufacturing plants, data cente...
Read moreReal-Time Embedded Firmware Development
LOOP every ~2 seconds, for each burner sensor independently: 1. Read current temperature from sensor 2. Add reading to a rolling 15-20 second window of recent r...
Read moreTriple-Rail DC Power PCB Design -- 2
I need a compact, production-ready PCB that accepts a single DC input and delivers three regulated rails—24 V @ 12 A, 12 V @ 12 A and 5 V @ 10 A—for an industri...
Read moreWearable Health Firmware Development
I’m finalising the hardware for a new piece of wearable technology and now need the firmware that will bring it to life. The sole purpose of this first release...
Read moreWebSocket Hub for 100 ESP32s
I have roughly one hundred ESP32 boards on the same LAN. A single Raspberry Pi will sit in the middle, behaving as a master gateway: it exchanges messages with...
Read more800V 400A Pulsed PSU Design
I’m developing a laboratory‐scale system for scientific research that needs a robust, constant-current pulsed power supply. The unit will take a 380 V, 50 Hz th...
Read moreArabic Sign Language Glove: Mentor Required
Title: Mentor Needed: Guide Student Research Team Building an Arabic Sign Language Glove (Step-by-Step, Video Calls) — Phase 1 Budget: $25–$40/hour, total budge...
Read moreESP32 Touch NMEA2000 Display
I am building a compact touch-screen instrument driven by an ESP32 that sits on a NMEA2000 backbone and shows ONLY the data I care about—environmental readings...
Read moreTherapeutic Inhalation Device Hardware Design
I need a complete electronic hardware solution for a therapeutic, drug-delivery device that administers medication via inhalation. The brief covers everything f...
Read moreDesign a Compact Universal ESP32 Smart Fan-Regulator PCB with Wi-Fi, Ethernet, BLE, Gerbers and 3D Enclosure
Project Title Design a Compact Universal ESP32 Smart Fan-Regulator PCB with Wi-Fi, Ethernet, BLE, Gerbers and 3D Enclosure Project Description I need an experie...
Read moreRechargeable BLE Tracker and App
Project Overview: This project involves a rechargeable BLE tracker that connects to an iPhone app and helps users locate misplaced items. Key Features: BLE pair...
Read moreDiseño de PCB en KiCad (Carrier Board RPi 3B+, Audio/RF Isolation, DFM JLCPCB)
Buscamos un ingeniero electrónico o diseñador de hardware senior para diseñar la "BumbiPTT Interface": una placa base custom en KiCad que aloja una Raspberry Pi...
Read moreSmart Device Health Monitoring Development
Project: Smart Device Health Monitoring Unit Project Objective: Develop an embedded device that monitors the health of 3-5 connected devices, displays status lo...
Read moreEnergy Monitor PCB Layout Design
I already have a complete schematic for my single-phase energy-monitoring circuit; what I need now is a production-ready PCB layout that faithfully follows it a...
Read more12V Square Wave Signal Generator
I need a square wave signal generator with the following specifications: Output Voltage: 12V Frequency Range: 100 kHz to 1 MHz Duty Cycle: Variable Additional R...
Read moreSenior Embedded Firmware Engineer Needed
We are seeking a Senior Embedded Firmware Engineer or Small Embedded Systems Team to extend and integrate an existing commercial embedded firmware platform for...
Read moreArduino Script for ESP32 UI
I already have a two-screen interface finished in Squareline for my ESP32-CYD based nervoscope. All component IDs and events are set; what I am missing is the A...
Read moreRobotics Actuation and Control System - 03/08/2026 19:09 EDT
I'm developing a robotics application and need expertise in integrating solenoids, servo motors, and sensors. These components are critical for the actuation me...
Read moreAndroid Box Boot Menu Image
I’m running an Onn Android TV box and want the device to look at a USB drive the moment it powers up. Instead of jumping straight into the stock interface, it s...
Read more4S 16.8 V BMS Design
I need a compact Battery-Management System for a 4-cell Li-ion pack that reaches 16.8 V at full charge. The board must integrate every key safeguard: over-charg...
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