Automatic TP5100 Charge Cutoff Circuit
I’m using a 2-cell Li-ion pack (8.4 V full, 7.4 V nominal) with the TP5100 charging module and I need an add-on circuit that will: • Drop the adapter input the...
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Arduino Touchless Sanitizer Prototype
I’m putting together a compact, battery-powered hand-sanitizer station driven by an Arduino UNO. An ultrasonic sensor will sit at the front and, as soon as it s...
Read morePortable Electronic Time-Stamping Device Prototype
Project Summary I need a complete design and working prototype of a portable automatic time-stamping device. The idea is to combine a mechanical numbering stamp...
Read moreUSB-C PD Hub PCB Design
I’m ready to move from concept to production on a compact USB 3 hub built around a USB-C upstream port with full Power Delivery negotiation. The board will be c...
Read moreDfMA Valve Assembly Assistance
I'm seeking assistance for my final year DfMA project on valve assembly. Key Tasks: - Component selection for the valve assembly - Process planning for manufact...
Read moreDual-Size Arduino Nano Control PCB with Schematic and Circuit Design -- 2
I need a compact, two-variant PCB built around an Arduino Nano, an XBee S2C radio module, two potentiometer-driven analog inputs, two stepper motor drivers, and...
Read more15 kW Bidirectional DC-DC Design
I am developing a 15 kW bidirectional stage that links a 400 V DC bus to a 0-330 V 40 ADC battery load. We want to use the Texas Instruments LM5171 controller....
Read moreSmart Home IoT Lighting Developer
I'm seeking an experienced IoT hardware developer to create smart home devices. The main functionality will be lighting control. Requirements: - Develop smart h...
Read moreCapacitive Touchpad PCB Design
I'm looking for an experienced PCB designer to create a capacitive touchpad with 4 simple touch detection inputs. The touchpad dimensions should be 2 inches by...
Read moreBarometric Altimeter with PCB
I'm looking for an experienced developer to program a barometric and accelerometer-based altimeter and design its PCB. The altimeter needs to have the following...
Read moreTFT Touchscreen UI & Setup
I have a standalone TFT touch display that has to power-up cleanly, register every tap, and present a small but polished interface. The job covers three connect...
Read moreESP32 based Custom PCB development
Need a simple PCB designer using ESP32 kicad or any Cad Schematics and PCB development using ESP32, reading only few digital and 6 analog inputs.most of the dra...
Read moreLightweight Kinesiology Tape Cutter
I need a handheld device specifically designed to cut kinesiology tape. The cutter should be lightweight for easy handling and use. Ideal skills and experience:...
Read moreRaspberry Pi Attendance Device PCB Design
I'm looking for an experienced PCB designer to create a custom PCB for a Raspberry Pi-based attendance device. The PCB should be able to integrate the following...
Read moreSmall House Wiring Diagram AutoCAD
I need a full-layout electrical wiring diagram for a compact home—two bedrooms, one kitchen, one bathroom, and one living room. Every room must show dedicated c...
Read moreCompact 2-Layer PCB Layout
I already have a complete Eagle schematic for a small board that hosts a system-on-module plus a handful of interface ICs, several connectors, and its own power...
Read moreMicroController Debugger
I want to make micro controller sniffer which can sniff data passing through the channel RX-TX or SPI or I2C to debug issue of data loss, poor connection betwee...
Read moreDwin HMI & MCU Integration
I’m putting together a small control-and-monitor unit centered on a DWIN DGUS HMI and I’d like you to handle both the screen layout and the firmware that talks...
Read moreSmart Travel Bag Prototype Development
I'm looking for a detailed project proposal to develop a prototype for an advanced smart travel bag. The bag should primarily feature built-in GPS tracking. Add...
Read more2BD/2BA Cottage MEP Schematics UPAtED Floorplan REPOSTED WITH FINAL FLOOR PLAN
I already have complete architectural blueprints for a small, slab-on-grade cottage (two bedrooms, two bathrooms) and now need matching mechanical drawings. Ple...
Read moreDesign Outdoor BLE Scale
I’m moving an outdoor Bluetooth Low Energy scale from concept to production and I’m looking for someone who can take full ownership of the design, optimise it f...
Read more2BD/2BA Cottage MEP Schematics UPAtED Floorplan
I already have complete architectural blueprints for a small, slab-on-grade cottage (two bedrooms, two bathrooms) and now need matching mechanical drawings. Ple...
Read moreUSB-C Hub Prototype Development -- 2
Project Title: Active USB-C Hub Prototype Development Location: Remote (Immediate Start) Engagement: Contract (Project-based) Start Date: Immediate Duration: 2–...
Read moreASAP Electrical Engineering for Childcare Centre
Our new childcare centre is ready to move from concept to construction, and the last piece I need is a complete electrical engineering package delivered as soon...
Read moreLoRaWAN Magnetic Temperature Humidity Sensor
1. General Objective To design, verify, and develop a functional prototype of a low-power, autonomous LoRaWAN sensor that integrates temperature, humidity, and...
Read moreAdvanced 3D Industrial Design for Smart Toothbrush (Future-Upgradeable Architecture) — WITH NDA
IMPORTANT — NDA REQUIRED The freelancer must sign an NDA (Non-Disclosure Agreement) before receiving any detailed documents. No part of this design, concept, in...
Read moreBluetooth-Controlled Wearable Prototype (Confidential Design)
I’m building a compact, battery-powered wearable that pairs a BLE-enabled microcontroller with several low-frequency coil drivers. The core of the job is to tur...
Read moreReplicate ESP32 Coprocessor PCB with minor differences
I already have a proven ESP32-based coprocessor board for the TI-84 calculator and a comprehensive PDF that locks down every detail—final schematics, part numbe...
Read moreDiseño Profesional de PCB
Requiero el diseño completo de una placa de circuito impreso (PCB) para un ecualizador activo de 3 bandas con amplificador de salida, basado en el esquema ya de...
Read moreAdvanced 3-Phase Smartmeter PCB Engineer -- 2
Job Title: PCB & Embedded Systems Engineer for Advanced 3-Phase Smartmeter Design We are developing a compact, high-performance 3-phase smartmeter designed to m...
Read moreMini UPS Design with 18650 Cells
I'm looking for an experienced electronics designer to create a mini UPS (Uninterruptible Power Supply) using 18650 battery cells. Key Requirements: - DC input:...
Read moreIngeniero ESP32/Electrónica de Potencia para Validar MVP de Seguridad IoT (Remoto)
Descripción del Proyecto: Somos Probulón, una startup de seguridad. Tenemos el diseño de nuestro prototipo final y necesitamos un Ingeniero Electrónico experto...
Read morePCB y Electrónica Gadget Portátil
Necesito un ingeniero electrónico que lleve el desarrollo del circuito y la placa para un gadget portátil de electrónica de consumo que estamos preparando. El d...
Read morePCB para Convertidor AC-DC-AC
Necesito el diseño completo de la tarjeta para un convertidor back-to-back AC-DC-AC con entrada trifásica y salida monofásica. El equipo deberá manejar aproxima...
Read moreLC Resonator Frequency Control Subsystem
[This AI generated description is only partially accurate. A more accurate one will be provided] I have two separate LC tanks that must run in lock-step at arou...
Read moreConception PCB multicouche personnalisé
Je souhaite la conception d’un circuit imprimé multicouche destiné exclusivement à des composants montés en surface. Le PCB devra impérativement respecter des d...
Read moreOrCAD to Altium Conversion
I'm seeking an experienced freelancer to convert OrCAD library files to Altium Designer format. Requirements: - Convert OrCAD files, focusing on custom componen...
Read moreUV Protection Smartband Mobile App
We are university students working on a smart wristband project designed to protect pilgrims (Hajj/Umrah) and field workers in Saudi Arabia from excessive sun a...
Read moreAutomotive Battery Disconnect Controller
I’m building a compact controller board that will sit between a 12 V vehicle battery and a high-current contactor, taking care of everything except the full pow...
Read moreCAD Electrical Schematic for Machinery
I need a detailed electrical schematic for industrial manufacturing equipment. The schematic should be drawn up in CAD. Requirements: - CAD proficiency - Experi...
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