Update Existing PCB in EasyEDA, Flux, or Altium.
I already have a proven board designed in EasyEDA and will share the original .epro project along with its current Gerber set. The task is limited to component...
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EasyEDA Single-Layer ESP32 PCB
I already have the full BOM, a clear wiring diagram, and a rough layout for my ESP32 board; what I’m missing is a clean, production-ready EasyEDA design that ke...
Read moreExperienced PCB Designer Needed
I have a new electronic product moving from concept to manufacturing and I’m looking for a PCB designer with a solid five-year track record to guide the board l...
Read moreReverse-Engineer SMD PCB for Reproduction
The task is to take an existing, fully populated SMD-only circuit board (no schematics or documentation available) and recreate it so I can send the files strai...
Read moreIoT Embedded PCB Design
I need a production-ready PCB that will sit at the heart of a new IoT embedded system. The board must seamlessly handle wireless communication, integrate multip...
Read morePCB Design for Bathroom Appliance
I need a PCB designed for a bathroom appliance. The PCB should include a 12V relay and a 5V converter. Ideal skills and experience: - Proficiency in PCB design...
Read moreMixed-Signal Power Converter Design
I need a complete mixed-signal circuit that handles power conversion while integrating voltage regulation, power switching, and energy-storage sections in one c...
Read morecustom 18650 battery cell design and prototype
Project Description I’m looking for an experienced freelancer to design a single-cell (1S) 18650 battery pack that includes an integrated BMS and a physical on/...
Read moreDiagnose AK4454VN I2S Connection
The AK4454VN DAC in my design feeds a Dante module over I²S, yet the system remains silent. My main objective is to uncover the exact point of failure and resto...
Read morePCB Design using MSP32, RC522, MCP2515, RJ45
We are looking for a freelance PCB designer to design a compact, deployment-ready controller PCB for an embedded control system. Scope of work: - PCB design bas...
Read morePTH PCB Reverse Engineering
Looking for some electronic engineer to draw schematic from existing pcb which has few pth components connected to the microcontroller communication part. Can n...
Read moreComprehensive EasyEDA Project Review
I have a complete EasyEDA project—schematic, PCB layout, and BOM—ready for fabrication, and I’d like a thorough sanity check before I commit. I need you to: • I...
Read moreHigh-Speed Router Hardware Design
I’m building an integrated computer system and need a specialist to take full ownership of the hardware side of its networking component. The objective is strai...
Read moreDigital VLSI / ASIC Project – Verilog, Synthesis, Gate-Level Simulation & Power Analysis (Cadence)
I’m looking for an experienced Digital VLSI / ASIC engineer to complete a small end-to-end RTL-to-power analysis project using Cadence tools. The project follow...
Read moreESP32 Scrolling Text Display
I'm looking for an experienced developer to create an ESP32-based display system. The primary function of this system is to display scrolling text using a HUB75...
Read more500W DC Motor Controller Design
I’m ready to hand over the full schematic of my 36 V / 500 W brushed-motor controller so you can put it under the microscope. The design is built around three p...
Read moreSTM8S TM1638 Display Project
I'm looking for an experienced electronics developer to create a numeric data display using a TM1638 module and STM8S103 microcontroller. Requirements: - Displa...
Read moreESP32-S3 Dev Kit PCB Urgent
I’m finalising a compact ESP32-S3 development board meant for full-scale manufacturing. The circuit is simple—one ESP32-S3 module, four momentary push buttons,...
Read moreCustom Inverter Design & Prototype
I need a complete inverter designed and taken through to a tested prototype. The scope starts with concept selection—choosing the most efficient topology for my...
Read moreDesign and Development of a Variable 10 kV DC Power Supply Using SMPS Technique
This project involves the design and implementation of a high-voltage, variable 10 kV DC power supply based on Switch Mode Power Supply (SMPS) technology. The o...
Read more10 kV HV Supply Module Design
I’m building an air-purifier stage that needs a reliable 10 kV DC source and I want a complete, ready-to-build design package. The module has to integrate its o...
Read moreAdjustable 10 kV HV Supply
I’m running a series of lab experiments that call for a dedicated high-voltage source, so I need a self-contained module that can deliver a clean, adjustable 5...
Read moreT-Display S3 Footprint & Symbol
I’m putting the T-Display S3 AMOLED Plus module onto a new board and want clean, reusable library parts before layout begins. What I need are complete, error-fr...
Read moreT-Display S3 Footprint & Symbol PCB design
I’m putting the T-Display S3 AMOLED Plus module onto a new board and want clean, reusable library parts before layout begins. What I need are complete, error-fr...
Read moreBreath Analyzer PCB Design -- 2
I’m building a compact consumer-grade breath analyser and need a production-ready PCB that integrates the gas-sensing front end with Bluetooth connectivity and...
Read moreEsquema Hidráulico FluidSIM Cascada
Necesito plasmar en FluidSIM el circuito de una estampadora hidráulica utilizando el método cascada para la secuencia de sus cilindros. Ya dispongo de las espec...
Read moreDebug USB2514B Hub PCB
My custom board built around the Microchip USB2514B-AEZC-TR powers up, yet Windows never shows it in Device Manager. Power rails look solid and with the oscillo...
Read moreWorldwide Patent Filing Support
I have already completed the prior-art search and drafted a full specification for a new hardware-and-software technology. Now I need a registered patent attorn...
Read moreCustom Hydraulic Circuit Design & Specs
I’m setting up a hydraulic system whose main job is to control fluid flow with precision, so I need a complete circuit designed from scratch. The build must inc...
Read moreResidential DB Design in WSCAD
I’m preparing a small residential installation and need a complete electrical distribution board drawn directly in WSCAD. I will supply a reference photo of the...
Read moreRedesign Raspberry Pi CM4 NAS Carrier Board
The new design must prioritize reliability, easy debugging, and manual assembly, using through-hole components wherever possible. Requirements: regulated 12V DC...
Read moreSSR 3-Phase Motor Control PCB
I need a production-ready board that can drive a three-phase motor forward and reverse through solid-state relays while safeguarding the system with reliable ov...
Read moreLED Flash Circuit for BL-600
I need a simple, reliable way to make my BL-600 shock detector flash a light exactly once each time its output toggles. The detector runs at 3 V, and the whole...
Read moreMulti-Channel Short-Range RF Circuit
I have working breadboard prototypes that use the common 315 MHz and 433 MHz ASK modules to trigger an identical downstream PCB. They prove the concept, but two...
Read moreHydroponik-Sensorbox mit Home Assistant -- 2
Ich plane ein kompaktes Mess-System, das in einer einzigen Box vier pH-, vier EC- und vier Temperaturkanäle für meine Nährlösungen bündelt und jeden einzelnen...
Read morePCB Design - IR LED Tracking Marker - Self contained
We are looking for an experienced electronics / PCB design engineer to design a self-contained IR LED tracking marker for a computer-vision system. The project...
Read moreArduino Sonidos Robot Cosplay Transformer
Ya tengo listo un traje de cosplay tipo Transformer y ahora quiero darle vida con efectos de sonido controlados por Arduino. El plan es disparar tres tipos de a...
Read moreESP32-C3 RS232 Bridge PCB
I need an experienced electronics engineer to design a compact, production-ready "Man-in-the-Middle" carrier board for the ESP32-C3-MINI-1-N4 module. The Goal:...
Read moreEasyEDA Schematic and PCB Modifications -- 2
Project Description: I have an existing EasyEDA project with files for both the schematic and PCB (EasyEDA files and PDFs). The scope of this project involves m...
Read moreHigh-Speed RF Mixed-Signal PCB Design
I’m ready to move a complex, high-speed RF and digital concept from pin-map to production, and I need a KiCad specialist who can take full ownership of the sche...
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