Heavy Copper PCB Design
I already have the full system architecture and every component selection locked in; what I need now is a seasoned PCB designer to turn that documentation into...
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Heavy Copper PCB Design
I already have the full system architecture and every component selection locked in; what I need now is a seasoned PCB designer to turn that documentation into...
Read more2-Layer Automotive PCB Design: Multi-Port USB Charger & Data Bypass Module (JLCPCB/LCSC Optimized)
Hello, I need a schematic and 2-layer PCB layout for an automotive-grade Multi-Port USB Charger box. It's a hardware-only project (no firmware/software). Key Go...
Read moreESP32 Industrial PCB Design Review
ESP32 controller impedance matching multilayer design signal integrity analog signal design buck converter 24VDC input supply 5V and 3.3V power rails Relay outp...
Read moreDevelopment of plug-in boards
For an R&D platform based on the SAM E54 Xplained PRO, we would like to make several (starting with 6) plug-in boards. The boards should be placed on one of the...
Read moreGeneral Electrical Work Assistance -- 2
I’m looking for a qualified electrician who can step in and handle a range of possible tasks on-site. The exact scope is still flexible—I may need anything from...
Read moreKICAD PCB Design for Radio
I'm seeking an experienced PCB designer to create a KICAD PCB design. Deliverables: This is a PCB Design coursework based on the STM3210E-EVAL reference design...
Read moreDPR Augmentation plan
Our development team in Ahmedabad is moving into the next round of builds and I need clean, reliable power supply systems engineered from the ground up. The wor...
Read morePCB Badge Redesign Based on Existing Gerber Files (Add New Shape, SIM Slot & LEDs)
We are looking for an experienced PCB designer to modify and redesign an existing PCB badge. We already have a working PCB badge design along with the Gerber fi...
Read moreElectrical Engineering Report Writer
I need a skilled technical writer who can turn raw electrical-engineering data, calculations, and design notes into clear, professionally structured engineering...
Read moreResidential Electrical Design Blueprint
I’m ready to move from architectural drawings to a fully engineered electrical plan for my entire house. The goal is a complete, permit-ready package that meets...
Read moreAnalog Control PCB Design
I need an analog circuit designed from the ground up and then laid out on a production-ready PCB for a consumer-electronics product. The finished board must ope...
Read moreLTSpice Simulation Assistance Needed
I am looking for LTSpice expert who can deliver simulation result per project. It is not one time project and if you are good candidate, we can cooperate for a...
Read moreResidential Electrical Design & Estimate
I have two new-build residences in Santa Rosa Beach, FL, each served by a 200 A main. I need a complete electrical layout and an itemised material estimate for...
Read moreSmartwatch PCB for Sleep Monitoring
I need a compact, low-power PCB that turns my smartwatch concept into a reliable health-monitoring device focused on tracking sleep patterns. The board will hos...
Read moreCompact Control Panel PCB Design
I have already worked out the detailed mechanical layout for a very small control panel that sits inside a tubular enclosure. At its heart are two single-pole,...
Read moreReview My Circuit Schematic - Simple battery balancer
note: this is MCU controlled at 3.3V, the controller is for both a single 12v gel battery or 1x 24V or 2x 12V gel batteries for 24V, the charge amps should not...
Read moreAnnular ESP32 PCB Design
I’m building a two-layer, donut-shaped PCB around ESP32-WROOM-32U. The outer diameter must not exceed 92 mm, the inner cut-out must remain at least 54 mm, leavi...
Read more家庭用对话小型机器人
我正在启动一款面向家庭环境的小型机器人项目，目前处于“初步需求”阶段，核心目标是让它能够自然地对话与陪伴家人。机器人需要具备稳定的语音识别能力，并在接收到指令后以...
Read moreCustom Country-Shaped PCB Redesign
I already have working Arduino- and ESP32-based boards; what I need now is a reshape of the boards to a custom shape and should have little effect on the traces...
Read moreBuild a 4G GPS Tracker for School Project
I am looking for an electrical engineer to design and build a functional 4G GPS tracker. The deliverables should include both the design documentation (schemati...
Read morePortable Multimodal Analyzer PCB Design - 02/06/2026 02:35 EDT
We are developing a portable, handheld research instrument that combines two measurement modalities in a single pen-form device: 1. ELECTRICAL IMPEDANCE SPECTRO...
Read moreInstall Rotary Dimmer for LED Lighting
I need a licensed electrician to replace an existing on/off switch in my shop with a single-gang rotary dimmer that is fully compatible with the LED fixtures al...
Read moreESP32-C6 Dual CAN Carrier Board Design
I need a complete hardware design for an ESP32-C6 Dual CAN carrier board that will sit at the heart of a new communication device. The board must do three thing...
Read moreESP32-C6 Dual CAN Board Design
I need a complete hardware design for an ESP32-C6 Dual CAN carrier board that will sit at the heart of a new communication device. The board must do three thing...
Read more3.3 V-to-6 V Pulse Converter
I’m running a Teensy 4.1 that delivers a 0 – 3.3 V square wave at 80 kHz. For my signal-transmission stage I must boost that logic-level waveform to a clean +6...
Read morePortable Multimodal Analyzer PCB Design
We are developing a portable, handheld research instrument that combines two measurement modalities in a single pen-form device: 1. ELECTRICAL IMPEDANCE SPECTRO...
Read moreKiCad v10.0 Schematic Creation from PDF -- 2
This task is for generating a KiCad v10.0 schematic from a given PDF. And if someone wants to also generate the pcb layout for it is welcome but the budget is v...
Read moreModify PCB Placement in KiCad
I already have a complete KiCad project for a board, but need 5 components to be added and the design to be modified to accomadate this. What I will provide • T...
Read moreBattery-Powered LoRa PCB Design
I'm building a compact, battery-powered LoRa sensor node for permanent outdoor deployment, so the board must combine low-power performance with solid RF discipl...
Read moreSmall PCB Modification: MOSFET, Components, Connectors
I have a compact PCB design that needs an edit. The existing power MOSFET footprint must be swapped for a new part number Addition of an inductor and capacito a...
Read moreESP32 Circuit Validation and Firmware Coding
I already have a flow chart and a rough-draft circuit diagram for an ESP32-based board. Before I commit to hardware, I need a fresh pair of expert eyes to confi...
Read more4-Layer PCB Design for Radio
I need a 4-layer PCB designed using KiCad. The board will have 60 components and dimensions of 70mm x 50mm. Essential requirements: - Experience with KiCad - Pr...
Read moreDiode/LED Tester Circuit Design
Diode/LED Tester. I will supply BOM and Layout. This is my first circuit card. - Derating: move to components that are derated (e.g., resistors at ≥60% rated di...
Read moreIndustrial Electrical and Fire Services Review
I need a qualified service engineer to review electrical and fire services drawings for an office warehouse development project. This review is essential for ob...
Read morePortable Multimodal Analyzer PCB Design
We are developing a portable, handheld research instrument that combines two measurement modalities in a single pen-form device: 1. ELECTRICAL IMPEDANCE SPECTRO...
Read moreWaterproof Bi-Color LED Bulb
I need a bi-color LED bulb designed for outdoor safety signaling. The bulb should be red/green and operate on 12V DC. It should feature 12 LEDs mounted on a cir...
Read moreQi Wireless Charging Adapter Development
I'm looking for a specialized Qi wireless charging adapter with USB-C passthrough. This is for my Galaxy A16, primarily to use with my car GPS while charging. K...
Read more8-Bit SAR ADC VLSI Layout Design
The project is a VLSI CMOS circuit layout design for an 8-bit SAR ADC system. I already have the schematic design completed, and I need the physical transistor-...
Read moreAudio to Ultrasonic Hardware Prototype Development
Looking for an experienced Electronics Engineer to develop a prototype capable of converting audio input into ultrasonic output. Requirements: * Audio input sup...
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