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DESCRIPCIÓN: Busco estudiante o técnico de electrónica para realizar pruebas y validación de firmware en un proyecto real basado en ESP32. El firmware ya está desarrollado y estructurado. El trabajo consiste en: * Compilar firmware * Cargarlo en ESP32 * Realizar pruebas guiadas * Reportar resultados La arquitectura del sistema y el seguimiento técnico están organizados mediante asistencia de inteligencia artificial que ya conoce el proyecto completo y va indicando los pasos a ejecutar. El técnico no tiene que diseñar el sistema, solo ejecutar pruebas y reportar. QUE SE OFRECE: Este es un proyecto real que se está preparando para salir al mercado. Además de la remuneración, se ofrece: * Partic...

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I need a medium complexity (3-4 layers) PCB designed for signal processing. The design should be capable of accommodating surface-mount components. Requirements: - 3-4 layers PCB design - Signal processing functionality - Surface-mount component integration - Gerber file generation Ideal Skills: - Experience with PCB design software (e.g., Altium, Eagle) - Strong understanding of signal processing circuits - Proficiency in layout for surface-mount components - Attention to detail and accuracy Please provide samples of previous work.

We are seeking an experienced Zynq UltraScale+ FPGA engineer to assist with the bring-up of our ZCU104 board, focusing on camera interface and testbench development. The ideal candidate will have hands-on experience with FPGA design, verification, and debugging. You will be responsible for ensuring the functionality of the camera interface and developing a comprehensive testbench. Knowledge of embedded systems and familiarity with relevant development tools is crucial for this role.

I have a finished KiCad PCB layout and now need a clean, print-ready PDF compiled from it. The final document must contain six A4 landscape pages arranged in this exact order: 1. Copper Top Layer 2. Copper Inner Layer 1 3. Copper Inner Layer 2 4. Copper Bottom Layer 5. Component Placement Top Layer 6. Component Placement Bottom Layer Resolution has to be crisp enough for both close-up review and high-quality printing. I’ll provide the KiCad source files as soon as we get started; you simply export each required layer, keep KiCad’s default rendering colours, and merge them into a single PDF. I’ve attached a previous example—please note the labels are mirrored on that file due to an earlier issue, so yours should read correctly. Deliverable • O...

Hello, I am looking for an experienced PCB designer to complete schematic review and PCB layout for an ESP32-based industrial IoT board using EasyEDA (Collaborator mode). Scope of Work 1. PCB Outline & Mechanical Alignment The PCB outline must match an existing device layout based on measurements and connector positions that I will provide. There is no reference Gerber file, so the board outline must be recreated carefully and confirmed with me before routing. 2. Schematic Review & Improvement (Important) You must review the schematic and confirm it is electrically correct and suitable for stable operation, including: Component ratings verification Power design validation Decoupling and grounding ESP32 stability considerations LM2596 switching regulator layout considerations Identi...

I need the attached meter-layout sketch converted into a clean, professional one-line diagram showing the runs from the utility transformer to the meter pan. Label and conductor size must match the attached layout. Should include title block and sheet Deliverables: • PDF suitable for submission I’ll review the PDF against the template to make sure it's as requested; once it matches both, the project is complete.

I am developing a compact handheld consumer device prototype that requires integration of a rechargeable battery and small electronic module inside a custom 3D printed enclosure. I am looking for an experienced embedded hardware / electronics engineer who can help design and prototype a small, safe, battery-powered system suitable for a handheld form factor. The device will require: • Integration of a rechargeable lithium battery (3.7V or similar) • Safe charging system (USB-C or similar) • Small heating or vapor-generating element OR similar compact load component • Efficient power management and protection circuitry • Compact PCB design suitable for fitting inside a slim enclosure • Guidance on component selection and prototype assembly The enclosur...

Projeto: Engenharia Reversa de Placa Eletrônica Legada Descrição do Projeto Busco profissional com experiência comprovada em eletrônica para realizar engenharia reversa completa de uma placa eletrônica legada, com o objetivo de: Reproduzir fielmente o funcionamento elétrico original Modernizar componentes obsoletos Gerar documentação técnica completa e atualizada Garantir compatibilidade mecânica, elétrica e funcional com o equipamento original O projeto seguirá um procedimento técnico estruturado já definido internamente Escopo do Trabalho O profissional deverá executar as seguintes etapas: 1. Análise e Correlação do Esquemático Verificaç&...

I'm seeking an experienced AutoCAD designer specialized in 2D design for electrical control panels. Requirements: - Design control panels, including circuit breakers and switches - Modify existing designs and create new ones Ideal Skills: - Proficiency in AutoCAD, specifically for electrical designs - Experience with control panel design - Strong attention to detail and accuracy

I'm seeking an experienced AutoCAD designer specialized in 2D design for electrical control panels. Requirements: - Design control panels, including circuit breakers and switches - Modify existing designs and create new ones Ideal Skills: - Proficiency in AutoCAD, specifically for electrical designs - Experience with control panel design - Strong attention to detail and accuracy

I already have the full schematic and the finished PCB files for a board that combines an ESP module with a PIC18F microcontroller. What I’m missing is a clear, practical explanation of how everything talks to each other, especially over UART, and how that interaction is implemented on the physical board. Here is what I need from you: • A step-by-step walkthrough of the signal paths that handle UART traffic between the ESP and the PIC18F, including any level-shifting, buffering, or hand-shake lines that support the link. • A guided tour of the PCB layout that shows where those signals travel—layer changes, vias, ground references, decoupling, and any routing choices that affect integrity or noise. • Simple notes on any supporting circuitry (power rails, ...

I already have the full schematic and the finished PCB files for a board that combines an ESP module with a PIC18F microcontroller. What I’m missing is a clear, practical explanation of how everything talks to each other, especially over UART, and how that interaction is implemented on the physical board. Here is what I need from you: • A step-by-step walkthrough of the signal paths that handle UART traffic between the ESP and the PIC18F, including any level-shifting, buffering, or hand-shake lines that support the link. • A guided tour of the PCB layout that shows where those signals travel—layer changes, vias, ground references, decoupling, and any routing choices that affect integrity or noise. • Simple notes on any supporting circuitry (power rails, ...

I need solution for three questions electronics MATLAB/simulations file attached 1.35 1.36 1.39 Only induvial experts and tutors no agencies After this i will have so many projects Fair price flexible with time good availability of time

Ho già costruito alcuni prototipi di un circuito in grado di commutare un’unica linea da 230 V, 16–30 A, verso 4, 8 o 12 uscite; --senza perdita di potenza--, nessuno, però, raggiunge ancora gli standard che mi aspetto. Dispongo di schemi, calcoli, misurazioni termiche e log di prova: materiale sufficiente per chiarire ogni dettaglio tecnico e velocizzare il tuo lavoro. Mi occorre un progettista senior che sappia trasformare tutto questo in una soluzione definitiva, completa di firmware su ESP32, con PCB multilayer (4 o 6 strati, produzione JLCPCB - copper 3once) e una simulazione accurata e documentata prima della produzione. Requisiti tecnici da rispettare • Massima efficienza energetica, protezione dei componenti e precisione nella commutazione sot...

I'm seeking an engineer to create an intelligent mouse trap focused on monitoring and alerting. The trap should utilize a motion sensor for mouse detection and an actuator to trigger a trap upon detection. Key Requirements: - Motion sensor for detection - Actuator to trigger trap - Notification system for alerts Ideal Skills and Experience: - Experience with sensors and actuators - Knowledge in IoT and notification systems - Background in hardware development and prototyping Please share your relevant experience and approach.

I'm looking for an Arduino code that will trigger RGB LEDs to change color based on a pulse rotary dial input. Requirements: - Use of a pulse rotary dial - RGB LEDs whose colors will be controlled by the rotary dial input Ideal Skills and Experience: - Proficient in Arduino programming - Experience with rotary dials and RGB LED control - Familiarity with electronics and circuit design

Hello , I have a cabled weather station ready to go, but I need an experienced hand with the physical installation side only. The job covers everything from mounting the sensors and console, running and securing the cable, to making sure connections are weather-proofed, grounded, and reading correctly once powered up. Brand is flexible—I simply need someone familiar with the usual hardware found in systems such as Davis Instruments, AcuRite, La Crosse, or similar. Only serious freelancer Auto bids not good Thank you

I’m developing a compact medical-grade board that will sit at the heart of a new vital-signs monitor. The PCB must reliably acquire and process heart rate, blood pressure, and respiratory rate signals, then pass the data to a microcontroller for further analysis and display. Here’s what I need from you: • Complete schematic capture based on my sensor and MCU selections • Four-layer board layout optimized for low-noise biomedical signals (Altium or KiCad preferred) • Manufacture-ready Gerber files, pick-and-place data, and a clearly structured BOM with medical-grade component choices • Design reviews at schematic and pre-release layout stages so we can make sure the board meets IEC 60601-1/-2 spacing, leakage, and isolation requirements • Brief ...

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I am looking for someone to develop hardware on my request, it will be simple projects as seen on you tube. I am interested to know hourly rates, if I provide the hardware and code they would just need to wire them up. Would be nice to have someone from India NCR.

I need a PCB designed specifically for a one-off project; it is not part of a commercial product line, so flexibility and creativity are welcome. The board will carry only analog circuitry—no digital sections—centred around operational amplifiers and a small signal-processing stage I will detail once we start. What I will supply: the schematic (PDF or KiCad), preferred footprints, and basic mechanical constraints. What I need from you: a clean, manufacturable layout with proper analog grounding practices, complete Gerber/ODB++ files, a reviewed BOM, and the original design file so I can revise it later if needed. Please aim for standard two-layer construction unless you advise otherwise for noise reasons. Acceptance will be based on: • DRC-clean files that import i...

The task is to design a compact PCB that drops straight into an SCX 1/32 car so it can run on a digital track. I want the board to read the track’s reed-sensor signal, let me assign any of 20 unique car IDs in firmware, and expose a surface-mount USB-C port on the edge for easy flashing once the body shell is back on. Size must stay close to the original analogue board footprint (about 24 × 18 mm, height under 6 mm) but I can adapt mounting holes or connector positions if you have a cleaner layout idea. Power comes from the standard track pickups (nominal 14–18 V DC), so include an efficient buck or LDO to feed the microcontroller and reed circuitry. I haven’t locked the MCU yet; pick anything small, inexpensive, and easy to program—ATmega, STM32, ESP32, or s...

I’ve drafted a single-layer board in Altium Designer and now need a seasoned set of eyes to run thorough simulations before I commit to building the first prototype. Your task is to import my project, verify the stack-up and component models, and perform all relevant electrical, thermal, and rule-check simulations available in Altium. Key goals • Confirm that signal integrity and power distribution meet design intent. • Flag any DRC or manufacturing issues early so I can correct them before fabrication. • Produce a concise simulation report summarizing the tests run, key plots or screenshots, and your recommendations. Deliverables 1. Updated Altium project files with all simulation settings preserved. 2. PDF or DOC report of findings and suggested fixes. ...

I need a compact, production-ready circuit that brings reliable wireless communication to a new consumer-electronics device. The work begins with schematic capture and component selection, moves through PCB layout, and finishes with ready-to-manufacture Gerbers, a complete BOM, and clear test guidelines. The radio link is the heart of the design, so careful RF layout, antenna matching, and regulatory-compliant power levels are essential. Bluetooth LE is my preferred protocol, though I am open to Wi-Fi or other 2.4 GHz solutions if you can demonstrate lower cost or better battery life without sacrificing performance. Please plan on: • Delivering editable design files in Altium, KiCad, or Eagle, plus PDFs for quick review • Calling out any critical components with long le...

I need a concise Python 3 script that will run on a Raspberry Pi 5 and do the following: • Watch a single GPIO input line for the HIGH digital signal coming from my Sony camera’s built-in AI output. • As soon as that digital signal is detected, drive a separate GPIO output that energises a small 5 V solenoid for five seconds, then automatically switch it off. • Debounce or otherwise ignore any further triggers until the five-second period is complete. The camera only provides a digital signal, so no protocol parsing is required—plain HIGH/LOW logic on the GPIO pin is all I need. The trigger itself must use the Pi’s native GPIO header rather than USB or networking. I haven’t fixed the exact GPIO numbers yet; feel free to suggest sensible default...

I'm seeking an experienced designer to create a 12V electrical panel for installation on the interior of a canopy. The panel will power lights, a fridge, and charging ports. Key requirements: - Incorporate a fuse box and circuit breakers for protection - Design must fit securely and function efficiently within the canopy interior Ideal skills and experience: - Expertise in 12V electrical systems - Experience with designing electrical panels - Knowledge of safety standards and protection mechanisms

I need an ebike throttle limiter that sits between the ebike throttle ( running 5v red, black (gnd) and white control wire and its controller : (DO NOT CUT these) Throttle RED (+5V) ------------------------------------ Controller RED (+5V) Throttle BLACK (GND) ------------------------------------ Controller BLACK (GND) (ONLY cut/switch the WHITE signal) Throttle WHITE (signal) ----+-----------------------------> Switch T1 | +----[ Rseries 1kΩ ]----+-----> Switch T2 = LIMIT NODE | +-----> Pot BLACK (wiper) Pot RED ---------------------------------------------> Controller...

I want to build a compact, two-way Bluetooth audio interface for a HAM radio. The core goal is a 2-way bridge between the radio and a realtime camera running on a linux board via buletooth. Digital or analog volume adjustment is needed Device must be battery and/or 12V DC operated, with DC12V charging battery if present What I need: • Full-duplex transmit and receive so both the radio’s microphone and speaker lines travel over Bluetooth. • A design that plays nicely with typical HAM radio mic/headphone levels. • Optional Radio PTT Sense to mute microphone input if PTT button not pressed • Stable pairing, clear voice quality, and minimal latency. Please provide: 1. Schematic and bill of materials (module choice is up to you; CSR, ESP32, or similar is fine). 2...

I already have a working ESP32 design in KiCad and need it brought to its final, production-ready form for a commercial product that must clear CE. The job centres on three key changes: swapping the Micro-USB for a USB-C connector, integrating a Li-Po charging IC, and tweaking the board outline and component placement so everything fits a new enclosure while preserving optimal antenna clearance, decoupling, and thermal performance. Please keep manufacturing constraints in mind and pass every KiCad DRC before delivery. Timeline is tight three days from award so I’m looking for someone who can move quickly yet meticulously. Deliverables • Updated KiCad project (schematic and PCB) • Fabrication package: Gerbers, drill files, BOM, and pick-and-place (CPL) ready for PCB...

I am looking for an experienced RF hardware designer to consolidate and miniaturize an existing RF system based on a MYIR Zynq-7020 board. The current setup includes: 1. MYIR Zynq-7020 board (fixed, no redesign) 2. Adapter board 3. Two separate RF transmitter boards The goal is to integrate the two RF boards and the Adapter board into a single compact adapter board, while keeping the existing electrical interfaces to the MYIR board unchanged and minimizing or avoiding FPGA/firmware changes as much as possible. Scope of Work (High Level) - Integrate two RF transmit chains on one board - Use a shared reference oscillator and PLL for both RF paths - Replace discrete RF filters with compact off-the-shelf RF filters - Replace legacy power regulators with modern, small LDOs - Add RF routing op...

I’m building a mini ventilator—an embedded medical device combining mechanical and electrical subsystems—and I’m looking for a dependable partner who can translate detailed specifications into working hardware and firmware. Your responsibilities will include hardware design, firmware development, and end-to-end integration and testing. How we’ll work: • I’ll provide clear, itemized requirements; you’ll convert them into schematics, PCB layouts, and clean, well-documented firmware. • We’ll maintain a tight feedback loop with regular progress updates, clarification where needed, and rapid iterations after reviews. • Accuracy, reliability, timelines, and strict confidentiality are non-negotiable. Expected deliverables (as appli...

I need an electronics specialist based in Mumbai who can take a lithium-ion battery management system from concept to a tested prototype. You will work with me locally so that component sourcing, quick iterations and on-site testing are easy. The circuit must reliably handle overcharge protection and intelligent load balancing across the pack. I am looking for you to create the full schematic, PCB layout and prototype on real lithium-ion cells in my lab and then hand over the working prototype plus and design files.

FM-transmitter for 433 MHz (BFR93W transistor, electret mic front end, bias and tank network). What I need now is a compact, production-ready layout inside a 13.5 mm circular, 2-layer board that I can share with a PCB house without further edits. Everything will be done inside an EasyEDA Shared Workspace; once you send me your EasyEDA username I’ll make you an editor so you can work directly on the live project. The priority is to minimise interference while respecting the strict size limitation, critical component placement around the RF path, and tight signal-routing clearances. If you’re used to controlled-impedance traces, short RF loops, and grounding tricks on tiny boards, you’ll feel right at home. Deliverables I expect at hand-off: • Finalised EasyEDA desig...

Hello , I need a complete design for a compact consumer-electronics board that revolves around a PIC microcontroller. The scope spans three tightly-linked parts: • PCB hardware – Produce the schematic and multilayer layout in Altium Designer, include all libraries you create, and deliver the full manufacturing package (Gerbers, drill files, pick-and-place, and a PDF schematic). • MCU firmware – Write well-commented code in MikroBasic (or another PIC-friendly tool if you justify the switch). The firmware must read multiple sensors, exchange data through an efficient serial protocol, and use smart power-saving modes to stretch battery life. Please supply project files, compiled HEX, and a short flashing guide. • PC interface – Build a Windows utility in VB....

I need a complete design for a compact consumer-electronics board that revolves around a PIC microcontroller. The scope spans three tightly-linked parts: • PCB hardware – Produce the schematic and multilayer layout in Altium Designer, include all libraries you create, and deliver the full manufacturing package (Gerbers, drill files, pick-and-place, and a PDF schematic). • MCU firmware – Write well-commented code in MikroBasic (or another PIC-friendly tool if you justify the switch). The firmware must read multiple sensors, exchange data through an efficient serial protocol, and use smart power-saving modes to stretch battery life. Please supply project files, compiled HEX, and a short flashing guide. • PC interface – Build a Windows utility in VB.NET ...

Abstract: Manufacturing-Ready 130nm CMOS Inverter Design The objective of this project is to design, verify, and prepare a standard CMOS inverter for fabrication using the SkyWater 130nm Open-Source PDK. Unlike theoretical projects, this work follows a complete "Silicon-to-GDS" flow. The process begins with Schematic Capture and Pre-Layout Simulation to establish electrical baselines. This is followed by Physical Layout, where the geometric structures of the NMOS and PMOS transistors are manually drawn according to strict foundry Design Rule Checks (DRC). The design is then validated through Layout vs. Schematic (LVS) to ensure physical-electrical equivalence. Finally, Parasitic Extraction (PEX) is performed for Post-Layout Simulation to account for real-world wire resistance and...

igid-Flex PCB Design for Smart Ring Wearable I’m developing a compact smart ring device and need an experienced PCB engineer to design a rigid-flex PCB. The design includes: A flex PCB section (polyimide) that wraps around the inner circumference of a ring Two gold-finished contact pads on the flex section that interface with the user’s finger A rigid PCB section that connects to the flex and hosts electronics Scope of work: Design a single-piece rigid-flex PCB Flex section with exposed ENIG pads (dimensions and spacing will be provided) Proper coverlay usage and manufacturable rigid-flex stack-up Clean routing of high-impedance analog signals from flex to rigid section Mechanical alignment features and reliable rigid-flex transition Requirements: Proven experience...

I need an experienced electronics/PCB engineer to design a reliable, 24/7-operating traffic light controller PCB. This is a safety-critical system (not a hobby project). SYSTEM: • MCU: ESP32 • Load: 220VAC traffic light LED modules • Outputs: ~19 relay-controlled channels • Operation: Continuous (24/7) RELAY CONTROL: • Relay outputs driven via 74HC595 shift registers (SPI-style) • 3 × 74HC595 chained • OE pin must have hardware pull-up (outputs OFF at boot) • ESP32 enables outputs only after startup • Relay drivers with proper flyback protection FAILSAFE / SAFETY: • Master relay/contactor that cuts power to ALL lamp outputs • Must drop on: - ESP32 crash - Watchdog timeout - Power instability • Safe power-up and fail...

I need an engineer to take my concept for a high-voltage DC-DC converter and translate it into a complete, build-ready design that slots straight into a renewable-energy storage setup. The converter will accept 24 V DC at the input and deliver a regulated 165 V DC output. Efficiency, thermal management, and long-term reliability matter far more to me than squeezing every last cent out of the BOM, so component quality and sound topology choices come first. You will own the full electrical design flow—topology selection, key-component sizing, magnetics specification, control strategy, and all supporting calculations. I expect LTspice or an equivalent simulation environment to demonstrate stability, transient response, and efficiency before we move on to hardware. Once the numbers look...