Electrónica Jobs

Necesito un modelo funcional en TinkerCAD que represente una estación automatizada de control de nivel de tanque. El sistema debe: • Utilizar un sensor de presión para leer el nivel. • Activar un relevador que encienda una bomba (motor) cuando el nivel baje del umbral configurado. • Mostrar el estado mediante un LED RGB: rojo cuando la bomba está activa, azul cuando está inactiva y verde cuando el nivel se encuentra dentro del rango deseado (modo espera). Entrego el umbral inicial, pero quiero que quede documentado dónde ajustarlo en el código Arduino. El proyecto final debe incluir: 1. Esquema de cableado completo y limpio dentro de TinkerCAD. 2. Código Arduino claramente comentado. 3. Enlace público al c...

# TECHNICAL REQUIREMENTS ## VHF SAME Receiver and AFSK/FSK Demodulator **Document:** RT-RF-SAME-001 **Revision:** 1.1 **Application:** EAS-SAME/SASMEX Signal Receiver **Target Frequency:** 162.425 MHz **Operating Band:** 162.400–162.550 MHz --- ## 1. OBJECTIVE Design and develop an electronic module capable of receiving the VHF signal at **162.425 MHz**, demodulating the NFM transmission, recovering the baseband signal, and demodulating the **AFSK/FSK data used by SAME (Specific Area Message Encoding)**. The module shall cover the complete signal chain: **Antenna/RF Input → RF Filtering → VHF Receiver → NFM Demodulation → Baseband Conditioning → AFSK/FSK Demodulation → Digital DATA_OUT** The final output shall be ready for connection to an extern...

I need a concise, production-ready program written in WPLSoft for a Delta DVP-series PLC. The sole objective is to automate a manufacturing process that is currently handled manually, so the logic must cover all machine sequences, safety interlocks, start/stop routines, and alarm handling. You will receive a full I/O list, basic wiring diagram, and the intended sequence of operations the moment we start. Your task is to translate that sequence into ladder logic (or sequential function chart if you prefer) inside WPLSoft, simulate it to prove the timing, and then provide the downloadable .DVP project along with a brief commissioning guide so my on-site technician can load, test, and fine-tune it. Key expectations • Program must be created in WPLSoft and match the Delta DVP comm...

I want a fully flyable eVTOL model inside X-Plane that I can use to train future pilots of a Part 103-compliant ultralight. The aircraft has eight electric motors and is steered with two independent joysticks—one dedicated to ascent/descent plus turning, the other to forward/reverse and roll—with a hands-off hover mode in between. The heart of the job is getting the flight dynamics right. I need the model to reflect true ultralight behaviour under the Part 103 envelope while accurately blending the thrust from all eight rotors. Control response on both sticks must feel natural and symmetrical so that student pilots can translate hours in the sim directly to the real seat. You are free to use Plane-Maker, X-Plane’s Experimental Flight Model, custom data-refs, or a pl...

I'm seeking an experienced PLC programmer to develop a program for Automation Direct PLCs. The primary task of this program will be motor control, essential for our machine control operations. Key Requirements: - Expertise in Automation Direct PLCs - Proficient in motor control programming - Experience in industrial automation, specifically in machine control contexts Ideal Skills and Experience: - Strong background in PLC programming - Familiarity with Automation Direct software and hardware - Previous projects involving similar motor control tasks Please provide samples of related work and a brief outline of your approach. Looking forward to your bids!

I need a skilled programmer to develop product in (Mindmotion, HOLTEX). Key Requirements: - Program PIC microcontrollers - Ensure reliablity - Collaborate on system integration Ideal Skills: - Expertise in programming - Experience - Strong background in wireless communication systems

We are looking for experienced KiCad users and developers to test our open-source KiCad plugin. What you will do: Find and recruit experienced KiCad users/developers. Share our plugin with relevant KiCad users. Ask them to install/import and actually use the plugin in KiCad. Collect their feedback after testing. Record any bugs, installation issues, usability problems, or suggestions for improvement. Provide us with the testers' feedback and basic information about their KiCad experience. Plugin: Target users: Experienced KiCad users KiCad developers PCB/electronics designers who regularly use KiCad The goal is to get real-world feedback from experienced KiCad users and identify potential issues and improvements. Please only recruit people who are genuinely able to install and t...

I need a Verilog-HDL RAM module that meets an already defined specification. The core requirement is a synchronous memory unit with reliable read/write control. Beginning from the RTL, I want clean, synthesizable code, followed by a self-checking testbench that proves functional correctness across corner cases. Your workflow should include: • RTL implementation of the RAM with parameterised depth and width • A functional testbench that drives realistic stimuli and automatically flags mismatches • Simulation runs in ModelSim or an equivalent simulator, with waveform capture for review • Iterative debugging until the waveforms reflect the expected behaviour • Concise documentation explaining interface signals, timing, and any design decisions Address decodi...

I am building a proof-of-concept rover whose only job is to prove that controlled, repeatable motion is possible inside transformer oil. To make that happen I need a complete blueprint package—detailed engineering drawings rather than a simple overview—showing exactly how to propel, steer, and recover a small test vehicle submerged in this highly viscous fluid. Rather than propellers, tracks, or wheels, I want the craft to move by exploiting buoyancy. Your design should use the density difference between the rover and the oil to generate thrust and directional control. This should not create any bubbling in oil while movements. Critical elements of the buoyancy control system that must appear clearly in the drawings • Adjustable weights • Air / water pumps Ev...

HLS / FPGA Developer – Low-Latency Algorithmic Trading We are looking for an experienced HLS / FPGA Developer to join our team and work on the development and hardware acceleration of high-performance stock trading strategies. The ideal candidate should have strong hands-on experience in FPGA architecture, RTL design, HLS, high-speed interfaces, and low-latency data processing, with an interest in applying these skills to algorithmic trading. Key Responsibilities • Develop and optimize low-latency trading strategies and market-data processing pipelines on FPGA. • Translate trading algorithms into efficient RTL/HLS implementations. • Design and optimize FPGA architectures for ultra-low-latency and deterministic execution. • Develop high-throughput streaming data pa...

I’m looking for a qualified electrical engineer to take my project from concept to a complete, permit-ready set of drawings. At this stage I only have the overall idea; there are no existing sketches or schematics you need to follow, so you’ll be able to recommend the best approach from the ground up. Here’s what I expect you to handle: • Discuss the scope with me (residential, commercial or industrial—still open) and establish the load requirements. • Produce a full set of single-line and wiring diagrams, panel schedules, load calculations and a bill of materials that meet the applicable NEC/IEC standards. • Include clear notes for lighting layouts, power distribution points and all branch circuits once we decide which areas I’m prioritisi...

Creative Automatic Rubik's Cube Solver I'm looking for a creative solution to build an automatic device that solves Rubik's cubes. It should be a visually interesting and well-crafted piece suitable for display on a table or shelf. The final delivery is a working machine delivered to me in the UK. Scope of work - Design an automatic Rubik's cube solver without direct drive face turners - Incorporate robotic arms, bionic hands, or complex mechanical solutions - Ensure the device is well-finished and decorative - Use metal parts where possible, avoiding cheaply made components - Create an engaging process for solving the cube where speed is not essential -The device needs to be stand-alone; no reliance on mobile phones or laptops, etc for vision or computation Refer...

Self-Solving Rubik's Cube Build Overview I'm looking for help building a self-solving Rubik's cube based on a project example I found online. I need the final product to be fully functional and nicely finished. Delivery of the finished product to the UK Scope of work - Build a self-solving Rubik's cube similar to the Smart3 project - Ensure the cube is fully functioning and nicely finished - Include replaceable or rechargeable battery feature References - See reference at Delivery format Physical delivery

I need specialized capacitive touch sensor cables for indoor use. Key requirements: - Manufacturing of touch sensor cables, specifically capacitive type. - Cables should be durable and reliable for indoor environments. Ideal skills and experience: - Expertise in sensor cable manufacturing - Knowledge of capacitive touch technology - Experience with indoor-use industrial standards and requirements Please provide samples of similar work and estimated delivery time.

Request for a Custom Pre-Configured CAN/CAN-FD Gateway for EV BMS Development and Testing I would like to request a quotation for a complete, standalone CAN/CAN-FD gateway system. I am looking for a device that can be connected between the vehicle and the OBD connector using an OBD interposer, and that can operate independently without a PC using pre-loaded configurations. The main purpose of the system is development and testing of battery/BMS CAN communication in electric vehicles. The vehicles I would like to support are: * Tesla Model 3 * Tesla Model Y * Kia e-Niro * Hyundai Kona Electric * Volkswagen ID.3 * Volkswagen ID.4 I will provide the exact model years for each vehicle at the beginning of the project. Required functionality * At least 2 independent CAN/CAN-FD channels *...

Quero centralizar todo o controle de cargas do meu veículo em um PDM simples, alimentado a 12 V, que use: • 8 relés ISO de 30 A • 2 relés mini de 20 A • Fusíveis individuais para cada saída O módulo precisará comandar motores, luzes e atuadores diversos, então a disposição das trilhas deve suportar picos de corrente contínua sem aquecimento excessivo e contemplar boa separação entre linhas de potência e sinais de acionamento. Já possuo um briefing com dimensões, referências de pinagem e alguns exemplos de projetos semelhantes; envio assim que iniciarmos para você tomar como base. Minha expectativa é receber: 1. Esquema elétrico co...

I'm looking for a developer to create a simple, three-level game inspired by Angry Birds. Key Requirements: - The game should be designed for Raspberry Pi. - It needs to have a cartoonish art style. - The game will be controlled using a game controller. - At the end of the game, based on the player's score, the game should send pulse-mode commands from the Raspberry Pi to another hardware component. Ideal Skills and Experience: - Experience with game development on Raspberry Pi. - Proficiency in cartoonish graphics design. - Familiarity with game controller input handling. - Knowledge in programming pulse-mode commands. Please share your relevant experience and approach.

Development of an OCR-Based Industrial Vision System using NVIDIA Jetson Orin Nano About Us We are an industrial automation company specializing in robotic palletizers, case packers, end-of-line automation and custom machinery. We are building a reusable machine vision platform, and this OCR project is Phase 1. Project Objective Develop a robust OCR application for NVIDIA Jetson Orin Nano using a camera to read printed alphanumeric characters. The architecture should be modular and reusable for future barcode, QR, AI inspection and robot guidance applications. Hardware Platform  NVIDIA Jetson Orin Nano Developer Kit  Raspberry Pi HQ Camera (Sony IMX477) or equivalent CSI camera  LED illumination  C-Mount Lens  Future migration to Basler industrial camera Scope of Work Camera Integrat...

Design and build a three-phase, 50 V / 30 A SPWM inverter tailored for an induction motor. The work spans the complete hardware chain—schematic capture, PCB layout, power stage assembly, and gate-drive/protection circuits—plus the firmware that drives it. Either a PIC32 or STM32 can sit at the core; choose whichever lets you deliver stable, low-jitter PWM with minimal dead-time distortion. Firmware targets • Closed-loop speed control with a user-selectable frequency range of 0–250 Hz • Parameter entry and live monitoring over UART, USB, or CAN (pick one to keep the bill of materials lean) • Safe-start, over-current, and over-temperature trips baked into the interrupt flow Deliverables 1. Complete schematics (Altium, KiCad, or other mainstream CAD)...

2-Layer PCB Design – EMI/EMC-Oriented Power Supply & ESP32 We are looking for an experienced Altium Designer PCB Engineer to design a 2-layer PCB for a Power Supply and ESP32-based control system. The PCB design will be based on the provided Power Supply schematic and ESP32 schematic, along with the existing PCB Gerber, NC Drill files and PCB images for reference. The PCB must be designed with a strong focus on EMI/EMC performance, including proper grounding, power distribution, buck-converter layout, high-current routing, thermal management and separation of noisy power/motor sections from the ESP32 and sensitive signal sections. Key Requirements: 2-layer PCB Altium Designer EMI/EMC-oriented PCB layout ESP32-WROOM-32 and A4988 motor-driver section 5V and 3.3V power sections...

I’m developing an electromechanical product whose performance hinges on a well-engineered power system. I need an engineer who can take ownership of everything from initial concept through to verified schematics and simulation results. Typical tasks will include specifying components, sizing converters, modelling load profiles, running fault analyses, and confirming compliance with international safety standards. When you reply, focus on the depth and relevance of your experience in power-system design for electromechanical applications—show me projects where you have already balanced efficiency, thermal limits and cost, ideally using tools such as MATLAB/Simulink, ETAP or similar. The first milestone will be a concise design brief outlining the proposed topology, key cal...

I’m developing an electromechanical product whose performance hinges on a well-engineered power system. I need an engineer who can take ownership of everything from initial concept through to verified schematics and simulation results. Typical tasks will include specifying components, sizing converters, modelling load profiles, running fault analyses, and confirming compliance with international safety standards. When you reply, focus on the depth and relevance of your experience in power-system design for electromechanical applications—show me projects where you have already balanced efficiency, thermal limits and cost, ideally using tools such as MATLAB/Simulink, ETAP or similar. The first milestone will be a concise design brief outlining the proposed topology, key cal...

I’m developing an electromechanical product whose performance hinges on a well-engineered power system. I need an engineer who can take ownership of everything from initial concept through to verified schematics and simulation results. Typical tasks will include specifying components, sizing converters, modelling load profiles, running fault analyses, and confirming compliance with international safety standards. When you reply, focus on the depth and relevance of your experience in power-system design for electromechanical applications—show me projects where you have already balanced efficiency, thermal limits and cost, ideally using tools such as MATLAB/Simulink, ETAP or similar. The first milestone will be a concise design brief outlining the proposed topology, key cal...

I'm seeking an experienced PCB designer to create a Bluetooth-connected PCB for a fingerprint lock. This PCB will not only facilitate Bluetooth mobile connectivity but also serve as a remote control interface. Key Requirements: - Primary function: Bluetooth connectivity along with mobile connectivity - Remote control functionality for: - Locking and unlocking the fingerprint lock - Adding administrators - Adding clients Ideal Skills and Experience: - Proficiency in PCB design and Bluetooth integration - Experience with mobile connectivity modules - Knowledge in secure remote control systems - Familiarity with fingerprint module communication protocols and a related mobile application Please include relevant experience in your bids. Looking forward to your proposals!

Preciso desenvolver uma placa eletrônica que atue como módulo de distribuição de potência (PDM) para um novo protótipo automotivo. O foco é disponibilizar canais de acionamento de cargas de 12 V, protegidos por drivers adequados, e garantir comunicação plena pela rede CAN do veículo. O que espero receber: • Esquemático completo com componentes automotivos (drivers high-side/low-side, proteção contra inversão de polaridade, filtro EMC). • Layout da PCB em camadas apropriadas para ambientes veiculares, com trilhas dimensionadas para até 30 A nos canais principais. • Arquivos Gerber, BOM detalhada e arquivo de pick-and-place. • Firmware de demonstração simp...

This project calls for a clean, production-ready multilayer PCB for a multi-mic prototype card for use in development. The schematic is done and an initial attempt at component layout has been made, both in easyeda pro. schematic pdf attached. Due to clock and signal fan-out constraints, and power supply layout constraints, need help in completing the actual PCB design. The board has 32 PDM microphones (x,y coordinates fixed) whose data are converted to TDM and sent off board via connector. The TDM clocks come in on the same connector. The board has a 3.3V buck-boost sourced with 5V from a battery connector. The 3.3V is used to power some ICs and is input to a 1.8V LDO for dual-powered ICs. Please apply your preferred professional tool—Altium Designer, KiCad, or Eagle are all acce...

I am building a small-scale oil-handling package and need a Siemens PLC program that keeps product moving efficiently while making sure tanks never run dry. The core of the job is to write, test, and document logic that optimises flow, pulls accurate readings from our flow sensors and low-level sensor, and then drives the valves, pumps, and any other actuators that respond to those readings. Everything must tie neatly into the HMI; I’d like operators to have both a touchscreen view and a secondary PC or hard-key option so they can work comfortably from the panel or the control room. The system’s sole purpose is process optimisation, so response time and deterministic behaviour are critical. I am already committed to Siemens hardware (S7-1200 series with a basic comfort panel) ...

JP Visual Ads – Kanchipuram is looking for an experienced LED Video Wall Technician on a PROJECT BASIS. This is NOT a full-time job. We will contact the technician whenever we receive a customer order or LED video wall project. The technician should be available to come to the project site when required and complete the installation, setup, operation, troubleshooting and dismantling work. LOCATION: We prefer technicians based in Kanchipuram or Chennai, or nearby areas who can travel to Kanchipuram/Chennai project locations when required. WORK REQUIREMENTS: * LED video wall installation and dismantling * Mounting LED panels/modules and building the required frame * Power and data cable connection * Processor/controller setup and configuration * Basic LED display troubleshooting * S...

I’m building an industrial-grade robotic setup and need a sharp embedded-systems mind to move the control electronics from concept to reliable hardware-in-the-loop operation. The work centres on firmware that drives motors, interprets sensor data and communicates over CAN bus or OBD-II–style diagnostics. Most of the prototyping will happen on Arduino or ESP32 boards before we freeze the design onto a custom PCB, so familiarity with Altium Designer or KiCad for schematic capture and layout is essential. Here’s how I see the collaboration flowing: • Translate high-level motion requirements into C/C++ firmware with clean, well-commented code. • Select, integrate and tune motor drivers, encoders and safety interlocks so the robot meets industrial-speed repeatab...

I have an Allen-Bradley CompactLogix processor installed at my facility in Ridgefield, NJ 07657 and I need a ladder-logic program that fully automates our conveyor line system. The goal is straightforward: once the operator presses START the line should sequence itself, react to its sensors, and shut down safely on faults or an E-Stop, all while remaining easy to troubleshoot. Hardware and software already on hand: 1- allen bradley 5069 l330er • CompactLogix controller with standard 24 V DC I/O cards • A mix of photo-eyes, limit switches and VFD-driven motors • Studio 5000 Logix Designer for programming What I expect from you • A clean, well-commented .ACD project file written in ladder logic • Tag database and I/O map that match my wiring • Brief...

Project Title MATLAB/Simulink Tutor Needed for PMDC Motor, Fan Load and PID Control Project Project Description I am looking for an experienced MATLAB/Simulink tutor to provide technical guidance for a university electromechanical systems project involving a permanent-magnet DC (PMDC) motor, an industrial fan load, and PID speed control. This is a tutoring and technical-support project. I must personally complete and submit the assessed work. The freelancer should explain the modelling process, help identify errors, review my independently prepared model and results, and provide constructive feedback. The freelancer must not write or submit the final assessed report on my behalf. Topics Covered The project includes: Developing a PMDC motor model in Simulink from its electrical and mechanic...

More details: What type of electrical project do you need a cost estimation for? Commercial What information should successful freelancers include in their application? Past work What specific aspects of the commercial project do you need cost estimation for? Full class B cost estimation

4-Layer ESP32 Hardware Optimization, LTspice/ANSYS Thermal Simulation & Production PCB Package ******Project Budget is 30-60 USDS Best offer within this budget wins.******** IMPORTANT: NO PLACEHOLDER BIDS, Proposals starting with generic templates or placeholder quotes will be immediately declined and reported. To prove you have read and understood the entire project scope, your proposal MUST start with the exact phrase: HARDWARE-EXPERT Project Overview: We are seeking an expert Senior Embedded Hardware / PCB Design Engineer to finalize, simulate, optimize, and release a high-reliability, 4-layer ESP32-based industrial electronic system. This project demands strict adherence to engineering standards, component lifecycle management, galvanic isolation, and rigorous...

Need PHD guidance for student of VLSi on Optimization of Hetro junction Tunnel field effect Transistor for nano VLSI applications. From identifying Research Gap to final results. Work to be carried out in Silvaco Tcad

I'm seeking an experienced engineer to design a high voltage (HV) module. The module will convert 12V DC to 15kV with a current under 500 microamperes. Key Requirements: - Input: 12V DC - Output: 15kV - Current: Under 500µA - Voltage Regulation: Moderate precision - Form Factor: Custom size to fit specific industrial machinery Ideal Skills and Experience: - Expertise in high voltage design - Experience with voltage regulation techniques - Proficiency in custom electronics design - Background in industrial machinery applications Please provide samples of similar projects you've completed.

I have a Particle Boron and want it turned into a small proof-of-concept that watches two reed switches and a single split-core current transformer. Whenever either switch changes state or the CT reports a reading outside user-defined limits, the Boron should push an SMS straight to my phone. Please build the firmware, wire the sensors, and set up the cellular messaging so the text includes three key pieces of information whenever a condition is met: the live state of each reed switch, the measured current, and a timestamp noting when the limit was crossed. I also need your guidance in deciding the actual thresholds for both the switches and the current transformer, so factor parameter-setting into the workflow. A concise wiring diagram, commented source code ready for Device OS, and a q...

Assalam o alaikum, I am looking for Electrical & Electronics Engineers from PAKISTAN to be a part of my team and work on multiple tasks related to Circuit design, Embedded Systems, Control Systems, Power Systems etc. Applicants should have strong expertise in following softwares' Proteus Multisim TinkerCAD MATLAB/SIMULINK Applicants should have good expertise in writing short and long reports e.g. Final Year Project Reports. You should be well aware of Plagiarism Policies for writing technical documents.

I have a piezo-based wet/dry sensor concept that relies on tracking resonance changes in a PZT ceramic between 20 kHz and 500 kHz. When the tip is in air the vibration is high-Q with a large voltage swing; when any liquid covers it the amplitude drops, the Q-factor falls, and both phase and resonant frequency shift. I now need an electronics specialist who can turn this working principle into a repeatable, field-ready solution. The job covers selecting the drive topology, designing the analog front-end, and implementing a small digital section that continuously excites the ceramic, samples the returning signal, and decides “wet” or “dry” in real time. Accuracy, low noise, and robust thresholding against temperature or viscosity changes are essential. Delive...

I have a Particle Boron and want it turned into a small proof-of-concept that watches two reed switches and a single split-core current transformer. Whenever either switch changes state or the CT reports a reading outside user-defined limits, the Boron should push an SMS straight to my phone. Please build the firmware, wire the sensors, and set up the cellular messaging so the text includes three key pieces of information whenever a condition is met: the live state of each reed switch, the measured current, and a timestamp noting when the limit was crossed. I also need your guidance in deciding the actual thresholds for both the switches and the current transformer, so factor parameter-setting into the workflow. A concise wiring diagram, commented source code ready for Device OS, and a q...

I’m upgrading my house to a fully connected smart-home and need an experienced electrician who is comfortable with residential automation from the breaker panel right through to the phone app. Scope of work • Smart lighting • Security systems (cameras, sensors, alarms) • Climate control (thermostats, smart vents, HVAC integration) • Any additional automations you believe will improve convenience or energy efficiency The job starts with a review of my current wiring and a clear plan for how the new low-voltage and mains runs will coexist safely. I expect neat cable management, labelled circuits, and compliance with all local codes. You’ll specify the hubs, switches, relays, and controllers—whether that ends up being KNX, Lutron, Zigbee/Z-Wave,...

# Custom PCB Design for Camera Smart Glasses I am looking for an experienced **embedded hardware/PCB designer or engineering firm** to design a complete PCB for camera-equipped smart glasses capable of **still photo capture and live video streaming**. ## SoC The designer can select the most suitable SoC from: * **Allwinner V821** * **Rockchip RV1103** * **Rockchip RV1106** Please recommend the best option based on **camera/MIPI support, power consumption, thermals, USB capabilities, software/SDK support, availability, and PCB complexity**. Reference designs that may be used include **LicheeRV Nano, Luckfox Pico Mini, and Avaota F2**. ## Core Requirements * Single onboard **Sony IMX or equivalent camera**, minimum 1080p * MIPI CSI-2 camera interface * Still photo capture + live vide...

I need a skilled PLC programmer to develop a control system for an oil project. The PLC will be a Siemens model and will handle flow control and low-level sensing. Key Requirements: - Flow control management - Low-level sensor integration - Interface with sensors, actuators, and HMI Ideal Skills and Experience: - Proficiency in Siemens PLC programming - Experience with flow control and sensor integration - Familiarity with HMI and actuator interfacing Please provide relevant experience in your bids.

I’m midway through a personal project and need a seasoned Python mind to guide me from solid intermediate skills to confident, production-ready code. I’m looking for help that spans the full spectrum: refining my grasp of core syntax, strengthening advanced design patterns and optimisation techniques, and making better use of popular libraries and frameworks that fit the project’s needs. Here’s what I have in mind: • Regular, live coaching sessions where we review my code, untangle issues, and discuss best practices. • Clear homework or mini–milestones so I can apply what we cover right away. • Practical walkthroughs of any libraries we decide to incorporate, plus advice on structuring the overall solution. The end goal is to ship this pro...

Hi,I am building the DefendX Tactical Smartwatch. I need an expert hardware engineer to design the board completely from scratch—starting with component selection and schematics, all the way through 4-layer PCB layout and physical lab testing. Project Requirements (42×42 mm, 4-Layer Board): Core: ESP32-S3 (Compact module like the MINI series). Radios: Wi-Fi/BLE, Sub-GHz LoRa (e.g., SX1262), and GPS (e.g., SIM68M). Sensors: Biometrics (HR/SpO2 + Temp) placed wrist-facing on the bottom layer, plus a 9-axis IMU and Compass. Power & Storage: LiPo battery management (with a central cutout pocket on the PCB for the battery) and SPI NOR Flash. Your Scope of Work: BOM Selection: Pick reliable components that are actively in stock at JLCPCB/LCSC. Schematics: Design the ...

I’m bringing an MLX90614 infrared temperature sensor into an ESP32-based design and need a clean, ready-to-flash solution that covers three essentials: accurate temperature readings, an immediate on-screen display, and reliable data logging. The job breaks down into two parts. First, document the wiring so I can reproduce it quickly—pin map, I²C pull-ups, and power considerations for the 3 V rail. Second, supply well-commented Arduino-compatible code (ESP-IDF is fine if you prefer) that: • polls the MLX90614 at a reasonable interval • streams both object and ambient temperatures to the Serial Monitor (or an OLED/Nextion screen if you think that’s cleaner) • stores each reading with a time stamp to SPIFFS or a micro-SD card—your call, as l...

I have a junior engineer building the early schematics for an asset-intelligence prototype and I need an experienced embedded-systems specialist to guide the hardware design, write the firmware, and get the first units reliably streaming data to the cloud. The boards must interface with temperature, pressure and motion and more sensors, carry out real-time analysis, perform basic filtering, then aggregate and compress the packets before they leave the device. Security on the wire is non-negotiable, so please be comfortable implementing encrypted transport and key management on resource-constrained MCUs. You will collaborate directly with us on: • Selecting the optimal MCU / wireless stack and finalising the schematic • Integrating the three sensor types and validating their ...

I already have a finished schematic and need it turned into a clean, production-ready two-layer board using KiCad. The goal is to squeeze the circuitry into the smallest footprint you can achieve while still respecting good layout practice, clear labelling and standard fabrication limits (0.2 mm trace / 0.3 mm via or better). Along the way please: • Follow KiCad 7.x (or later) so the files open smoothly on my end. • Keep component placement logical for hand or machine assembly; all polarized parts should have their orientation clearly silkscreened. • Route with balanced trace lengths where signals require it, add ground pours on both layers, and include generous test points for key nets. • Run electrical-rule and design-rule checks before handing the job off....

I'm seeking an experienced PCB designer to create a complex, multi-layer schematic for an industrial radio. The schematic will incorporate analog, digital, and mixed-signal components. Key requirements: - Design complex, multi-layer PCB schematics - Incorporate analog, digital, and mixed-signal components - Experience with industrial equipment is a plus - Proficiency in PCB design software (e.g., Altium, Eagle) Ideal candidates will have a strong background in electronics and a proven track record in similar projects. Please provide samples of previous work.

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 need an experienced PCB and embedded engineer who can turn those requirements into production-ready hardware and firmware. The job covers the full design flow: capturing the schematic, creating the PCB layout with attention to thermal paths and EMI, selecting components for efficiency and availability, and writing the embedded code that supervises voltage rails, fault flags, and soft-start logic. I expect good engineering practices—proper net-naming, clear documentation, and design files that open without issue in KiCad or Altium. Deliverables • Complete schematic (PDF + source) • PCB layout files and Gerbe...

I need a freelancer to help locate the source of radio signal interference in an urban environment. Requirements: - Use triangulation techniques to pinpoint interference source - Work in complex urban settings with potential obstructions - Provide detailed reports on findings Ideal Skills: - Experience with radio frequency (RF) technology - Familiarity with urban signal behavior - Strong analytical and reporting skills