อิเล็กทรอนิกส์ Jobs

i am looking for an engineer in power electronic who has some experience with F280039c or stm32g474 or esp32 to make a spwm for full h bridge inverter ( pedagogic )

Necesito un esquema electro neumático básico para una cortadora de disco. Quiero algo sencillo y claro, únicamente el diagrama esquemático sin instrucciones detalladas ni etiquetas extensas. El circuito debe mostrar: • Sensores implicados en la detección de posición o seguridad. • Actuadores que moverán los mecanismos de corte. • Controladores necesarios para coordinar ambas partes. No tengo preferencia por la herramienta de dibujo; puedes usar AutoCAD, SolidWorks, Tinkercad u otra siempre que el resultado sea legible y exportable a PDF y a un formato editable. Entregarás el archivo fuente y el PDF final. Busco precisión en la representación de las conexiones y la simbología normalizada.

I'm seeking a skilled PLC programmer to develop a control system for an ammonia refrigeration setup. The system will manage: - Compressor start/stop and capacity control - Condenser fan and pump control - Evaporator cooling and defrost control Requirements: - Control of the complete system (compressors, fans, pumps, evaporators) - Integration with existing setup (basic schematics provided) - Only 120 volt control of starters and related equipment is needed Ideal skills and experience: - Proficiency in PLC programming (Siemens, Allen-Bradley, or Schneider Electric) - Experience with refrigeration control systems - Ability to read and interpret basic schematics - Electrical engineering background is a plus Please provide relevant experience and approach to the project in your bids.

I am looking for an experienced electronics engineer to review a completed schematic for an automotive project before moving to PCB layout. The system is designed for use in a vehicle (12V/24V environment) and consists of multiple interconnected modules. The design includes: ESP32-based control system I2C communication between modules MCP23017 I/O expander LM393 comparators for sensing 12V/24V signals Input protection (TVS diodes, resistor dividers, filtering) RJ45 connectors used for inter-module communication Indicator LEDs (including I2C activity via transistor drivers) What I Need A detailed schematic review to: Verify all circuits function as intended Check component values and design choices Identify any design flaws or risks (especially automotive-related) Confirm correct inter...

Electrical Engineer — Data Center Infrastructure (Estonia, on-site) Role: Electrical Engineer / Data Center Infrastructure We are building a micro data center in Estonia (100–200 kW) and looking for an electrical engineer to take full responsibility for the electrical design, calculations, and on-site execution. This is an on-site role in Estonia. Remote-only is not an option. Responsibilities Design electrical schematics (power, wiring, single-line diagrams) Calculate power loads, cable sizing, protection and control systems Select appropriate equipment (switchgear, UPS, transformers, distribution panels) Prepare technical specifications, BOQs, and installation documentation On-site supervision, testing, commissioning, and fault diagnostics Ensure compliance with local ...

Design and Development of an Active Rectifier for Performance Enhancement of Induction Generator Based Wind Energy Conversion System

I have Virtual DJ and Djay Pro running smoothly—my mic is live, the main sound is reaching the audience—but I still can’t preview tracks in my Bluetooth headphones before they hit the master output. Because I’m working strictly inside the software with no external controller or mixer, I need someone who knows the internal routing menus, aggregate devices, and audio settings inside both programs to jump in and set this up right away. The goal is simple: cue audio must play exclusively in the headphones while the master keeps streaming as it does now. A short remote session (Zoom, AnyDesk, or similar) that walks me through the exact settings, channel assignments, and any necessary aggregate-device tweaks will be perfect. Acceptance criteria: • Bluetooth h...

I have Virtual DJ and Djay Pro running smoothly—my mic is live, the main sound is reaching the audience—but I still can’t preview tracks in my Bluetooth headphones before they hit the master output. Because I’m working strictly inside the software with no external controller or mixer, I need someone who knows the internal routing menus, aggregate devices, and audio settings inside both programs to jump in and set this up right away. The goal is simple: cue audio must play exclusively in the headphones while the master keeps streaming as it does now. A short remote session (Zoom, AnyDesk, or similar) that walks me through the exact settings, channel assignments, and any necessary aggregate-device tweaks will be perfect. Acceptance criteria: • Bluetooth h...

Freelancer Requirement: Design & Development of Long-Range Electric UAV (Stealth Capable) We are seeking an experienced UAV design and embedded systems expert/team to collaborate on the end-to-end development of a long-range electric drone with advanced capabilities. Project Overview We are building a high-endurance unmanned aerial vehicle (UAV) with the following target specifications: Flight Time: ~16 hours Payload Capacity: 5 kg Base Weight (without payload): ~45 kg Propulsion: Electrically powered (Single fan propulsion system) Configuration: Fixed-wing / hybrid (open to expert recommendations) Special Requirement: Low observability / radar signature reduction (stealth-oriented design) Should have AI capabilities to take decision Purpose : Survillance Scope of Work 1. UAV D...

I have an industrial-grade machine that is currently down, and I need someone who can quickly diagnose the fault, repair or replace the defective electronic components, and return the unit to full, reliable operation. You will be working on site with three-phase power circuits, control boards, and sensor wiring, so solid experience with industrial electronics, test instruments (multimeter, oscilloscope, continuity testers), and safe lock-out/tag-out procedures is essential. Scope of work • Trace and confirm the root cause of the failure • Source or specify compatible replacement parts • Carry out the repair, re-assemble, and calibrate the system • Run functional tests under load and document the results Deliverables 1. A short diagnostic report (fault found, par...

Low Power, High Speed,Area Efficient Multiplier based on the PTL logic style is the project title.I have to implement using cadence virtuoso.

Dear Team, Requirements: Mobile phone charger Input' wall mount - universal Output: USB-A BC1. 2 and USB-C PD3. 0 Power: 20W USB Type C PD: IEC 62680-1-2/3 comiance is a must USB Type A legacy port Interoperability : IEC 63002 compluance is a must USB-IF compliance is a must Dynamic power sharing CE and FCC EMC compliance is a must according EN 55032/5 Effeciency: EU CoC Tier2 Tast transient responce is a must Regulation 5% @ max load Reinforeced isolation Safty compliance according IEC 62368-1 is a must Environment: working temprature >80 C Board size:30x35mm Deliverables : Full Schematic Design using Cadence or Altium only Full PCB design : Using Cadence or Altium only Circuit simulation using PSpice or LT spice Full mathematical modeling, including transfer functiobs and comp...

I need a surface-mount power-supply board designed for a consumer-electronics product. The board will run directly from 220–260 V AC and must deliver a regulated 144 V DC at 300–350 mA. Reliability is critical, so the design has to meet a 6 kV surge requirement, include both high- and low-voltage protection, and achieve a high power factor. I already know the exact outer dimensions for the PCB and will forward the drawing as soon as we start; everything has to fit inside that footprint. Apart from those limits, component placement is up to you. I’m leaning toward standard FR-4, but I’m open to alternatives if you see a clear advantage. Please supply the complete schematic, PCB layout, Gerber files, an annotated BOM with part numbers available from major distributo...

I’m developing a compact, aluminium-clad SMD PCB that will live directly on mains, so every detail must be right first time. The board sits on 1 mm aluminium with 25 µm copper, accepts 220-260 VAC and has to deliver a rock-solid 144 VDC at 300-350 mA. Power-factor must stay high thanks to a hybrid DOB topology, while the protection network must survive 6 kV surges and automatically cut in on both high- and low-voltage events. Everything must be RoHS-compliant. Because the board ultimately feeds a power-supply module, thermals and creepage/clearance are just as critical as the electrical design. I’m looking for a clean, production-ready package that lets me hand Gerbers straight to my fabricator and have parts placed with confidence. Deliverables • Complete schema...

I need a complete engineering solution for an ultra-low-frequency electromagnetic transmitter that operates at roughly 22 Hz and fits inside an inline pipeline PIG. Once the PIG is in service, the beacon’s field must be strong enough to be detected up 3–5 m above the pipe, even when the signal has to pass through steel wall, backfill, soil, and asphalt or reinforced concrete. All operations take place underground and fully enclosed by steel, so coil geometry, core selection, drive strategy, and noise rejection are critical. Scope of Work: • Design a low-frequency (~15–30 Hz, target 22 Hz) EM transmitter • Optimize signal strength for underground detection • Develop efficient antenna/coil design suitable for pipeline use • Design low-power circuitry fo...

Project Title: Plant Care System using Delta PLC Project Description: I am looking for an expert in Automation and PLC (specifically WPLSoft / Delta PLC) to deliver a complete project from A to Z. The project title is "Plant Care System using PLC". I need a full package that includes the following 13 items: 1. ABSTRACT: A clear summary of the project. 2. INTRODUCTION TO EMBEDDED SYSTEMS: (Specific to PLC-based systems). 3. BLOCK DIAGRAM: Showing the system architecture. 4. HARDWARE REQUIREMENTS: List of all parts needed. 5. CONTROLLER SPECIFICATIONS: Details about the Delta PLC used. 6. COMPONENT SPECIFICATIONS: Datasheets for sensors (Moisture, Temp, etc.) and actuators. 7. SOFTWARE REQUIREMENTS: (WPLSoft, ISPSoft, etc.). 8. CIRCUIT DIAGRAM: Clear wiring/schematic diagram. 9. C...

I am building a battery-powered edge node around the STM32WL (LoRa-E5 module) that must sit in the field for years on a single 5 000 mAh cell. To reach that target I need both the hardware design and the accompanying firmware created with an obsessive focus on nano-amp sleep currents and efficient duty-cycling. Core capabilities • Data logging to internal flash or external EEPROM so records are retained between wake-ups. • LoRa communication only; no Bluetooth or Wi-Fi. The node will periodically wake, send an uplink, accept a downlink if present, and return to deep sleep. • Simple sensor block: one digital interrupt input (e.g., reed switch/pulse counter) plus one digital output that can drive an external load for a short, timed burst. Hardware scope – Compl...

I’ve thought of a product that springs to life at the tap of a phone or web button, and I need a talented maker to turn that idea into a fully functioning prototype. The core is a pop-up mechanism—whether you favor solenoids, springs, or a tiny geared motor, I’m open—as long as it rises smoothly, reliably, and safely. Control will come from a Raspberry Pi or Arduino (again, whichever you feel best suits the task), with clean wiring and firmware that listens for a remote trigger. Alongside the hardware, I’ll need a very lightweight app or web page that exposes a simple trigger; bonus points if you can add basic status feedback without over-engineering. I’m happy to supply sketches and dimensions. To keep the conversation focused, please share: • P...

Project Title: Plant Care System using Delta PLC Project Description: I am looking for an expert in Automation and PLC (specifically WPLSoft / Delta PLC) to deliver a complete university project from A to Z. The project title is "Plant Care System using PLC". I need a full package that includes the following 13 items: 1. ABSTRACT: A clear summary of the project. 2. INTRODUCTION TO EMBEDDED SYSTEMS: (Specific to PLC-based systems). 3. BLOCK DIAGRAM: Showing the system architecture. 4. HARDWARE REQUIREMENTS: List of all parts needed. 5. CONTROLLER SPECIFICATIONS: Details about the Delta PLC used. 6. COMPONENT SPECIFICATIONS: Datasheets for sensors (Moisture, Temp, etc.) and actuators. 7. SOFTWARE REQUIREMENTS: (WPLSoft, ISPSoft, etc.). 8. CIRCUIT DIAGRAM: Clear wiring/schematic dia...

I'm seeking an experienced robotics engineer to finalize the development of a consumer robotics product. The project is based in West Chester, PA. Key Requirements: - Experience with consumer robotics - Expertise in final product development - Strong problem-solving skills - Ability to work collaboratively Ideal Skills: - Robotics engineering - Software and hardware integration - Experience in testing and validation MUST BE Philadelphia Area Please provide a portfolio showcasing relevant work.

I’m looking for an experienced engineer who can take my custom-built hardware and make it work seamlessly within a larger system. The heart of the job is hands-on hardware integration—not general project management—so I need someone who is comfortable troubleshooting boards, refining firmware, and confirming that every physical connection and signal behaves as intended. Key goals • Map out the integration plan for the custom boards, interfaces, and peripherals I already have on hand. • Develop or refine any required low-level firmware so the hardware communicates reliably with the host system. • Validate the full signal chain with bench testing, basic stress tests, and a succinct report of results. What I’ll provide – Schematics, compone...

I'm looking for an experienced PCB designer to create multiple PCBs for an integrated control system. The project includes: 1. Current Sensing PCB: - Type: To be determined (shunt resistor, Hall effect sensor, or Rogowski coil) 0 to 20 amps at 240 volt 2. Motor Control PCB: - Function: Control a motor with two limit switches - Control Method: Direct ON/OFF control no limit switched required if can find away around 3. Relay Control PCB: - Components: Two relays (one normally closed, one normally open) 4. Touch Screen Interface PCB: - Function: Control and monitor all PCBs has the main power coming in at 240 volt and is the brain behind the can bus 5. Communication Adapter PCB: - Function: Split communication cable all pcbs will communicate over a cable and ...

I’m looking to build a simple wearable mask prototype that combines light and vibration to create a relaxing sensory experience. The device should include LED lights (preferably RGB) positioned so they shine through closed eyes and run different light patterns. It should also include 1–3 small vibration motors that sync with the light patterns to enhance the experience. I’d like a few basic modes such as calm (slow and soft), medium, intense, and a random mode that generates varying patterns. The patterns should transition smoothly and not feel harsh or abrupt. The device should be controlled with 2–3 simple buttons (power and mode switching). No app or connectivity is needed. It should be powered by a rechargeable battery (USB-C preferred). The physical build d...

Project Description I’m looking for an experienced electronics or instrumentation engineer to design and build a small calibration coil system that generates a known magnetic field for laboratory measurements. The device will be used to calibrate a sensor that detects short, weak magnetic pulses (~1 ms, ~10 nT), so it needs to support time-varying fields up to about 1 kHz. Requirements Build a circular coil or Helmholtz coil (5–10 cm size) Use non-magnetic materials Include a simple drive circuit (MOSFET or similar) Include a precision current measurement (sense resistor + output) Provide outputs for monitoring the current waveform Ensure it works with short pulses (~1 ms) Deliverables Fully assembled working device Basic wiring schematic Documentation of coil size, number o...

I’m building a palm-sized device that helps automate at-home medication. Inside it sit two independent plungers driven by micro servos, a vibration motor, a small speaker for audio prompts, and a 1.68-inch colour display for on-device instructions and feedback. All of these elements need to live on a custom PCB, run from a single rechargeable battery that is properly sized for daily use, and work seamlessly together. You will receive the full parts kit, so your focus is on: • designing the board, • assembling and reflowing it, • loading the firmware, and • proving that everything operates exactly as intended. The most important interaction is tight, reliable coordination between the user’s button press (or other trigger you recommend) and the t...

Short Summary of the Research This research focuses on designing a high-gain antenna for 5G communication at 36–38 GHz (millimeter-wave). Since 5G at these frequencies suffers from high signal loss, the study aims to improve signal strength using an efficient antenna design. The proposed solution is a compact stacked slot antenna, which provides: Wide bandwidth (34–44 GHz) Stable radiation pattern (consistent signal in all directions) Minimum gain of ~6 dBi (higher in arrays) To improve performance, the antenna is developed in three stages: Single antenna element – basic design and testing 1×2 array – increases gain by ~2–3 dB 1×4 array – further improves gain (~6 dB increase overall) The study proves that increasing the number of antenna ele...

Design a complete electronic schematic for our smart orthotic insole device based on the given system requirements. The circuit will include multiple FSR sensors (Force Sensitive Resistors) for plantar pressure sensing and an IMU sensor for gait/motion tracking. Select and integrate suitable supporting components such as microcontroller, BLE communication module, power management circuit, battery charging unit, connectors, and signal conditioning circuits. Ensure proper sensor interfacing, analog signal acquisition, filtering, and calibration provisions in the schematic design. After schematic approval, develop a compact, optimized PCB layout suitable for wearable insole integration with size and flexibility constraints in mind. PCB must be designed for low power consumption, stable sensor...

**Title:** Fusion 360 Designer Needed – Complete Electronic Enclosure Design (Budget €30) **Description:** Hello, I’m looking for a freelancer experienced with **Autodesk Fusion 360** to complete the full design of an electronic enclosure. **What I will provide:** * PCB file in STEP format * A rough enclosure already started in Fusion * A reference visual (design style and colors to follow) **What I need:** * Complete enclosure design (top + bottom parts) * Clean and functional split of the case * Proper internal layout to fit the PCB * Speaker openings, button placements, and ports (USB, etc.) * Basic assembly logic (fit between parts) * Final design matching the provided visual (including color intent / finish) **Goal:** A clean, realistic enclosure ready for 3D p...

Hybrid Artificial Intelligence System for Autonomous Drone Detection Using Computer Vision and RF Signal Analysis The idea is to build AI detection system based on hybrid method (Computer vision and RF signal) and present results :Accuracy, Precision, Recall and False Alarm Rate Algorithms: Computer vision: YOLOv8 (Object Detection) RF analysis: CNN for Spectrogram analysis Merge in : Rule-Based Fusion • or Neural Network Fusion Dataset : Vision Datasets: • Anti-UAV Dataset • VisDrone RF Datasets: • DeepSig RadioML Dataset • Custom SDR Capture (HackRF / RTL-SDR) Budget : 150$

I need a custom harness to connect a Wi-Fi enabled smart door lock, potentially including installation assistance. Requirements: - Design and build a functional harness - Compatibility with Wi-Fi smart door locks - Potential installation support Ideal Skills: - Experience with electronic hardware - Knowledge of smart home devices - Proficiency in installation and setup

I’m outfitting an ArduCopter that runs 6-cell Li-ion packs and need a purpose-built Battery Management System. The board and firmware must continuously monitor pack health, actively balance the cells and speak Mavlink over CAN so the flight controller sees accurate live data. Core functions • Real-time battery monitoring with voltage, current and temperature reporting for every cell and for the full pack • Automatic cell-to-cell balancing to maximise capacity and cycle life • Safety layer that disconnects or limits power on over-charge, over-discharge or short-circuit events • Mavlink-over-CAN telemetry, using the standard ArduCopter battery status messages so Mission Planner and QGroundControl display everything without custom plugins What I expect as d...

The city inspector requires my main breaker panel to be outside, so the top priority is to relocate the existing interior box to the mounting location I have already set aside on the exterior wall of my single-family home. The service line has enough slack, but I will need a properly sized exterior-rated panel, weatherproof fittings, and code-compliant grounding/bonding once the move is complete. While you are here, two more electrical updates are needed in the kitchen: • Install new code-compliant, dedicated receptacles for the refrigerator and electric stove (each on its own circuit, GFCI or AFCI as required by the latest NEC). • Replace a failed light switch that controls the main kitchen ceiling fixture. Please handle permitting, coordinate utility shut-off if re...

I have a LabVIEW program that is already developed and mostly complete. The cRIO hardware is also installed and configured in LabVIEW. The goal is to control one gas pump and one water pump using LabVIEW. Currently, the water pump is working properly, but the gas pump is not functioning. We need to identify the root cause of this issue. For this purpose, we are looking for a LabVIEW specialist who can help diagnose and resolve the problem. In addition, we have two sensors whose readings need to be displayed in LabVIEW. List of tasks to be completed on this nearly finished LabVIEW project: 1. Control the gas pump speed (increase/decrease) via LabVIEW commands 2. Ensure that the water pump, which is already functioning, is not disrupted 3. Connect two sensors to LabVIEW and display the...

Have a working circuit diagram for a device based on the ESP32-WROOM-32E module. The system is powered from an external supply (5V / 8V / 12V). The next step is to convert this schematic into a complete, production-ready, single-sided PCB design using Altium Designer. Scope of Work The objective is to develop a fully functional and manufacturable PCB design that meets the following requirements: Convert the provided circuit diagram into a clean, well-structured schematic in Altium Designer Design an optimised single-layer/double-layer PCB layout Ensure the PCB strictly follows the fixed board outline dimensions (to be provided) Implement clear silkscreen labelling for all components and connectors Optimise component placement and routing for reliability and manufacturability Deliverab...

I need reliable, industry-standard cutting, sewing, and stitching for a new line of cotton dog outfits and leash harnesses. All work must handle cotton fabric smoothly, with clean edges and reinforced seams that can withstand daily wear. The collection will cover small, medium, and large sizes, so consistency across multiple patterns is essential. You will receive detailed quantity breakdowns and measurement charts once we begin; I simply want to be certain every finished piece matches those specs without size creep from run to run. Your workshop should already be set up for production-level garment work—industrial overlock, straight-stitch, bartack, and pressing equipment—as well as quality-control procedures for strength testing on stress points like D-ring tabs and stra...

I need an experienced PLC programmer to troubleshoot and maintain a Mitsubishi PLC system in Pune. You will work with full documentation and codes. Key requirements: - Expertise in Mitsubishi PLC, preferably FX, Q, or iQ-R series - Strong troubleshooting skills - Familiarity with reading and interpreting PLC documentation and codes - Ability to work on-site in Pune

We are from SYNOD BIOSCIENCE and doing a project with an MNC for which we required an electrical engineer for a biogas-based plant project. We are looking for a freelance electrical engineer to develop complete electrical and instrumentation design based on the provided P&ID and vendor documents. The scope includes electrical load calculation and cable sizing, preparation of SLDs (PCC, MCC, and overall plant), GA drawings for MCC and synchronization panels, cable schedule and routing layout, MCC and control panel design, and synchronization system for the biogas genset. The role also involves PLC-based automation design including IO list, control philosophy, and interlocks, along with instrumentation integration as per the P&ID. Additionally, earthing, lighting, and cable tray desi...

I need a custom-shaped, single-layer printed circuit board produced quickly so I can test the mechanical fit and basic electrical routing for a new product I am developing. The overall board must stay as thin as practical; once we speak I will confirm exact thickness and any stack-up limits from my enclosure, but the goal is to minimise profile without sacrificing manufacturability. Here is what I will supply once we start: • A rough outline drawing and simple netlist showing the required connections • Components and preferred connector locations What I expect from you: • Review of my outline and placement to flag any manufacturability concerns • At least three fabricated prototypes shipped to me for bench testing Please use whichever professional tools you a...

I have a new industrial control system under development and now need the core PLC program written from scratch. The hardware has already been selected; I can share the full I/O list, functional specification and any wiring drawings you require once we start. Your role will be to translate those documents into a clean, well-structured PLC application, fully commented and ready for download to the controller. I’ll also count on you to: • model or simulate the logic so we can prove operation before installation • make reasonable tag-naming and memory-usage choices to keep future maintenance simple • supply the compiled program, the editable source file and a quick hand-off guide that explains each routine If you can stay available for remote support during first...

The project revolves around a Kinco PLC linked to its HMI, all developed in the D-Tool suite. I need the controller to handle three core jobs simultaneously: log key process data to non-volatile memory or an external database, push that data to a remote dashboard for live monitoring over TCP/IP, and execute closed-loop automated control of the machine. Connectivity is critical. The program must speak standard TCP/IP for the plant network and support both CANopen and raw CANbus frames so it can exchange data with existing field devices and a supervisory gateway. On the I/O side, the PLC will gather readings from temperature, pressure and proximity sensors, plus capture motor-RPM feedback for speed regulation. The logic should scale, so clean tag structures, well-commented code and clear H...

I already have step-by-step build notes for a tactile glove and the preliminary PCB design files. What I now need is practical help getting that board fabricated through PCBWay. Your job is to take my PCB files, carry out any touch-ups they still require—basic DRC fixes, panelisation or drill map tweaks—then upload the finished Gerbers and BOM to PCBWay, configure the order and place it. The glove relies solely on sensors, with pressure sensors and flex sensors called out in the documentation, so please double-check that the footprints and connector pinouts for those parts remain intact throughout your edits. Deliverables I expect: • Cleaned, production-ready Gerber, drill and pick-and-place files • Updated BOM highlighting the pressure and flex sensors used &bull...

I need a skilled embedded systems engineer to integrate the VS1010 for audio playback and recording in an embedded system. The VS1010 should specifically support WAV file format. Key Requirements: - Implement VS1010 for WAV audio playback - Integrate into an embedded system Ideal Skills and Experience: - Experience with VS1010 and audio processing - Strong embedded systems development background - Proficiency in handling WAV audio files Please provide examples of previous similar work.

I'm looking for an experienced developer to design an environmental monitoring system using the Arduino UNO R4 Wifi board and LoRa technology. The system will be used to collect data on environmental pollutants. Key Requirements: - Use of Arduino UNO R4 Wifi for data processing and transmission. - Integration of LoRa technology for long-range communication. - Development of a reliable power supply system to ensure uninterrupted operation. - Setup of sensors to detect environmental pollutants (specific sensors can be discussed). Ideal Skills and Experience: - Proficiency in Arduino programming and hardware integration. - Experience with LoRa communication systems. - Knowledge of environmental sensors, particularly for pollutants. - Strong background in power supply design for electro...

I need to replace my old SmartDrive-i2c-P.i.D. driver because of this: where, after several attempts, it is proven that the SmartDrive i2c P.i.D. driver does not run (at maximum motor speed) both motors on my side simultaneously

I’m inviting a handful of practicing hardware engineers or PCB designers to spend about 15 minutes inside my pre-launch web app, PartPilot (). Upload a BOM or punch in a part number, then tell me—straight, no sugar coating—what keeps this from becoming a tool you’d lean on every day. During my own testing, the ability to see stock information across four distributors in one glance feels like the killer feature, but I need fresh eyes. Point out what’s confusing, what’s missing, and what would make you actually pay for Pro. How this works • You must have real-world PCB experience; KiCad users are ideal, though Altium or EasyEDA is fine too. • Reply with a line or two about your experience designing boards or managing component sourcing. No ...

My shop’s 200-ton hydraulic press has begun producing an uneven press force that is affecting product quality. I need a certified hydraulic-systems professional who can come on-site, run a full diagnostic, and pinpoint the root cause of the performance issue. Scope of work • Conduct a systematic inspection of the entire press: power unit, valves, cylinders, hoses, filtration, and control logic. • Measure and log pressure, flow, and temperature at all test ports to verify whether the uneven force stems from inconsistent pressure, internal leakage, or a control fault. • Check alignment and structural components to rule out any mechanical binding. • Provide a concise report explaining findings, data readings, and photographs where useful, followed by step-by-s...

I’m putting together a new publication and need an experienced creative partner who can guide the entire process—from shaping the concept to delivering press-ready files. I’m still open on the exact format, so whether the final piece becomes a book, magazine, or brochure will depend on what best serves the content and audience we define together. Scope of work • Help me refine the publication’s purpose and target readers. • Recommend the most suitable format and page count. • Develop an editorial structure and visual style guide. • Create engaging content (articles, photos, illustrations) or coordinate with contributors as needed. • Design clean, modern layouts that balance readability with strong visual appeal. • Prepare fin...

I am developing a compact wearable lighting device based on an ESP32 (ESP-NOW communication + WS2812 LEDs + LiPo battery system). This project is already in progress. I have an existing schematic and PCB layout, but I am looking for an experienced engineer to review, improve, and finalize the design for production. This is not a one-pass project. It will likely require back-and-forth discussion and iterative refinement to arrive at the correct final design. I want to be clear that I will be actively reviewing the work and asking questions as I go. I need someone who is comfortable with that process and open to collaboration. I do not want a situation where I feel hesitant to point out concerns or request changes. --- ### Critical Requirement (Very Important) This device must reliably...

I’m looking for a specialist who can take my concept for a blast-freezer cold room and turn it into a fully engineered design package. The project is strictly design-focused—no installation or maintenance at this stage—and I want every decision to be backed by precise cooling-load calculations so the system runs at peak efficiency from day one. You’ll be sizing and specifying the entire refrigeration circuit, including compressors, evaporators, piping, controls, insulation, and airflow management. I also need layout drawings that show equipment placement, service clearances, and door locations, along with any notes that will help an installer understand the design intent. Please ground the work in current industry standards and typical food-grade hygiene requi...

I have a working Arduino Nano sketch that I now need running on an STM32. The project must be opened, built and flashed entirely inside STM32CubeIDE, so please base every file and configuration step on that toolchain. Key points you will handle • Rewrite the existing sketch for the chosen STM32 device, configuring clocks, GPIO, interrupts and peripherals exactly as needed. • Replace the current Arduino-style calls with HAL-based code generated in CubeMX, keeping the program logic identical. • The original sketch drives an OLED via a third-party library; the same display has to work on STM32, so include whatever open-source driver (U8g2, SSD1306 HAL port, etc.) you feel is most stable. • Alongside the source, provide a short step-by-step guide that shows how t...