Електроніка Jobs

I'm seeking an experienced hardware designer to create and manufacture a face recognition-based attendance terminal. The system should be built on the 8M Plus from NXP and run on a Linux platform. Key Requirements: - 5-inch color LCD touchscreen - Dual-camera setup (RGB + IR) for live face detection - LAN and Wi-Fi connectivity - Advanced encryption for high security - 4G and 5G module integration from qua tel - Input and outputs for Access control - Card Reader - Built-in battery back-up Ideal Skills: - Experience with NXP processors - Proficiency in embedded Linux-based systems - Knowledge in camera integration and security protocols - Hardware design and manufacturing experience - Designing the drivers and firmware with UI design experience Please provide a portfolio showcas...

I have two BLDC motors running on VESC-based controllers and I need them responding smoothly to a radio-frequency hand-held remote. The goal is true “tank style” drive: forward, reverse, pivot left or right, plus proportional speed and braking on each trigger. Here is what I still need done: • Bind and map the RF receiver to both VESCs so every channel on the remote translates cleanly to speed, braking and direction. • Set safe current limits, regenerative and active braking parameters, and be sure neither motor over-currents under stall conditions. • Calibrate RPM and refine torque curves so the response is even across the whole throttle range. • Synchronise the two controllers over CAN so they act like one power-train without cogging or desync a...

I’m building a consumer-grade entertainment device whose flagship feature is smooth, responsive gaming support. I need an embedded systems engineer who can take the idea from concept to working prototype, covering hardware selection, board design, firmware, and performance tuning so the final unit feels console-class in a much smaller, cost-effective form factor. Core requirements • Craft the hardware architecture around an SoC or high-performance MCU that delivers reliable gaming performance without exceeding a 5 W power envelope. • Produce schematics, BOM, and a production-ready multi-layer PCB. • Write and optimise the firmware or RTOS layer that boots quickly, handles user input, and drives audio/video output at 60 fps or better. • Build in easy hooks...

Hello, Phase Zero PCB Feasibility Review for Secure Hardware Wallet Before starting the full PCB design, I would like to do a Phase Zero feasibility review to confirm whether you can professionally complete this project. I am building a one-board secure Bitcoin hardware wallet prototype. Core hardware stack: - 2x Renesas RA8M1 R7FA8M1AHECFB#AA0 - Microchip TA101 secure signer - NXP SE052F secure element - ID Quantique IDQ6MC1 QRNG - DS28E38 authenticator / anti-clone chip - Sharp LS027B7DH01A Memory LCD - USB-C, microSD, LiPo charger, buttons, tamper switch, external SPI flash For Phase Zero, I am not asking you to design the full PCB yet. I need a review of the BOM, architecture, pin assignments, power tree, and manufacturability risks. Please confirm if you can review and deliver: ...

I am building a teaching-grade microcontroller board and need the entire hardware package created in KiCad, from blank canvas to production files. Because this is an academic project, every decision—from MCU choice to trace widths—must be traceable and clearly explained so the board can double as a learning tool. Core needs • Recommend a cost-effective MCU suited to classroom demos. • Draw a full schematic that exposes USB 2.0, a standard UART (no RTS/CTS), plus SPI and I²C headers for lab experiments. Feel free to add extra GPIO or smarter power regulation if it helps future students expand the design—just document the rationale. • Lay out the board in one or two layers, pass all KiCad DRC checks, and keep it manufacturable by common PCB fabs. ...

Saya ingin membangun sebuah aplikasi seluler yang benar-benar “masuk akal”—baik dari sisi alur penggunaan maupun kinerja. Fokus utama saya adalah: • Konsep dan alur fitur yang jelas sehingga pengguna langsung memahami fungsi aplikasi. • Desain antarmuka sederhana namun menarik, mengikuti prinsip UX modern. • Kode bersih dan terdokumentasi agar mudah dipelihara serta dikembangkan. Platform belum saya kunci; saya terbuka untuk iOS, Android, ataupun keduanya. Silakan sarankan pendekatan terbaik beserta teknologi yang Anda kuasai—misalnya React Native, Flutter, Swift, atau Kotlin—dan jelaskan keuntungan pilihan tersebut untuk proyek ini. Deliverable yang saya harapkan: 1. Rancangan fitur dan wireframe awal. 2. Versi prototipe fungsional...

Electrical Scope of Work: Power Requirements and Engineering Studies for Aluminum Extrusion Facility number 2. Scope of Electrical Engineering Services The following electrical engineering services will be provided for the aluminum extrusion line installation: 1. Single-Line Diagram (SLD): Development of a comprehensive single-line diagram illustrating the complete electrical distribution system, including utility service entrance, transformers, main switchgear, distribution panels, motor control centers (MCCs), and all major loads. 2. Fault Study (Short-Circuit Analysis): Detailed short-circuit fault current calculations to determine available fault currents at all key points in the system, equipment ratings, and protective device coordination. 3. Arc Flash Study: Full arc fla...

Saya membutuhkan seorang ahli KiCad untuk membantu saya merancang dari nol sebuah skema elektronik sekaligus layout PCB berbasis mikrokontroler. Skema awal belum ada, jadi pendampingan dimulai sejak pemilihan komponen hingga penempatan jalur. Kebutuhan inti: • Mikrokontroler sebagai pusat sistem • Fitur komunikasi lengkap (USB, UART, SPI, I2C) Ruang lingkup pekerjaan: 1. Diskusi singkat untuk menentukan mikrokontroler yang paling sesuai. 2. Pembuatan skema elektronik di KiCad dengan semua jalur komunikasi aktif. 3. Layout PCB satu–dua layer yang siap produksi, memperhatikan ukuran praktis dan aturan DRC. 4. Penyusunan BOM beserta link pembelian komponen. 5. Ekspor berkas produksi (Gerber, drill file) dan file proyek KiCad lengkap. Bila Anda melihat perlunya...

Saya sedang mengerjakan perangkat berbasis elektronika dan membutuhkan bantuan untuk merancang PCB dua layer lengkap dengan skematiknya. Fokus utamanya adalah memastikan tata letak rapi, jejak sinyal bersih, serta file Gerber siap produksi tanpa revisi berulang. Apa yang saya perlukan: • Skematik yang jelas dan terdokumentasi. • Layout PCB dua layer dengan penempatan komponen optimal untuk mikrokontroler, sensor, atau sistem kontrol sejenis. • File produksi: Gerber, BOM, dan file CAD asli (Altium, KiCad, atau sejenisnya) agar pabrikan langsung bisa mengeksekusi. • Sedikit panduan desain-for-manufacturing (jika ada batasan lebar jalur, jarak pad, atau via) supaya proses cetak lancar. Saya menghargai komunikasi terbuka—silakan ajukan pertanyaan teknis, saran...

Saya membutuhkan bantuan untuk merancang sebuah PCB double-layer yang akan digunakan sebagai papan kendali perangkat. Secara garis besar, saya sudah memiliki konsep fungsi tiap blok, tetapi masih memerlukan tenaga ahli untuk: • Menyusun skematik lengkap beserta penempatan komponen. • Merancang layout PCB dua lapis dengan routing yang rapi dan optimal noise. • Menyiapkan berkas produksi (Gerber, drill drawing, pick-and-place, dan BoM). • Memberi catatan singkat mengenai pemilihan komponen kritis dan pertimbangan arus/tegangan di jalur utama. Tool apa pun boleh digunakan—asalkan berkas akhir bisa dibuka di KiCad atau Altium. Saya terbuka untuk saran perbaikan desain maupun optimasi biaya produksi. Kirimkan portofolio singkat proyek serupa agar saya dapat men...

I am preparing a multinational bid and need a thorough, Chinese-language market study that I can present in English. The scope is strictly industrial electronics: I want to understand where the market is heading, who the key players are, and how current and upcoming regulations may affect the bid. Here is what the work must cover: • Market trends & forecasts – size, growth drivers, five-year outlook • Competitor analysis – local and international suppliers, comparative positioning, strengths and weaknesses • Regulatory environment – national and provincial policies, standards, certification paths, impending changes Primary sources should include recent Chinese industry reports as well as interviews with relevant manufacturers, distributors, and...

I have a nearly finished, high-fidelity digital twin of an autonomous sorting line that still needs a senior Automation / Mechatronics touch before it can be signed off for commissioning. The core bridge between the KUKA KR 180 R3500 ultra, our multi-stage conveyors and all proximity sensors is already built and running; kinematics, basic I/O mapping and initial motion programs are proven in simulation. What remains is the polish and performance work: • Optimise the existing PLC-level logic and motion sequences for smoother throughput and cycle-time reduction. • Integrate a handful of new field devices (additional sensors and a diverter gate) into both the real PLC and the twin. • Finalise sensor integration, conveyor synchronisation and precise robot path planning so that...

I need a skilled electronics expert to print a 3d enclosure to integrate a lithium-ion battery into my Cyd Yellow board with a 2.8-inch screen. The board requires a 5V power supply and should be able to utilize both micro USB and USB-C power inputs. Requirements: - Integrate a rechargeable lithium-ion battery - Power the board via micro USB and USB-C - Ensure the battery is rechargeable through the existing micro USB input Ideal skills and experience: - Experience with battery integration and power management - Proficiency in working with lithium-ion batteries - Knowledge of micro USB and USB-C power systems - Strong soldering and electronics assembly skills Please provide examples of similar work done.

I have a working electronic product already selling in the United States, yet its current board is dated and hard to manufacture. I hold the original schematics but no PCB files, so the first step will be to extract every detail from the physical board, identify each component, and rebuild the entire design in KiCad. Your primary objective is to reproduce all existing functionality while streamlining the layout for better design efficiency and smoother volume production. As you work, please keep U.S. safety, EMC, and environmental requirements in mind so the finished board is ready for certification. If firmware hooks or test pads reveal embedded code, document anything relevant that a firmware engineer would need to know; full‐scale firmware work is not expected, but component-level in...

I need assistance getting Squareline Studio to work with Arduino IDE on a Waveshare 7-inch board. My libraries are messed up, and I'm encountering compilation errors due to missing libraries and what not. Set up my first own project so I can work on it in Square line studio and transfer to Arduio IDE. Key Tasks: - Using Windows 10. Done! - Install Square line Studio 1.6.1. Done! - Maybe want to use Eez studio instead since it is free. It is also installed already. - Install Arduino IDE 2.3. Done! - Use correct folder for IDE .ino files. - Setup Square line Studio and export project to correct folder. - Compile a sample project successfully. Waveshare board to use: ESP32-S3-Touch-LCD-7B with touch. Ideal Skills & Experience: - Experience with Arduino IDE and Waveshare boards...

I need a complete KiCad design that reproduces the functionality of the Radiomaster XR1 transmitter. Exact mechanical dimensions are not critical (although size should be minimal), but every feature the original offers must be present and proven to work over ELRS eg dual 2.4GHz / 868-915Mhz. Firmware and pinout could be compatible with the Radiomaster firmware for simplicity. The job covers the full hardware cycle: schematic capture, PCB layout,manufacturing files, and a JLCPCB-ready BOM that relies solely on in-stock parts. With the exception of the required ESP devices, all active and passive components must be Western-sourced equivalents that JLCPCB can place. To confirm your suitability, please show photographs and a short write-up of at least one, preferably more previous Exp...

The primary challenge in MEMS readout design is capturing microscopic, sub-femtofarad variations in sensor capacitance without the signal being overwhelmed by parasitic noise or electrical interference. While a front-end switched-capacitor (SC) network is highly effective for this capacitance to voltage conversion, its resolution is heavily limited by the non idealities of the internal amplifier. Dynamic amplifiers offer an excellent solution for low-power operation, but they suffer from severe gain variations and performance degradation when moving from theoretical models to practical hardware realization. Key Objectives of this Work: 1. SC Circuit Optimization: Design a switched-capacitor network capable of detecting sub-femtofarad changes while minimizing background noise. 2. Amplifier ...

I have a nearly finished, high-fidelity digital twin of an autonomous sorting line that still needs a senior Automation / Mechatronics touch before it can be signed off for commissioning. The core bridge between the KUKA KR 180 R3500 ultra, our multi-stage conveyors and all proximity sensors is already built and running; kinematics, basic I/O mapping and initial motion programs are proven in simulation. What remains is the polish and performance work: • Optimise the existing PLC-level logic and motion sequences for smoother throughput and cycle-time reduction. • Integrate a handful of new field devices (additional sensors and a diverter gate) into both the real PLC and the twin. • Finalise sensor integration, conveyor synchronisation and precise robot path planning so that...

I have a nearly finished, high-fidelity digital twin of an autonomous sorting line that still needs a senior Automation / Mechatronics touch before it can be signed off for commissioning. The core bridge between the KUKA KR 180 R3500 ultra, our multi-stage conveyors and all proximity sensors is already built and running; kinematics, basic I/O mapping and initial motion programs are proven in simulation. What remains is the polish and performance work: • Optimise the existing PLC-level logic and motion sequences for smoother throughput and cycle-time reduction. • Integrate a handful of new field devices (additional sensors and a diverter gate) into both the real PLC and the twin. • Finalise sensor integration, conveyor synchronisation and precise robot path planning so that...

I have a nearly finished, high-fidelity digital twin of an autonomous sorting line that still needs a senior Automation / Mechatronics touch before it can be signed off for commissioning. The core bridge between the KUKA KR 180 R3500 ultra, our multi-stage conveyors and all proximity sensors is already built and running; kinematics, basic I/O mapping and initial motion programs are proven in simulation. What remains is the polish and performance work: • Optimise the existing PLC-level logic and motion sequences for smoother throughput and cycle-time reduction. • Integrate a handful of new field devices (additional sensors and a diverter gate) into both the real PLC and the twin. • Finalise sensor integration, conveyor synchronisation and precise robot path planning so that...

I have a nearly finished, high-fidelity digital twin of an autonomous sorting line that still needs a senior Automation / Mechatronics touch before it can be signed off for commissioning. The core bridge between the KUKA KR 180 R3500 ultra, our multi-stage conveyors and all proximity sensors is already built and running; kinematics, basic I/O mapping and initial motion programs are proven in simulation. What remains is the polish and performance work: • Optimise the existing PLC-level logic and motion sequences for smoother throughput and cycle-time reduction. • Integrate a handful of new field devices (additional sensors and a diverter gate) into both the real PLC and the twin. • Finalise sensor integration, conveyor synchronisation and precise robot path planning so that...

I have a nearly finished, high-fidelity digital twin of an autonomous sorting line that still needs a senior Automation / Mechatronics touch before it can be signed off for commissioning. The core bridge between the KUKA KR 180 R3500 ultra, our multi-stage conveyors and all proximity sensors is already built and running; kinematics, basic I/O mapping and initial motion programs are proven in simulation. What remains is the polish and performance work: • Optimise the existing PLC-level logic and motion sequences for smoother throughput and cycle-time reduction. • Integrate a handful of new field devices (additional sensors and a diverter gate) into both the real PLC and the twin. • Finalise sensor integration, conveyor synchronisation and precise robot path planning so that...

I need a compact, low-noise analog front end for a multi-lead ECG built around the Texas Instruments ADS1298. The goal is a fully validated schematic and PCB layout that can capture clean ECG signals, digitise them through the ADS1298, and present the data via an SPI interface for a downstream MCU. Key points of the job • Core converter: ADS1298 integrated correctly with its internal PGAs, reference, and bias generation. • Signal chain: front-end instrumentation amplifiers, right-leg drive, antialias and mains-rejection filtering sized to meet IEC 60601 ECG bandwidth/noise limits. • Power: dual-supply or single-supply rail architecture with proper isolation and low-drop regulators. • Safety & compliance: pay attention to patient-isolation clearances and leaka...

I have a nearly finished, high-fidelity digital twin of an autonomous sorting line that still needs a senior Automation / Mechatronics touch before it can be signed off for commissioning. The core bridge between the KUKA KR 180 R3500 ultra, our multi-stage conveyors and all proximity sensors is already built and running; kinematics, basic I/O mapping and initial motion programs are proven in simulation. What remains is the polish and performance work: • Optimise the existing PLC-level logic and motion sequences for smoother throughput and cycle-time reduction. • Integrate a handful of new field devices (additional sensors and a diverter gate) into both the real PLC and the twin. • Finalise sensor integration, conveyor synchronisation and precise robot path planning so that...

I'm in need of a seasoned professional with extensive experience in drone development, particularly in firmware customization using PX4 and ArduPilot. The focus of this project is on integrating specific sensors and customizing communication protocols. Key Requirements: - Deep understanding and experience with PX4 and ArduPilot firmware - Proficient in customizing firmware for sensor integration and communication protocols - Experience with integrating LIDAR and servo motor sensors Ideal Skills: - Firmware customization - Drone hardware integration - Communication protocols customization

I'm seeking a person who builds projects with Raspberry PI, to build a 360 camera with a raspberry PI 5. Key Requirements: - **Purpose**: The camera is to be used mainly for capturing video, transmit videos through WIFI / Bluetooth to Phone App. Open source App controls camera. Ideal Skills and Experience: - Designing or providing Raspberry PI projects. Please provide samples of similar products or designs and any relevant experience in your bids.

For a Spanish speaker in Barcelona! I am bringing together a compact laser platform and an FPGA-based control board here in Barcelona, and I need an engineer who can sit beside the hardware, plug in the scopes and power rails, and push the overall performance to its limit. The work is squarely at the crossroads of optics and digital electronics: you will be aligning the laser path with a set of optical sensors, tightening the signal chain that feeds the onboard FPGA signal processors, and making sure the power supplies deliver exactly what the photonics and the logic fabric demand—no more, no less. What I expect you to drive: • Physical and electrical integration of the laser module with the FPGA board • Low-noise routing between optical sensors and high-speed signal...

I’m rolling out a new industrial automation line that runs on a Siemens S7-1500 PLC, and I need an experienced programmer in India who is comfortable living inside TIA Portal. The hardware cabinet is already wired; the next step is to build the PLC logic, design the HMI, and prepare the Wincc 8.1 SCADA so we can move straight into commissioning without delays. What I expect from you • A clean, modular STEP 7 program for the S7-1500, fully commented and ready for online download • HMI screens developed in TIA Portal that mirror the plant workflow, including alarms, trends, and user-friendly navigation • All tag mapping, data blocks, and communication settings documented for seamless SCADA integration • A commissioning guide with I/O list, safety interlock...

I’m developing an ultra-thin heated glove that feels no bulkier than a regular winter liner yet warms the wearer’s hands rapidly and evenly. To get there I need help moving from concept sketches to a working prototype I can put through real-world testing. Here’s what I already have and what I still need: • Concept drawings that illustrate overall look, target thickness (≤3 mm excluding battery) and desired heating zones along fingers and back of hand. • Preliminary research on micro-film resistive heaters, flexible lithium-ion pouch cells, and low-profile USB-C charging circuits. You would handle the technical integration—selecting the thinnest safe heating element, embedding it into a comfortable textile stack, designing a compact power/controls m...

I am automating a three-pump pressure-boosting skid and have chosen a Delta PLC paired with a Delta DOP-series HMI plus a single VFD that will rotate between the pumps. The job covers the full PLC logic and matching HMI screens. System requirements • Three pumps share one VFD. Each pump needs on/off sequencing, variable-speed capability through the drive, and individual fault monitoring (overload, dry run, VFD trip, etc.). • Duty/stand-by rotation adjustable from the HMI. • Lead/lag logic must maintain set-point pressure with PID control in the PLC. • Delta HMI should show real-time water-pressure values and clear pump status/alarms; space can be reserved for future energy-consumption data. • Manual mode with local start/stop, plus auto control from the ...

We are looking for an experienced electronics / embedded hardware freelancer to help assemble and test 5 pilot units of an ESP32-S3 based IoT mini controller. The PCB/PCBA boards are already designed and manufactured by JLCPCB. The firmware file is also ready. This project is not for PCB design and not for firmware development from scratch. The main task is physical assembly, firmware flashing via USB-TTL, and basic bench testing. The final goal is to prepare 5 working pilot units in the correct order: Milestone 1: Assemble, flash and test 1 pilot unit first. Milestone 2: After the first unit is validated successfully, assemble, flash and test the remaining 4 units using the same process. Scope of work: * Mount the PCB/PCBA into an IP65/IP66 enclosure * Connect the external Wi-Fi an...

More details: Which software tool should be used to recreate the schematic? Altium What information should successful freelancers include in their application? Experience Do you have any specific requirements or standards that the schematic must adhere to? Industry standards

Electrical Inspector Mount Pleasant, PA Role Description This is a onsite role for an Electrical Inspector based in Mount Pleasant, Electrical Inspector will be responsible for conducting thorough inspections of electrical systems to ensure code compliance, safety standards, and proper functionality. Key tasks include evaluating blueprints, preparing inspection reports, troubleshooting electrical systems, and collaborating with contractors and other professionals to address and resolve issues. HV Circuit Breaker Inspection & Testing • Perform detailed visual, mechanical, and electrical inspections of high-voltage circuit breakers (4 kV – 500 kV class) in substations, industrial facilities, and utility environments. • Execute and interpret diagnostic tests i...

I need a precise, low-resistance solder joint made on the battery leads of my drone. The task is straightforward: take the existing electrical wire coming from the battery pack and solder it securely to the designated battery connection pads/connector on the airframe. A clean, shiny joint with proper strain relief is crucial so the connection can handle both current spikes and the vibrations that come with flight. Bring whatever tools you feel most confident with—a temperature-controlled iron, fine rosin flux, decent solder (60/40 or lead-free is fine if you’re comfortable), and heat-shrink tubing for insulation. Once the joint is complete, I’ll do a quick continuity and voltage drop test; as long as it passes and looks solid, the job is done. If this is something you c...

I need a senior-level electrical engineer who can split time between working remotely and being on site in Orange County, CA. The project centers on motor-control electronics, so every board you design must reliably drive, sense, and protect a variety of motors under real-world loads. Here’s the flow I expect: • Draw the schematic and capture the BOM for a new motor-control PCB, selecting components that meet cost, thermal, and EMI constraints. • Lay out the board for manufacturability, noise immunity, and serviceability, then generate all fabrication and assembly files. • Oversee prototype builds, bring the hardware up in the lab, and run functional, thermal, and load tests with my existing motor rigs. • When issues surface, dive into trace analysis, osci...

I have just purchased my neighbour’s central air-conditioning system and need a qualified HVAC professional to handle the entire transfer. The unit must be carefully dismantled at the neighbour’s property, moved next door, and fully installed at my single-family home. Once in place, I also want it tested, charged if necessary, and given a quick maintenance check so I know it is running at peak efficiency. You will receive the exact brand and model details upfront so you can bring the right fittings, line-set length, refrigerant, and electrical hardware. The two houses sit side-by-side with unobstructed driveway access, which should make transport straightforward; however, I still expect proper recovery of any remaining refrigerant, safe handling of electrical connections, and ...

I need a compact, kitchen-chimney-friendly PCB that drives an ultrasonic transducer in the 40 kHz – 60 kHz band from an AC-mains supply. The goal is a reliable, low-cost circuit that keeps insects away without adding bulk or noise to the appliance. Here is the scope I have in mind: • Circuit conception and PCB layout, mindful of minimal component count and low BOM cost • Full documentation package—schematic, PCB design files, Gerbers, pick-and-place data, and detailed BOM with part numbers and estimated pricing • Advice on a suitable microcontroller or discrete-logic approach; I’m open to Arduino, ESP8266, PIC or any alternative that meets cost and space targets • Consideration for safe mains rectification, filtering and isolation so the board ...

I need a complete electrical and mechanical design for a Framework Laptop expansion card built around the RP235xA microcontroller in the 30-GPIO QFN-60 package. My top priority is that everything fits perfectly inside the standard expansion-card envelope defined in Framework’s official repository (). Key requirements you must hit • Use the RP2350 and expose all USB-C power and signal constraints exactly as the Framework reference dictates. • Keep the card flush: no part of the PCB, component or connector may project past the official boundary. • Place two tactile switches (reset and boot) plus one RGB LED (I’m thinking WS2812 or equivalent) and one status LED on the underside so they are visible and accessible when the card is plugged into the laptop. ...

I want to prove that a pen-shaped gadget can masquerade as a Bluetooth HID and reliably control media on an iPhone. All I need right now is a working one-off prototype; certification, refined industrial design, and long-term battery optimisation can wait. Core requirements • The electronics must fit inside a pen body (a 3D-printed tube is fine). • On power-up it should pair with an iPhone as a standard HID remote. • A single tactile button will cycle through Play/Pause → Next Track → Previous Track in that order, sending the appropriate consumer-control codes. • I’m flexible on the radio stack—Bluetooth Classic or BLE, whichever gets the job done fastest. • Robust, repeatable functionality matters more than looks. What I expect to ...

Phase 1 – Automation Architecture -Review your sequence -Select controller platform -Define I/O list -Define architecture -Define communication philosophy Phase 2 – Hardware Selection -PLC selection -PC interface selection -Stepper driver selection -Sensor selection -Power supply sizing -Pneumatic component review Phase 3 – Controls Design -I/O mapping -Tag list -State machine -Interlocks -Fault matrix Phase 4 – Programming -PLC code -PC interface software -Modbus configuration -Motion setup Phase 5 – Electrical Design -Panel layout -Wiring diagrams -Terminal schedule -Power distribution Overview: A prototype including stepper motors, sensors and limit switches 24VDC. requirement to program, PLC, mapping, make ready to apply industry 4. in the future...

I need a compact, reliable AC solid-state relay designed specifically for driving pump loads. The control side will accept 3–32 V DC, while the load side must safely switch 24–380 V AC at a continuous 25 A. Core expectations • Status indication via a front-panel LED • Full opto-isolation between control and load • Zero-cross switching is preferred to minimise inrush, but I will consider a non-zero-cross solution if it offers clear advantages for motor-driven pumps. • The housing should be compatible with a standard heat-sink footprint, and I am open to either DIN-rail or panel mounting depending on what your thermal calculations show to be most practical. Deliverables 1. Full schematic with component values and reference designators 2. PCB ...

I need PLC panels designed for both control and monitoring functions in a manufacturing setting, specifically for process control. Key Requirements: - Design and execution of PLC panels - Integration for process control and monitoring - Suitable for the manufacturing industry Ideal Skills: - Experience with PLC programming and panel design - Background in manufacturing automation - Knowledge of process control systems Please provide relevant experience in your bids.

ESP32 Bluetooth-Enabled Umpire Indicator Prototype with Rotary Encoders (BLE Sync to Mobile App) *We have two full time App developers that you can work with. Project Description: Seeking an experienced embedded systems engineer to develop a functional prototype of a Bluetooth Low Energy (BLE) digital umpire indicator for slo-pitch softball. Reference: See attached image of standard Champion 4-dial indicator (Balls, Strikes, Outs, Innings). Requirements: • Replicate tactile dial feel using rotary encoders (notched/clicking action for no-look operation). • ESP32 (preferred) or equivalent microcontroller with BLE to transmit real-time count updates (balls/strikes/outs/innings) to a mobile app. • Device pairs with our existing slo-pitch live-streaming + scoring app and up...

Custom PS Navigation Controller Project Specification Goal: Create a modernized PlayStation Move Navigation Controller (PS Nav) that preserves the original ergonomics, thumbstick location, and feel while addressing the hardware limitations of the original design. The project is not intended to redesign the controller. The objective is to preserve the PS Nav experience as closely as possible while modernizing its functionality and reliability. Core Design Philosophy: The controller must retain the original PS Nav shape, grip angle, and thumbstick placement. The thumbstick location is the most important feature and must remain unchanged. The stick should remain in the same top-mounted position as the original PS Nav rather than adopting Xbox, PlayStation, Joy-Con, or Azeron-style layout...

RFID Hardware Product Development (NDA Required) We are looking for an experienced Hardware Engineer / RFID Specialist to design and develop a custom RFID-based hardware product. The product involves tracking and measuring physical expansion, dimensional changes, or movement of a tagged object over time using RFID and related sensing technologies. At this stage, only high-level information is being disclosed. Detailed project specifications, use cases, technical requirements, and commercial applications will be shared only with shortlisted candidates after execution of a Non-Disclosure Agreement (NDA). Required Skills RFID Technology (HF, UHF, NFC, Active/Passive RFID) Embedded Systems Hardware Product Design PCB Design Sensor Integration IoT Hardware Development Prototype Development Prod...

ESP32 firmware for an experimental, battery-powered maker devkit (SyncStim) that plays a 10 ms audio burst and, at a configurable interval, fires a charge-balanced biphasic constant-current electrotactile pulse train (plus an LED cue). The core requirement is timing fidelity and safe constant-current output, verified on an oscilloscope. Hardware is already specified (BOM): ESP32-WROOM-32D, MAX98357A I2S amplifier, DRV8871 H-bridge, DC-DC boost converter, LM334 constant-current source, current sense, SD card. Battery-powered and mains-isolated. Behavior: repeats a 200 ms cycle (5 Hz). Each cycle is a 10 ms audio burst over I2S, then after a configurable inter-stimulus interval, a burst of 3 biphasic pulses (150 microseconds per phase, 1 ms onset-to-onset), constant current, under 3 mA, ch...

I’m developing a new consumer-electronics gadget and need a compact, production-ready PCB designed around a Wi-Fi/Bluetooth module. The board must stay within a 4 x 4 inch footprint, leaving enough clearance for an enclosure that is already in progress. Here’s what I’m expecting from you: • Complete schematic capture and PCB layout in your preferred professional tool (Altium, KiCad, or Eagle are all fine). • Well-routed RF section that maintains antenna performance and meets FCC pre-compliance guidelines. • Gerber, drill, and pick-and-place files ready for fabrication. • A concise BOM with part numbers that have strong supply-chain availability. • Brief design notes highlighting impedance-controlled traces, power-plane considerations, a...

My Amazon FBA store is ready to branch into the electronics niche, and the priority now is locating winning products and reliable suppliers. The scope covers the full product-sourcing cycle—from market research and margin calculations through direct supplier contact and sample coordination—ending with a vetted shortlist of SKUs that meet profitability, demand, and compliance criteria. Please ground every recommendation in verifiable data (keyword volume, sales velocity, and landed cost) and back it up with supplier quotes that include MOQ, production lead time, and shipping options to US fulfillment centers. Deliverables • A comparative sheet of at least 5 high-potential electronic products, each with sales metrics, estimated ROI, and risk notes • Supplier con...

I have the full schematic for working legacy PCB. I need it redesigned and modernised into a new board using current components, while keeping the original board size, mounting holes and connector positions. The old design uses PIC18F8722, FT232RL, TDA7465, video switching and RCA outputs. The new design should replace those with STM32 native USB, modern audio DSP/codec, protected coin inputs, modern power regulation, and custom firmware support. This is not an exact clone. It is a modern drop-in replacement using the original schematics as a reference. Key things :- Keep: * Board size: 168mm × 206mm * 6 mounting holes * USB-B position * Existing amp connectors * Mic input * Coin mech interface * IR receiver/service button * J8 motherboard audio input Remove: * RCA sockets * Vi...

I have a small home-automation module that needs a reliable touch interface, so the task is to engineer a 5 V circuit around the TTP223 that cleanly switches between high and low digital levels whenever it is touched. Precision in sensitivity and long-term stability matter more to me than squeezing out the very last microamp, yet the design should still sit comfortably in standby without wasting power. Key expectations • The sensor must tolerate normal household electrical noise without false triggering. • Output logic levels must be directly MCU-friendly (TTL/CMOS, active-high preferred). • Component count should stay minimal; surface-mount parts are fine. • Any necessary debounce or filtering should happen in hardware rather than firmware. Deliverables 1. ...