Electronics Jobs

I have three existing Altium Designer projects that must be refreshed before the next manufacturing run at JLCPCB. Both the schematic and the board layout need attention. On the schematic side I already know the exact edits: a handful of parts have to be added or removed, several nets must be reassigned, and a few voltage- and current-related values updated. Once those changes are in place the PCB layouts have to be brought in line—rerouting where required, keeping the original board outlines and mechanical constraints intact, and making sure every DRC/ERC check comes up clean. When the files are solid I need a full, ready-for-upload manufacturing package: • Updated Altium project files (.PrjPcb, .SchDoc, .PcbDoc) • Gerber and NC-Drill set generated with JLCPCB’s ...

I need a compact, production-ready PCB designed for a new consumer-grade smart-home device. The board’s core task is to handle a dedicated control-interface switch that will let users toggle the appliance on and off and cycle through a few operating modes. Space is not tight, so component selection and trace routing will be no problem. You’re free to work in Altium Designer, KiCad, or Eagle—whichever lets you move fastest while still delivering neat, well-documented files. If you choose RF-friendly parts, please keep the layout compatible PCB Easy or JLCPCB. Deliverables I expect: • Schematic and PCB layout files • Gerber, drill, and pick-and-place outputs ready for fabrication • A tidy BOM with supplier part numbers and current pricing • Assem...

We are developing a carwash kiosk control board that will work together with our Paymore TPOS device, and we are looking for an experienced embedded hardware designer to design a production-ready PCB. This is a real commercial product that will go into mass production, therefore the design must be industrial-grade and manufacturable. The board will control a P10 LED panel (HUB75) that runs continuously 24/7, displaying countdown timers and simple messages. The system must also include Pulse+ and Pulse− inputs that can operate either as dry contact inputs or opto-isolated inputs, counting pulses and triggering system actions. Based on the detected pulses, the board must activate one of 10 independent output channels that can drive 5V or 24V signals for a defined period and then autom...

Freelance Hardware Engineer – Altium PCB Design Review (Remote Access) We have an existing Pulse Converter PCB designed using Altium Designer and are looking for an experienced freelance hardware / PCB design engineer to perform a technical design review. The work will be done via remote access to our computer (AnyDesk / TeamViewer). Design files will not be shared. Detailed circuit functionality and design context will be explained after mutual agreement and confidentiality alignment. Scope of Work: Review the schematic and PCB layout in Altium Designer and identify potential design issues, risks, and improvement points, including but not limited to: Power input and regulation (wide-range DC input) Relay driver circuits Optocoupler-based pulse input circuits MCU (ESP32 or sim...

I have a patent-pending, two-part proximity alarm that needs to move from concept to fully functioning prototype. The core of the job is solid circuit design: I want the system to be entirely battery-powered and capable of reliably triggering another device when the set distance is breached. Once we have a signed NDA in place I will share schematics, range requirements and the mechanical envelope, but here’s what I can say up front: • The electronics must be compact, low-power and production-ready. PCB layout in Altium, KiCad or a comparable tool is fine as long as the native files are supplied. • Firmware should be clean and well commented if a microcontroller is required; I’m open to your architecture suggestions. • I will need a complete bill of material...

I need a robust arc-suppression circuit engineered specifically for my RF welding machine. The goal is simple and non-negotiable: stop destructive arcing before it reaches the generator or matching network, protecting the entire system from costly downtime and repairs. Key points you should know up front • Purpose: prevention of equipment damage only—operator safety circuits are handled elsewhere. • Architecture: solid-state components throughout; no relays or mechanical contacts. • Ratings: I will share the operating voltage and current range once we start, so your design must be adaptable within those limits. What I expect to receive 1. Schematic with clearly labeled protection stages (detection, quench, reset). 2. Bill of materials with manufacturer p...

I have a commerical infrared device I want to push beyond its stock limits by unlocking and fine-tuning the voltage-gating parameters, and explore any additional user-interface controls that govern current (U/I). My end-goal is better overall performance without compromising stability or safety. You will need to access an unknown programmer interface via a 6-pin connector, determine the language, locate the relevant developer-level menus etc, and apply changes. Experience with low-level hardware interfaces a must. Acceptance criteria: • Device boots and functions normally after modifications • Voltage and current settings report the new, target values • Device test and verification prior to final payment • Some minor hardware modifications may be necessary (pr...

I need five separate input-output matching networks for the MACOM CGHV270305, one for each of the following RF bands: • 30–200 MHz • 200–600 MHz • 600 MHz–1.8 GHz • 1.8GHz–4 GHz • 4GHz–6 GHz For every band the network must deliver at least 30 W across the full span while maintaining solid, stable gain. I will verify this from the final performance plots, so please present both power-output and gain data together in clear scatter-plot format. Alongside the simulation results I need production-ready DXF files of the matching PCB layouts. Keep the drawings aligned with recognised industry standards so they can move straight into fabrication without extra re-work. Deliverables 1. S-parameter models (touchstone) and any suppor...

We are looking for an experienced freelancer to support us on upcoming drone development projects for our company. The work may involve design, prototyping, technical consultation, and development support depending on project requirements. We are seeking someone with strong knowledge and hands-on experience in drone/UAV systems and related technologies. Requirements: • Experience in drone/UAV design and development • Knowledge of flight controllers, motors, ESCs, GPS, batteries, and communication systems • Understanding of drone assembly, testing, and troubleshooting • Ability to suggest suitable components and technical solutions • Experience with custom drone projects is a plus • Good communication and ability to work on project-based tasks Scope of...

I need a concise Python 3 script that will run on a Raspberry Pi 5 and do the following: • Watch a single GPIO input line for the HIGH digital signal coming from my Sony camera’s built-in AI output. . The Sony camera will be pre-loaded with images of the target - in this case a plant which is detected in the target bounding box in the camera field of view. . When the target plant is encountered in bounding box of the camera field of view, the corresponding relay will activate a spray nozzle for the time the target remains in the bounding box. •The point above is achieved as soon as that digital signal is detected, drive a separate GPIO output that energises a small 5 V solenoid for as long as the target plant remains in the bounding box of the camera, then automatical...

PCB DESIGN with these or better components placement Processor & Memory Main SoC NXP iMX8M Plus — Quad Cortex-A53 1.8GHz + Cortex-M7 800MHz Safety MCU TI TMS570LS3137 — dual-core lockstep Cortex-R4F, SIL-2 certified Diag FPGA Lattice MachXO3LF-9400 — in-situ verification logic, <2ms latency RAM 4 GB LPDDR4, ECC enabled, 1600 MT/s Flash 32GB eMMC 5.1 (AES-256-XTS) + 128MB QSPI NOR boot Wireless MCU ESP32-S3 co-processor (Wi-Fi 6) Sensor Specifications Temperature PT1000 ±0.05°C (primary), DS18B20 ±0.5°C (backup), NTC (tertiary). Range: −40 to +150°C Humidity SHT45 ±1.0%RH + HDC3020 ±1.5%RH. Range: 0–100%RH, 0–85°C Pressure MS5837-02BA 0–2bar ±0.05%FS + MS5837-30BA 0–30bar (secondary) L...

I need a full architecture and layout for an advanced, multi-sensor PCB that will regulate heating, cooling and humidity inside a pharmaceutical machine. The board must interface with temperature, humidity and proximity sensors as standard, while leaving room for additional inputs such as light, pressure, water-level and high/low-voltage detectors. All sensing channels have to support automatic failure detection so the system can trigger the right alarm—heater, compressor, open door, over/under temperature, over/under voltage, pressure deviation—without user intervention. On the connectivity side I want both wired and wireless options: LAN, USB, CAN-Bus and RS-485 for plant integration, plus a wireless link for cloud dashboards. A capable processor with dedicated RAM and non-v...

I need a waterproof pan & tilt device for a small camera (3x3 inches). The Device will be mounted on the roof of a passenger vehicle. The base of the unit may need a silicon gasket to prevent water from entering the vehicle through the installation bolt holes or the wires running through openings into the ceiling of the vehicle. (I am not considering a suction mount at this time because I prefer the Theft prevention security of a bolt on mount) The device should be: - Best available waterproofing: dust, potentially submersible - Hardwired control for power and joystick Ideal skills and experience: - Experience with waterproof electronics - Expertise in camera mounting and panning tilting mechanisms - Ability to design hardwired control systems / joystick - Joystick is preferred for...

Project Title: Miniature Piezo Preamp PCB (10mm) – Reverse Engineer & Redesign Project Overview I am developing a professional leak detection microphone used for plumbing diagnostics. The system uses a piezoelectric sensor to detect vibration and sound from water leaks inside pipes. I already have a working preamp circuit, but the PCB is too large for my application. I need an experienced electronics engineer to analyze the existing design and redesign it into a much smaller PCB. The new design must maintain similar electrical performance but reduce the physical size so it can be mounted directly on the piezo sensor and permanently sealed with epoxy resin inside a capsule. Primary Objectives 1. Analyze or replicate the functionality of my existing piezo preamp. 2. Redesign ...

I need a seasoned LUA developer who also speaks the language of audio engineering to extend the processing palette on Symetrix, RANE and Allen & Heath DSP platforms. The work sits squarely inside each manufacturer’s SDK, so the GUI framework is already included what we need from you is efficient signal-flow code that drops straight into the existing interface. Primary tasks • Write well-commented LUA modules for DSP • Add pitch and general frequency-management routines that can be chained with, or operate independently of, the above effects. • Optimise code and supply test files that we can provide feedback on Further details on request..

I need an internal tool that streamlines how our engineers create, debug, validate, and analyse test programs running on Automated Test Equipment (ATE). Today the workflow jumps between scripts, spreadsheets, and ad-hoc notes; the new application should bring everything into one place and let us move from first code draft to signed-off validation far faster. Core functions I want to see working together: • Powerful debugging utilities that plug directly into our existing Python test scripts, pause execution, inspect variables, and store snapshots for later review. • Data analysis and reporting that turns raw ATE logs into clear plots, KPIs, and exportable PDF/CSV packs automatically after each run. • A validation checklist engine so every release of a test program is ...

I am looking for an experienced PCB designer to create a 4‑layer carrier board for a Raspberry Pi Compute Module 5 (CM5). The board integrates several existing open‑source hardware concepts into a single PCB, with limited original R&D but careful integration and cleanup. Scope of this first project - Review and consolidate existing reference schematics (I will provide open‑source designs and documentation). - Design the final schematic for: - Raspberry Pi CM5 + power supply - CAN‑based bus for a marine/industrial network (NMEA‑style) - NMEA 0183‑style serial interfaces - Connectors and I/O suitable for a small boat/embedded environment - eDP interface for an external display - PCB layout: - 4‑layer stackup with proper impedance control for eDP - Rea...

I need a fully-functioning prototype of a portable lunchbox that can actively heat food up to 60 °C and cool it down to 4 °C at the press of a touchscreen control. The enclosure should be molded primarily from food-grade plastic; please keep the overall profile compact enough to fit in a standard backpack while leaving room for the insulation, Peltier or heating elements, battery pack, control board, and a small food compartment sensor. Key functions I expect to see working on the bench: • Touchscreen interface on the lid that lets the user toggle between Heat (60 °C) and Chill (4 °C) modes, with real-time temperature read-out. • USB-C charging input feeding an internal rechargeable battery that can run at least one full heat cycle and one full cool cycle on ...

Project Goal: I am building a high-performance, wrist-mounted smartphone featuring a 15cm floating, interactive aerial display. I require a lead engineer to deliver a 100% functional, turn-key prototype that operates like a modern flagship smartphone, fully compliant with international safety and regulatory standards. ​Technical Requirements: ​Display Engine: Flat-top design. Use Micro-mirror Array Plate (MMAP/DCRA) + Folded Optics (Z or U-path) to project a high-definition image exactly 15cm into the air. ​Smartphone Architecture: ARM-based high-end SoC, 8GB RAM, 128GB Storage, Android AOSP. ​Connectivity: 5G/LTE module with eSIM support, Wi-Fi 6, Bluetooth 5.3, GPS/GLONASS. ​Hardware/Sensors: * Touch: LiDAR/ToF sensor calibrated for 15cm spatial interaction (zero-latency). ​Imaging: High...

I am working on a concept of mainly "Preventive Maintenance using Sensors" For this I will Import sensors from China; Install at factories and Charge monitoring subscription in Maharashtra. I want guidance on below -- Which sensors to buy from these ones (dont want hypothetical answers like alibaba and some listed companies over it - that ChatGPT also gives: vibration sensors; temperature sensors; motor monitoring devices. Need exact compaby and specification and to which cloud platform as well as dashboard it would be fit for AI monitoring remotely. No ChatGPT answer please - I want someone who have actually worked on it or knows end-to-end. Next: Sensors + Edge device + AI software - which one to use and how? Wireless Vibration Sensors; Motor Condition Monitoring Advanced Se...

I am building a tiny GPS tracker device for my company and need an experienced PCB designer. Project Requirements: - Design schematic and PCB layout for a compact GPS tracker. - Use SIM7080G (LTE/NB-IoT with GNSS) module. - Include SIM card slot, GPS antenna connector, LiPo battery connector, and charging circuit. - Board size should be approximately 18 mm x 20 mm. Deliverables: - Complete schematic - PCB layout - Gerber files for manufacturing - Bill of Materials (BOM) - Pick and Place file (optional) Preferred Tools: KiCad, Altium Designer, or EasyEDA. Experience Required: - Experience designing IoT or GPS tracking devices - Knowledge of RF layout and antenna placement Budget: $30 – $50 (negotiable) Please share examples of previous PCB designs.

I’m ready to move an industrial-grade controller from concept to production and need a designer who has already shipped tight, 6-layer boards. The board must host a main microcontroller, its support circuitry, and several high-current power-regulator stages, all within a restricted outline while meeting EMI/EMC limits typical for factory environments. You’ll start from my block diagram and rough schematic notes, turn them into a production-ready layout, and supply every file the assembly house will ask for: updated schematics, stack-up, Gerbers, drill files, pick-and-place, BOM, and a brief design report explaining how the EMC strategy and size targets were achieved. I’ll be available for rapid feedback on component placement and routing choices, and we’ll sign ...

I’m working on a project with the AVR-IoT Cellular Mini (Sequans Monarch 2 modem), where I modified the Arduino-based firmware myself to periodically transmit GPS latitude and longitude data to my backend (BE) over HTTPS. The objective is to send GPS data (latitude, longitude, and timestamp) to a REST API endpoint at a defined interval and confirm that the data is successfully received and visible on the backend. At the moment, I’m blocked by a TLS issue while attempting to configure the CA certificate for HTTPS. When I try to add the root CA certificate (ISRG Root X1 – Let’s Encrypt) to the device/modem, I get an error that says: “CA certificate input too long” Because of this issue: • The TLS handshake fails. • The HTTPS request does no...

Title: Transformer Design Engineer Needed – Oil Filled Distribution & Solar Transformers Description: We are setting up a transformer manufacturing unit in Vadodara, India and are looking for an experienced electrical design engineer with expertise in oil-filled power/distribution transformers. This is initially a freelance/consulting role to help us develop transformer designs and technical documentation for manufacturing. Scope of Work: • Design of oil-filled distribution transformers (25 kVA – 100 kVA, 11kV / 433V) • Design of solar inverter duty step-up transformers (250 kVA – 500 kVA, 415V / 690V to 11kV) • Preparation of transformer design calculations (core size, winding design, impedance, losses etc.) • Preparation of GA drawings...

Description Of Project - HRID-AI is a low cost handheld device aimed at estimating ejection fraction using multimodal biosignals (ECG, seismocardiography, and cardiac acoustics). It uses a combination of biosensors to detect abnormalities in ECG, presence of abnormal heart sounds and their interpretation as well as usage of seismocardiographic signals to provide an estimate of Ejection Fraction. The principle has been verified through multiple studies done in reputed institutions The goal is rapid point-of-care triage for echo referral in emergency and low-resource settings in patients of Heart Failure with Reduced Ejection fraction We need your support, skills and expertise for sensor integration, embedded design, signal acquisition. Current Status- We have so far been able to dev...

We need an electronics engineer to implement a PCB design based on an existing schematic for a renewable energy monitoring project. The system measures electrical parameters from multiple sources including a solar panel, wind turbine, battery, and inverter output. The schematic already exists in PDF format and includes components such as Arduino Nano Every, MCP3903 ADC, ADS1115, WCS1600 current sensors, and HC-12 communication module. The task is mainly to follow the existing schematic, verify the design, and create a manufacturable PCB layout.

I need a custom single/multiple-turn loop antenna designed and working physical prototype fabricated. The target band is low frequency (LF), and the antenna will be used exclusively for near-field coupling applications. What I’m expecting from you is a complete, start-to-finish service: H-field antenna designed according to specified, fixed dimensions, selection of suitable conductor and core materials (as well as tuning capacitors or ferrite sheets if required), then the actual fabrication of a working custom prototype that I can test using my own setup. Deliverables • Simulation files (HFSS, CST, or similar) showing impedance, Q-factor and coupling coefficient at the target LF band • Manufacturing drawings or Gerber files if a PCB-based loop is the better approach ...

Solar PoE Switch: This PoE switch features an integrated MPPT solar charge controller and works directly with photovoltaic solar panels (max. 300W) and batteries for continuous PoE power supply to security cameras, bridges, LED lights, and more. Four PoE Outputs: Ports 1-2: 802.3af/en PoE+ 30W or 24V passive output; Ports 3-4: up to 802.3bt PoE++ 90W output; Total PoE budget: 120W. Intelligent Battery Management: Includes local battery status LEDs and remote battery management. Supports various battery types (lead-acid, lithium, or LiFePO4), 12V or 24V up to 10A. L2 Management: VLAN, STP, link aggregation, QoS, MAC/IP-based ACLs, and more. Managed via Web GUI, CLI, or SNMP Alarm I/O - Supports alarm input and alarm output triggered by temperature sensors, offline PoE devices, etc. Remote ...

Project Description (PCB Design) I am looking for a PCB designer to design a low-power IoT board for production line. Main requirements: Microcontroller: ESP32 with Wi-Fi or other Sensors: VL53L4CD Time-of-Flight laser distance sensor 10K NTC thermistor temperature sensor probe The sensors should be connected by wire to the PCB Low power consumption (battery-powered, using NiMH battery) Removable battery (NiMH ) Connector for external sensors (JST-PH 2-pin or similar) The laser sensor may be placed remotely with a cable from the PCB The PCB should low-cost manufacturing and low power consumption. Deliverables: Schematic design PCB layout BOM (bill of materials) Gerber files for manufacturing Basic firmware guidance if needed

I will provide the full Proteus project (schematic, PCB, libraries). Your task is to recreate that board in Altium Designer as an exact, bit-for-bit copy—same dimensions, traces, footprints and reference designators—so the migrated file can drop-in-replace the original. Once the design lives in Altium, prepare a complete production package for JLCPCB consisting of: • Gerber set generated with Altium’s CAM outputs • Pick-and-place centroid file (CSV) referenced to the board origin JLCPCB expects • Clean BOM that matches the Altium project and includes LCSC part numbers and JLCPCB’s preferred column headings Please keep the design locked as-is; no routing or placement tweaks. Organise the schematic sheets and PCB libraries so I can add compo...

I need an experienced PCB programmer to reprogram a multi-layer PCB for a coffee maker. The board is used for a coffee maker. Required Skills and Experience: - Proficiency in reprogramming multi-layer PCBs - Experience with radio frequency (RF) applications - Knowledge in embedded systems - Familiarity with brewing settings, temperature control, timing and scheduling, and pump control functionalities

I am ready to move from concept to production on a 55-Zoll LCD Digital-Signage-Screen and need an experienced hardware developer to guide the full electronics side. The panel size is fixed at 55", and my preferred control solution is a Huidu motherboard, Android 13, 14; if you have a strong case for an equivalent European board, we can discuss it— The job covers everything between the raw panel and a turnkey prototype: selecting the exact Huidu mainboard model, designing or adapting the logic board, defining all I/O (HDMI, USB, Ethernet, Wi-Fi, audio, power input, service port), creating schematics and PCB layout, and supplying a production-ready BOM with component alternatives that are immediately sourceable in Europe. I will also need the firmware flashed, tested, and demonstr...

I have a new IoT datalogger concept and need a full-fledged PCB layout that is ready to send straight to fabrication. The schematic is not fixed yet, so I’m relying on your board-level expertise to translate high-level requirements into a clean, production-ready design. What I already know • Form factor: credit-card sized (roughly 85 × 55 mm, single board). • Core: a low-power MCU or module capable of handling multiple digital and analog inputs. • Future-proofing: headers or pads for common temperature, humidity, and pressure sensors as well as optional wireless modules (Wi-Fi, Bluetooth, or cellular—final choice can be discussed once power budget is clear). • Power: ability to accept both rechargeable battery input and external DC (buck/boost circuit...

Dont send me AI content . I am using AI detection to check your proposals I need an engineer who knows both Pro-face Blue projects and Beckhoff TwinCAT HMI Server inside out. The task is to take my existing Pro-face HMI application, study how every screen, alarm and data point works, then rebuild the same functionality in the Beckhoff HMI environment so it talks smoothly to a new Beckhoff PLC. You will start by reviewing the current project files I provide, mapping all tags, recipes and alarms. From there, recreate the screens, navigation and any underlying logic in TwinCAT HMI. Along the way I expect you to flag any behaviour that will need re-thinking in Beckhoff, suggest work-arounds, and implement them. Because the line cannot afford long downtime, I want the converted HMI fully test...

Hi! We are looking for an electrician near Newcastle NSW. Kindly place your bid if you are able to do the task.

We are looking for a smart card specialist with proven experience encoding and programming IC cards using the ACS ACR38 Smart Card Reader. Please apply only if you have hands-on experience with smart card encoding and programming using ACR-series readers. This is not a general software development job. We specifically need someone experienced with IC card encoding/programming. Project Goal We need assistance to: Install and configure the ACR38 smart card reader on our computer Encode 5 sample IC cards containing user biodata Confirm that the encoded cards can be successfully read using our CRT-288 Creator Card Reader Train us on how to encode additional cards ourselves Sample Card Data Each card will store simple user biodata such as: Card ID Name Phone Number Age Gender The freelance...

I have an Arduino-based board that is powered from its own DC rail, yet it has to monitor several other DC lines whose grounds are completely separate. Right now I’m simply feeding each line through a voltage divider, and—unsurprisingly—the readings jump around or drift because the grounds are floating. The symptom is clear: inaccurate voltage readings that make the data unusable. What I need is a clean, reliable way to sense those isolated DC voltages without tying the reference points together. Whether that means introducing isolated amplifiers, optocouplers, tiny transformers, or another proven technique is up to you; I’m open to whichever approach gives stable, repeatable results and keeps the measurement side safe for the microcontroller. Here’s what I&...

Project Details ₹600.00 – 1,500.00 INR Bidding ends in 6 days, 22 hours Project Scope We would like to proceed with the prototype development of the SoilKare Agricultural Monitoring & Crop Quality Device as described in the engineering specification document we shared earlier. The system includes the following main subsystems: • STM32-based embedded controller • LTE communication module (SIM7600 or equivalent) • Soil monitoring sensors (pH, EC, moisture, temperature) • Water quality sensors (pH, EC/TDS, temperature) • Crop / leaf health sensors (chlorophyll / multispectral sensor) • Agricultural produce quality testing sensors (Brix, nitrate, crop moisture) • External ADC interface (ADS1115 or similar) • RS-485 interface for ind...

Project Scope We would like to proceed with the prototype development of the SoilKare Agricultural Monitoring & Crop Quality Device as described in the engineering specification document we shared earlier. The system includes the following main subsystems: • STM32-based embedded controller • LTE communication module (SIM7600 or equivalent) • Soil monitoring sensors (pH, EC, moisture, temperature) • Water quality sensors (pH, EC/TDS, temperature) • Crop / leaf health sensors (chlorophyll / multispectral sensor) • Agricultural produce quality testing sensors (Brix, nitrate, crop moisture) • External ADC interface (ADS1115 or similar) • RS-485 interface for industrial sensors (Modbus RTU support) • Camera module for pest detection (ima...

I need help turning three off-the-shelf modules now sitting in my glasses prototype—a USB 2.0 hub, a USB audio codec (mic plus stereo out) and a dual-channel Class-D amplifier—into one long, narrow board that can slide inside the temple arm. The space I have measured is roughly 80 mm × 15 mm, so the layout has to be linear rather than squarish, with components placed to keep the height profile as low as practical. The board will run exclusively from the host’s 5 V USB rail; no batteries or additional supplies are planned. Because this is for voice prompts and basic media playback, a standard-grade codec is fine—I’m not chasing audiophile specs, just dependable microphone input and clean stereo output that won’t hiss or pop when the amp is idle. A...

I need an experienced PCB designer to edit an existing single-sided PCB design. The current design is in Altium and requires modifications for testing and validation. Requirements: - Change component placement - Route traces Ideal Skills and Experience: - Proficiency in reading and editing Altium - Experience in PCB design, especially for testing purposes - Attention to detail and precision Please provide examples of previous work.

I need help turning three off-the-shelf modules now sitting in my glasses prototype—a USB 2.0 hub, a USB audio codec (mic plus stereo out) and a dual-channel Class-D amplifier—into one long, narrow board that can slide inside the temple arm. The space I have measured is roughly 80 mm × 15 mm, so the layout has to be linear rather than squarish, with components placed to keep the height profile as low as practical. The board will run exclusively from the host’s 5 V USB rail; no batteries or additional supplies are planned. Because this is for voice prompts and basic media playback, a standard-grade codec is fine—I’m not chasing audiophile specs, just dependable microphone input and clean stereo output that won’t hiss or pop when the amp is idle. A...

A new Siemens-based material-handling line is ready for commissioning and I need a clean, well-structured PLC project that focuses on data acquisition and logging. The controllers are Siemens S7 (TIA Portal) and the HMI layer will sit on WinCC (Unified or Classic—whichever you are most comfortable with). Core objective Capture and store real-time Operational status from drives, conveyors, and sensors so that maintenance and performance dashboards can draw from a reliable historical database. Inventory levels and movement tracking may be added later, so please structure tags and DBs with scalability in mind. Scope of work •⁠ ⁠Write the PLC logic that collects the required status bits, words, and alarms. •⁠ ⁠Build WinCC screens for live visualization, manual overrid...

I’m building an educational, IoT-enabled play mat designed especially for children aged three to five. When a child steps, taps or sits on different zones, I want the mat to recognise the interaction and trigger playful learning responses—lights, sounds or messages sent to a companion mobile app. Here’s what I need from you: • Hardware logic so each zone on the mat can reliably detect pressure or touch and send that data wirelessly. • Firmware that converts those raw sensor readings into tidy, low-latency events the app can understand. • Simple proof-of-concept software (mobile or web) that shows the events, plays a sound or displays a visual so I can demo the core learning activities. I’m open on the exact platform; ESP32, Raspberry Pi Pico W ...

I have six Brax RX2 amplifiers, one Brax DSP, several small electronic accessories and a pair of secondary batteries that all need to live together in a single, cohesive rack inside my vehicle. What I’m after is a complete CAD design that shows exactly how every piece will mount - actual size of each amplifier is 310mm x 200mm x 56 mm Material preference The structure must be a wood frame with acrylic highlights. Design priorities Aesthetics come first. Smooth lines, balanced symmetry around the six identical amps, a tasteful reveal for the DSP, plus discreet compartments or channels for the accessories and batteries so no loose wires are visible once the rack is in place. At the same time, I still need adequate ventilation clearances and service access, so hinges, removable p...

I need a production-ready wake-word model that reliably responds to “Hey Bobo” on both ESP32 and Raspberry Pi boards. Accuracy is critical: in a moderately noisy room it should trigger every time someone clearly says the phrase, yet ignore most unrelated speech. I still want slight phonetic wiggle-room—utterances such as “hello bo,” “hey bebo,” or “hello bebo” should wake the system as well—so fine-tuned threshold settings and a well-balanced dataset will be essential. What I expect from you • A trained wake-word model or firmware that runs in real time on ESP-IDF for ESP32 and on Raspbian/Ubuntu for Raspberry Pi without requiring cloud calls. • Demo code that shows how to load the model, stream audio from an onboar...

Description Of Project - HRID-AI is a low cost handheld device aimed at estimating ejection fraction using multimodal biosignals (ECG, seismocardiography, and cardiac acoustics). It uses a combination of biosensors to detect abnormalities in ECG, presence of abnormal heart sounds and their interpretation as well as usage of seismocardiographic signals to provide an estimate of Ejection Fraction. The principle has been verified through multiple studies done in reputed institutions The goal is rapid point-of-care triage for echo referral in emergency and low-resource settings in patients of Heart Failure with Reduced Ejection fraction We need your support, skills and expertise for sensor integration, embedded design, signal acquisition. Current Status- We have so far been able to dev...

I need a complete driver—both hardware interfacing notes and production-ready firmware—that talk to and power a 24-bit parallel RGB888 TFT LCD for displaying ONLY one colour across the entire screen at time. Scope • Hardware side: deliver a working MVP prototype driver for the display Maxen MX-B10HR501K-IS23 (datasheet attached), plus a concise schematic and BOM I can drop into Altium. • Firmware side: deliver clean, well-commented C/C++ code that initializes the panel, streams frame data at full 24-bit depth, and exposes a callable colour-calibration routine. Key requirements • Works with a standard RGB888 timing spec (VSYNC, HSYNC, DE, PCLK). • Runs on STM32 and TPS651 (Open for sugestions). • Colour calibration must let me adjust gamma an...

I need a self-contained unit that lets me key a number on a small touch screen and see that exact value appear instantly on a free-standing LED numerical tower. The goal is true plug-and-play functionality: once mains power is connected, the system should be ready without additional setup, drivers, or calibration. Core requirements • Input: a touch-screen number pad that accepts whole numbers (ideally up to four digits). • Display: an LED tower that shows the number in bright, easily readable digits; the tower must refresh in real time as I enter or change the value. • Form factor: bench-top or floor-standing, compact enough for shop-floor use, with a single power lead and a secure data link between screen and tower. • Reliability: stable operation for 8+ hours...

I need a complete concept-to-production design for a vending machine that can sell phones, tablets, gaming consoles, laptops and related accessories while also accepting returns through built-in lockers. The scope covers mechanical layout, locker integration, electronics for inventory control and payment, plus industrial styling that fits a standard retail footprint. Beyond the CAD and schematics, I require a fully costed bill of materials. This means identifying real-world suppliers, part numbers, lead times and unit pricing so we can estimate manufacturing cost at scale and set viability targets. Where multiple component choices exist, highlight the trade-offs (e.g., reliability versus unit price) rather than listing every option. Please include a detailed project proposal that outline...