Elektronikk Jobs

I'm looking for a skilled product design engineer to create a health and fitness-focused consumer electronic product, specifically a charging dock. Key Requirements: - Mechanical Design: Develop the physical structure and components. Ideal Skills & Experience: - Experience with consumer electronics, especially in health and fitness. - Strong background in mechanical design. - Proficiency in CAD software and rapid prototyping. - Ability to work collaboratively and communicate effectively.

I’m looking for an experienced embedded systems / hardware engineer to take over an existing ESP32-based NFC audio player project . ⚠️ Important clarification The physical PCBs are not currently available. I am looking for an embedded systems developer to review and complete an existing ESP32 NFC audio player project. The project already includes: • PCB design files (Gerber, BOM, Pick&Place, STEP) • Partial firmware for ESP32 • NFC reader and microSD audio architecture IMPORTANT This project is strictly limited to design audit and firmware work only. No PCB manufacturing, hardware assembly, or physical prototype is required. Project Scope Phase 1 – PCB & Firmware Audit • Review existing PCB design files • Review current firmware structure ...

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...

I need a full electromagnetic design for a dielectric lens – or a compact horn‑lens combination – that concentrates microwave energy at 2.45 GHz from an existing 1 kW source in a controlled lab/industrial setting. The goal is to maximise the energy delivered to a small focal spot (target ≈ 2–3 cm at a defined distance), so the work must revolve around: Directivity Gain High power‑density focusing at the target spot Please model, optimise and document the antenna‑lens using a recognised 3‑D EM solver such as CST Studio Suite, HFSS, FEKO or similar. I will rely on your simulations to validate return loss, beam pattern, peak gain and the size of the focal region before we commit to fabrication. Deliverables Native simulation project files and exported 3‑D geometr...

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.

Embedded Hardware & Firmware Expert Needed for Industrial 3-Phase Pure Sine Wave Inverter Project Overview: I am seeking an experienced Power Electronics and Embedded Systems Engineer to design the hardware and firmware for an Industrial-Grade 3-Phase Pure Sine Wave Inverter. The project involves designing multiple PCBs (MCU Motherboard, IGBT Driver, Thyristor Driver, and Sensing Interface) and developing robust firmware for system control, monitoring, and HMI integration. 1. Hardware Specifications & PCB Requirements: You will be responsible for designing the following industrial-grade PCBs: • MCU Motherboard: Based on Texas Instruments (TI) or Microchip architecture. Must handle PWM modulation and system logic. • IGBT Driver PCB (3-Phase): Industrial grade, optimized fo...

The event is around the corner and I need a dependable pair of hands to collect our medium-sized banner (roughly 3–6 ft), drive it to the venue, install it neatly in an indoor space, then bring it back to the office once the program wraps up. Everything is already packed and ready; timing and care are what matter most. You’ll pick the banner up from my office, confirm its condition, secure it during transport, set it up so it sits straight and wrinkle-free, and return it right after the event ends—we’ll agree on precise times in advance. A reliable vehicle is essential. Whether you drive a car, van, or truck doesn’t matter as long as the banner travels flat and clean. You should also feel comfortable handling simple assembly hardware (standard stand and ...

I require an experienced electrical engineer to upgrade and design systems for an industrial facility. Key tasks include: - Upgrading power distribution and lighting systems - Designing electrical systems to enhance efficiency and safety Ideal Skills and Experience: - Expertise in electrical design for industrial facilities - Proven track record in system upgrades, particularly in power distribution and lighting - Knowledge of industry standards and safety regulations Please provide examples of past work and relevant certifications.

I am looking for an embedded systems developer to write Arduino code to communicate with the MCP3903 energy measurement IC from Microchip using the SPI interface. The goal of the project is to read voltage measurements from three channels of the chip and output the values through the Arduino serial monitor. Hardware: Arduino board (Arduino Uno or compatible) MCP3903 analog front-end IC SPI communication Requirements: The code should: Initialize SPI communication between Arduino and the MCP3903. Configure the MCP3903 registers correctly for basic operation. Read measurement data from the following channels: CH0 CH1 CH2 Convert the raw ADC data into readable voltage values (or at least raw measurement values). Print the measured values continuously to the Arduino Serial Monitor...

Lab EMG - Electromyogram I have result from the lab attached labeled Jennah Introduction Today, we will use the Biopac amplifiers at each station to collect electromyography data, which we will then explore and analyze using Matlab. In this lab, you will investigate the EMG from two muscles resulting from isometric muscle contractions. Matlab code for collecting EMG data (BioPacEMG.m) is posted on Canvas. Verify that your equipment is working correctly before attempting to collect any actual data. Task 1: Data Collection Procedure Before testing your setup, make sure that the power light turns on when you flip the power switch on your amplifier. Dr. Adamovich will explain the proper amplifier settings at the beginning of class. After ensuring the proper locations for electrode placement ...

Necesito que me desarrolles el diseño completo de una máquina de llenado basada en Arduino para dos tipos de líquidos viscosos: zumo y aceite. El rango de dosificación debe ir de 10 ml a 120 ml y la velocidad de dispensado ha de ser lo bastante alta para trabajar en línea con una cinta transportadora: cada vez que una lata pase, el sistema debe verter la cantidad programada sin detener la cinta. Requisitos clave • Detección de lata: prefiero un sensor inductivo u óptico; acepta sugerencias si logras mayor fiabilidad. • Control de volumen: quiero poder configurarlo por código y, opcionalmente, afinarlo con un potenciómetro frontal. • Compatibilidad de líquidos: las piezas en contacto con zumo y aceite ...

I want to build a small, self-contained charging station that wakes up only when it “sees” a bottle and a can. The core will be an Arduino (any recent 32-bit board is fine) tied to a solar panel and battery pack. A lightweight AI vision module or camera running something like TensorFlow Lite or OpenCV should continuously—or on a duty-cycled basis—look for bottles. The moment a bottle is detected, the system must move straight into the charging routine without waiting for external confirmation; no alerts, no logging, just automatic activation. What I need from you • Complete Arduino firmware that integrates the vision trigger with the charge-controller logic. • A schematic / wiring diagram showing how the camera, solar panel, charge controller, and any...

I have already drafted a full specification for a simplified television remote control aimed at older users, complete with ergonomics, button layout, and overall product vision. While I finish the patent application, I now need a skilled partner to bring the electronics and software to life. On the hardware side, the priority is circuit design. I will share detailed functional blocks, power-budget targets, and regulatory constraints; you would translate these into a clean schematic that is ready for board layout (I will also welcome help on the actual PCB routing once the schematic is locked). For software, I need both the embedded code that will run on the microcontroller and the on-screen user interface logic that appears on the TV. Simplicity and reliability for elderly users are the ...

I need an accurate and professional electrical wiring diagram for my installed DIY grid-tied solar array system. The deliverables should include: - Service panel connections - Grounding schedule - Details required for electrical inspector approval This involves solar panels and an inverter, so experience in designing layouts and knowledge of local inspection requirements is essential.

**Project Title:** ESP32 Based Educational Robotics PCB Design **Project Description:** I am looking for an experienced PCB designer to design an educational robotics development board. The board will be used for teaching robotics, IoT, and programming to students . The board should be based on an ESP32 module and must integrate multiple components and connectors so students can easily connect motors and sensors. The board should also be compatible with Scratch, so students can control the hardware using Scratch blocks. The freelancer should also create the required firmware or extension file needed to connect the hardware with Scratch. **Key Features Required:** 1. ESP32 module for WiFi and Bluetooth connectivity 2. Motor driver for 2 DC motors 3. Battery connector for rechargeable L...

I have an ESP32 dev board on my bench and need it turned into a compact sensor hub. The entire focus is sensor integration—specifically motion & proximity plus light & sound. Some of the devices will be hard-wired to GPIO pins while others should connect wirelessly, so the firmware must handle both connection paths seamlessly. Here’s exactly what I need delivered: • Well-commented source code (Arduino-ESP32 or ESP-IDF) that polls each sensor, filters noise, and publishes readings over Serial and MQTT. • A clear wiring / pin-out diagram for the hard-wired sensors. • Configuration notes that let me pair or re-pair any wireless sensor modules. • A short README covering library installs, flash commands, and expected output. Acceptance criteri...

Project Brief: Kinetic Pulse PCBA 1. Core Functional Requirements Power Input: Must accept AC input from a linear induction coil (approx. 3,000 turns). Energy Storage: Must use a Supercapacitor (1.5F - 2.0F / 5.5V) as the sole energy storage—No chemical batteries. Power Regulation: A boost converter must provide a stable 3.3V rail even as the capacitor discharges down to 0.7V. Power Efficiency: The entire system must be "Nano-power." Total standby/idle current must be < 1µA to ensure the device holds a charge. Timing Logic: An internal timer must trigger a 100ms audible alert (Buzzer) every 40 seconds. Pressure Sensing: The system must interface with a Force Sensitive Resistor (FSR). State 1: Visual Green LED alert when pressure is applied (> 50g). State 2: Visu...

I own an original KeyMouse Track, now discontinued, and would like to bring it back to life. Reference product: Intended production size: Only for personal use at this point. However, where possible and cost-effective, design decisions should consider future scalability to larger production runs. Available artifacts: - STL Files (I don't know whether these files are suitable for manufacturing, or some earlier draft): - Assembly instructions: - Original PCB which can be purchased: - Track ball sensor module image and description: - Custom-made wrist extension CAD files: Deliverables: - Deliver cleaned and validated STL files suitable for reliably producing a functioning unit via 3D printing. with the external wrist extension integrated - Full reverse engineering into par...

I’m putting together a very small-scale project on an Arduino Uno and simply need a clean, well-commented sketch that switches an LED on and off. No elaborate libraries or peripherals—just straightforward LED control that compiles in the current Arduino IDE and can be uploaded over the standard USB cable. What I expect from you • An .ino file that drives either the onboard LED (pin 13) or an external LED on any digital pin I can redefine at the top of the sketch. • Clear inline comments explaining each step so a beginner can follow the logic and reuse the code in future experiments. • A short read-me noting the exact IDE version you compiled with and the wiring diagram if you choose an external LED. That’s all—simple, reliable, and ready to ru...

I'm looking for an experienced audio technician to connect my audio separates to an integrated amplifier. Requirements: - Connect a CD player, turntable, equalizer, and tape deck to an integrated amplifier. - Determine and use the appropriate cables and connections (RCA, XLR, Optical, etc.). - Ensure optimal sound quality and setup. Ideal Skills and Experience: - Expertise in audio systems and amplifiers. - Familiarity with various audio connections and equipment. - Experience in setting up and connecting multiple audio devices.

I’m developing a compact data-acquisition module and need a local electronics engineer in Austin who can take the mixed-signal front-end from concept to ready-to-fab documentation. The heart of the job is a clean, low-noise analog section feeding a high-resolution ADC, with the digital side handling basic buffering and a simple SPI or I²C hand-off to my existing microcontroller board. We’ll meet in person for the initial requirements review and again when hardware is on the bench so rapid tweaks are possible. I already have rough performance targets—sampling at 1Hz, 12–16-bit resolution, and a 12V single-rail supply—but I’m looking for your guidance on component selection, input protection, and clocking strategy to hit those numbers without over-en...

Project Overview: We are developing a motor controller PCB for an educational differential-drive mobile robot used in university teaching and research. The board is based on a validated prototype with proven firmware, and we now need a production-quality PCB designed for manufacture and CE/UKCA certification. A detailed hardware specification document will be provided to the selected designer. This brief summarises the scope and complexity of the project. Board Function: The board controls two DC gearmotors with closed-loop velocity control, monitors battery voltage, manages safety systems (emergency stop, timeout, heartbeat), and communicates with a host computer or single-board computer over USB. It also provides regulated power to downstream devices via a USB-C Power Delivery source po...

I need an expert to overhaul the control electronics on our solid swimming pool cover and modify the control circuits. The goal is to improve existing functionality and enhance automatic cover operation. Key tasks include: - Improving existing control circuits - Enhancing automatic cover operation Ideal Skills and Experience: - Proficiency in electronics and control systems - Experience with automation and control circuit modification - Knowledge of pool cover or electric gate systems - Strong problem-solving skills

I want a simple two-channel radio link that can do just two things reliably: 1) vary the speed of my brushless DC motor through its ESC (accepts S-Bus or standard PWM) and 2) toggle a single relay on or off. Hardware • I already have the motor, ESC, and relays. • You may choose Arduino, Raspberry Pi, or any Adafruit board—use whichever keeps the build small, inexpensive, and stable. Radio requirements • The handheld transmitter must let me select the operating band with a physical switch: 2.4 GHz, 900 MHz, or 433 MHz. • If LoRa is the cleanest way to hit those bands, great—just make sure the LoRa hop gives me at least a 1 000 ft (≈300 m) clear-line range. Long-range reliability is more important than data rate or extreme power savings...

I’m building a research-grade quantum simulator in Python and need a robust codebase that can accurately model multi-qubit circuits, apply standard gate operations, and return state-vector or density-matrix outputs. Whether you prefer to work directly with NumPy/SciPy or leverage existing open-source frameworks such as Qiskit, Cirq, or QuTiP is completely up to you; the key requirement is clean, well-documented code that runs reliably under Python 3.11. Please provide: • A modular simulation engine capable of handling at least 10-15 qubits, with optional noise or decoherence modelling • A clear, Pythonic API for defining circuits, executing simulations, and extracting results (probabilities, expectation values, etc.) • Unit tests plus a concise README that cover...

We are seeking an experienced electrical engineer to create four comprehensive study reports: Steady State Study Report, Dynamic Study Report, Power Quality and Protection Study Report, and Earthing Study Report. The ideal candidate will have a strong background in electrical engineering and excellent report writing skills. The reports should be detailed and accurate, providing insights into the electrical systems and infrastructure. PSCAD for dynamic studies and PSS SINCAL for steady state, protection, power quality, and earthing studies. 1. Steady State Study Report Covering load flow, voltage profile, thermal loading, reactive power performance, and contingency review. 2. Dynamic Study Report Using PSCAD, including assessment of plant response to disturbances, fault ride-through perf...

Project Objective: Develop a 100% functional, industrial-ready prototype of a wearable holographic smartphone (bracelet). The goal is high-end performance (Mid-range Samsung level) with zero wasted costs on software licenses. I need a perfect balance between high-quality optics and cost-optimized hardware. ​Core Hardware & Memory: ​Processor: RK3566 (Optimized for performance/thermal balance). ​Memory: 8 GB RAM and 128 GB Storage (Must be fast and reliable). ​Holographic Engine: Hybrid Laser/Optical system with Japanese DCRA plates. Target: Sharp 6-inch floating image at 15cm distance. ​Sensors: Full sensor suite (Ambient Light, Proximity, GPS, Gyroscope) for a 100% smartphone experience. ​Zero Extra Costs & Quality Optimization: ​Software: Use Open Source Android (AOSP) + Google S...

I'm looking for an experienced PCB designer to create a single-layer PCB for a consumer electronics radio application. The PCB will need to incorporate sensors. Key Requirements: - Design a single-layer PCB - Application: Consumer electronics (radio) - Must include sensor components Ideal Skills and Experience: - Proficiency in PCB design software - Experience with consumer electronics, especially radio devices - Strong understanding of sensor integration on PCBs - Attention to detail and ability to meet deadlines

I need a design review for an electric heater with fan and heating element due to field failures. The specific issues are overheating and electrical shorts. Key Focus Areas: - Electrical Circuitry: Review and identify design flaws - Overheating: Analyze potential causes - Electrical Shorts: Investigate and recommend fixes Ideal Skills and Experience: - Expertise in electrical engineering - Experience with heating appliances design - Problem-solving skills for safety issues

I am building DigitScale IA, a dedicated body-composition scale that goes beyond mere weight and zeroes in on bone density. The goal is a standalone hardware device—complete with its own enclosure, sensing module, firmware and simple companion interface—that can provide reliable, non-invasive bone-density readings each time a user steps on it. Your expertise in sensor selection, PCB design, firmware development and calibration will shape the entire product. Feel free to propose capacitive, impedance-based, ultrasound or hybrid approaches; accuracy and repeatability are the metrics that matter most. Bluetooth LE connectivity is preferred so users can pull their data into a mobile app later, but a basic on-device display will suffice for the first iteration. Deliverables &b...

​Project Description: ​I am looking for a PhD-level Photonics/Quantum Engineer to develop a 100% accurate simulation and a certified hardware list (BOM) for a specific optical experiment. ​The goal is to analyze the fidelity of Gaussian States (Squeezed/Coherent) after a 10km fiber-optic delay line using a time-domain multiplexing approach. ​The simulation MUST include and validate the following chain: ​Optical Source: Phase-stable Laser (CW or Pulsed) at 1550nm + Squeezing Source. ​Encoding Stage: High-speed modulation (AM/PM) with specific Vpi and insertion loss constraints. ​Delay Line: 10km SMF-28 Fiber (including Rayleigh scattering and phase-drift modeling). ​Interference Stage: Local Oscillator (LO) synchronization and balanced beam splitting. ​Detection: Balanced Homodyne Detector ...

I’m building a pair of DIY tower speakers and need a custom-designed, two-layer PCB that ties everything together. The board must fit comfortably inside the cabinet, so please keep your layout within 260 mm (W) × 190 mm (H) and use 2 oz copper. All core functions—amplifier stages, passive/active crossover networks, and an onboard Bluetooth module—have already been mapped out in a block diagram that I will share. Your job is to translate that diagram into a production-ready board, routing power and signal paths cleanly and meeting good audio-grade practices for noise, thermal management, and grounding. Once the schematic and layout are complete, I’ll need the standard fabrication package: • Gerber and drill files • Read-me with stack-up and cop...

Project Brief: Kinetic Pulse PCBA 1. Core Functional Requirements Power Input: Must accept AC input from a linear induction coil (approx. 3,000 turns). Energy Storage: Must use a Supercapacitor (1.5F - 2.0F / 5.5V) as the sole energy storage—No chemical batteries. Power Regulation: A boost converter must provide a stable 3.3V rail even as the capacitor discharges down to 0.7V. Power Efficiency: The entire system must be "Nano-power." Total standby/idle current must be < 1µA to ensure the device holds a charge. Timing Logic: An internal timer must trigger a 100ms audible alert (Buzzer) every 40 seconds. Pressure Sensing: The system must interface with a Force Sensitive Resistor (FSR). State 1: Visual Green LED alert when pressure is applied (> 50g). State 2: Visu...