Elettronica Jobs

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...

Project Brief: Stealth-Modified Automatic Parking Disc (Certified for Public Road Use in Germany) Project Goal: I want to technically modify a certified electronic parking disc approved for use in Germany (must have an official certification number and ECE approval), so that it continues to automatically update the displayed parking time even after the vehicle has been parked. This modification must be invisible and undetectable from the outside, meaning the device must look and behave like the original product to any observer or parking enforcement officer. Background: Standard electronic parking discs are designed to detect when a vehicle is turned off and then freeze the display at the next permissible half-hour mark. This allows parking enforcement to determine how long the car has b...

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...

Step1: Downloaded file to be saved in a folder /replace it(Skill Pending). Step2: Open a new excel file. Step 3: Load from the downloaded File>> New Excel file>> Data>> Get Date>>From file>> from Excel workbook>> Load Step 4: Filter Location(Except Netherlands I need all location but Netherlands line items should not be deleted on the worksheet, Filter Oracle Grade- exclude #NA, M5, M6- line items should not be deleted on the worksheet) Step 5: Endorsement Status to be displayed for Skill wise as well as resource wise, How the dashboard to be looked like Need to show Skill pending resources Endorsement pending resource along with supervisors Proficiency level pending resources Primary skill pending resources Last updated >1 Year resources ...

I need a complete, production-ready design for a 100 W LED luminaire that will serve as the main light source in a living-room setting while still being robust enough for occasional outdoor use. The fixture must deliver high lumen output with excellent efficacy, maintain color stability over time, and integrate smoothly with common smart-home ecosystems (Wi-Fi, Zigbee, or similar). Scope of work • Component selection: high-efficiency LED array, constant-current driver, thermal interface materials, optics, housing, and an IP-rated enclosure or coating suitable for indoor/outdoor crossover use. • Electrical design: full schematic and PCB layout for the LED driver, MCU or smart-control module, surge and polarity protection, and any required EMC filtering. • Thermal manag...

I'm looking for an experienced developer to build a weather monitoring system using a Raspberry Pi Pico. The system should interface with an RM Young 05108 Anemometer to measure wind speed and direction, as well as a temperature and pressure sensor. Requirements: - Use I2C for data transmission - Utilize an OLED display to visualize: - Wind speed and direction - Temperature and pressure - All data on one screen Ideal Skills & Experience: - Proficiency with Raspberry Pi and I2C communication - Experience with OLED displays - Knowledge of weather sensors and data integration - Strong programming skills, preferably in Python Please provide samples of previous similar work.

We are seeking a highly competent Freelance Automation Engineer to support the design, development, programming, and commissioning of PLC & SCADA systems for wastewater treatment role requires a results-driven professional who can independently manage automation scope—from control philosophy development to site commissioning—while ensuring full compliance with industry ResponsibilitiesDesign and develop PLC & SCADA architecture for wastewater treatment control philosophy, IO lists, cause & effect matrices, and system PLC programming, HMI/SCADA configuration, and system FAT, SAT, troubleshooting, and commissioning and ensure compliance with IEC, ISA, and industrial automation with electrical, instrumentation, and process engineering control logic for efficien...

I want to put an end to guessing when my plants need water by building a small, battery-friendly device that measures soil moisture, pushes the reading to the cloud, and emails me whenever the level drops below a threshold I can set in a companion mobile app. Core features • Soil moisture detection with reliable, calibrated readings • Wi-Fi or BLE link from the probe to the cloud • Email alert generation (no SMS or push needed) • Mobile-only dashboard that shows current moisture %, historical trend, last alert time, and a slider to adjust the alert threshold I’m open to an ESP32, ESP8266, or similarly low-power MCU and prefer code in Arduino/C++ or MicroPython if that speeds things up. Low standby current, deep-sleep cycles, and a compact PCB (or even a ...

I am looking for an experienced Mechanical / Fire Protection Engineer to perform a Smoke Extraction System Simulation for a building project. The objective is to simulate and evaluate the performance of the smoke exhaust system under fire conditions to ensure compliance with applicable fire safety standards. Scope of work Perform CFD simulation (e.g., using ANSYS Fluent, PyroSim, FDS, or equivalent software) Simulate fire scenarios based on assumed fire load and location Analyze smoke layer height, temperature distribution, visibility, and smoke spread Evaluate effectiveness of smoke extraction fans and air replacement strategy Verify system performance against relevant codes (NFPA / SFPE / local authority requirements) Provide recommendations if system performance is insufficien...

I need a reliable local professional to help me locate and secure the best-value Vivo smartphones in the market. Your mission covers the entire procurement chain—from finding legitimate suppliers to making sure every handset meets my quality expectations before I commit to purchase. Here is what I will count on you for: • Product sourcing: identify shops or distributors that stock current Vivo models at competitive wholesale or retail rates. • Price comparison: gather written or photographic proof of prices from at least three vendors so I can see the spread clearly. • Quality check: inspect device packaging, seals, and IMEI authenticity; power on the units when permitted; provide high-resolution photos or short clips as evidence. My priority brand is Vivo, but i...

Please be careful, you must create the 3 real PCBs; we are not interested in virtual projects. After the 3 PCBs have been successfully tested here in our office, we will release the money following the rules of freelacer.com. I will agree on the cost of the work and the time of execution with the developer. I've already built some prototypes of a circuit capable of switching a single 230 V, 16–30 A line to 4, 8, or 12 outputs—without power loss—but none of them have reached the standards I expect. I have schematics, calculations, thermal measurements, and test logs: enough material to clarify every technical detail and speed up your work. I need a senior designer who can transform all this into a final solution, complete with ESP32 firmware, a multilayer PCB (4 or...

We are seeking a highly skilled Mechatronics & Embedded Systems Engineer responsible for motor calibration, mechanical-electronic system integration, PCB quality enhancement, firmware optimization, and robust communication architecture development. The role demands strong cross-disciplinary expertise in electromechanical systems, embedded firmware, and wireless communication protocols. This position requires hands-on execution capability, system-level thinking, and ownership from prototyping to validation. --- Key Responsibilities 1. Motor Control & Calibration - Calibrate and tune BLDC motors (FOC / trapezoidal control). - Develop and optimize motor control algorithms. - Perform current sensing, torque tuning, PID optimization, and efficiency improvement. - Analyze motor performa...

I need a working prototype of a compact pool-cleaning robot designed, built, and shipped to Pune by 20 March. Its two core tasks are debris collection across the pool floor and reliable wall-climbing so it can scrub and vacuum vertical surfaces as well. The unit must run on a rechargeable battery pack—no cords in the water—and be steered with a simple handheld RF remote (forward, reverse, left, right, start/stop). A smartphone app or timer isn’t necessary; keeping the hardware lean is key because the entire build, plus packing and freight, must stay within an 18 k INR ceiling. I’m open to clever use of 3-D printed housings, sealed brushed or BLDC thrusters, and readily available filters to hit that cost target while ensuring waterproof integrity. Good buoyancy cont...

I am building a robot named GrowBuddy using ESP32. I need an experienced embedded developer to write clean and optimized firmware for the ESP32. Project Overview: GrowBuddy is a mobile service robot with the following features: 1. Face-following movement (commands will be sent from Android app via WiFi) 2. Obstacle avoidance using Ultrasonic sensor (HC-SR04) 3. Motor control using L298N motor driver 4. Servo motor control for grabbing objects 5. WiFi communication between Android app and ESP32 6. Stable and responsive real-time movement 7. Clean modular code (well structured, commented) ⸻ Hardware Being Used: • ESP32 Dev Board • L298N Motor Driver • 2 DC Motors • Ultrasonic Sensor (HC-SR04) • Servo Motor (for grabbing arm) • WiFi communication ...

Design Brief: High-Reliability Bluetooth Roadbook & Multimedia Controller Project Code: RALLY-MEDIA-V3 Target Platform: PCBA (Automotive / Rugged Environment) 1. Project Vision The goal is to create a high-performance, ultra-compact Bluetooth Low Energy (BLE) controller for motorcycle navigation (Roadbook) and multimedia. The device must replace high-end commercial modules (like Rallyable) with a custom, cost-effective solution that survives the electrical noise and physical vibration of off-road motorcycles. 2. Scope of Work The engineer must provide a complete PCB design (Schematic + Layout) optimized for JLCPCB SMT Assembly Service. Two design paths are considered: Path A (Integrated): Full custom PCB with nRF52840 SoC and tuned antenna. Path B (Carrier/Baseboard): A "Shiel...

ALFA NETWORKS ADAPTOR OR SIMILAR IS A REQUIREMENT I need a cyber sec expert who already owns an Alfa Networks USB adapter (or a comparable injection-capable card) to carry out a controlled WiFi-based denial-of-service exercise. The goal is to you use the Kali Live boot with persistence USB stick, and the Alfa Networks adaptor, to launch a Denial-of-Service attack on your own mobile phone (or smart TV etc) in order to prevent it accessing your home WiFi. its just a simulation so we only need 4 screenshots. I ordered my alfa networks adaptor but it got delayed with the shipment so now need help if you own one. ALFA NETWORKS ADAPTOR OR SIMILAR IS A REQUIREMENT

I’m working through the combinational-circuits portion of my digital design course and need hands-on support to design and fully implement multiplexers and demultiplexers. The goal is to move from logic-level concepts all the way to a working circuit that can be demonstrated in the lab. Here is what I’d like from you: • A clear derivation of the truth tables, Boolean expressions, and any Karnaugh-map (or equivalent) minimisation that leads to the final gate-level schematic. • An HDL version of the same circuit (Verilog or VHDL—whichever you prefer) that compiles cleanly and is ready for simulation. • Simulation results that verify correct operation for every input combination; ModelSim, Vivado, Quartus, or Logisim waveforms are all acceptable. &bull...

I want help building a simple zigbee device to use as a smart thermostat. its using a esp c6 super mini, screen, 2 buttons and a presence sensor. I have tested all the wiring and all works and got it showing on the ESP. The part i want, is to turn it into a Device, that when you connect it to Home assistant through Zigbee. it shows on the UI of Home assistant boxes you can fill in. One for Room Temp sensor (external sensor so you enter a device ID to read the state) One for Boiler ID (to read if the Boiler is currenttly on or off and show a icon on screen to show its state) and one to enter the Smart TRV device id, so what temp i set on the Thermostat it then updates it to the TRV. And to give the Presence Sensor a Device ID, so i can use it to set Automations in Home assistant manual...

I’m building out the engineering team for our AI-driven startup and I need a dedicated embedded developer who can take full ownership of the automotive side of our product line. Your day-to-day work will revolve around three core responsibilities: writing robust firmware that brings our AI features to life, integrating that code seamlessly with sensors and control units already in the vehicle stack, and collaborating on hardware design decisions so everything works together flawlessly. We are moving fast, so I’m looking for someone who is comfortable working full-time alongside our in-house data science and mechanical teams, iterating quickly from prototype through to production-ready boards. Expect a hands-on role that blends coding, debugging on target hardware, and validati...

I recently purchased a new turntable and receiver and am having difficulty setting it up in my new Condominium. Need some assistance. Thanks Jeff

我正在开发一款带有智能 LED 的硬件模组，主控ESP32，需要一位经验扎实的硬件工程师协助完成从原理图到 PCB 连接图的设计。核心需求如下： • 智能 LED 电路：请为多颗可寻址 LED 设计驱动与电源部分，确保亮度与色彩控制稳定，并预留固件升级和热管理方案的接口。 • 无线通信接口：电路板需同时支持 Wi-Fi 与蓝牙，方便后期通过手机 App 或云端进行调光与状态监测。 • PCB 设计：输出完整的原理图、布线文件（Altium Designer 或 KiCad 均可）、Gerber、BOM 以及关键布线规范说明，力求尺寸紧凑、EMI 控制良好。 • 生产可行性：器件选型应以量产常用料为主，并在文档中标明替代料号。 • 交付物： 1. 原理图（PDF + 源文件） 2. PCB Layout（源文件 + Gerber） 3. BOM 与简要成本预估 4. 设计说明书（含测试要点与校准建议） 如有成功设计智能灯带、氛围灯或类似消费电子产品的经验，请在回复中简述项目要点与所用工具版本。我会根据方案完整度与以往案例选择合作。

We need a PCB designed in KiCad 8.x for a compact RS-485 sensor node that measures temperature and humidity. Quality, DFM compliance, and proper protection circuits are important. Board overview: 55 × 30mm, 2-layer FR4, black solder mask, lead-free HASL MCU: ATtiny1614 (SOIC-14) Sensor: SHT41 temperature/humidity (DFN 1.5×1.5mm) Communication: RS-485 half-duplex via MAX3485 transceiver Connectors: 2× RJ45 (daisy-chain in/out) + 1× JST-SH 4-pin (external sensor port) Power: 5V input via RJ45 → AMS1117-3.3 LDO → 3.3V Full protection circuits: reverse polarity (P-MOSFET), PTC fuse, TVS diodes (RS-485 + VCC + UPDI), fail-safe biasing, ferrite bead EMI filter Thermal isolation between sensor and electronics (routed PCB slot + ground pour keepout) 3-bit solder ...

I need an experienced programmer to develop a PLC and HMI system for quality control processes using a Fuji SPF PLC and Fuji Monitouch HMI. Key requirements: - Program Fuji SPF PLC - Develop HMI screens on Fuji Monitouch - Implement quality control logic and processes - Ensure system is reliable and user-friendly Ideal skills and experience: - Expertise in Fuji PLC and HMI - Background in quality control automation - Strong programming skills - Attention to detail and problem-solving ability Looking forward to your bids!

ALFA NETWORKS ADAPTOR OR SIMILAR IS A REQUIREMENT I need a cyber sec expert who already owns an Alfa Networks USB adapter (or a comparable injection-capable card) to carry out a controlled WiFi-based denial-of-service exercise. The goal is to you use the Kali Live boot with persistence USB stick, and the Alfa Networks adaptor, to launch a Denial-of-Service attack on your own mobile phone (or smart TV etc) in order to prevent it accessing your home WiFi. its just a simulation so we only need 4 screenshots. I ordered my alfa networks adaptor but it got delayed with the shipment so now need help if you own one. ALFA NETWORKS ADAPTOR OR SIMILAR IS A REQUIREMENT

My WinCC SCADA server still has free tags available, and I want to bring a second Siemens-based machine online so I can capture its data in real time. Your task is to establish the link between that PLC and the existing WinCC installation, map the new tags, and build a clear graphical dashboard inside WinCC. Key points for the dashboard: • Parameters: Temperature, Humidity, Production Rate and Weight (displayed visually with live updating trends, status colours, and historical recall). • Layout: a clean graphical interface that fits naturally alongside the current WinCC screens. Once the PLC is communicating and the tags are confirmed, I’ll need: 1. A working WinCC screen showing both live values and 24-hour trends. 2. Basic alarm limits configured so out-of-r...

We are looking for an experienced IoT/ESP32 developer to assist with hardware connections and configuration for a Weather Monitoring System. We already have the hardware components available. We need guidance and support specifically for: • Proper sensor wiring with ESP32 • Power management guidance • Basic testing to ensure correct readings This is not a full development project — the primary focus is on hardware integration and correct connections. ⸻ Hardware Components: • ESP32 • BMP280 (Pressure + Altitude) • DHT11 (Temperature + Humidity) • MQ135 (Air Quality) • Rain Sensor ⸻ Scope of Work: • Guide on wiring setup • Assist in verifying sensor readings • Help troubleshoot if readings are incorrect • Sug...

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I need a seasoned embedded-systems engineer to help me complete and refine firmware for an industrial solar tracking pilot we are about to install in the field. The hardware platform is an STM32-based control board that already handles basic I/O; what I need next is rock-solid actuator control logic and tight integration with the rest of the system. Key priorities • Linear-actuator position control is the single most critical feature. Accurate sun-tracking algorithms must translate to smooth, repeatable movement, end-stop detection, stall handling, and safety interlocks. • The board talks over a CAN bus to a Linux-based gateway. Your code should package position reports, health data, and fault codes into our existing CAN message set and respond to incoming commands in real t...

Project Overview We are building a V1 industrial ESP32-S3 pulse controller for self-service car wash and vacuum stations. The device receives paid commands from a backend (MQTTS/HTTPS), and generates deterministic “coin pulses” into existing industrial controllers. This is not a hobby prototype. It is a field-deployed V1 pilot that must remain stable for years in harsh environments. Operating Environment • Outdoor installation (freeze/heat cycles) • Electrical noise: motors, pumps, inductive loads, relays/contactors • Expected ambient: −30°C to +40°C (design margin required) • Inside sealed IP enclosure can rise due to self-heating (design for up to ~+70°C internal with reasonable margin) • Humidity / condensation risk (design ...

I'm looking for an experienced robotic engineer to design a fully autonomous indoor robot. The primary function of the robot is yet to be determined, but it could involve household tasks, industrial automation, or entertainment. Key requirements: - Design for fully autonomous operation - Suitable for indoor environments Ideal skills: - Robotics design and engineering - Expertise in AI and automation - Experience with indoor navigation systems Please share your relevant experience and approach to this project.

I need a compact, single-fire line smart light switch designed around the ESP32-C3, strictly for residential use and housed in a PC-V0 enclosure. Because there is no neutral wire available the power stage has to ride on the leakage current, so I am counting on a proven AC-DC buck such as the Hi-Link HLK-PM01 (or similarly tiny module) and a reliable bypass-capacitor network that keeps the MCU alive even with very light loads attached. Switching must be silent and fast: think BTA16 (or comparable TRIAC) driven through an opto-isolated MOC3041 gate. Absolutely no mechanical relays are allowed. Behind the faceplate, the board should hide an HLK-LD2410 microwave radar sensor; its trigger will be combined with a capacitive interface that recognises multiple touch points on the glass front. Sp...

I’m preparing a utility patent for a four-compartment storytelling device that embeds full holographic capability, and I need a seasoned patent drafter to turn my concept into a rock-solid USPTO filing. The core of the invention is the holographic technology—everything else in the mechanism, from the segmented compartments to the narrative flow, exists to serve immersive, projection-based visuals aimed at classroom and training environments. While the structure naturally lends itself to broader entertainment or marketing spin-offs, this first filing must showcase its value as an educational tool that lets learners explore different “chapters” of a lesson in separate compartments, each activating a unique holographic scene. What I already have: • A rough s...

Hello, I am seeking a qualified solar design professional or engineering firm to produce a complete, permit-ready off-grid solar + battery + generator design package for a residential project located in Coconino County, Arizona (Williams, AZ area). This is an off-grid installation (no utility interconnection). The design must be suitable for AHJ submission and permit approval in Coconino County. PROJECT OVERVIEW • Ground-mounted PV system (30 panels total, approx. 13.5 kW DC) • Mounting preference: pressure-treated wood posts with aluminum or Unistrut rails • Inverter: EG4 FlexBOSS21 (48V split-phase) • Batteries: EG4 PowerPro (2 units, expandable architecture) • Generator: Generac Guardian 7171 (10kW) • Generator integration: 2-wire start via inverter AGS...

I need an experienced RF technician to install antennas on a tower. Key tasks include: - Installing antennas securely and correctly on the tower - Ensuring all installations meet safety and regulatory standards - Collaborating with our team to coordinate installation schedules Ideal skills and experience: - Expertise in RF equipment and installation - Experience working on towers - Knowledge of safety regulations and practices in RF installation

We are looking for an engineer team which has a good PCB design skill and motor driver programming skill. This project is to upgrade our exhisting PCB(Old version→ prototype) to update version. We will make one prototype PCB to test. And we will break it down to two PCB for later (standard and downgrade version) This machine has the following system: 1 x main CPU (GD32F450IGH6) 1 x AC motor inverter (RS485) Command input 1x sensor Up to 5x stepping motor ( synchronized, need fast movement)　NCcode input/ Tool path input. Up to 5x sensor 1 x DC motor 1 x sensor 1 x SBC( RPI) need to connect to main CPU ( need to have fast communication ) 3 x stepping motor 3 x sensors 1 x DC brushless (small )-added 2 x stepping motor-added 3 x COM to other device. We will send the current prot...