Ηλεκτρονικά Jobs

Ζητείται προγραμματιστής ή τεχνικός με εμπειρία σε ESP32 / Arduino IDE και βασική γνώση Industrial Automation (αισθητήρια, logging, Wi-Fi). Αντικείμενο: δημιουργία firmware για ESP32 DevKit v1, το οποίο θα: διαβάζει αισθητήρια &...

I own an A18R 3-D face and palm-vein recognition camera but was given no material to work with. To start development I need three things: the official user manual, the full technical datasheet, and a working sample project that illustrates how to build a custom application around the device. If you already have the original PDFs or verified scans and have written code for this model, I would greatly appreciate them. A C++ or Python example is ideal, yet I can adapt to any language that ships with the manufacturer’s SDK. The demo should cover device initialisation, enrolment, matching, and retrieval of results so I can plug those routines into my own software. Deliverables • User manual (English preferred) • Complete datasheet, including pinout, protocol, and electrica...

I need an experienced Omron PLC specialist to integrate several new pieces of equipment into our existing control architecture. The focus is on bringing a set of conveyor systems, general manufacturing stations, and a recently added recycling facility online so they communicate flawlessly with our current Omron CPU. Scope • Build or modify ladder/structured text in Sysmac Studio (or CX-Programmer if you prefer) so each machine’s I/O, safety interlocks, and status data map cleanly to the master PLC. • Configure safety routines that satisfy both ISO-compliant requirements and my own documented in-house protocols. I will provide the internal checklist up front. • Produce clean documentation—tag lists, network drawings, and a brief commissioning guide—so...

I’m looking for a solar engineer who can prepare a straightforward yet accurate design for a commercial rooftop installation. My goal is to walk away with a practical blueprint that lets me understand system sizing, component placement, and expected production before I move on to permitting and procurement. Scope - Produce a preliminary array layout for a commercial roof (include tilt, azimuth, and spacing). - Run a quick shading and energy-yield analysis using a standard tool such as PV*Sol, Helioscope, or PVsyst—whatever you’re most comfortable with. - Provide an outline bill of materials: panels, inverters, racking, and balance-of-system components. - Summarize key assumptions (roof dimensions, irradiance data source, loss factors). As we are operating in Singapore, ...

I need code written for an Arduino Uno REV3. The code will use an MPU6050 3-axis accelerometer to actuate a servo based on forward G-force. Requirements: - The servo will perform linear movement. - It should be actuated at a G-force threshold of 0.5g. - The range of motion for the servo should be 0 to 90 degrees. Ideal Skills and Experience: - Proficiency in Arduino programming - Experience with MPU6050 and servo motors - Knowledge of G-force calculations and motion control

I’m putting together a small industrial-automation station and need a compact gearbox paired with a servo motor that can handle a light-duty load while only requiring basic position and speed control. The goal is to keep the system simple, reliable, and easy to integrate into an existing PLC panel. What I already know • Application: light pick-and-place arm on an assembly bench (low inertia, intermittent duty). • Control requirement: straightforward indexing—no sub-millimetre accuracy or advanced motion profiles. • Speed range: 30-120 rpm after reduction. What I’d like from you 1. Confirm the torque calculations and propose a suitable gear ratio. 2. Recommend an off-the-shelf gearbox and matching servo (or a tightly integrated gear-servo unit)...

I already have the source for an SLCAN-compatible firmware that targets the CANable2 / SH-C31A board (STM32F072). What I’m missing is a clean, reproducible build and a ready-to-flash binary. Scope • Compile the existing code on the latest stable GCC-ARM (or another open-source toolchain) with no modifications other than what is required to turn on basic CAN communication. • No higher-level stacks are needed; there is no CANopen or J1939 requirement. • Output a .bin (or .dfu) file that I can drop straight into STM32CubeProgrammer, plus the exact commit or tag you built from and the commands you ran so I can repeat the process on my side. Deliverables 1. Flash-ready firmware binary for STM32F072 (CANable2 / SH-C31A). 2. Short text file outlining toolchain ver...

Product Build Specification – Infra Fire Sticker (Buzzer-Only Version) Brand: Infra SSR Division: Infra Fire Stickers Version: IF-BZ-01 Date: November 2025 --- 1. Product Overview Infra Fire Sticker (Buzzer-Only Version) is a self-contained fire penetration detection sticker that instantly triggers a local audible alarm when fire breaches or penetrates the protected surface. Designed for EV battery enclosures, wall panels, electrical cabinets, and confined infrastructure, it provides singular event detection — no false alarms, no AI dependency, and no network connection required. --- 2. Functional Description Detects heat or flame penetration through sticker substrate (via embedded puncture/thermal displacement sensor array). Triggers piezo buzzer alarm (≥ 90 dB) u...

I need an advanced multi-layer rocket flight controller. It should manage: - Pyro channels - Servo channels - Multiple sensors: - Temperature - Pressure - GPS - IMU - Magnetometer - Barometers - LoRa telemetry Ideal skills and experience: - Expertise in avionics and flight control systems - Proficient in integrating various sensors - Experience with LoRa communication - Strong background in robotics and automation - Ability to design for high-reliability aerospace applications Please provide examples of similar work done and relevant qualifications.

MounRiver code to enable CDC mode on CH592 to monitor analog ADC val

I’m integrating a DS18B20 temperature sensor into my STM32 board and need clean, lightweight C code that talks to the sensor over its native 1-Wire bus. I don’t want to rely on HAL or LL helpers—I’m after fully custom code that I can drop into an existing bare-metal project. Scope • Write and comment a small driver that handles sensor reset, ROM commands, temperature conversion, CRC check, and sign/decimal formatting. • Provide a non-blocking polling routine that delivers continuous, real-time readings. • Push each reading out over a simple interface of your choice (UART printf, SWO, or a function callback) so I can watch live values in a terminal or debugger. • Supply a short README explaining pin assignments, timing considerations, and...

I want a breadboard circuit that can be used to detect a voltage (any voltage from 9v - 53v on a device that delivers 53v for 0.1 seconds through 2 wires). I want there to be 4 sets of crocodile clips to measure the 4 circuits, a green LED to indicate the power is on, and 4 red LEDs that indicate what circuit has voltage on it and the LED is to stay on when power is detected. I also want a buzzer that will sound for 1 second when voltage is detected. I want a switch for power and a button that can be used to reset the LEDs to off. I want it to run off 4 AA batteries

Project: Automotive Signal Injector for Camshaft and Crankshaft Sensor Simulation 1. Project Objective This project aims to develop an embedded system capable of simulating camshaft and crankshaft sensor signals used in automotive ECUs (Electronic Control Units). The device will allow ECU repair technicians to perform bench tests without needing the actual vehicle, making diagnostics and repairs faster and more efficient. 2. Scope of Work The hired engineer will be responsible only for firmware development for the STM32F103C8T6 microcontroller, according to the specifications below. The hardware design is already defined. The freelancer must deliver a fully functional and well-structured firmware. 3. Technical Specifications 3.1 Microcontroller STM32F103C8T6 (ARM Cortex-M3 core) 3.2 ...

Oferta de Colaboración: Ingeniero/a Electrónico para Cerradura de Seguridad (Fase Final de Producto). Buscamos un Ingeniero/a Electrónico/a freelance y con experiencia en industrialización y salida a mercado para una colaboración crucial. Estamos en la última fase de desarrollo de la PCB de nuestra Cerradura Electrónica de Seguridad y necesitamos una revisión final integral antes de la fabricación de la primera tirada comercial. Sobre el Proyecto: ​Se trata de una cerradura mecánica innovadora (con patente registrada) que convertimos en inteligente. La Versión 1.0 es un dispositivo de control local, pero la visión a medio plazo es evolucionar a la Versión 2.0 (IoT), con gestión a travé...

Looking for an experienced embedded hardware and firmware engineer to develop a confidential IoT prototype. The project involves microcontroller-based GSM/GPS or similar communication systems. The freelancer must sign an NDA before accessing project details. Proven experience in designing power-efficient embedded systems, firmware development, and integration is required. Please share your portfolio and estimated turnaround time. Deadline: 7 days

I supply microcontroller-based weigh machines to customers around Bangalore and need dependable onsite help whenever a unit misbehaves. The work is strictly hardware troubleshooting on the field and revolves around: • Calibrating the weighing system so readings match spec. • Fixing cable faults and doing quick solder touch-ups on sensors or connectors. • Swapping out a faulty control card and confirming the replacement boots correctly. The electronics inside are a mix of microcontrollers, sensors and actuators. Most issues are straightforward once the right pins, cables or trim pots are located. You can provide a remote connection with laptop and I can guide you step-by-step what is needed to be done; at other times you will handle the visit independently. I&rsquo...

Job Title: Need 1-on-1 Code Composer Studio (TI C2000) Online Training — Remote Desktop SupportJob Description: Hi, I’m working with the Texas Instruments C2000 LaunchPad (e.g., F28379D) and need help learning to use Code Composer Studio (CCS) effectively. I'm running into issues related to project setup, debugging, and configuring the development environment. I’d like to work with someone who can guide me step by step, with screen sharing and remote desktop control (AnyDesk/TeamViewer/etc.). I need support with: Setting up and configuring CCS projects (linker files, startup files, macros) Using peripherals like GPIO, PWM, ADC Understanding build errors and warnings Dual-core CPU handling and GEL output issues Working with C2000Ware example projects Debuggi...

I’m looking for a Mandarin-speaking professional in mainland China or Taiwan who already deals with electronic-component distributors. My immediate need is to map every FPGA, DAC, DRAM, etc. on my BOM to a locally manufactured equivalent. I’ll supply the original part numbers; you investigate, call factories, cross-check inventories, and come back with solid options that really exist on the shelf. You’ll work by the hour—research time, calls, and follow-ups count—so accuracy and speed matter. Deliverables • Excel Sheet listing each original FPGA, recommended Chinese/Taiwanese replacement, MOQ, tiered pricing, lead-time, packaging, and supplier contact details • Datasheets (PDF links in both English and Chinese where possible) • Brief note...

I need a detail-oriented technical linguist to turn my consumer-electronics user manuals into clear, accurate versions in the target language I provide at kick-off. Scope • Translate or, where needed, rewrite the manuals so that even first-time users can follow each step without confusion. • Keep all terminology consistent with existing brand wording and IEC/ISO style guidelines for consumer devices. • Preserve or recreate diagrams, tables, safety icons, and numbered procedures so the finished document is press-ready. What I will supply – The current English source files (Word and InDesign) – A small terminology list and reference style sheet – Access to the product’s firmware/UI for screenshots if required What I expect back 1....

PLEASE READ PROJECT DETAILS BEFORE SUBMITTING QUOTE. Please provide your past project details that you have done. RANDOM SUBMITTED QUOTES WILL BE DELETED WITHOUT PROVIDING ANY RESPONSE BACK. We are developing an mechanical system for our R&D line and need a working control package for the 10 Panasonic servo motors. Each motor must run independently with adjustable speed, direction, and torque. Project environment • Controller: Raspberry Pi (preferred) • Panasonic Driver: Minas A6 • Panasonic Motor: MEDHT7364L01 • Communication: RS485 • Language: Python What I need from you 1. Clean, well-commented Python code that – establishes and maintains reliable RS485 links – sends real-time commands to each motor for speed, direction,...

I’m putting together a small consumer-grade handheld gadget and need a straightforward, solder-ready PCB designed around three core features: battery management, 7 segment control, and a single contact button interface. Scope is intentionally lean—I’m looking for an initial concept that I can move to a quick prototype run without multiple revision cycles. The board have to be with soldered components and it can be single- or double-layer as long as it stays compact . Deliverables I need: • Clear schematic showing battery charging with usb c/protection, dupont 4 pin , and button debounce, power button with led intergrate • PCB layout with Gerber files and drill data, optimized for low-cost fabrication • Brief assembly notes so I can reproduce your resu...

I’m putting together a personal smart-irrigation setup and need a complete working design that I can assemble at home. The core of the system will rely on: • Soil moisture sensors, temperature sensors, and a rainfall sensor for real-time environmental data • A water flow sensor and water dispenser to manage delivery • An Arduino for low-level sensor handling and control signals • A Raspberry Pi for data logging, dashboards, and remote alerts Here’s what I’m looking for: 1. Wiring diagram and parts list showing exactly how the sensors, Arduino, Pi, and pumping hardware connect. 2. Firmware/sketch for the Arduino that reads each sensor, drives the pump or valve, and communicates with the Pi (I’m comfortable flashing the board myself). ...

Need a *TCAD SENTAURUS* expert who can design and Simulation 50 nm Gate Length MOSFET and creathe the graphs of Ids/Vgs characteristics of NMOS/PMOS at various gate oxide thickness. The parameters under investigation are the threshold voltage, subthreshold slope, on-state current, leakage current and drain induced barrier lowering (DIBL) by varying channel doping concentration, drain and source doping concentration and gate oxide thickness.

I’m looking for a maker who can build (and document) a functional prototype of an RC car and Rc car which needs to be build in budget with requirements mentioned that doubles as a 1 kg grocery hauler. I will rely on a mobile-app interface, so please keep every control—driving, tray actuation, and FPV video—inside a single Android & iOS solution. Core requirements • Chassis and drive: Choose or fabricate a sturdy radio-controlled chassis. Select motors with enough torque to move at a reasonable indoor speed while carrying up to 1 kg. Feel free to recommend brushed or brushless—performance matters more than the exact type. • Connectivity: Integrate an on-board Wi-Fi FPV module with transmitter/receiver that streams live video to the same mobile app...

I need a single, fully-assembled RC car that can haul grocery-sized loads from nearby shops and stream live video back to my phone. Mechanical & payload requirements • Custom 3D-printed chassis and body with enough torque and ground clearance to move comfortably while loaded with groceries. • Rear acrylic tray that can open and close automatically by servo/actuator—think “drop-box” style so I can place or retrieve items hands-free. • Secondary mount behind the tray for an Insta360-type camera; the arm or bracket should keep the lens unobstructed during motion. Electronics & FPV • Onboard Wi-Fi FPV module delivering good resolution while keeping component costs sensible. • Low-latency motor and steering control through the same ...

I’m building a first–run prototype of a soft, coin-vibration massage wearable and need the electronics fully assembled and proven on a single-layer FR-4 board with comfort-centric routing. The core bill of materials is locked: • Li-Po 3.7 V / 400 mAh • USB-C charge-in with dedicated charging IC • Low-power MCU, two MOSFET drivers, 10–12 mm coin vibration motors • 3 white LEDs + 1 bi-color status LED • One tactile push-button, assorted Rs/Cs, NTC, PTC, TVS • EVA isolation mounts, grommets, wires, connectors What matters most is comfort and ergonomics, so component placement, wiring exits, and vibration isolation must support a slim, body-friendly form factor. I’ll supply the components for each part; you’ll handle: 1...

Project Title: Need Help Flying Drone Autonomously (Raspberry Pi 5 + Matek F405 HDTE + ArduPilot) Description: Hi! I’m a final-year Aircraft Manufacturing Engineering student working on an autonomous drone project. Right now, I’m stuck on getting a single drone to fly autonomously using my hardware setup: Flight Controller: Matek F405 HDTE Companion Computer: Raspberry Pi 5 Firmware: ArduPilot I’ve tried several methods and configurations, but I still can’t make the autonomous flight work correctly. I’m looking for someone who can guide me step-by-step (remote support) or help me fix the setup so the drone can take off, navigate, and land autonomously. Tasks may include: 1) Setting up and tuning ArduPilot for the Matek F405 HDTE 2) Enabling communica...

I’m setting up a small studio and need a hands-on sound engineer to get my new sound system up and running. The job is straightforward: the gear, position the speakers, run the cables cleanly, patch everything through the interface and power amps, and verify that every channel is passing signal without noise or hum. Once everything is wired, I’d like a quick calibration so the monitors are balanced and the room response is even enough for basic tracking and playback. Key points • Focus is installation only no mixing or mastering work right now. • Equipment: studio monitors, audio interface, • Deliverables: a neatly wired, fully functional sound system and a simple diagram showing signal flow so I can troubleshoot later. If you’ve installed studio s...

I need a straightforward yet reliable design for a small STM32-based board that will live inside an automotive environment. Its core tasks are simple control and communication duties, so the essentials are: • STM32 MCU of your choice • On-board CAN transceiver (no extra UART/SPI/I2C lines are required beyond what the MCU naturally exposes) • Pins for programming the microcontroller are to be exposed • One opto-isolated relay output rated for 230 V AC, 10 A • Taking into account the fluctuating voltage in the automotive installation when powering the microcontroller Keep the scope lean: I’m after a clean schematic, a compact 2-layer PCB layout, and ready-to-manufacture Gerber files with an accompanying BOM. A basic PDF of the schematic and PCB renders is...

I am working in a biopharmaceutical manufacturing facility and want to automate part of our UF/DF (Ultrafiltration/Diafiltration) process to reduce manual control of the Watson-Marlow 520 peristaltic pump. Currently, the process requires operators to manually adjust pump speed to maintain Transmembrane Pressure (TMP) within limits (typically ±0.3 bar). I want to build a real-time monitoring and control dashboard using Node-RED or similar open-source platforms that can: • Read pressure, pH, and conductivity values from sensors via Arduino or Modbus. • Calculate TMP in real time. • Implement a PID control loop to automatically regulate pump speed via RS-485 (Modbus RTU). • Display live data on a simple web dashboard (Node-RED UI) with graphs and alarms. &bull...

We are looking for an experienced electrical designer or controls drafter to create professional ladder-style schematics and a panel layout drawing for an automation control panel. The system is based on an AutomationDirect Productivity 2000 PLC, PS-AMC4 motion controller, and C-more HMI, used for a polishing machine with servo and stepper motion axes. System Summary Controller & Motion PLC: Productivity 2000 (P1-550 CPU) Modules: P1-16ND3 (inputs), P1-08TRS (relay outputs), P1-04AD-1 (analog inputs) Motion: PS-AMC4 (4-axis pulse/direction controller) Drives: 1x RATTMMOTOR YPMC-600W Servo Driver (Axis 1 – Linear Axis) 3x TB6600 Stepper Drivers (Axis 2–4 – Paper Pull + Chuck Rotation) Stepper Motors: STP-MTRH-23079 HMI: C-more CM5-T7W Power Supply: 24VDC Ne...

I am looking to collaborate with an Embedded Systems or Electronics Engineer to design and build a wearable biosignal acquisition prototype. The goal of this project is to develop a compact, reliable system that can record multiple physiological signals simultaneously, sample them at different rates, and transmit the data wirelessly to a computer via Bluetooth. On the computer side, the data should be displayed in real time using MATLA. The system will be based on the Nucleo-F401RE (STM32F401) microcontroller board, which will handle all sampling, timing, and wireless communication.

I’m overseeing the commissioning of a new transmission-level substation and need an experienced partner to accelerate the on-site testing phase. My main focus is protection relays, but the scope also covers circuit breakers and power transformers, so I’m looking for someone comfortable moving across those assets without missing a beat. What I need from you • Develop or refine detailed test sheets and procedures for protection relay testing and calibration (distance, differential, overcurrent, etc.). • Execute or remotely guide primary and secondary injection tests, verify logic, and document results in line with IEC 61850 / IEEE recommendations. • Perform functional and timing tests on circuit breakers, including contact resistance and insulation checks, t...

I’m looking for an electronics engineer to design a compact, efficient driver board for piezoelectric ultrasonic transducers operating between 20 kHz and 30 kHz. The system should allow variable frequency operation and multi-harmonic emission based on pseudorandom modulation (PRN) to create a broadband ultrasonic spectrum. Requirements: • Full schematic, BOM, and PCB (KiCad or Altium) • Configurable center frequency (20–30 kHz) with step ≤10 Hz • Firmware for amplitude/frequency control and short sweep for resonance tuning • Capable of multi-harmonic PRN modulation (8–16 preset patterns, selectable seed) • Efficiency ≥85 % at typical load (specify Vpp @ load C ≈ N nF) • Basic protections: over-current, over-temperature, open-loa...

I need a skilled PCB designer to create a double-layer PCB for a consumer electronics project. Key Requirements: - Design a double-layer PCB - Tailored for consumer electronics applications Ideal Skills and Experience: - Proficiency in PCB design software (e.g., Altium, Eagle) - Experience with double-layer PCB design - Knowledge of consumer electronics requirements and standards - Attention to detail and accuracy - Ability to provide design files and documentation Please include relevant experience in your bids.

I'm seeking an experienced PCB designer to create a double-sided PCB for a consumer electronics radio application. Requirements: - Design for a developer board - Double-sided configuration Ideal Skills and Experience: - Expertise in PCB design software - Experience with double-sided PCBs - Background in consumer electronics, especially radio devices - Attention to detail and high precision in design Please provide examples of similar work done, along with your bids.

The Train Cab Controller project aims to design and develop a realistic hardware interface that replicates the control systems of a locomotive cab, allowing users to operate train simulators with authentic tactile feedback. This controller acts as a bridge between the simulation software (e.g., Train Simulator Classic / Train Sim World) and the physical control levers found in real locomotives such as the Indian Railways WAP-7. Expected Outcome: Fully functional prototype of a train cab controller. Smooth control integration with Train Simulator 2020 (RailWorks). Realistic replication of WAP-7 cab operations. Cost-effective and modular design for easy expansion.

I already have the amplifier built and running in Multisim 14; what I’m missing is a clear frequency-response-based view of its phase shift. Once I send you the source file and my reviewer’s comments, I need you to: • Re-simulate the circuit in Multisim version 14 (same version is mandatory so our component models stay intact). • Run an AC sweep and extract the phase-versus-frequency data. • Present the results as a clean Bode plot and export the underlying data points (CSV or Excel is fine). • Briefly point out any notable observations that stand out in the curve—no deep report, just a concise note if something is clearly off. I will need it immediately, and my budget is low (10 USD) because it's an already simulated circuit. You will just...

I need a complete PCB design that turns a single capacitive-touch pad into a sleek three-mode LED lamp. A single tap should cycle the LEDs through warm, warm white, and white; no extra buttons or mechanical switches. Power & charging • Runs from a single-cell Li-ion chemistry (LiPo or LiFePO4). • Charges over a USB-C input. • On-board BMS must provide both over-charge and over-discharge protection. What I expect from you • Schematic, PCB layout, and production-ready Gerbers. • An annotated BOM with readily available components. • Native design files (KiCad, Altium, or Eagle—your choice) so I can iterate later. • A short design note explaining the touch interface IC, LED driver choice, and the way the BMS is wired in. I’ll ...

I’m building a tool that can generate complete PCB layouts on its own and I want an electronics-savvy developer to help me bring the idea to life. The first release will focus exclusively on single-layer PCBs, but it has to feel polished: auto-routing must be reliable, schematic capture smooth, and real-time error checking immediate and accurate. Here’s what I need you to tackle: • Translate design rules for single-layer boards into code that my algorithm can digest. • Shape an auto-router that balances speed and trace integrity. • Wire up an intuitive schematic-capture front end (framework and language are flexible). • Embed a real-time DRC engine that warns users as they draw. If you’ve written layout algorithms, scripted PCB toolchains...

Teensy 4.1-based macro recorder box. This is for my own use since the options currently available don’t quite fit what I need. The idea is to have a small device that sits between a controller and a Nintendo Switch 2 (docked). A controller, like the 8BitDo Ultimate 2 or Xbox Elite Series 2, would connect to the box (either via its USB dongle or over Wireless USB), and the box would then connect to the Switch 2 through USB-C. The goal is to record and replay macros in real time during gameplay, with ultra-low latency and on-screen feedback. Core hardware setup: • Teensy 4.1 (main MCU) • 1 × USB-C port for connecting to the Switch 2 • 1 × USB-C port for development, firmware updates, or PC connection • 1 × USB-A port for a wireless controller a...

I’ve completed the hardware design of a smart ring built around the nRF52810 SoC. It includes MAX30102 (SpO₂/heart rate), TMP117 (temperature), ADS1115 (strain sensing), and BQ25120A (battery/charging). I’m looking for a developer to handle firmware and mobile app development. Tasks: Write firmware for nRF52810 using nRF SDK or Zephyr. Interface all I²C sensors and stream data over BLE. Create a simple mobile app (Flutter or React Native) to show heart rate, SpO₂, temperature, strain, and battery level. Ensure low-power operation and stable BLE connection. Deliver tested firmware (.hex + source) and app (.apk + source). You should have: Strong nRF52 BLE experience (custom GATT services). Good knowledge of I²C sensor drivers. Prior wearable or IoT BLE project experien...

I have a small servo-driven mechanism that must move precisely to Keep a 4 LBS. antenna level. I want a full closed-loop position control solution built around an accelerometer feedback for Arduino. Here is what I need from you: Help choosing the correct servo motor and then implementing the code to make it work. I am considering building a system using the Zero-Max IP65-Rated Counter-Rotating Gearbox C130802 with an Arduino controller and accelerometer to keep the antenna level. • Design or select a suitable control algorithm (PID or comparable) that reads the accelerometer data, filters the noise, and drives the servo to the commanded position with minimal overshoot. • Develop the firmware in C/C++ or Python for an MCU such as STM32, Arduino, or a similar readily availa...

I need a clean, single-plane circuit designed and fully simplified so I can drop it straight into a larger board layout. The circuit will include resistors, capacitors, and voltage sources, and the key goal is network simplification, not raw simulation horsepower. Please base every step on Kirchhoff’s Laws and document how each branch current and node voltage is condensed into the final equivalent network. Here’s what I’d like back: • A clear schematic (PDF or image) showing the original layout on one plane. • A step-by-step worksheet—or well-commented file—demonstrating the simplification process, explicitly calling out each Kirchhoff equation used. • A final, fully simplified equivalent circuit with all values shown. • Optional bu...

I need a straightforward, single-layer schematic that processes an incoming analog signal. The goal is to create a brand-new plane circuit—everything must sit on one board layer—using familiar passive parts (resistors, capacitors, a voltage source) plus any other essentials you feel are truly necessary for clean signal conditioning. Here’s what I’m looking for: • A clear schematic (PDF or image) showing every node and reference. • A brief bill of materials with part values and tolerances. • A short note explaining how the design meets the signal-processing objective, including expected gain or filtering characteristics. • Optional but appreciated: a quick LTspice, Multisim, or similar simulation screenshot to confirm the waveform looks...

Wireless motor control system using 2 esp32 in master slave combination. 1 esp32(slave) control 9 servo motors through pca9685 and 2 small 1.28" displays. Master esp32 control 1 servo motor, 2 stepper motors, 1 linear actuator and also pairs with ps4 bluetooth gamepad. Each button on bluetooth gamepad is dedicated each motor. Need circuit connections and code.

I already have an Adafruit Feather wired to a small speaker and I want it to behave like HAL 9000 by speaking selected lines from 2001: A Space Odyssey. The scope is narrow: no voice or facial recognition, just clean, reliable playback of movie quotes when I trigger them from GPIO pins or simple serial commands. Here’s what I need from you: • An Arduino-compatible sketch for the Feather (I’m on the M4 Express, but generic Feather code that compiles in the Arduino IDE or CircuitPython is fine). • Integration with an audio option you know works well on a Feather: Adafruit Audio library + microSD, I2S with the onboard DAC, or a DFPlayer Mini—choose whichever delivers the best quality and document any wiring tweaks. • A tidy function or command table wher...

I’m looking for an experienced electrical engineer to run a focused efficiency and performance check on the small-form transformer that powers our line of electric knives. I will supply the complete schematic, datasheets, and the specific compliance standards we already follow; you won’t need to hunt for documents—just dive straight into the analysis. Here’s what I need: • A concise loss-breakdown and efficiency calculation across our operating load range • Verification that the design meets the supplied standards for temperature rise, voltage regulation, and power factor • A short list of practical tweaks—winding changes, core material suggestions, or layout adjustments—that could lift efficiency without re-tooling the entire product...

I need a complete design package for a 20 element rectangular microstrip patch antenna tuned to 8 GHz. Please take the project from initial concept through to a fabrication-ready file set and a brief validation plan. The array type is indicated in the attached figures. The images show a corporate-fed linear patch array that uses a series–corporate hybrid feed network — essentially a stepped T-junction microstrip corporate feed printed on a single substrate. Scope and expectations • Electromagnetic modelling – run and share simulations (HFSS, CST, ADS or equivalent) demonstrating S-parameters, gain, radiation pattern and bandwidth around 8 GHz. • Optimised layout – provide the final PCB outline, substrate stack-up, via pattern and ground plane details ...

I need a complete SCADA-PLC program built on Siemens hardware and software. The process itself is already mapped out; what I’m missing is the logic, HMI screens, alarms, and basic data logging that tie everything together. Scope • Develop and document the ladder logic / TIA Portal project. • Design intuitive SCADA screens with key process indicators, start-stop controls, and alarm pop-ups. • Configure alarms, interlocks, and safety routines in line with the existing I/O list. • Set up basic historical data logging so operators can review trends. • Provide an offline simulation or short video walkthrough so I can verify functionality before site deployment. Requirements • Must use Siemens PLC and HMI software (TIA Portal V16 or later; WinCC ...