Sistemas Embebidos Jobs

Necesito convertir un Pen Drive común en un “registro” automático de todo lo que se imprima desde mi impresora. La idea es que cada trabajo de impresión se guarde, tal cual se manda a la impresora, dentro del Pen Drive y que luego yo pueda abrir esos archivos directamente desde el propio dispositivo en Windows sin depender de software adicional instalado en el equipo. Busco, por tanto, un desarrollo que: • intercepte cada job de la impresora y lo copie al Pen Drive en un formato legible (por ejemplo, el mismo PDF/imagen/post-script que envíe el sistema); • funcione de forma transparente: simplemente conecto el Pen Drive a la impresora o al puerto USB correspondiente y comienza a registrar; • permita que, al conectar el Pen Drive a...

Necesito integrar un datáfono Saturn1000 con las balanzas Marqués ETPOS V5.34 / ETBAL V1.0 sobre un sistema basado en Linux 4.14.78-mx6+ga9b238a40814. El objetivo es la sincronización de transacciones: cada vez que la balanza cierre una venta, el datáfono debe recibir y guardar el registro de venta con total precisión. La conexión será por cable (serial o USB - lo confirmamos en función del hardware definitivo). Alcance técnico • Crear el módulo, driver o adaptación necesaria en kernel 4.14.78 para que ambos dispositivos se reconozcan y se comuniquen sin pérdida ni duplicado de datos. • Implementar el protocolo de intercambio que envíe el registro de venta desde la balanza y confirme...

I’m looking to build a simple wearable mask prototype that combines light and vibration to create a relaxing sensory experience. The device should include LED lights (preferably RGB) positioned so they shine through closed eyes and run different light patterns. It should also include 1–3 small vibration motors that sync with the light patterns to enhance the experience. I’d like a few basic modes such as calm (slow and soft), medium, intense, and a random mode that generates varying patterns. The patterns should transition smoothly and not feel harsh or abrupt. The device should be controlled with 2–3 simple buttons (power and mode switching). No app or connectivity is needed. It should be powered by a rechargeable battery (USB-C preferred). The physical build d...

I’ve designed a product that springs to life at the tap of a phone or web button, and I need a talented maker to turn that idea into a fully functioning prototype. The core is a pop-up mechanism—whether you favor solenoids, springs, or a tiny geared motor, I’m open—as long as it rises smoothly, reliably, and safely. Control will come from a Raspberry Pi or Arduino (again, whichever you feel best suits the task), with clean wiring and firmware that listens for a remote trigger. Alongside the hardware, I’ll need a very lightweight app or web page that exposes a simple trigger; bonus points if you can add basic status feedback without over-engineering. I’m happy to supply sketches and dimensions. To keep the conversation focused, please share: • Pho...

I’m building a palm-sized device that helps automate at-home medication. Inside it sit two independent plungers driven by micro servos, a vibration motor, a small speaker for audio prompts, and a 1.68-inch colour display for on-device instructions and feedback. All of these elements need to live on a custom PCB, run from a single rechargeable battery that is properly sized for daily use, and work seamlessly together. You will receive the full parts kit, so your focus is on: • designing the board, • assembling and reflowing it, • loading the firmware, and • proving that everything operates exactly as intended. The most important interaction is tight, reliable coordination between the user’s button press (or other trigger you recommend) and the t...

I want to build a turnkey GPRS-based tracking solution for a small fleet of up to ten vehicles. The platform must stream each vehicle’s live GPS position, keep a searchable log of every route taken, raise instant geofencing alerts, and give me remote engine-cut capability together with reliable petrol-level monitoring. Hardware • A compact on-board unit that pairs a high-sensitivity GPS receiver with a quad-band GSM/GPRS modem. • Wired inputs for ignition status, fuel-level sensor and an output relay for safe engine cut-off. • Over-the-air firmware update support so I never have to recall a device for basic fixes or tweaks. Firmware & Protocol The device should package GPS, fuel and status data in efficient binary or JSON packets and push them to my serve...

Design a complete electronic schematic for our smart orthotic insole device based on the given system requirements. The circuit will include multiple FSR sensors (Force Sensitive Resistors) for plantar pressure sensing and an IMU sensor for gait/motion tracking. Select and integrate suitable supporting components such as microcontroller, BLE communication module, power management circuit, battery charging unit, connectors, and signal conditioning circuits. Ensure proper sensor interfacing, analog signal acquisition, filtering, and calibration provisions in the schematic design. After schematic approval, develop a compact, optimized PCB layout suitable for wearable insole integration with size and flexibility constraints in mind. PCB must be designed for low power consumption, stable sensor...

I need a custom harness to connect a Wi-Fi enabled smart door lock, potentially including installation assistance. Requirements: - Design and build a functional harness - Compatibility with Wi-Fi smart door locks - Potential installation support Ideal Skills: - Experience with electronic hardware - Knowledge of smart home devices - Proficiency in installation and setup

I’m outfitting an ArduCopter that runs 6-cell Li-ion packs and need a purpose-built Battery Management System. The board and firmware must continuously monitor pack health, actively balance the cells and speak Mavlink over CAN so the flight controller sees accurate live data. Core functions • Real-time battery monitoring with voltage, current and temperature reporting for every cell and for the full pack • Automatic cell-to-cell balancing to maximise capacity and cycle life • Safety layer that disconnects or limits power on over-charge, over-discharge or short-circuit events • Mavlink-over-CAN telemetry, using the standard ArduCopter battery status messages so Mission Planner and QGroundControl display everything without custom plugins What I expect as d...

I’m putting together an MVP that lets guests press a single mechanical button at their table; the ESP32 lights up a WS2812 LED ring (powered directly from the ESP32) and reports the call to my Supabase backend. Your task is to write the complete device-side firmware and show it running on real hardware. Core behaviour • Idle until the button is tapped. • State machine: blue for the first 0-2 min, green for 2-5 min, red after 5 min. • A 3-second long-press closes the event and turns the LEDs off. • Solid, reliable debounce for the mechanical button. Networking The device connects over Wi-Fi, tags every event with restaurant_id, table_id and device_id, and posts JSON to the Supabase REST endpoint I’ll supply. If the network drops it should queue lo...

I have a LabVIEW program that is already developed and mostly complete. The cRIO hardware is also installed and configured in LabVIEW. The goal is to control one gas pump and one water pump using LabVIEW. Currently, the water pump is working properly, but the gas pump is not functioning. We need to identify the root cause of this issue. For this purpose, we are looking for a LabVIEW specialist who can help diagnose and resolve the problem. In addition, we have two sensors whose readings need to be displayed in LabVIEW. List of tasks to be completed on this nearly finished LabVIEW project: 1. Control the gas pump speed (increase/decrease) via LabVIEW commands 2. Ensure that the water pump, which is already functioning, is not disrupted 3. Connect two sensors to LabVIEW and display the...

Have a working circuit diagram for a device based on the ESP32-WROOM-32E module. The system is powered from an external supply (5V / 8V / 12V). The next step is to convert this schematic into a complete, production-ready, single-sided PCB design using Altium Designer. Scope of Work The objective is to develop a fully functional and manufacturable PCB design that meets the following requirements: Convert the provided circuit diagram into a clean, well-structured schematic in Altium Designer Design an optimised single-layer/double-layer PCB layout Ensure the PCB strictly follows the fixed board outline dimensions (to be provided) Implement clear silkscreen labelling for all components and connectors Optimise component placement and routing for reliability and manufacturability Deliverab...

I need an embedded systems hardware design for an industrial control application focused on data collection. Key components include: - Microcontrollers - Sensors - Communication interfaces Ideal Skills & Experience: - Expertise in embedded systems design - Proficiency with microcontrollers and various sensors - Strong knowledge in developing communication interfaces Please provide examples of similar projects done.

We are developing an advanced home automation system focused on intelligent HVAC (Heating, Ventilation, and Air Conditioning) control. We are looking for an experienced PLC programmer to support the development and implementation of zone-based heating and cooling systems. Scope of Work: • Design and develop PLC-based control logic for HVAC systems • Implement zone control strategies (multi-zone heating & cooling) • Integrate PLC with sensors, actuators, and automation systems • Assist in system architecture and optimization • Troubleshoot and refine control performance Requirements: • Strong experience in PLC programming (Siemens / Allen Bradley / Schneider or similar) • Hands-on experience with real-world PLC systems • Understanding of...

I have a new industrial control system under development and now need the core PLC program written from scratch. The hardware has already been selected; I can share the full I/O list, functional specification and any wiring drawings you require once we start. Your role will be to translate those documents into a clean, well-structured PLC application, fully commented and ready for download to the controller. I’ll also count on you to: • model or simulate the logic so we can prove operation before installation • make reasonable tag-naming and memory-usage choices to keep future maintenance simple • supply the compiled program, the editable source file and a quick hand-off guide that explains each routine If you can stay available for remote support during first...

I already have step-by-step build notes for a tactile glove and the preliminary PCB design files. What I now need is practical help getting that board fabricated through PCBWay. Your job is to take my PCB files, carry out any touch-ups they still require—basic DRC fixes, panelisation or drill map tweaks—then upload the finished Gerbers and BOM to PCBWay, configure the order and place it. The glove relies solely on sensors, with pressure sensors and flex sensors called out in the documentation, so please double-check that the footprints and connector pinouts for those parts remain intact throughout your edits. Deliverables I expect: • Cleaned, production-ready Gerber, drill and pick-and-place files • Updated BOM highlighting the pressure and flex sensors used &bull...

I need a skilled embedded systems engineer to integrate the VS1010 for audio playback and recording in an embedded system. The VS1010 should specifically support WAV file format. Key Requirements: - Implement VS1010 for WAV audio playback - Integrate into an embedded system Ideal Skills and Experience: - Experience with VS1010 and audio processing - Strong embedded systems development background - Proficiency in handling WAV audio files Please provide examples of previous similar work.

I'm looking for an experienced developer to design an environmental monitoring system using the Arduino UNO R4 Wifi board and LoRa technology. The system will be used to collect data on environmental pollutants. Key Requirements: - Use of Arduino UNO R4 Wifi for data processing and transmission. - Integration of LoRa technology for long-range communication. - Development of a reliable power supply system to ensure uninterrupted operation. - Setup of sensors to detect environmental pollutants (specific sensors can be discussed). Ideal Skills and Experience: - Proficiency in Arduino programming and hardware integration. - Experience with LoRa communication systems. - Knowledge of environmental sensors, particularly for pollutants. - Strong background in power supply design for electro...

I need to replace my old SmartDrive-i2c-P.i.D. driver because of this: where, after several attempts, it is proven that the SmartDrive i2c P.i.D. driver does not run (at maximum motor speed) both motors on my side simultaneously

I am developing a compact wearable lighting device based on an ESP32 (ESP-NOW communication + WS2812 LEDs + LiPo battery system). This project is already in progress. I have an existing schematic and PCB layout, but I am looking for an experienced engineer to review, improve, and finalize the design for production. This is not a one-pass project. It will likely require back-and-forth discussion and iterative refinement to arrive at the correct final design. I want to be clear that I will be actively reviewing the work and asking questions as I go. I need someone who is comfortable with that process and open to collaboration. I do not want a situation where I feel hesitant to point out concerns or request changes. --- ### Critical Requirement (Very Important) This device must reliably...

I have a working Arduino Nano sketch that I now need running on an STM32. The project must be opened, built and flashed entirely inside STM32CubeIDE, so please base every file and configuration step on that toolchain. Key points you will handle • Rewrite the existing sketch for the chosen STM32 device, configuring clocks, GPIO, interrupts and peripherals exactly as needed. • Replace the current Arduino-style calls with HAL-based code generated in CubeMX, keeping the program logic identical. • The original sketch drives an OLED via a third-party library; the same display has to work on STM32, so include whatever open-source driver (U8g2, SSD1306 HAL port, etc.) you feel is most stable. • Alongside the source, provide a short step-by-step guide that shows how t...

I need a control system for two electric motors, each drawing 2.5 amps. The motors should be controlled sequentially using manual rotary switches. Requirements: - Control both motors with manual rotary switches - Motors should be controlled sequentially Ideal Skills and Experience: - Experience with electrical systems and manual switches - Familiarity with controlling electric motors - Ability to design a simple, safe control setup

i want a PCB for in-situ, real-time verification of sensor integrity in a live without interrupting the control process of components of PCB for cooling, heating and humidity, communication ports and AutoDetect sensor frailer equipment' because hardware often operates in controlled, safety-critical, and validated environments layout Design with components of advanced PCB for control /set point and manage temp of cooling sensor , heating sensor and humidity sensors, light sensor, proximity sensor, water low sensor, pressure sensor, high/low voltage sensor, wire and wireless commination ports lan, usb, can bus, rs-485 etc, processor, ram, memory, and AutoDetect sensor frailer, all types of alarms like heater, compressor, open door, high/low temperature with voltage protection, tempe...

I need a complete electronic design for a next-generation health-monitoring smartwatch whose signature element is a high-resolution micro camera mounted flush to the wrist side of the case. That camera will analyse the wearer’s skin to extract deeper, image-based health insights beyond the usual heart-rate and SpO₂ readings. I am open to your proposals on exactly which metrics image processing can reveal, provided they are scientifically sound and can be handled by an embedded processor in real time. Core hardware requirements • High-resolution skin-facing camera, paired with a wearable-class microprocessor powerful enough to process or compress the image stream on-device. • Minimum 16 GB on-board storage for captured data. • Bluetooth for data sync, a vibrant T...

I’m holding an ageing but still functional dual-channel, 80 A DC reverse controller that was built for industrial truck-tarp systems about fifteen years ago. The original supplier is long gone and all I have left is the bare hardware in my hands—no CAD files, no schematics. To get this product back into reliable production I need you to capture the existing board and deliver a fresh manufacturing package that any modern fab house can use. I’ll supply high-resolution photographs of both sides, detailed close-ups of critical sections, and shots that include vernier-scale references so dimensional data can be extracted accurately. Scope of work • Reverse-engineer the circuitry into a clear single-line diagram that reflects the dual-channel, high-current H-bridge t...

I have 2 Shelly i4 units behind 2x2gang switches. I have 9 Shelly 1 mini gen 3 relays on a series of spotlights and 3 more on some wall lights. Spots and walls are designed to be switched separately. I want 2 way switching for both groups of lights so the user can toggle a switch either end of the room to turn on/off a group. Note, all Shelly minis are powered with no possibility of switch inputs being used. This must all be done through programming or set up.

I need a lightweight, reliable stream-player application for a set-top-box environment that focuses exclusively on video. The core requirement is solid, glitch-free playback of Transport Stream (.ts) files delivered over the network. Scope of work • Build or customize a player that autoplays incoming .ts streams and displays them in full-screen. • Ensure basic transport controls (play, pause, seek if the stream permits) and graceful recovery on signal loss. • Optimise buffering so startup time is minimal without sacrificing stability. • Expose a simple on-screen or remote-triggered settings panel that lets me point the box to a new stream URL. • Package the solution so it can be flashed or installed easily on common Linux-based set-top boxes (OpenWrt, Ubuntu Core,...

I need a production-ready printed circuit board for a compact consumer-electronics tracker. The board has to combine Bluetooth connectivity for smartphone pairing, GNSS positioning for global location data, a LoRa module for long-range updates, and a 3-axis motion sensor to wake the unit only when it moves. Everything will run from a single rechargeable battery, so careful power budgeting and a low-power microcontroller are essential. Form-factor will be small enough to slip into a key-tag style enclosure, so component height and antenna placement must be considered from the start. I’m flexible on the exact silicon—Nordic, Espressif, STM, Semtech, etc.—as long as you can justify part choice against current draw, cost and global availability. Please take the design from ...

I have an ESP32-CAM board and want a complete, working IoT solution built around it. The core goals are real-time video streaming, advanced face recognition, and multi-channel light control, all managed from an Android mobile app. Key requirements • Configure the ESP32-CAM to deliver a stable, low-latency video stream. • Integrate advanced face recognition on-device or through an efficient edge/cloud workflow that meets ESP32 performance limits. • Drive several relay modules to switch household lights on and off. • Expand the number of controllable outputs with 74HC595 shift registers (or a comparable serial-to-parallel IC) so the system scales beyond the ESP32’s native GPIO count. • Build an intuitive Android app that discovers the ESP32 on the loca...

I already have firmware running on an ESP32-based board that includes an RJ45 RS-485/UART port, two analog inputs, several digital I/Os and a small audio stage that automatically answers a SIP/VoIP call and plays audio through an on-board speaker. What I need now is an elegant extension of that code so the same board can also feed data to– and receive commands from – an IoT dashboard app. The new build must keep every existing VoIP feature intact while adding: • A clean, non-blocking interface between the VoIP tasks and the new IoT task set. • Support for both voice playback and tone generation exactly as the current audio path provides. • Reliable sampling of the two AIs along with any DI events, packaged for MQTT/HTTP (whichever you find lighter on re...

I'm looking for a skilled developer to create a unique vocal training device that incorporates wearable technology. This device will be designed to fit around the neck, utilizing sensors and Bluetooth tech. Key functionalities: - Real-time feedback on vocal performance - Visual feedback on a connected app Ideal Skills and Experience: - Expertise in wearable technology development - Proficiency in sensor integration and Bluetooth connectivity - Experience in building user-friendly mobile applications for real-time data display - Background in audio processing or vocal training technology is a plus Please provide samples of similar work and a rough timeline for project completion.

I have a batch of Teltonika FMC125 GPS trackers that I can’t configure because the Teltonika Configurator keeps requesting a login password. I have not performed any in-depth recovery steps yet, though I did try the obvious default-password guesses and even reached out to Teltonika support without success. I still have part of the original paperwork from the supplier, but nothing that reveals or resets the current credentials. What I need is straightforward: please unlock every device so I can access them normally in the Configurator and change settings as required. Whether you guide me through a safe firmware flash, supply a utility, or connect remotely and perform the reset yourself does not matter as long as the units end up fully accessible and functional afterward. Deliverable...

I need three 7-10" quad-copters professionally put together and flight-tested in the UK. All the parts will be shipped directly to you; once they arrive I’d like the build, setup and maiden flights completed within roughly a week. Core spec: • Air-frames: 7-10" class • Electronics we will supply: FPV camera, GPS module and an onboard Raspberry Pi for extra processing • Flight controller: whatever board you are comfortable with, as long as the final stack runs PX4 flawlessly • Power: LiPo packs – please balance, secure and tune for safe discharge rates Your job starts with a clean assembly, neat soldering and reliable cable management, then moves on to firmware flashing, PX4 configuration, PID tuning and a short hover/flight test tha...

I am building a new solar-hybrid inverter around an Infineon reference design and need an experienced technical advisor who can work with me on-site in Bangalore, part-time, through the entire prototype cycle. Your guidance is required across hardware design, firmware development, hardware fabrication, integration and final testing. Most of the base schematics and application notes from Infineon are in hand; what I need now is a sharp eye and skilled hands to adapt those documents to my exact power ratings, oversee PCB layout iterations, supervise fabrication, bring the boards up safely, write and debug the control firmware, and validate the finished prototype under load. Expect plenty of hands-on lab work—oscilloscopes, power analyzers, thermal cameras, rework stations—plus...

I’m looking for a senior technologist who can sit with my Bangalore-based team and guide us through the full hardware-software stack of our new UAV prototype. The work is hands-on and spans three pillars: hardware design, embedded-software bring-up, and end-to-end integration testing. On the hardware side you’ll dive into sensor integration, power-management architecture, and lightweight frame design, checking schematics in Altium/KiCad, reviewing BOM choices, and helping us close EMI and thermal issues. In parallel, you’ll pair with our firmware engineers to refine drivers, control loops and companion-computer interfaces (C/C++, Python, PX4 or ArduPilot experience is ideal). Finally, you’ll shape and run a systematic integration-test plan—bench, HIL and flig...

I need a clean, well-commented Arduino sketch that drives a small traffic-light prototype using LEDs, push-buttons, and a couple of sensors (e.g., ultrasonic or IR) to regulate flow rather than just cycle through a fixed sequence. The idea is to simulate a real intersection where vehicle presence triggers state changes while manual override buttons allow testing of special conditions. Here’s what I expect: • The code must compile on the current Arduino IDE without extra libraries beyond the standard ones. • Normal operation: red, yellow, and green LEDs follow proper timing, but a vehicle-detection sensor shortens or extends green time to keep traffic moving smoothly. • A pedestrian button interrupts the flow safely, inserting a walk phase before resuming. &bul...

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I’m building a single-phase grid-tie solar inverter around the STM32F103 and need both the hardware completed and the firmware written. The control board must handle MPPT, keep perfect grid synchronization, and expose real-time data for remote monitoring. Firmware requirements • Implement a reliable MPPT algorithm suited to PV strings. • Keep the inverter phase-locked to the utility, injecting power with a clean sinusoid and rapid anti-islanding response. • Expose operating metrics (voltage, current, power, temperature, fault states) through Modbus, CAN bus, and Ethernet. Hardware requirements • Schematic and PCB layout for the STM32F103 control board, opto-isolated gate-drive interfaces, sensing circuitry, surge protection, and communication ports. ...

I’m refining a set of custom boards that combine an FPGA-based signal generator with several ESP32 modules. The immediate gap is in analog and digital circuit design: I need a fresh set of eyes to review, debug, and improve the front-end and conditioning stages so our multi-channel waveforms stay clean from kHz up into the low-MHz range. You will also find yourself touching the programmable logic; I use both VHDL and Verilog, so fluency in either (or ideally both) is welcome when tweaks to the signal-generation core are required. On the microcontroller side each ESP32 handles data processing, manages communication protocols, and drives attached peripherals, all written in C/C++. Expect to dive into that firmware whenever hardware changes ripple upward. Key objectives • A...

I need a complete PCB solution for a BeagleBone-based light pod whose primary purpose is, quite simply, “Lightpod.” The concept is already proven on a breadboard; now I want a production-ready board that consolidates the BeagleBone, LED drivers and all supporting circuitry into a compact, manufacturable form factor. What I expect from you • Schematic capture that respects BeagleBone design guidelines and pin-muxing constraints • Optimised PCB layout compatible with standard four-layer fabrication, mindful of thermal paths for high-current LED channels • Clean, clearly annotated BOM with sourcing that avoids hard-to-find parts • Manufacturing outputs (Gerbers, drill files, assembly drawings) plus original design files so I can iterate later in KiCa...

I’m building a compact embedded platform that runs from a single 12 V supply and I need a purpose-built PCB to act as the system’s brain. The board has to host a microcontroller at its core, interface cleanly with several sensors, and drive multiple actuators, all while keeping noise low and layout tight. Here’s what I’m looking for: • Complete schematic capture showing microcontroller, sensor inputs, actuator drivers, power-conditioning and protection circuitry • PCB layout ready for manufacture (Gerber/ODB++ files, drill, pick-and-place, clear layer stack details) • Bill of materials with part numbers that are currently available from major distributors • Basic power-up simulation or design rule check report proving the 12 V rail and o...

I need a clear, ready-to-build circuit diagram that closes the voltage feedback loop on the DC bus of an off-grid inverter running in the 12 V – 24 V range. The diagram must show how a suitable voltage sensor feeds a microcontroller so the firmware can keep the bus voltage within safe limits and trigger protective actions when it strays. Please size all resistive dividers, isolation devices (if required), and any signal-conditioning stages so the microcontroller’s ADC receives a clean, scalable signal. What I expect from you • Complete schematic, preferably drawn in KiCad or Altium, showing the microcontroller, voltage sensor path, power supply rails, and any filtering or isolation you recommend. • Short bill of materials with part numbers that are actually ...

My Texas Instruments LM5170EVM-BIDIR board refuses to deliver any output voltage when I switch it to buck mode. Boost mode also does not run, so I’m convinced the fault is somewhere in power stage or its sensing network. I haven’t probed or ruled anything out yet—no continuity checks, no component swaps—so you’ll be starting with a completely untouched setup. I do have both a multimeter and an oscilloscope on the bench, so I can feed you real-time measurements, screenshots, or scope traces as we move through your diagnostic plan. A hardware-level approach is exactly what I’m after: schematic review, expected waveforms, component-level tests, and, if it comes to it, guidance on swapping parts or jumpers to bring the regulator to life. Description: Contr...

Kiosk Software – Simple Roulette + QR Code Generation (SDK Integration) Description: I have a vending machine with a touchscreen and a working SDK provided by the manufacturer. The machine is already fully functional. I DO NOT need to build a system from scratch. I only need to ADD a new feature to the existing interface. Objective: Add a new option/button on the screen that: 1. Opens a simple roulette (spin wheel UI) 2. User spins the wheel 3. Based on the result, the system generates and displays a QR code on the screen Important: • No need for backend (for now) • QR codes can be predefined or generated locally • No need to dispense physical products in this feature • This is a kiosk/touchscreen interface Requirements: • Experience with kiosk ...

My drone’s flight control software is showing serious stability problems—unexpected pitch and roll changes that make the aircraft drift even in calm conditions. I need an engineer or developer who can dive into the existing flight-control codebase, pinpoint what is causing the instability, and implement a solid, tested fix. The job starts with a code review to isolate the root cause in the flight-control module, followed by refactoring or patching the affected algorithms (PID tuning, sensor fusion logic, or any timing issues you uncover). Once the fix is in place, I’ll need a compiled firmware image plus clear documentation of the changes so I can reproduce the build and flash future units. Acceptance criteria • Drone must hover and track waypoints without unexpe...

I want to bring a small, ESP32-powered toy drone from concept to first lift-off. The goal is purely recreational: a fun flyer that can be controlled from a smartphone rather than a conventional RC transmitter. Core functionality must include reliable auto-stabilization so even a beginner can keep the craft level. Here’s what I already have in mind: • Flight controller: ESP32 (your choice of dev-kit or custom PCB) • Sensors: a compact 6-axis IMU such as MPU6050/ICM-20689 for attitude data • Motors & ESCs: typical micro-quadcopter class, but I’m open to your sizing suggestions • Firmware environment: Arduino IDE or ESP-IDF—whichever you can deliver faster and maintainably • Mobile control: a lightweight Android/iOS app communicating via...

I want a bootable .img image for the Raspberry Pi 4 that turns the board into a fully offline, hardware-style wallet. After flashing the image to an SD card and powering up, I expect a clean graphical interface that lets me: • Generate and manage addresses for roughly forty of the most-used coins and tokens. • Sign and later broadcast transactions only when I briefly connect the Pi to a network. • Move funds straight to a linked bank account by entering a routing and account number—ACH style—without ever needing a third-party exchange. The build has to run reliably with no internet dependency at first boot, keeping all keys on the device and encrypted at rest. A simple on-screen flow for first-time setup, balance overview, and transfers is essential; I shou...

I need a single .img file that I can flash straight to a micro-SD, slot into a Raspberry Pi 4, power on, and start mining—no extra setup, no internet connection, just plug-and-play. The image must boot directly into an advanced graphical interface that lets me monitor hashrate, temperature, accepted shares, pool status, and switch coins without touching the command line. The core requirement is support for the three main algorithms I selected—SHA-256, Ethash, and Cryptonight—so the device can tackle my full portfolio of roughly forty coins. Performance matters: the system should auto-detect optimal overclock settings for the Pi 4, make efficient use of its GPUs/CPUs, and offer pool configuration options over the local network while remaining completely self-contained (...

i am looking for an engineer in power electronic whos has some experience with F280039c or stm32g474 or esp32 to make a spwm for full h bridge inverter ( pedagogic )