Arduino Jobs

I need an expert in low-latency data acquisition systems. We are utilizing FPGA-based DMA hardware to interface with a running application. I require assistance in mapping internal data schemas and establishing reliable logic paths for an external Python controller. The ideal candidate has experience with LeechCore or similar hardware-interfacing libraries and understands C++ memory management.

An obsolete microcontroller in my current hardware sends a stream of control commands over an undocumented UART link. I need those commands captured, fully decoded, and then reproduced from an Arduino so I can drive the target board without the original controller in place. This is a TCU controller from the 1990's that is obsolete. We need to document one-directional serial commands that command a display to display selected gears, error messages, etc. Scope • We will provide captures from a lonely binary logic analyzer using Saleae Logic 2. We can also possibly provide on-demand oscilloscope readings. • Analyse the byte structure: headers, payload, checksums, timing gaps, any hand-shaking characters. • Document the command set clearly enough that I can understand ...

Ich plane eine minimalistische App, die mir in Echtzeit zeigt, wie viel Strom mein Heimtrainer mit integriertem Generator bei jeder Bewegung produziert. Die Anzeige soll die Energieerzeugung klar in Watt ausgeben und gleichzeitig alltagsnahe Vergleichsbeispiele einblenden (z. B. „entspricht einer LED-Lampe für 2 Minuten“), damit der Nutzer direkt versteht, was die erzeugte Leistung bedeutet. Kernaufgaben • Verbindung zu meinem Heimtrainer herstellen und die vom Generator gelieferten Messwerte auslesen. • Live-Visualisierung der aktuellen Watt-Leistung – schlicht, ohne komplizierte Diagramme. • Automatische Einblendung der Vergleichsbeispiele parallel zur Wattzahl. Die Beispiele können flexibel gepflegt oder erweitert werden. • Plattfor...

My Sony HT-A5000 sound bar powers up and responds to the remote, yet there is absolutely no audio on any input—HDMI eARC, optical, or Bluetooth. Cables, TV settings, and source devices have all been ruled out, so the fault is clearly inside the bar itself. I need an experienced audio-electronics technician to: • Pinpoint the component or board responsible for the loss of output (amp stage, DSP, power rail, etc.). • Advise on parts, firmware, or board-level repairs—and, if practical, carry out the work once I ship the unit or module to you. • Verify the fix with a quick video or live call showing sound restored at normal volume on at least two inputs. Please confirm familiarity with Sony service manuals and typical tools for this level of repair (multime...

I need a complete IoT solution built around a Raspberry Pi that lets me monitor key sensor data remotely and automatically analyse the information it gathers. The core goals are: • Continuous data acquisition from the sensors I specify (temperature, humidity and two spare GPIO inputs). • Secure transfer of that data to the cloud or a self-hosted server so I can view it from anywhere. • A lightweight dashboard—web-based or mobile-friendly—that presents live readings, trends and simple analytics (averages, alerts when limits are exceeded, downloadable CSV). Please write clean, well-commented code (Python preferred, but I’m open to Node-RED or similar if it fits better), set up any required MQTT brokers, databases or APIs, and document the inst...

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PCB Designer Needed – Industrial Sensor Board I’m developing an industrial-grade sensor product and need a purpose-built PCB to act as the core of the device. The board will integrate multiple signals, handle local processing, and present clean, conditioned outputs to external control and monitoring systems. It will be deployed in electrically noisy, real-world environments, so robust design and layout quality are essential. I’m looking for someone who can take a design from concept to fabrication-ready output, including schematic capture, PCB layout, and manufacturing files, using tools such as Altium, KiCad, EasyEDA, or equivalent. What I’m looking for Strong experience with: Mixed-signal PCB design (MCU + sensors + power regulation) Power-supply design and ...

I need an experienced STM32 programmer to assist with a robotics project. The microcontroller in use is from the STM32F series. Key tasks include: - Embedded system development - Peripheral interfacing Ideal skills and experience: - Proficiency in STM32F series - Strong background in robotics and embedded systems - Experience with peripheral interfacing and firmware development Please provide examples of previous work in robotics and STM32 programming.

I am in the middle of developing several medical-grade products and now require a dedicated application that lets my engineering team lay out, route, and verify boards without relying on expensive recurring licenses. The tool must be robust enough for commercial product development and, above all, serve the strict documentation needs that come with designing electronics for medical devices. Core need • A built-in, well-organized component library that we can expand, tag with compliance data, and update centrally. Beyond that mandatory feature I am happy to consider extras such as 3-D board previews or SPICE-level simulation, but they are optional and can be discussed once the foundation is proven solid. Deliverables I expect at project close: • A fully functional install...

I’m gearing up to pitch an all-in-one AI device to investors, and I need a rock-solid prototype that runs smoothly on embedded hardware. The centerpiece of this build is advanced natural language processing: the unit has to understand complex queries, keep a fluid dialog, and return meaningful answers in real time. On top of that, secure voice authentication must be baked in from day one—no shortcuts there. Here’s the flow I envision: you flash the firmware onto a compact board (Raspberry Pi, Jetson Nano or similar), connect a mic-speaker array, and the prototype boots straight into an NLP engine capable of offline or hybrid cloud processing. Once powered, it authenticates the speaker by voiceprint, then continues the conversation just like any top-tier virtual assistant...

Overview: We are seeking an experienced embedded/robotics engineer to support integration and configuration of NVIDIA Jetson hardware with ROS 2 and peripheral devices. This is a clearly scoped, technical delivery with defined acceptance criteria. Scope of Work: Configure NVIDIA Jetson device (Linux, drivers, dependencies) Install and configure ROS 2 Integrate external hardware (USB, audio, serial, GPIO as required) Develop basic ROS 2 nodes/interfaces Provide documentation and handover Deliverables: Working system configuration Source code with comments Setup and deployment documentation Basic test/validation steps Required Skills NVIDIA Jetson (Orin / Xavier preferred) ROS 2 (Humble or later) Linux (Ubuntu) Python and/or C++ Hardware integration experience Nice to Have: Audio pipel...

I need a compact robotic arm that can pick small MDF toy components from a feeder, position them accurately, and seat them for the next assembly step — all without any human intervention once it starts. The payload is light, so speed and repeatability matter more than raw strength. A fully automated cycle with whatever sensors or vision you feel are necessary is key; the goal is to press a single button and let the line run. You’re free to choose the architecture that best serves a light-duty task: a desktop-scale 6-axis, a SCARA, or another configuration you trust. Whether you prefer ROS, Arduino-based control, or a PLC is up to you, provided the result is stable, safe, and easy for me to support after hand-off. To keep the project clear, here’s what I expect at delive...

Overview I’m looking for a developer to help me build a real-time integration between Tikfinity (TikTok live donation events) and physical hardware controlled by an Arduino. When users donate during a TikTok Live, Tikfinity should trigger hardware actions (via Arduino) such as opening solenoid valves or activating relays. This is for an interactive live-stream experience. What I Already Have (Hardware) Arduino Nano Relay module 12V power supply 12V solenoid valves (x2) Physical setup already wired or partially wired What I Need Built (Core Requirements) Tikfinity Event Listener Listen for live TikTok events via Tikfinity (gifts / donations) Identify: Gift type Gift count (Optional) Username Logic Mapping Example logic: Gift A → activate Solenoid 1 for X second...

I need a complete PLC application—logic and HMI—that will fully automate both the Ultrafiltration (UF) and Reverse Osmosis (RO) sections of a water-treatment skid. The control scope covers every critical field device on the plant: pumps driven through VFDs, globe and on/off valves, flow meters, level transmitters (LT), level switches (LS), pressure transmitters/switches (PT/PS), and the pH / conductivity probes that protect membrane integrity. The sequence must manage start-up, normal production, back-flush and CIP where relevant, while enforcing interlocks on pressure, level and quality limits. Alarms, trends and manual-override features should be available from an intuitive touch-screen HMI so operators can see live values and step through maintenance modes without needing a...

ESP32 tabanlı, GSM hatlı bir endüstriyel cihaz geliştiriyorum ve projenin omurgasını oluşturacak gömülü yazılıma öncelik veriyorum. Cihaz; SimCom GSM modülü, RFID/NFC etiket okuyucu, 2 analog giriş, 3 röle çıkışı, 1 PWM kanalı, ayrıca ekran ve tuş takımını içerecek. WiFi ile Bluetooth’un birlikte aktif olduğu bir mimari planlıyorum; uzaktan güncelleme / servis kolaylığı da hedefler arasında. Uygulama tarafında cihaz, sahadan GSM üzerinden yaklaşık 200 iş emri alacak, bunları sıraya koyup tamamladıkça yine GSM üzerinden sunucuya raporlayacak. İşlem güvenilirliği, güç kesintisine dayanıklılık ve hat içi (OTA) güncelleme kabiliyeti kritik. Elektronik tasarım ihtiyacım da var; şemat...

Embedded Firmware Development for Kids Companion Robot (ESP32 / RP2040) Project Overview I am building a kids companion robot (ages 3–10) focused on expressive behavior, emotions, routines, and reactions. This is a NON-AI robot. There is NO speech recognition, NO text-to-speech, NO camera vision. The robot behaves like a living companion using: Emotions Reactions Animations Sounds Routines Simple sensors I am looking for an experienced embedded firmware developer who can work on a structured, modular, production-quality codebase, not hobby demos. Core Philosophy (IMPORTANT) Event-driven State-machine based Non-blocking code (NO delay() logic) Long-running stability (hours/days) Clean architecture with clear module separation Hardware Stack (Fixed) Microcontroller: ESP32 / ESP32-S3 /...

I need a rock-solid wiring solution that lets my 12 V PNP proximity sensor talk to an ESP32 inside a stamping factory filled with motors, EMI and loud press strokes. Missed pulses are unacceptable, so every connection, filter and ground scheme has to be bulletproof. Here is what I already know and want: • Sensor: 12 V PNP proximity type. • Logic: ESP32 powered from the same 12 V rail through a regulator—please specify the exact regulator module and any extra filtering you recommend. • Isolation/noise control: I will be using a PC817 optocoupler as the front-end isolator. Your job is to deliver a complete, ready-to-build wiring diagram that covers the sensor, PC817 interface, regulator, decoupling components, shielding strategy and common-ground layout. Include ...

I need a complete PLC application—logic, HMI and SCADA—that will fully automate both the Ultrafiltration (UF) and Reverse Osmosis (RO) sections of a water-treatment skid. The control scope covers every critical field device on the plant: pumps driven through VFDs, globe and on/off valves, flow meters, level transmitters (LT), level switches (LS), pressure transmitters/switches (PT/PS), and the pH / conductivity probes that protect membrane integrity. The sequence must manage start-up, normal production, back-flush and CIP where relevant, while enforcing interlocks on pressure, level and quality limits. Alarms, trends and manual-override features should be available from an intuitive touch-screen HMI so operators can see live values and step through maintenance modes without ne...

I need a complete, working solution that takes live RS-422 data and renders it—both text and graphics—on a 10-inch LCD. The scope covers everything from concept to prototype: • Architecture & part selection: help me choose the most suitable 32-bit microcontroller (Arduino-compatible, ESP32, STM32 or any better fit) plus an appropriate 10-inch panel and its driver board. • Schematic & PCB: create production-ready Altium or KiCad files, including power, signal integrity for RS-422 transceivers and the chosen display interface. • Firmware: write and document code that parses the RS-422 stream, maps parameters to a clean UI, and handles touch (if the panel supports it). • Prototype build & test plan: BOM with supplier links, gerbers, compiled ...

I’m putting together a custom 65% mechanical keyboard and need a complete PCB schematic that brings a premium feature-set together in one tight design. Core requirements • Dual-mode connection: wired over USB-C plus Bluetooth 5.1 for low-latency wireless use. • LED Lighting. • Integrated battery-charging and power-management section so users can swap seamlessly between wired and wireless. • A small on-board OLED display (think the status screen on the Apex Pro TKL 2023) that can show layer, battery, and custom messages. • One rotary-encoder knob that can drive three separate actions: – Volume control – Lighting effects – Macro commands (via firmware layer changes) Layout & electronics The schematic must follow...

Project Description I am developing an educational NFC-based audio player for children (ages 2–7). The concept is simple: a child places an NFC figurine on the box, and an associated audio story is played. The project already has a custom PCB prototype (ESP32-based) and early firmware work, but I am looking for a new freelancer to take over, audit the existing work, and complete a fully functional prototype. This is a serious product project, not an experiment. What Already Exists: I will provide a structured project folder including: Custom PCB files (Gerber, BOM, Pick & Place, STEP file) PCB size: 80 × 80 mm ESP32-based design NFC reader integrated MicroSD slot Battery charging circuit (Li-ion) USB-C Speaker output + headphone jack NFC detection already demo...

I aim to develop a solution that will facilitate data communication between an Arduino UNO and a SIM7600E using AT+COMMAND. The primary data in focus will be temperature sensor readings. Key Responsibilities: - Setting up a reliable connection between Arduino UNO and SIM7600E - Implement AT+COMMAND for effective communication - Design a protocol for transmitting temperature sensor data Ideal Skills: - Solid knowledge of Arduino - Proficiency in handling SIM7600E - Experience in implementing AT+COMMAND - Understanding of sensor data transmissions. Please ensure you can efficiently deliver on these requirements, and provide the mentioned sensor data communication before placing your bid.