Arduino Jobs

I need to move a single 3 MB binary file from an ESP32 to the internet through a SIM-based 4G module, landing it on my Nginx web server with an HTTP POST request. The modem’s buffer tops out at roughly 1400 bytes, so the core challenge is breaking the payload into compliant pieces, re-assembling it server-side, and confirming data integrity. What matters to me is a clean, repeatable solution that copes with transient network drops and keeps RAM use on the ESP32 reasonable. C/C++ (Arduino / IDF) is fine; I can flash and test any firmware you provide. If chunked transfer encoding or multipart strategies are a better fit than raw slicing, I’m open to that—so long as the final file appears intact under Nginx. Deliverables • Well-commented ESP32 source demonstrating t...

মোবাইল ইঞ্জিনিয়ারিং নিয়ে একটি প্রজেক্টের ধারণা হলো "অ্যান্ড্রয়েড নিয়ন্ত্রিত রোবোটিক আর্ম"। এই প্রজেক্টে একটি অ্যান্ড্রয়েড অ্যাপ্লিকেশন ব্যবহার করে একটি রোবোটিক বাহু নিয়ন্ত্রণ করা হবে, যা মোবাইল ইঞ্জিনিয়ারিংয়ের হার্ডওয়্যার এবং সফটওয়্যার উভয় দিকের জ্ঞানকে কাজে লাগায়। প্রজেক্টের বিবরণ উদ্দেশ্য: একটি অ্যান্ড্রয়েড ডিভাইস থেকে ওয়্যারলেস বা ব্লুটুথ সংযোগের মাধ্যমে একটি রোবোটিক বাহু নিয়ন্ত্রণ করা। প্রযুক্তি: হার্ডওয়্যার: রোবোটিক বাহু, মোটর, Arduino বা Raspberry Pi-এর মতো মাইক্রোকন্ট্রোলার, এবং সংযোগের জন্য ব্লুটুথ মডিউল। সফটওয়্যার: অ্যান্ড্রয়েড স্টুডিও ব্যবহার করে একটি অ্যান্ড্রয়েড অ্যাপ্লিকেশন তৈরি করা, যা রোবোটিক বাহুর বিভিন্ন মুভমেন্ট (যেমন, ঘোরানো, উপরে-নিচে করা) নিয়ন্ত্রণ করার জন্য কোড লিখবে। প্রক্রিয়া: একটি রোবোটিক বাহুর নকশা তৈরি করুন এবং এটিকে প্রয়োজনীয় মোট...

I need a clean, well-commented program for an ESP32-P4 that turns the board into a dedicated life counter for a four-player game of Magic: The Gathering – Commander format. The hardware on my bench is an ESP32-P4 module paired with a basic character/graphic LCD screen, and that will be the sole display. No OLEDs, LED matrices, or other output devices are in the mix. is the board being used Core behaviour • On boot the LCD should present four life totals, each starting at 40. • Only the life totals themselves need to appear—no player names, mana counters, or extra data. • Each player’s total must be clearly separated on the screen so a quick glance tells everyone where they stand. Touchscreen interface to reset and or add or subtract totals from the...

I’m building a compact, medically-oriented wearable that measures bio-impedance through four skin electrodes, monitors temperature, optionally logs motion with an IMU, and streams everything to an iPhone via BLE for HealthKit integration. The board must also listen for, and correctly parse, broadcasts from both Abbott and Dexcom continuous-glucose patches so the data can be combined in the same mobile app. Core requirements • MCU: Cortex-M4 class; I’m open to either the nRF52840 or the STM32U5—choose whichever lets you meet the radio, power, and memory demands most elegantly. • AFE: MAX30009 wired to four electrode pads for single-ended or differential bio-impedance measurements. • Sensors: digital temperature sensor (your choice of proven part); opt...

Trekovaci gps, imu zarizeni pro sportovce

I’m integrating a T6 AC Servo motor into a Python workflow over Modbus so that its motion follows real-time hand positions detected with MediaPipe. The Modbus link is live, but whenever I issue motion commands the drive flashes Error 100 most consistently (occasionally 180 or 102). Until that fault is eliminated the rest of the pipeline is stuck. I need someone who already knows this drive family and the quirks of Modbus register maps. Your task is to pinpoint why the servo refuses the command—whether it’s a parameter, register offset, timing, checksum, or anything else—and then deliver a clean sample script that drives a simple move without triggering faults. I should be able to feed XYZ targets coming from MediaPipe and watch the motor track smoothly. Deliverabl...

I need a clean, well-commented Arduino sketch that continuously reads the serial stream coming from my magnetometer sensor, extracts the meaningful fields, time-stamps each record using a GPS fix, and then forwards the newly formatted string to the board’s main Serial output. Example serial string in and required serial string out will be provided. Data in is at 10hz and data out I need to be 1hz. The core flow is simple: magnetometer data in → parse → append GPS time (UTC+8 Perth Time) → Serial out. All processing must be non-blocking so other tasks can be added later. Please write in plain C++ for the standard Arduino IDE and keep RAM usage modest; the board in use is an 8-bit AVR. Deliverables • One .ino file with clear comments showing the parsing logic, ...

Fix PiKVM V4 Mini Microphone (WebRTC audio not working) Description: I need help enabling two-way audio on a PiKVM V4 Mini setup. Everything works except the microphone from my personal laptop (MacBook) does not transmit to my other computer through PiKVM. Video and HDMI sound (incoming audio) already work. I only need the USB microphone emulation (outgoing audio) to function. What’s already done: PiKVM V4 Mini connected to work PC (HDMI IN + USB). Audio through HDMI works fine. PiKVM updated to the latest firmware. WebRTC mode active. /etc/kvmd/ file includes: otg: enabled: true devices: mic: type: usb class: audio enable: true Restart and module commands run (systemctl restart kvmd, modprobe g_audio). Still no microphone toggle or “PiKVM M...

I need a reliable, step-by-step walkthrough for pulling a complete firmware image off my ESP-32 over USB so I can keep it as a safety backup. The board is powered up and reachable, but I’m still undecided on which utilities or drivers to install. Here’s what I’m looking for: guide me in choosing and installing the right tools—, Espressif’s Flash Download Tool, or any other method you know works—then walk me through the exact commands to read the entire flash and save it locally. Once the dump is complete, help me verify its integrity so I’m confident the backup can be flashed back later if needed, and assist with flashing new device. The deliverables are simple: • A verified binary file containing the current firmware • Clear, rep...

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’m putting together a lightweight, always-on driver-drowsiness monitor that runs reliably on a Raspberry Pi Zero 2 W (it should also scale fine to a Pi 4). The system will watch two USB webcams—one on the driver, one on the road—and continuously score fatigue in real time. Core workflow • Capture synced frames from the driver-facing and road-facing cameras at a modest, configurable FPS. • Detect eyes (and ideally mouth & basic head pitch) with whichever method performs fastest on the Zero 2 W—OpenCV Haar, MediaPipe-lite, or a hybrid is fine; I’m not tied to a specific library as long as it stays lean. • Derive blinks per minute and PERCLOS over a 30–60 s sliding window, then combine them into a 0-100 Risk Score. • When t...

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 &...

We are developing an AI-powered innovative product. The device aims to track a location, activity, and health indicators using IoT and BLE-based technology. We are seeking an experienced IoT hardware and firmware developer/freelancer who can help us develop a functional prototype (Phase 1) integrating the following features:

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

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). ...

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’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 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...

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 am looking for a Freelancer who can help me debug a small program running on an ESP32 which does two things: (a) downloads a value from an API, and parses it into a variable using ArduinoJSON - this already works and runs every ten seconds with the value output; and (b) runs a two-panel P10 display using the DMD32 library and shows the output. When I run the code with the two halves running together, it crashes and reboots with: assert failed: xQueueSemaphoreTake queue.c:1554 (!( ( xTaskGetSchedulerState() == ( ( BaseType_t ) 0 ) ) && ( xTicksToWait != 0 ) )) Backtrace:0x40083141:0x3ffbee5c |<-CORRUPTED ELF file SHA256: 0000000000000000 This happens when timerAlarmEnable(timer); happens on line 67. I'm not sure why - it might be a clash within a library or something I ...

I’m looking for someone who can guide a group of middle-school students through the very first steps of robotics. They’re absolute beginners, so the focus is squarely on basic programming and coding—things like understanding simple logic, writing their first lines of code, and seeing how that code controls a small robot. Here’s what I need: • A concise lesson plan that introduces the fundamentals in an engaging, age-appropriate way. • Live online sessions (or clearly recorded alternatives) that let the class follow along and experiment in real time. • Simple hands-on exercises—preferably using platforms such as LEGO EV3, VEX IQ, Arduino, or any comparable kit you’re comfortable with—to show how code turns into movement. &bull...

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 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 ...

I’m building a single-color LED matrix scoreboard for snooker and need a working prototype that runs on either a Raspberry Pi or an ESP32—whichever you feel will give the most stable performance. The unit must: • Drive the LED matrix to show each player’s score, current break, and frame status in real time. • Accept commands from an Infrared (IR) remote to update score, record current break, switch the active player, reset the board, and award a frame. • Push every score change instantly to my existing scoring website through a simple REST API (documentation ready on my end). You’re free to design the PCB or use off-the-shelf driver boards, but I’ll need: 1. Firmware source code with clear comments. 2. Wiring schematic and a ...

I use a Samsung SmartTag2 tied to SmartThings Find and need a hands-off way to know the moment it pops up in a location that isn’t next to me. The idea is simple: once the tag is picked up by another Android device—meaning it has definitely left my own phone’s Bluetooth bubble—Tasker should fire an unmistakable alarm on my phone (and optionally a push). What I’m looking for • A Tasker profile/scene that listens for the SmartTag2’s “detected at new location” event, whether you tap directly into SmartThings API, intercept its push notifications with AutoNotification, or use another reliable method. • The profile should run in the background, no root required, and wake up the phone with sound, vibration, or any channel...

I'm looking for a hardware and programming solution to enable an Arduino to send either a text or an email over Wi-Fi. Requirements: - Use of Wi-Fi for communication - Capability to send either texts or emails (whichever is simpler) - Flexibility in choosing the platform for sending notifications (SMS, instant messaging, etc.) Ideal Skills & Experience: - Proficiency in Arduino programming - Experience with Wi-Fi communication modules (like ESP8266 or ESP32) - Familiarity with SMS and email APIs - Knowledge of various messaging platforms and their integration with Arduino Please provide a solution that is reliable and easy to implement.

Estoy desarrollando un proyecto con la placa esp32-s3-touch-amoled-1.8 (Es un modulo ya fabricado. Adjunto link oficial: ) El problema lo tengo al cargar la pantalla, no se enciende. Tiene que haber alguna libreria mal. Da igual el codigo lo que haga que el problema es que la pantalla no inicia. Lo que necesito es una aclaración sobre que librerias y versiones utilizar. La placa la tengo clara porque la tengo localizada en ARDUINO IDE. Me falta librerias y si hay que modificar alguna. El modulo funciona porque cargo un .bin de ejemplo y arranca. Aqui explican algo mas de la placa: y aqui están las librerias demo que dice la pagina: Me suele dar fallo en compilar Arduino_GFX. Necesito asesoramiento rapido. Presupuesto 10€. Cuando ya tenga el codigo hecho, neces...

Hola, Estoy buscando un ingeniero o equipo de ingeniería de hardware/firmware para desarrollar el dispositivo "edge" (captura de datos) para una plataforma de Mantenimiento Predictivo (PdM) ya construida y funcional. El freelancer seleccionado será responsable de diseñar, prototipar y (opcionalmente) preparar para producción un dispositivo sensor que se instalará en maquinaria industrial rotativa (ej. lavadoras industriales). El dispositivo debe integrar (en un PCB y carcasa robustos) la "trinidad" de sensores de PdM: - Sensor de Vibración (Acelerómetro, ej. piezoeléctrico). - Sensor de Corriente (ej. CT no invasivo). - Sensor de Temperatura. Consideraciones de Hardware: Se valorará la experiencia en: -...

보다 자세한 내용을 확인하시려면, 회원 가입 또는 로그인 절차가 필요합니다.

I already have a Juntek JDS-2900 signal generator wired to an HC-05 module over TTL. What I am missing is an Android application that talks to the HC-05, lets me adjust frequency, and sends a clean Start / Stop command—all through a set of straightforward on-screen buttons. Stage 1 – Generator control • Establish a reliable Bluetooth SPP link to the HC-05. • A minimalist interface with the database of frequency protocols and three main buttons (Start, Stop and Pause) and a frequency input that pushes the new value to the generator instantly. • Confirmed compatibility with Android 8+ phones and tablets. Stage 2 – EMG overlay Once the controller is stable, I want to plug an EMG sensor into the same app workflow. The goal is to read muscle-tension da...

I’m building a compact monitor that reads oxygen levels, shows them on a small graphic LCD, and triggers alarms when thresholds are crossed. Here’s the functionality I’m after: • Sensor interface: Accept input from a standard electro-chemical or digital oxygen sensor (I can source the sensor, you handle the wiring and calibration in code). Video link shows the sensor and the code he used. • Graphic LCD output: Continuously display the real-time O₂ percentage on a monochrome or simple-color graphic LCD, large enough to read at a glance. No touchscreen features are needed. • Alarms: – Audio: buzzer or small speaker that sounds when levels go below or above set limits. – Visual: a single red LED that blinks in sync with the audio alar...

Preciso de um sistema que, instalado num avião RC, calcule continuamente o ponto exato onde uma carga de aproximadamente 2 kg ­atingirá o solo assim que for liberada. A aplicação serve ao nosso método de entrega por drones/aviões RC, portanto a projeção tem de acontecer em tempo real, atualizando-se até o instante do desprendimento. Os dados que quero acompanhar durante toda a queda livre são a velocidade de descida, o tempo decorrido desde o drop e, sobretudo, a previsão precisa do local de impacto. A solução pode rodar num microcontrolador (Arduino, ESP32, PX4), num companion computer em Python/C++ ou até num app móvel—desde que receba telemetria de GPS e barômetro do...

I need Panel for poker Chips

I have arduino and all senors and devices i want help to resolve.

I’m looking for an embedded-software engineer to create the firmware that will live directly on the chips driving my panel system. The hardware layout is finished; what I need now is clean, reliable code that can read sensor inputs, handle display/back-light control and talk to a host controller over standard buses. The exact feature set—whether we lean more on data monitoring, an external control interface or built-in diagnostics—will be finalised together once you’ve reviewed the schematics and datasheets I’ll share. What matters most is a maintainable codebase that can be flashed to production silicon and scaled for future panel variants. You’ll be working close to the metal, so solid C/C++ skills, peripheral setup (GPIO, ADC, I²C, SPI), interr...

I’m building a board game and need a very small, self-contained timer that players can reset with a single button press. Here’s what I’m after: • One working prototype based on any small microcontroller (Arduino, ESP32, or a comparable board—whichever keeps parts cost and footprint low). • When the button is pressed the device must start a 10-second countdown, play a steady buzzer tick during the count, and restart the count if the button is pressed again before time runs out. • At zero, the ticking stops and a distinctly different buzzer tone sounds once to signal “time’s up.” I only need the hardware and firmware for this basic proof of concept, assembled, tested, and shipped to Finland. Please include: • Examples of pa...

Saya sedang memperkaya situs (tolong pahami website apa ini) dengan berbagai layanan profesional di bidang pengembangan perangkat lunak dan digital services, dan membutuhkan layanan Anda di dalamnya. Setiap listing yang berhasil dipublikasikan, lengkap dengan gambar dan profil yang memikat, akan saya hargai Rp 10.000. Apa yang harus dikerjakan: * Menyiapkan daftar layanan pengembangan perangkat lunak Anda atau lainnya (LoRa, IIoT, web, mobile, automation, dan sejenisnya). * Untuk setiap layanan, menulis deskripsi singkat yang jelas dan menarik. * Melampirkan satu gambar representatif beresolusi baik (bebas lisensi atau milik sendiri). * Mengisi listing layanan Anda dengan jelas deskripsinya, membuat tier level penawaran jasa jika diperlukan. Proses saya sederhana: * Kirim list j...

Project Overview: We are building a local-only, voice-first assistant on a Raspberry Pi 5. The system should be fully offline, modular, and capable of handling voice commands via a wake word. Core functionalities include local speech recognition (STT), text-to-speech (TTS), lightweight memory, and a FastAPI-based skill layer. No cloud or web interface required at this stage. This is not a research or experimental project. We want a working, reproducible v1 setup with clear documentation, suitable for future modular expansion. Hardware (provided by client): -Raspberry Pi 5 (8GB RAM) -ReSpeaker 4-Mic Array (compatible with Pi) -Creative Pebble V3 Speakers (3.5mm input) -32GB microSD card -(Optional for future: 1TB NVMe SSD via UGREEN USB-C enclosure) -(Optional: GPIO button for wake trigge...

I need an LED display for an incremental rotary encoder. The display should be a simple numeric display showing 0-360 degrees with 3 decimal places. A "zero" button will be needed. Requirements: - Use of LED technology - Simple numeric display - Capable of showing 5-6 digits Ideal Skills: - Experience with LED displays - Familiarity with rotary encoders - Ability to design simple numeric interfaces Looking forward to your proposals!

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.