Arduino jobs

...camera solution, smart buoys, or a hybrid of these. What matters is proven, repeatable detection of hazardous situations (e.g., prolonged submersion or lack of movement) and an immediate audible and mobile alert. Deliverables • System architecture diagram showing all hardware and data flow • Complete component list with datasheets or purchase links • Fully commented firmware or software (Arduino, Raspberry Pi, ESP32, OpenCV, etc.) ready to compile and run • Alert interface mock-up (mobile or web) demonstrating how supervisors receive notifications • Concise test protocol confirming detection within 2 seconds and continuous operation for at least 30 minutes Acceptance criteria • Prototype or simulated demo clearly shows automatic detec...

...Unity game with Windows build, Unity project folder, assets, scripts, and walkthrough video. No. of Websites: 2 1. Showcase Portfolio Website – online professional portfolio for job application. 2. Creative Incubator Website – campaign website for the group prototype/project. No. of Physical Computing / Arduino Projects: 7 1. Arduino Experiment 1 2. Arduino Experiment 2 3. Arduino Experiment 3 4. Arduino Experiment 4 5. Arduino Experiment 5 6. Arduino Experiment 6 7. Final Operational Arduino Project No. of Reports / Written Documents: 8 1. Physical Computing Portfolio PDF. 2. Creative Incubator Individual Report – 1,500 to 3,000 words. 3. Cyber Security Forensic Investigation Report – 2,500 words. 4. Cyb...

This project involves the design ...implementation of a digital discrete-event control system for two industrial automation scenarios. The first task is a two-tank level control system, where an Arduino or PLC reads four level sensors and controls three valves to manage filling, transfer, and drainage while preventing overflow and dry running. Deliverables I expect at each milestone: • A fully functioning and tested Arduino sketch, thoroughly commented • A clear wiring diagram or schematic showing every connection • Concise build notes so I can replicate the setup on my bench I’m ready to start as soon as we agree on an initial approach and timeline. If you’ve built custom Arduino projects before and enjoy collaborating with someone wh...

This project involves the design and implementation of a digital discrete-event control system for two industrial automation scenarios. The first task is a two-tank level control system, where an Arduino or PLC reads four level sensors and controls three valves to manage filling, transfer, and drainage while preventing overflow and dry running. The second task is an electro-pneumatic sequential control system, where the controller operates two cylinders in the sequence A+ B+ A– B– and controls a conveyor motor using proximity and magnetic sensor feedback. The project includes control logic design, implementation code, simulation or testing evidence, engineering modelling of the tank dynamics, component selection, and justification of the chosen controller platform.

I need a Python/Arduino developer to create the code for an Adafruit RP2040 CAN board. The board will take in an analog voltage and output to a CAN based device. Key Requirements: - Converts 0-5V analog signals into CAN-based messages. - Convert can messages coming in and rebroadcasting to a different address - Broadcast status and wake messages to device being controlled. Ideal Skills & Experience: - Proficient in Python and/or Arduino and familiar with Adafruit Feather ecosystem - Experience with CAN protocols and message formats

I need an experienced embedded systems and PCB design engineer to design a compact NFC Reader module based on the ESP32 microcontroller and NFC transceiver. The board should read NFC tags and toggle a relay output to control external devices such as door locks, motors, or other automation equipment. Key Functional Requirements: - ESP32 as the main microc...input voltage range: 10–24V DC - Multi-rail power supply: - LED indicator header pins for visual feedback Firmware Requirements: - Read UID from NFC tags - Toggle relay on valid tag detection - Sleep mode support for low power consumption Deliverables: - Complete schematic design - PCB layout - Gerber files ready for fabrication - Bill of Materials (BOM) - Firmware source code (ESP-IDF or Arduino framework) - Design...

I need an Arduino sketch to operate four stepper motors in a reversible sequence, activated by a push button. The motors should run one after another. Limit switches will be used for safety. Requirements: - Operate four stepper motors - Start sequence with push button - Motors run one after another - Reversible sequence - Use of limit switches Ideal Skills and Experience: - Proficiency in Arduino programming - Experience with stepper motors and limit switches - Ability to create custom motor sequences

I’ve wired a sensor to an M5Stack unit and now need a clean, reliable firmware package that brings everything together. The core goals are: - To develop a firmware for M5Stack unit - To design User Interface - To build android and iOS apps for communication to M5Stack You’re free to use Arduino IDE, PlatformIO or UIFlow; whichever lets you move fastest while keeping the code readable and easy for me to tweak later. The delivered repository should contain: 1. Well-commented source code 2. A brief README explaining pin assignments, library versions, and how to flash the firmware 3. UI assets (icons, fonts) if any are custom If you’ve already built similar M5Stack dashboards or sensor gateways, let me see a quick clip or screenshot—that will speed up hir...

...(Custom Design) Project Description: I am looking for an experienced Electronics/Hardware Engineer to develop a functional prototype of a custom GSM-based smart lock designed for farmhouse and agricultural security. Unlike standard "plug-and-play" kits, this is a custom-built system designed for high durability and specialized mechanical features. Key Technical Requirements: Microcontroller: Arduino Nano or ESP32 preferred for the initial prototype. GSM Module: Must use SIM800L or a 4G-compatible module (e.g., SIM7600) for remote operation via SMS and Call. Actuation: High-torque 12V DC motor control (Actuator or High-Torque Metal Gear Servo). Custom "Wiggle/Multi-Fire" Logic: The system must be programmed to attempt the locking/unlocking action multiple...

...Firebase in real-time for motor ON/OFF command * Control relay accordingly * Update motor status back to Firebase 4. Stability: * Handle WiFi connection + auto-reconnect * System should run continuously without crashes Control Model: * Manual control via Flutter app (button-based ON/OFF) * Need suggestions for future automatic threshold logic Deliverables: • Clean and well-commented ESP32 code (Arduino IDE preferred) • Firebase database structure (simple & efficient) • Security rules (basic setup) • Wiring diagram • Setup instructions • Video demo showing full working system Goal: Real-time working system: App ↔ Firebase ↔ ESP32 ↔ Motor Location: Jaipur (preferred local support, but remote is also acceptable) Please share: ...

I want a doorbell that greets visitors in my own words rather tha...things or gives cleaner audio. What I need from you • A working prototype that plays a clear, custom voice recording on each press • An easy method for me to re-record or swap messages (onboard mic, micro-SD, or any straightforward approach you prefer) • Schematics, parts list, and simple installation notes so I can reproduce or service the unit later If you already have experience with Arduino, ESP32, or dedicated voice ICs, feel free to choose the platform you trust most; reliability and audio clarity matter more to me than brand names. Let me know how you plan to tackle the power, amplification, and storage, and roughly how long you’ll need to deliver a tested unit ready to bolt o...

...switch with a rotary potentiometer and feeds a clean PWM signal into an Arduino-based drive system for an axial flux motor traction inverter. When the side button is depressed, the rotary pot should dictate motor speed; the instant the button is released the output must drop to the same state as an e-stop, guaranteeing zero drive. The housing has to be fully 3D printable on a typical FDM printer (200 × 200 × 200 mm envelope, PLA or PET-G). Ergonomics matter—I’m picturing something that can be gripped like a bicycle throttle with the thumb naturally resting on the kill switch—but feel free to propose alternatives if they remain compact and printable without supports in awkward internal cavities. I’m an advanced Arduino user, so focus ...

I’m building a small interactive sound board driven by an Arduino and the MPR121 capacitive-touch controller. Between five and eight copper-tape pads will act as the touch points; the moment any pad is tapped it should fire a single, corresponding MP3 track through a DFPlayer Mini, then stop—no looping, no timed fades. Here’s the workflow I need solved: • Code that links each of the MPR121’s channels to its own MP3 file and plays the file once per touch, with simple debouncing so accidental retriggers are avoided. • Reliable wiring that ties the Arduino, MPR121, DFPlayer Mini, a small Class-D amplifier and speaker together, plus a spare GPIO line that can mute the speaker and divert audio to a 3.5 mm headphone jack when a plug is detected...

Hi Freelancers! So i have an assignment i need to make for my school in IoT regarding Arduino Mega 2560. Its about the following: Design and implement a data logger for hive monitoring that can measure the temperature and humidity inside the hive and outside the hive. In addition, there must be a sensor that can measure how much sunlight the hive is exposed to (sunlight intensity). The system must measure how external weather conditions (temperature, humidity and sunlight intensity) affect the bee colony's development. Create a system with 2 x temperature and humidity sensors (1 outside and 1 inside) and 1 sensor that can measure how much sunlight the hive is exposed to (outside), which saves data on an SD card every 10 minutes. It must mark the times (date and time) each tim...

Arduino firmware and PCB design

...someone to design and deliver the working electrical and electronic system. --- Scope of Work 1. Timekeeping & Motor Control** - Accurate clock circuit (RTC module preferred, e.g. DS3231) to drive the rotation at the correct speed - Stepper or gear motor selection and driving circuit for smooth, precise rotation (1 full rotation = 12 hours) - Motor driver circuit/microcontroller programming (Arduino, ESP32, or similar) 2. Power Delivery to the Rotating Arm - Design a reliable method to power the LED on the rotating arm without wires twisting — options include: - Slip ring (preferred for simplicity) - Inductive/wireless power transfer coil - Specify components and provide wiring schematics 3. LED Circuit - Select an appropriate low-voltage directional LED or spo...

Title: Build a USB Power Monitoring Device...a pass-through (input power → device → output to phone/load) Preferred components: - INA219 (or similar current/voltage sensor) - ESP32 / Arduino - 0.96” OLED display (I2C) Deliverables: - 1 fully working prototype (hardware) - Clean and working source code - Circuit diagram / wiring schematic - List of components used Nice to have (optional): - Compact design - Basic enclosure (3D printed or simple casing) Budget: Open to proposals (expected ₹1,000 – ₹2,000 depending on experience) Timeline: 1–2 weeks Please include: - Similar projects you have worked on - Your approach to building this device Only apply if you have experience with Arduino/ESP32 and sensor integration Below are attached some...

⸻ ! Project Title: Smart Irrigation System *Bullet Points: * Developed an automated irrigation system using soil moisture sensors * Used Arduino for hardware control * Reduced water usage by up to 30% through smart scheduling * Integrated mobile alerts for real-time monitoring * Tested system on small-scale # Full Description: The Smart Irrigation System is an automated solution designed to optimize water usage in agriculture. It uses soil moisture sensors to monitor the condition of the soil and determines when irrigation is necessary. The system is powered by an Arduino microcontroller, which processes sensor data and activates the water pump accordingly. This reduces unnecessary watering and conserves water resources. Additionally, the system can send mobile notifica...

⸻ ! Project Title: Smart Irrigation System *Bullet Points: * Developed an automated irrigation system using soil moisture sensors * Used Arduino for hardware control * Reduced water usage by up to 30% through smart scheduling * Integrated mobile alerts for real-time monitoring * Tested system on small-scale # Full Description: The Smart Irrigation System is an automated solution designed to optimize water usage in agriculture. It uses soil moisture sensors to monitor the condition of the soil and determines when irrigation is necessary. The system is powered by an Arduino microcontroller, which processes sensor data and activates the water pump accordingly. This reduces unnecessary watering and conserves water resources. Additionally, the system can send mobile notifica...

...reader so a simple tap from a pre-tagged wristband opens the lid, deducts one credit, shows status with an LED, and closes the lid again after three seconds. Scope of work • Remove the stock IR proximity module from the dustbin’s control board and neatly position the RC522 reader in its place. • Wire the reader to an Arduino Nano, plus a dual-colour LED (green when at least one credit remains, red once all six credits are consumed). • Write clean, well-commented Arduino code that: – recognises authorised wristbands, – allows exactly six lid activations per band, then disables further taps, – triggers the servo/actuator to open, waits three seconds, then closes, – debounces multiple reads so one tap equals ...

...selection Wire/cable drive design or better cost-effective drive recommendation Assembly instructions Testing and troubleshooting guide Cost estimation for prototype and mass production Preferred Skills Mechanical CAD design Robotics/automation Solar panel cleaning system design Motor and drive mechanism design Wire/cable drive or belt/pulley mechanism Embedded electronics PCB/PCBA design ESP32/Arduino/STM32 firmware Low-cost product development DFM/DFA for manufacturing Expected Output A complete working prototype design that can be fabricated, assembled, tested, and later converted into a manufacturable product. Please share: Relevant portfolio Similar projects completed...

I want a project to be made based on Arduino Mega 2560. There are 6 tanks on each side of the centreline; the arrangement of tanks is attached herewith. The 4 tanks are at the lowermost level, and 2 tanks are on the 1st level (above the lower level), all 6 on both sides of the centreline. There are multiple motor pumps interconnecting the tanks. The aim is to stabilise the entire system around the centre of gravity at the middle of the centreline. Whenever there is any tank filled, the system should automatically detect (using 2* MPU6050 sensor) any longitudinal and transversal shift, and should start the motor to fill the tanks in the opposite direction (using 18*dc pumps), this could be longitudinal shift as well as transversal shift. And therefore should be able to stabilise th...

...Full Project Document 1. Project Overview Develop a full self-hosted GPS tracking system for 150 regular vehicles , real-time tracking, offline maps, and SIM management. working in windows OS. 2. Hardware Requirements Requirement Details Device Valtrack V4 (VALTRACK-V4-VTS-ESP32-C3 4G-LTE in case) Connectivity 4G LTE + GPS (Ublox) Power 12V/24V + OBD-II Protection IP67 Programming AT Commands / Arduino 3. Software Requirements 3.1 Backend Component Technology Function Tracking Engine Traccar Receive GPS data Database PostgreSQL + PostGIS Store routes & events Maps OpenStreetMap Offline Display maps API REST Communication Language Node/Java/Python Backend logic 3.2 Frontend Dashboard Feature Description Map All vehicles in one view Status Color-coded states Popup Speed, fuel, ...

I’ve put together a prototype smart vending machine around an Arduino UNO that authenticates users with an RC522 RFID reader, lets them pick Snickers or Skittles on a 4 × 4 keypad, and drives stepper motors to release the selected treat. Each part works on its own, yet when I run the full sketch the system freezes, tags go unread, or the wrong motor spins. I don’t have a complete wiring diagram yet, so one of the first tasks will be helping me draft a clear schematic before we dive into the code. From there, I need comprehensive guidance: • Debugging the existing sketch so RFID login, keypad input, and AccelStepper control cooperate without blocking the loop • Advising on clean wiring, power distribution, and noise suppression to keep the motors from ...

...control. --- ### *Key Responsibilities* * Develop firmware for microcontrollers (ESP32/Arduino/STM32) * Integrate hardware components: * Relay / Contactor (power control) * Energy meter (kWh tracking) * GSM/WiFi module (communication) * Implement communication between device and backend (HTTP API or MQTT) * Build and manage *OTA (Over-The-Air) firmware update system* * Ensure *offline functionality* (device should enforce rules without internet) * Implement *anti-tamper mechanisms* (bypass detection, alerts) * Collaborate with ASP.NET developer for API integration * Support prototyping, testing, and deployment --- ### *Technical Requirements* * Strong experience with *embedded C/C++ (Arduino or ESP-IDF)* * Experience working with *ESP32 or similar microcontrol...

Project Brief: Stealth-Modified Automatic Parking Disc (Certified ...fully automatic. No user interaction should be needed after parking. • No visible alterations (e.g., wires, unusual controls, abnormal movement patterns). • Power should remain efficient — preferably still battery-powered or with a hidden upgrade that doesn’t draw attention. Ideal Freelancer Profile: I’m looking for someone with experience in electronics, microcontroller programming (e.g., Arduino), or embedded systems. Ideally, you’ve worked with consumer electronics, automotive modifications, or smart devices before. Both functionality and stealth are equally important for this project. ⸻ Let me know if you have questions or need specific details (such as device models). Loo...

...minutes 4. Code written in Arduino IDE (C++), well commented, provided to me as source files 5. Both units bench-tested together and confirmed working before delivery What I will handle separately: - A licensed electrician will install a USB power supply inside the heater cabinet for the receiver unit - The electrician will connect the relay output to the W/R terminals on the heater control board - The sender unit will be powered by a standard USB phone charger near the thermostat Parts: I am happy to purchase parts based on your recommendation, or you can supply them and invoice me. Expected parts: 2x ESP32 dev boards, PC817 optocoupler, 1kΩ and 10kΩ resistors, 5V single-channel relay module, breadboard or stripboard, short hookup wire. Skills required: - ESP32 / ...

...flickering, or visible artifacts during image swaps. 3. Media Handling: Code must mount the Micro-SD card and loop through a folder of JPEGs or PNGs. Images should be neatly scaled or cropped to fill the circular 360 × 360 area. 4. Rotation Support: Include a simple logic to rotate images 90/180/270 degrees based on a filename suffix (e.g., ). Deliverables • Portable Source Code: A complete Arduino IDE project folder (.ino plus all necessary local .h and .cpp drivers). The project must be "self-contained" (all hardware drivers in the local folder) so it compiles on a clean install without path errors. • Flashable Binary: A compiled .bin file that I can flash directly to the board using or a web-flasher for immediate verification. • README: A brief ...

...or visible artifacts during image swaps. 3. Media Handling: Code must mount the Micro-SD card and loop through a folder of JPEGs or PNGs. Images should be neatly scaled or cropped to fill the circular 360 × 360 area. 4. Rotation Support: Include a simple logic to rotate images 90/180/270 degrees based on a filename suffix (e.g., ). Deliverables • Portable Source Code: A complete Arduino IDE project folder (.ino plus all necessary local .h and .cpp drivers). The project must be "self-contained" (all hardware drivers in the local folder) so it compiles on a clean install without path errors. • Flashable Binary: A compiled .bin file that I can flash directly to the board using or a web-flasher for immediate verification. • README: A brief guide on f...

TITLE: Hardware Prototyping Engineer (Contract, 2 months) DESCRIPTION: We're building a working prototype of an interactive educational device for an investor demo. Need someone who can take a defined spec and deliver a polished, reliable prototype in 8 weeks. WHAT YOU'LL WORK ON: - Embedded firmware (ESP32 / Arduino family) - Sensor integration on custom PCBs - 3D-printed enclosures with clean finish (not mandatory) - display + audio output REQUIREMENTS: - 3+ years of embedded prototyping experience (including academic or personal projects). Fresh graduates may apply if they demonstrate strong hands-on skills. - Portfolio of shipped demo hardware (not just code) - Experience with hand-soldering SMD, KiCad/EasyEDA - Available to work 4–5 days/...

As discussed

I’m putting together a beginner-friendly tech project that blends hands-on robotics with a small web presentation, and I’d like expert guidance from start to finish. Robot goals • Four-wheel, Arduino-based rover that drives forward and uses ultrasonic sensors to detect and dodge obstacles. • Component list that balances quality with affordability so I can stay within my target spend. • Clear, step-by-step wiring guide complete with labelled diagrams—nothing skipped or assumed. • Fully explained Arduino sketch: a step-by-step guide with runnable code examples so I understand what every line does and can tweak it later. Web presentation Once the robot is running, I need a small HTML/CSS site to document the build. The style shou...

The project is already done. It is multifactor voiceprint, password and finger print security system and stuff. I just have questions regarding it. You need to speak Arabic cuz some files are in Arabic

...add-on. The job covers: • Building the DGUS project with clear pages/areas for the two numeric readings and one text field. • Selecting appropriate fonts, colours and touch areas (if useful) so the data is readable at a glance. • Providing the compiled .HMI / .BIN files plus the editable project, ready to load through the DWIN toolchain. • Supplying a small example sketch for the ESP32 (Arduino or ESP-IDF) that pushes sample data to the display, demonstrating the exact packet format you expect. Acceptance criteria 1. After flashing, the display shows the three fields updating smoothly from the ESP32 demo code. 2. No flicker or ghosting; values refresh at least once per second without freezing other elements. 3. All project files and a brief...

...هو: 1. كود كامل لـ ESP32 (‎C/C++‎ أو ‎Arduino Framework‎) يتعامل مع الاتصال Bluetooth، تخزين المبلغ، المقارنة، وتفعيل التنبيه الصوتي والـ LED والـ Vibration. 2. نموذج أبسط لتطبيق موبايل يُظهر تحويل الصوت إلى رقم وإرساله، مع توثيق يسهّل نقله لاحقًا إلى تطبيق إنتاجي أكبر. 3. تجميع المكونات المقترحة (ESP32، بطارية Li-Po، Buzzer، محرك اهتزاز، LED أحمر وأزرق/أخضر، زر صغير) في لوحة اختبار أو حاوية أولية مع شرح طريقة التوصيل. 4. ڤيديو قصير أو عرض حي يبيّن التشغيل الفعلي أمام لجنة أو مستثمر، ويؤكد أن التنبيه الصوتي يعمل فور تجاوز الحدّ. سأعتبر العمل مقبولًا عندما: • أستطيع تغيير الحدّ الصوتي في التطبيق، • أرى الاستجابة الصوتية الفورية عند تجاوز المبلغ، • وأحصل على تعليمات كافية تمكنني من إعادة إنتاج التجربة خطوة بخطوة. إذا كنت مرتاحًا للعمل مع BLE، Ar...

...microcontroller must enrol and match prints locally in real time, then immediately publish the results to a cloud back-end for long-term storage and analytics. No on-device history needs to persist once the upload is confirmed, so the code should free local buffers promptly to keep RAM usage low. Core requirements • Real-time capture, template creation and matching on the ESP32 (FreeRTOS / ESP-IDF or Arduino-ESP32—whichever you’re fastest with). • Secure HTTPS or MQTT push to the cloud of my choice (AWS IoT Core is preferred, but your proven alternative is welcome). • Robust reconnection logic to avoid data loss during network drops. • Over-the-air update hooks so future firmware revisions can be flashed remotely. • Clean, well-docu...

...prototype. The idea is simple: a small, battery-powered unit floats on the water, watches for an unusual splash or tilt, and fires a loud buzzer if something—or someone—hits the pool unexpectedly. Hardware on hand • Arduino-compatible board • 3-axis tilt/accelerometer sensor • Piezo buzzer (primary alarm) • Optional LED and on-board Li-ion pack (solar top-up later) What I’d like you to do 1. Draw up a clean wiring diagram that links the sensor, buzzer and microcontroller so I can reproduce it on a breadboard first, then on perf-board. 2. Write the Arduino sketch that: – Reads the accelerometer, applies filtering, and compares movement against an adjustable threshold (potentiometer or software value). &...

I have an existing Arduino-based Wi-Fi prototype that already runs stable C++ firmware. I now need the same functionality condensed into a custom PCB no larger than 70 mm × 50 mm, with hard-wired Ethernet via an RJ45 connector, onboard 12 V power input that can be sensed from 0 V–15 V, and an integrated temperature sensor. You will take the current code that i supply, select the most size-efficient microcontroller (ATmega32U4, ESP32-Ethernet, STM32, or similar—open to your advice), and lay out a production-ready board. The board must expose a standard USB or UART header so I can upload updated C++ sketches without special tooling. Deliverables • Editable schematic and PCB layout files • Gerbers, drill files, and BOM with manufacturer part numbers ...

Hardware Development - Microcontrollers Integration with Software Iot AI ML

...Key Deliverables (MANDATORY) 1. Working Prototype (Critical Deliverable) Fully functional hardware prototype (breadboard or PCB acceptable) Must demonstrate: Stable sine wave output USB-controlled offset behavior Configurable amplitude Live demonstration over video call is mandatory Must show: Real waveform on oscilloscope Response to PC commands in real-time 2. Firmware Complete source code (Arduino IDE compatible preferred) Includes: USB communication protocol SPI control for DDS and DAC Real-time offset update handling Code must be clean, documented, and reusable 3. PC Interface (Basic UI) Simple PC-side interface (any language: Python / C# / etc.) Must allow: Setting amplitude Real-time offset control No need for complex UI, functionality is priority. 4. Design Files Complete...

...microphone recording on nearby phones. This is a privacy/anti-eavesdropping demo unit. The circuit design, schematic, netlist, and firmware are ready — I need PCB layout, fabrication, and assembly. What I Have (Will Be Provided) Complete circuit schematic (PDF, A3) Netlist with all connections and component references Bill of Materials with exact part numbers and footprints Firmware source code (Arduino .ino for ESP32-C3 Super Mini) Reference design from open-source project (mcore1976/antispy-jammer on GitHub) Circuit Summary Signal chain: ESP32-C3 Super Mini → AD9833 DDS Signal Generator (SPI) → TC4420 MOSFET Gate Driver → IRFB4115 N-Channel MOSFET → Resonant LC Tank (3.3mH coils) → 2× 25kHz Piezoelectric Ultrasonic Transducers Power: Externa...

...weight monitoring system for a single shelf. The system will measure and track weight changes in real-time using a load cell sensor and transmit the data to a web-based interface. Hardware Requirements: ESP32 microcontroller (Wi-Fi enabled) HX711 load cell amplifier Load cell (weight sensor) Stable and accurate measurement (handle noise and drift) Software Requirements: ESP32 firmware (C/C++ / Arduino framework) Real-time data acquisition from HX711 Wi-Fi communication (HTTP or MQTT) Data transmission to a web server Web Interface: Simple dashboard (web-based) Display current weight in real-time Show changes (add/remove items) Optional: alerts when weight changes beyond threshold Key Challenges: Noise filtering and stable readings Calibration of load cell Handling drift ...

I’m building FoodEase, an automatic cooking appliance that runs on a dual-core ESP32. The project is already architected around native ESP-IDF and FreeRTOS, so I need someone who can jump straight into low-level work—no Arduino abstractions—while still writing clean, production-ready code. Here’s what the firmware must do today: handle precise motor control and thermal regulation, collect and analyse data from temperature sensors, and maintain rock-solid Wi-Fi/BLE connectivity with a fully recoverable OTA update path. All of this has to coexist smoothly under FreeRTOS, so tight task scheduling, queues, semaphores and event groups are second nature to you. You’ll be driving PWM channels for the motor, talking to temperature probes over I²C, and ...

I want to develop a LabVIEW VI that integrates and synchronizes data from two sources: an Arduino-controlled actuator and a DAQ-based voltage measurement system. The Arduino is responsible for controlling the motion of a stepper motor and continuously outputs position data over serial communication. Specifically, it transmits time and position in a comma-separated format as “time_ms, position_mm” at approximately 50 millisecond intervals. This output has already been verified to function correctly using the Arduino Serial Plotter which I wrote the code for. Also, a DAQ system within LabVIEW is used to measure the analog voltage output from a load cell. This voltage represents the sensor signal and does not need to be converted to force at this stage. The D...

I’ve thought of 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: &...

We are looking for somebody that can help program a raspberry pi for charging solutions for electronic scooters. This project needs to allow 2 to 3 user accounts to control the kiosk and upload ads to the station. Im a solo running business and I dont have a lot of funds for this project so I am looking for a freelancer that can help for a good price. Not cheap, but affordable I want to make sure you will be compensated for the good work youll provide. Some more info about the project: We need the station to accept tap payments through Square card reader and they will accept card and phone payments. We need help designing the UI so it’s smooth and have a sleek design. Station needs a good transaction system where a person chooses on the interface how much time they want to c...

ESP32 and Arduino will drive every part of this project, turning ordinary lights and appliances into WiFi-enabled devices that I can switch on or off, schedule, and monitor from a custom mobile application. The core involves designing smart switches, integrating common sensors, and pushing data to the cloud through MQTT and Firebase so I get real-time status updates wherever I am. I expect clean, well-commented C++ firmware, a neat PCB layout that is ready for fabrication, and a companion app built with Blynk IoT or a comparable framework. Android and iOS support are both welcome; feel free to recommend the most efficient route. Because I plan to scale beyond a prototype, component selection, power-safe routing, and OTA update capability are important. Clear circuit diagrams a...

I need two snap-fit, top / bottom cases modelled for FDM printing, each tailored to the exact connector layout and mounting points of my boards. The design needs to be rugged enough to work on robot that will be on a construction site, and should be relatively water/spray resistant (i.e. no obvious holes). Board #1 – Arduino Mega with shield • Front panel: 2 × DB-25, USB, barrel jack, power LED window • Sides: 2 × 3-pin JST (serial) and 2 × 5-pin female jumper headers • Internal: 4 mounting posts that must line up with M3 screws Board #2 – H-bridge power controller • Front panel: 1 × DB-25 • Top: 10 status LEDs in a single line • Ends: 3 × Molex Micro-Fit, 3 × 4-pin JST, 1 &tim...

I’ve thought of 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: &...

...push notifications are required; I only need a clear success/failure confirmation along with the amount and transaction ID. I already have the hardware (ESP32-WROOM, 2.4-inch TFT, and internet connectivity via Wi-Fi). What I’m missing is the firmware plus the exact API integration steps, including any necessary checksum or signature verification PhonePe might demand. If you prefer working in the Arduino framework, that’s perfect, but ESP-IDF is fine too. Deliverables: • Fully commented ESP32 source code that performs QR-based PhonePe UPI verification and returns a boolean success status, amount, and transaction reference ID. • Setup guide covering PhonePe merchant account registration, API credentials, and webhook configuration so I can reproduce the pro...