Arduino Projects

Arduino project.

Arduino UNO R4 displays the open or closed state of a door. A reed switch in the door detects the state, which needs to be indicated using LEDs. A red LED indicates the door is open, while a green LED indicates the door is closed. The LEDs must be connected through relays. The same reed switch should also turn on the lighting in front of the door. The lighting operates on 230V power. I only need the code and a wiring diagram for connecting the inputs to the Arduino board. Interested individuals are welcome to contact me regarding the project.

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H2Ome project

I’m seeking an enthusiastic and collaborative individual who is a master of Arduino code to assist me in developing and commercialising the invention I’ve been diligently working on for years. Must be happy with signing a non disclosure agreement. Regards, Chris

LED Panel Design. Arduino or other.

We are looking to develop a high luminosity through-hole LED panel comprising of a simple fixed text (8 letters). The panel will be used in an outdoor racing environment. Tests on LED matrix panels have proven unsatisfactory in terms of brightness / visibility in sunlight. In total there will be 267 LEDs split as follows: Letter1: 36 LEDs Letter2: 38 LEDs Letter3: 38 LEDs Letter4: 42 LEDs Letter5: 34 LEDs Letter6: 22 LEDs Letter7: 22 LEDs Letter8: 35 LEDs We are considering using 30000 mcd LEDs but will be guided by the developer: 1) All LEDs should be turned on or off at the same time (there is no scrolling / flashing requirements etc). Simply on or off. 2) The display should automatically turn off after 30 seconds. 3) The design should minimise the amount of manual soldering required. 4) We require recommendations regarding power sources (e.g. 12v 4ah battery etc) Price quoted is negotiable based on experience and speed of execution.

LED Panel Design. Arduino or other.

We are looking to develop a high luminosity through-hole LED panel comprising of a simple fixed text (8 letters). The panel will be used in an outdoor racing environment. Tests on LED matrix panels have proven unsatisfactory in terms of brightness / visibility in sunlight. In total there will be 267 LEDs split into the 8 letters as follows: 1: 36 LEDs 2: 38 LEDs 3: 38 LEDs 4: 42 LEDs 5: 34 LEDs 6: 22 LEDs 7: 22 LEDs 8: 35 LEDs We are considering using 30000 mcd LEDs but will be guided by the developer: 1) All LEDs should be turned on or off at the same time (there is no scrolling / flashing requirements etc). Simply all on or all off. 2) The display should automatically turn off after x seconds with 10 second audible warning before shut off. 3) The design should minimise the amount of manual soldering required (e.g. avoid individual resistors for each LED if possible). 4) We require recommendations regarding power sources (e.g. 12v 6ah battery etc) and LED heat dissipation. Price quoted is negotiable based on experience and speed of execution.

Arduino Vibration Monitoring System for Remote Head Diagnostics

I need an Arduino developer to help me build a wireless vibration monitoring system using HC-12, ADXL345 accelerometers, and an OLED display. The system will be used in the film industry to diagnose whether instability in a camera shot is caused by a remote head misbehaving or issues with the mounting structure (crane, dolly, vehicle, etc.). Project Scope: 1. Two Vibration Sensors (Transmitters) Arduino Nano (or suitable alternative) HC-12 Wireless Module (for at least 50m range) ADXL345 Accelerometer (or another suitable vibration sensor) Battery-powered for portability 2. Handheld Display Unit (Receiver) Arduino Nano or Uno HC-12 Module (to receive data from sensors) OLED Display (to show vibration severity) Data logging to SD card for analysis 3. Software Requirements: Process real-time data from both sensors Compare vibrations on the remote head vs. the structure Identify high-frequency vibrations (bad shake) vs. low-frequency movement (intended motion) Display severity levels on the OLED screen (e.g., Stable, Minor Shake, Severe Vibration) Ideal Candidate: Experience with Arduino programming (C++) Familiarity with HC-12 wireless communication Knowledge of sensor filtering (e.g., moving average, FFT, RMS analysis) Experience with real-time data processing and display If you can help design, program, and guide me through assembling this system, please get in touch with a quote and examples of relevant projects.

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Program Arduino or similar

I need to read 4 x thermistors (10K3A1) and 1 x flow detector (simple switch) in a heating system, and depending on the relationship between the readings, logically control 2 x relays (these will open/shut 230V water valves). I will need to have visibility of the temperature readings and the relay output status, and be able to adjust the temperatures, dead-bands, minimum change-over time etc. I have the sensors and the relays but need advising how to get permanent connections to whichever processor we are going to use, rather than via a breadboard

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Modbus points via arduino or similar

I need a device that will let me read some parameters off an air source heat pump. I have the Modbus register and need to read around 20 points and write to about 5. the communication will be via RS485. I'm hoping that this can be done relatively easily with an arduino or similar, so I can read/write the modbus points within the scene. please quote for specifying the hardware required (I will purchase and build) and writing a program to give me what I need.

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Remote monitor with Arduino or similar

I need equipment specification and programming to remotely monitor 2 x 0-10v signals, and to be able to remotely adjust a simulated 10k pot I'm thinking maybe an Arduino or Pi? it will need to connect to the internet (ideally through a SIM) and we would like to be able to graph the remote signals as well as view in real time. I'm unsure how we would do this, via a cloud service or something? Please provide a proposal and recommendation for the hardware required, programming, and a web platform to view the results on. Web platform should ideally be free or low cost.

opportunityurgent

I need to assemble a widget for an interactive piece of theater

Looking for a London-based hardware maker with experience in ESP32, LED control, haptics, and enclosure prototyping. Bonus if you’re into retro/interactive design. Goal is to prototype a handheld controller with crank, LED buttons, and sensors. I have the project thought out in ChatGPT and most of the pieces sourced. Need someone with experience to assemble this and program it. Happy to go with another design if the GPT thing isn't up to your specs. This is for a hybrid live/metaverse musical and the widget will control the audience's interaction with the piece. We are a disability/accessibility forward production with funding. If you want to be involved in the future of interactive theater and entertainment, please get in touch. Happy to negotiate price. Here's a list of components suggested by GPT (based on my needs): 1. Hardware Components You'll need: Microcontroller (e.g., Arduino, ESP32, Raspberry Pi Pico) Haptic Feedback Motor (e.g., vibration motor or haptic actuator) LEDs (RGB or standard) Buttons (momentary push buttons) Rotary Encoder / Crank Sensor (to detect movement of the crank) Wireless Communication (Bluetooth, Wi-Fi, or RF module) Power Supply (battery-powered or wired)

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Raspberry Pi / Arduino Engineer – Smart Bottle

Description: We are looking for an experienced Raspberry Pi or Arduino expert to help us design and execute a real-time cryptocurrency display integrated into a luxury bottle design. Our team is responsible for the industrial and aesthetic design, but we need a technical expert to bring the electronics to life. The ideal candidate will work closely with us to develop a fully functional prototype and assist with production feasibility. Project Scope: Select and integrate a minimalist OLED or e-ink display into the bottle. Use a Raspberry Pi, ESP32, or Arduino to fetch and display real-time cryptocurrency wallet data. Ensure low power consumption, possibly using a rechargeable battery or wireless charging. Develop the software to connect to APIs (CoinGecko, Binance, Etherscan, etc.) and display wallet balances. Advise on the best PCB design and wiring for a compact setup. Work with us on feasibility for small-scale production. Ideal Candidate: ✅ Experience with Raspberry Pi, Arduino, or ESP32 for IoT and embedded projects. ✅ Strong understanding of small OLED/TFT/e-ink displays and microcontroller programming. ✅ Knowledge of Wi-Fi-enabled real-time data fetching and API integration. ✅ Familiarity with battery-powered, low-energy IoT devices. ✅ Comfortable working alongside designers and industrial engineers. ✅ Ability to troubleshoot and iterate on prototypes. Deliverables: 1️⃣ Working prototype with a functioning screen displaying live crypto values. 2️⃣ Optimized circuit design and component selection. 3️⃣ Guidance on scaling the prototype for production. Budget & Timeline:

Arduino Tutor Needed for Complete Beginner (Using Starter Kit)

I am looking for an experienced Arduino tutor to teach me the basics using the starter kit I already own (pictured in the attachment). I am a complete beginner and need step-by-step guidance to get started. Requirements: Teach me the basics of Arduino, including: Setting up and installing the necessary software. Understanding the components in my starter kit. Writing and uploading my first Arduino sketch. Assist with planning, writing, and reviewing code for simple projects. Help me complete my first project successfully, including troubleshooting and debugging. Provide detailed explanations and answer any questions I may have along the way. Flexible with scheduling for planning and reviewing sessions. Deliverables: A clear and easy-to-follow introduction to Arduino. Code and instructions for at least one beginner-friendly project using the components in my kit. Guidance on software setup and use (e.g., Arduino IDE). Please include your experience with Arduino and teaching complete beginners in your proposal. Looking forward to learning and building my first project with your help!

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Bootloader for Arduino OTA DFU

Hi, I am looking to implement secure Over-the-Air Device Firmware Updates (OTA DFU) capabilities for an Arduino-based Bluetooth Low Energy project utilizing a nRF52840 microcontroller. The current firmware is written for the Adafruit Bluefruit Feather Express board using Arduino and Adafruit libraries. However, the existing OTA DFU approach only supports legacy unsecured connections. I need assistance developing a simple proof-of-concept demonstrating secure OTA DFU via Bluetooth Low Energy between the Feather Express and either the nRF Connect or Adafruit Bluefruit mobile apps. The solution must be compatible with the Arduino IDE to maintain compatibility with our existing codebase. Modifications to the Adafruit library are acceptable as needed to enable this functionality. Solutions relying solely on the Nordic SDK will not meet our needs unless the code can be ported back to an Arduino-compatible format. The deliverable would be a working example Arduino sketch (blinky) demonstrating OTA DFU via secure BLE to validate the approach before integrating it into our application and product firmware (not part of this gig). Please provide your rate for developing this prototype BLE OTA DFU solution within the Arduino/BLE ecosystem to meet these requirements. I look forward to reviewing any bids for this project.

Clap switch using Arduino

The project involves designing and implementing a clap switch using Arduino. The goal is to create a device that can detect claps and trigger an action when a clap is detected. The project requires the use of sensors, microcontrollers, and other electronic components. The freelancer will be responsible for designing the circuit, writing the code, and testing the device. They will also be responsible for providing documentation and support for the project. The freelancer should have experience with Arduino and electronic circuit design, and should be able to work independently and meet deadlines.

Bespoke Controller connection to Unreal Engine via Arduino & UDP

I have developed a custom controller using conductive thread and embroidery to interact with an Unreal Engine environment. The controller uses touch inputs to trigger actions such as WASD movement and rotation. The system consists of: - Arduino Code: ESP32 touch capacitive code written in Arduino IDE, currently functional and stable. - UDP Communication: A custom UDP blueprint in Unreal Engine that extracts a JSON file to read touch data. This integration is working successfully. This project will be traveling to multiple countries, requiring adjustments to account for varying setups such as Wi-Fi configurations, triggers, and noise thresholds. The technicians installing the work are not proficient in coding or Unreal Engine, so the system needs to be refined for ease of use and supported by thorough documentation. Additionally, the UDP blueprint should be made reusable as a drag-and-drop asset for future Unreal Engine projects, with clear instructions for customization (e.g., modifying triggers). Key Goals - Ensure key variables (e.g., noise threshold and Wi-Fi setup) are centralized and easy to modify. Provide clear comments and instructions for technicians to edit these settings. - Optimize for reusability as a drag-and-drop asset for future projects. - Document how to modify triggers and input settings for custom interactivity. - Include step-by-step setup instructions for both the Arduino and Unreal Engine components. - Highlight specific lines or sections in the code and blueprint that require editing when location has changed. - Provide troubleshooting tips for common issues, such as connectivity problems or sensitivity adjustments. The heavy lifting in terms of coding and testing is already complete. The focus now is on refining the existing system, improving usability, and creating clear, accessible documentation to ensure the work can be seamlessly deployed and customized by technicians worldwide.

Blood Pressure Sensor R&D

I need R&D for non invasive (cuffless) blood pressure sensor. It should be arduino compatible.

Send HTTPS request in Arduino using sim800l

I have a PHP page which accepts an email address and sends an email to the address received. The URL is "https://abcd.com/mail.php?email=emailprovided". When I use a browser with this URL, it sends the email to the email provided. I want to use Arduino UNO to send the email address to the https URL but I get an error when the URL is https despite enabling SSL using AT commands. It however works OK with a http URL. I need a code that will send data to a https URL without an error.

Debugging Arduino Project

I need someone to debug my Arduino code. I have Arduino Uno, SIM800L, Load cell and LCD screen. I was able to read the values from the load cell and now want to add functionality of sending a text message when the weight from the load cell gets to a certain level. When I add the GSM module, I lose my readings from the load cell. I guess it's something to do with opening two serial connections. I need someone to log in remotely and help me solve this issue.

Arduino Bosch pressure and temperature sensor

We have a Bosch combined oil temperature and pressure sensor (part numbers 0261230340 or 0261230482). We need the correct code to make it work with an Arduino. Should be simple enough for an experienced programmer. Any questions please let us know.