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    2,000 arduino weather lora trabajados encontrados, precios en USD

    Project Description: Voice Over, short airplane captain message I am looking for a professional voice over artist who can provide a short airplane captain message in American English. The message should be less than 30 seconds in leng...provided script and guidelines accurately - Quick turnaround time - Attention to detail and ability to meet deadlines If you have the required skills and experience, please provide samples of your previous work and your rate for this project. The message: "Hello passengers, This is your captain speaking, I'd like to welcome everyone on Nordonia Flight twenty twenty three to Medina Ohio. The weather in Medina is clear and sunny and we are expecting to land ahead of schedule, until then sit back, relax and I hope you enjoyed your time in ...

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    Arduino Programming Finalizado left

    I'm looking for an Arduino programmer that can write a program for one board to detect Internet connectivity and communicate via Ethernet. Specifically, the program should be able to trigger a relay when internet loss is detected.

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    Hello! I'm looking for someone to help me with a minor update on my Joomla site. This is what I need: 1. Upgrade Joomla version from 3.9.26 to 4.40 or higher. (I get some er...need: 1. Upgrade Joomla version from 3.9.26 to 4.40 or higher. (I get some error messages when trying..) 2. Add functionality (=install module) for authorized users to easy upload files and create links without using /administrator interface. Move existing files into the same structure <100 files. It must be impossible to open uploaded files without log in (by using url). 3. Add widget for weather forecast on start page (iframe - widget code from external supplier). Change or upgrade theme if needed. Must be kept responsive. Freelancer must be capable of working quite independently and test and ...

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    I am looking for a freelancer with advanced experience in Lora technology to provide training. The focus of the training will be on specific areas of Lora technology. The preferred mode of learning is visual, with a preference for images, diagrams, and videos. We are in search of a skilled freelancer who can provide training in LoRa with Stable Diffusion. It is essential that the training supports high-resolution images at 1024x1024 pixels. We are also interested in knowing if you offer both sdxl and sd.5 models for the training. The primary goal for this project is to develop an inpainting model. If you have experience and expertise in this area, we would like to discuss the project's details and potentially collaborate. Please provide your relevant experienc...

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    Solar PV String Sizing Finalizado left

    Solar PV String Sizing Project Overview: I am looking for an experienced professional to assist me in sizi...Detailed analysis of the power consumption requirements and load profile - Recommendation for the optimal number and type of solar panels and inverters - Design proposal for the battery storage system - Calculation of the required string size and configuration for the solar PV system - Consideration of any additional factors specific to the rural environment, such as dust, shading, and extreme weather conditions Timeline: The project should be completed within [insert timeline] and will involve regular communication and collaboration to ensure accurate sizing and design. If you have the necessary expertise and experience to handle this project, please submit your proposal,...

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    Programing in esp32 Finalizado left

    I am looking for a talented IOT programmer to help me with a project using the ESP32. I would like the programming to be done in Arduino, and I have already determined the use of the ESP32 to be data collection and processing. I have a specific project idea in mind, which requires a programmer skilled in C++; or Arduino. I need someone who can take my project idea and turn it into a reality. The expected outcome must be robust and reliable, as this is a critical part of an existing larger project. I am looking for thorough documentation to accompany the work. Timeframe is a priority, as any delay could potentially affect the progress of the project. In addition to the programming, I need help setting up the ESP32 and running the programs that will be developed. This inclu...

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    PCB DESIGN Finalizado left

    ...ease of assembly and maintenance. The resulting PCB design will provide a robust and streamlined solution for automated fluid control, leveraging the capabilities of the ESP32 and various associated components to achieve precise and reliable fluid management. design pcb and suggestion required .it will work with connection with wifi with smart phone on internet protocol http below is the arduino code for project...

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    Cad design of light Finalizado left

    I'm looking to hire someone to design an outdoor ceiling light fixture for me. I have a specific style in mind - modern - and am looking for someone who can carefully craft a beautiful and stylish design that's suitable for an outdoor environment. The light should be able to withstand harsh outdoor weather conditions while providing a stunning appearance at the same time. Experience with CAD design and appropriate software and tools are essential for this project. Please provide examples of your previous work with outdoor lighting solutions for review. Thanks for taking the time to look over my project and I look forward to seeing your work.

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    ...antenna types Version: Antennas for Industrial IoT applications: A composite of various antenna types Version: Antennas for Bluetooth [these will typically be relatively small antennas] Version: Antennas for BLE (Bluetooth Low Energy) [these will typically be relatively small antennas] Version: Antennas for Bluetooth and BLE [these will typically be relatively small antennas] Version: Antennas for LoRa and LoRaWAN [sizes vary] Version: Antennas for Vehicle-mount IoT applications Version: Antennas for Wi-Fi IoT: [these will typically be relatively small antennas] Version: Antennas for LTE IoT Version: Antennas for LTE-m IoT Version: Antennas for NB-IoT Version: Antennas for ZigBee Version: Antennas for Thread Version: Antennas for Low Power Wide Area Network (LPWAN) If a...

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    ...design. After pressing the switch it will turn a small motor that moves a metal pole until it triggers an upper limit switch and stops motor, the switch is then released. After pressing switch again the motor turns in opposite direction and moves pole down until it triggers a lower limit switch and stops motor, the switch is then released. I am looking for this to be done without the use of arduino and as small components as possible. Skills and Experience: - Experience in circuit design and electronics engineering. - Proficiency in choosing the appropriate components for the circuit. - Knowledge of different types of switches and their functionality. - Ability to design a circuit that can handle a small DC motor as the load. - Attention to detail and the ability to ensure th...

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    Project Description: Arduino or ESP32 Modbus control of Growatt inverters I'm in search of a freelance developer capable of creating software to manage Growatt inverters through an Arduino or ESP32 platform. We possess the comprehensive MODBUS documentation from Growatt and aim to design a straightforward web interface, directly hosted on the Arduino or ESP32. This will connect to a government-supplied API that updates electricity prices on an hourly basis. The objective is for the inverter to initiate battery charging when electricity prices are low, thereby optimizing household electricity costs by charging the battery storage system at the most economical rates. Requirements: - The project is for an existing business, so experience in working with industrial...

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    Searching Arduino ESP32 Developer to control one ESP32 with a stepper motor connected to it using another ESP32 running an LVGL-based graphical user interface (GUI) over WiFi

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    I need a project completed that involves designing an Arduino-based data logger for input and output voltage, current, and temperature. This data logger is intended to be used for research and development, so accuracy is important - I need a high-precision data logger. I also require an interval-based system for data collection, rather than something continuous or on-demand. I'm hoping to find a reliable freelancer who can help me design and build this data logging system quickly and accurately.

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    Game Developer Finalizado left

    ...collecting items. 2. Art and Animation: • Design and create 3D models and textures for characters, objects, and environments. • Develop animations for player movement, character interactions, and environmental events. 3. Sound Design and Music: • Compose and produce the musical score, including the fragments of the divine hymn. • Create ambient sounds for the jungle environment, animal calls, and weather effects. 4. UI/UX Design: • Design and implement user interface elements, including menus, inventory display, and progress trackers. • Ensure a seamless user experience that is intuitive and engaging. 5. Level Design: • Create detailed level layouts, including the village, forest, sacred groves, and central shrine areas. • Place treasures, ...

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    ...spec for an electro mechanical product that will be used for consumer purposes. this spec, needs to be developed so that a designer or design company can take the detailed specification and develop the product from it. Regarding overall design, I have quite precise specifications in mind for the product, and may be open to flexibility depending on the situation. The basic design concept is an arduino processor at its core controlling a stepper motor. the software and hardware requirements have already been developed, basically we're talking about taking these already developed requirements and putting them in a document specification that is formatted appropriately and specific enough for a designer to have enough information to use it to design the product. If you have exp...

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    Hi, I want to have my printed circuit board (PCB) validated and also integrate the components of the NRF24L01 module directly onto my PCB. For the NRF24L01, I intend to use a crystal instead of a quartz. I am working on EasyEDA, and I want my entir...integrate the components of the NRF24L01 module directly onto my PCB. For the NRF24L01, I intend to use a crystal instead of a quartz. I am working on EasyEDA, and I want my entire PCB to be manufactured by JLCPCB, which means that all the components need to be available on LCSC. Additionally, I would like to add a 6-pin JST connector to be able to program my ATtiny84 microcontroller with an Arduino Uno. This approach will facilitate a more efficient and functional integration of all the elements in my project. tactile switch dome f...

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    arduino szakember Finalizado left

    Van egy arduino alapú pedálom szimulátorhoz. A fejlesztője már messze jár... A Steames Eurotruck Simulator 2 kifagy tőle, de működik nem Steames Scania alatt. Fizetős és sürgős megoldást keresek Budapesten.

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    I am looking for someone to help me with an IoT project to apply biotechnology in the medical/healthcare field. In particular, I need someone who is experienced in Arduino development to help me come up with a system that will extend my current capabilities and integrate with other systems. The project requires remote monitoring and control, and data collection and analysis. The desired platform is Arduino but with the possibility of working with another specific platform, too. I am open to suggestions for additional features that can be included, but the key deliverables are the integration of various systems I wish to extend and support remote monitoring and control.

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    I require a developer to finish work on a project to b...developer to finish work on a project to bring external public API data into a display. The initial work is started: Action To complete and extend a data source list to display data on an internal dashboard Current state Connection to the School Calendar (COMPLETE) Connection to the School Learning Mangement System for News (COMPLETE) API connection to QLD Weather Stations (COMPLETE – requires additional work) API Connection to NSW Weather Stations (INCOMPLETE) Current Technologies Server-side – NodeJS using nodemon for local development; Axios, cal-parser, Client-side – Angular v.16; Rxjs, echarts (); CSS – Bootstrap v.5.2.3 Full details, see attached

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    I am looking for an experienced electronics engineer to join my project team. I am working on developing a new product and need the assistance of an engineer who is adept with WiFi, HDMI and DSP. This project has a des...after its completion. Ideally, the person I'm looking for will have extensive experience in these areas and can come up with creative solutions to any unexpected challenges. If you believe that you would be suitable for this position, please do not hesitate to apply. Thank you for your interest in my project! The first phase is about 30 to 90 days to do the design and create prototypes. Perhaps arduino or other type of mini comuter platform will work for the proto types. Phase 2 will be for converting to a PCB based solution and will be ongoing all the way thro...

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    ...values. One button to increase or decrease values. Set Point & Alarm: Users should be able to set a pressure difference value (e.g., 2 kg). If the measured differential exceeds this set point, an alarm should be triggered. The exceeded filter's pressure differential should also be highlighted on the display. Microcontroller: The design can either integrate a standalone microcontroller or utilize an Arduino Nano. Box: Design an enclosure for the above PCB and Display. Requirements: 1. PCB design that is suitable for printing and cutting from JLC (a Chinese PCB manufacturer). 2. Component listing which can be sourced from India. 3. Firmware/software code to handle sensor readings, display output, and alarm conditions. 4. Documentation of the entire project including schem...

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    i am in search of an experienced and skilled freelancer to assist with the development of a custom Arduino shield PCB. The purpose of this project is to create a tailored PCB that can seamlessly integrate with an Arduino board and serve specific functions involving switches and rotary encoders.

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    I am looking for a Python developer with intermediate experience in BACnet IP to assist with integrating data from a Weather API. The ideal candidate should be proficient in Python and have a good understanding of BACnet IP. The project has a timeline of 1 to 2 weeks. Requirements: - Proficient in Python - Intermediate experience with BACnet IP - Familiarity with Weather API integration - Ability to work within a 1 to 2 week timeline Detail Description: We are looking for a skilled Python developer to join our team and help us tackle an exciting project. The primary tasks will involve reading and writing data from API endpoints, as well as handling BACnet IP data. Key Responsibilities: Retrieve data from various API sources and integrate it into our system. Write Python ...

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    I have an esp32 Development board with an mpu6050, micro sd card via I2c, an OLED via spi that is 128x64. I need you to develop an Arduino sketch for this project. I have already created the base code for the example. Everything is documented and attached below. Please read the documents attached below.

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    Air quality monitor Finalizado left

    I am looking for a freelancer to develop an air...suitable resistors, etc. PCB board design and simulation testing Non- Necessaries functions. If possible, I hope to be able to connect to the Internet and display the weather, time, and date. It would also be nice to be able to play music? but if the budget is too high, I will give up those functions cos it is DIY for home use.. The sensors I picked are linked below Have a nice day

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    I am looking for a skilled freelancer to design an Arduino based IR pulse recorder with playback ability. The purpose of this project is to record and analyze IR pulses. Preferred Skills and Experience: - Proficiency in Arduino programming using Arduino IDE - Experience with IR pulse analysis - Knowledge of circuit design and implementation - Familiarity with IR pulse frequency ranges and analysis Requirements: - The Arduino based IR pulse recorder should be able to accurately record and analyze IR pulses within the desired frequency range of 50hz to 5000hz, with the ability to playback pulse patterns recorded/stored. - IR wavelength is 904nm (photodiode SFH203FA is required) - Project should be able to record the pulses detected to an SD card and ...

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    I am looking for a skilled Arduino ESP32 developer to create a code for a stock ticker display on a LED matrix. The LED matrix is 64x32 in size. Requirements: - The code should display stock information similar to a Wall Street stock ticker, with scrolling text showing the name, price, and variation of the stocks. - As I am not sure about the specific requirements for the stock ticker display, I am open to suggestions from the developer. - The source of stock data should be from Yahoo Finance or Bloomberg (my focus are stocks from the Brazilian market) Ideal Skills and Experience: - Proficiency in Arduino ESP32 programming. - Experience in working with LED matrices and creating scrolling text animations. - Familiarity with retrieving stock data from Yahoo Finance API or ot...

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    three web page number 1 = login page number 2 = server page number 3 = client page login page details for html : 2 buttons on top for selection server, client login id button + box to enter the login value. password button + box to enter the password value. submit button login page php/java/node.js details: submit button will verify entered login values and password value; redirect it to server page if selected server or else to client page if selected client. verify details from data base sql details from login side: write sql query for making table in sql and alloting the server values/client values. server page details for html : host button which will have box to enter " Your ESP32's hostname" can be variable. serverPort button and box to enter the value . liq...

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    Xamarin-Arduino ESP32CAM Home Automation Project Purpose: - The purpose of this project is to create a home automation system using Xamarin, Arduino, and ESP32CAM. - The focus will be on controlling various IoT devices within a home environment. Experience Level: - This project is suitable for beginners who have basic knowledge of Xamarin and Arduino. Requirements: - Develop a Xamarin application that can communicate with an Arduino ESP32CAM board. - Implement functionalities for controlling and monitoring various home automation devices. - Integrate the ESP32CAM board to capture and stream video footage for surveillance purposes. - Ensure seamless communication between the Xamarin app and the Arduino board. - Create a user-friendly interface for easy ...

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    UI UX DESIGNER Finalizado left

    Hi we are looking for a Designer for our Touch Screen Interface with Arduino Mega 2560 and GUI design Responsibilities: Gather and evaluate user requirements in collaboration with product managers and engineers. Illustrate design ideas using storyboards, process flows and sitemaps. Design graphic user interface elements, like menus, tabs and widgets. Build page navigation buttons and search fields Create original graphic designs (e.g. images, sketches and tables). Prepare and present rough drafts to internal teams and key stakeholders. Identify and troubleshoot UX problems (e.g. responsiveness) Conduct layout adjustments based on user feedback. Adhere to style standards on fonts, colors and images. Requirements and skills: Proven work experience as a UI/UX Designer ...

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    computer vision Finalizado left

    ...reliable vehicle tracking with automatic incident detection for highway and expressway the system helps provide safety on the highway and generate e-challans for violator on the road to make our safer and ensure a smooth traffic flow VIDS can detect up to 9 events 1 stopped vehicle 2 Vehicle coming from the opposite direction 3 Pedestrian crossing 4 Overspeeding and underspeeding 5 Crowd gathering 6 Weather status like smoke and fog 7 Acceleration/Deaccelertion 8 Traffic status like congestion, dense, delay 9 No helmets and triple riding Role: Design & Development, Product Management, Testing/FieldTrail, TraingSupport Technology/Tolls: Python,Opencv, Transferlarning Darknet YOLO Deployment Hardware: Nvidia RTX A2000 (Server-based) (4) (Truck IN WRONG LANE DETECTION)- Provi...

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    Hi Md Rabiul I., I noticed your profile and would like to offer you my project. We can discuss any details over chat.

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    I am looking for an expert freelancer who can develop an Arduino and PHP code for a tank level indicator on my website. Purpose: - The main purpose of this tank level indicator is to monitor water levels on a website. I have an ultrasonic sensor, arduino nano and esp8266 that i will need schematic for. I need those to communicate with a webpage to let me know the tank level. I need the arduino code for the arduino IDE and the code for website etc. I also need the webpage to show a tank with water level in it. I know a little php so I would rather you use php so that I can edit it if need be. I need this done asap, do not even reply or bid if you cannot get started right away. Also give real time as far as how long to get done, or it will not be looked at. Re...

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    I am in need of an experienced freelancer to work on a project using the Adafruit Feather 32u4 RFM95 LoRa Radio- 868 or 915 MHz With the Adafruit Ultimate GPS featherwing. Unfortunately, I do not have experience with either of them myself, and I am needing help with parsing the GPS data. The test for the raw GPS data works, I just need the data parsed into lat and longitude in order to be able to send that data to another device. If you possess the necessary expertise and have worked with these components before, please consider submitting a bid for this project. I am hopeful to connect with an experienced freelancer who can assist me in completing the parsing of the GPS data. Thank you!

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    I am seeking a proficient developer experienced in both the ESP-IDF framework and Arduino IDE. The core challenge is the conversion of an ESP-IDF library for the TLC5973 LED driver to make it seamlessly compatible with the Arduino IDE and Arduino boards. I'm currently facing issues with LED flickering when attempting to dim multiple colors simultaneously using the TLC5973 LED driver and a WT32-ETH01 microcontroller. My objective is to have smooth LED operations without any flickering, even when WiFi and Bluetooth functionalities are activated on the microcontroller. Libraries in Reference: miandehe/Arduino-TLC5973: An Arduino library tailored for the TLC5973: caffeine93/esp32-tlc59731-driver: A library made for ESP, employing the RMT fun...

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    Project Title: Serial Communication between ESP8266 and Arduino with Real-Time Data Transmission and Control Description: - I am looking for a freelancer who can help me establish a wireless serial connection between an ESP8266 and an Arduino. - The purpose of the data being sent and received is to control Arduino operations in real-time. - The ideal candidate should have experience in both ESP8266 and C# programming. - The operations performed on the Arduino will involve input/output and sensor interactions. - The desired frequency of data transmission and reception is real-time. - The freelancer should be able to ensure simultaneous sending and receiving of data between the ESP8266 and the Arduino. - Prior experience with wireless communication protoco...

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    I am looking for an experienced engineer to develop and design a UPI QR code based water filling machine. The project will involve utilizing IoT technology alongside circuit board design and development, in addition to transferring data to a microcontroller. Arduino has been chosen as the preferred platform for this project. Furthermore, I have specific requirements for the project that the chosen engineer must be able to complete. This is an exciting opportunity to work on a cutting-edge project, and I look forward to hearing from experienced candidates who will be able to contribute to the success of the project.

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    I am looking for an experienced Android developer to build a mobile app that will work with a LoRa generating Node.js backend. The project has stringent timelines, and the app needs to be published on the Play Store as soon as possible. Specific Features: - Integration with LoRa generating Node.js backend Design Guidelines: - I have a general idea for the application's interface, but I am open to suggestions from the developer. Timeline: - The app needs to be published on the Play Store ASAP. Ideal Skills and Experience: - Strong proficiency in Android app development - Experience working with Node.js and backend integration - Familiarity with LoRa technology - Ability to meet strict timelines and deliver high-quality work - Creative thinking and ability to pr...

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    Web Designer Finalizado left

    ...special events, club night, etc. - Trips: Interstate and international dive trips. - Services: Equipment hire, equipment servicing, air-fills, etc. A single-page list of items and prices. - Gallery: Photos and videos - Blog - FAQ - About Us - Contact Us - User Profile: Personal details, update password, etc. - External links: Links to related websites, such as PADI, Divers Alert Network, local weather, etc. Exclusions – things on the existing site that are not needed: - Dive Shop (equipment sales) - Twitter and Facebook integrations - Gift certificates - Developed in Notepad during the 90’s vibe You don’t necessarily need to design the layout of every page. A generic pattern that can be applied to most pages is fine. This can be negotiated. I will provide a l...

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    Project Title: Human Behavior Recognition Overview: I am looking for a skilled developer who can create a system for accurately recognizing human behavior in outdoor environments. The system should be able to detect various human actions in roads with a high level of...Machine Learning: - Experience in training and deploying machine learning models for behavior recognition. - Familiarity with popular deep learning frameworks, such as TensorFlow or PyTorch. 3. Outdoor Environment Expertise: - Understanding of the challenges and considerations involved in behavior recognition in outdoor environments. - Experience in handling various lighting conditions, weather conditions, and varying distances of human subjects. The dataset needs to use.

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    Embedded System Finalizado left

    Embedded System I'm looking for an embedded engineer to develop a project for me utilising the ESP32C3 and MAX30102 modules. Specific functionalities I'm looking for include the ability to measure SPO2, heart-rate and other additional features like Sync Time with BLE and Update the SPO2 Log Data file via BLE to a mobile app or downloadable via USB. The coding language of choice for this project is Arduino IDE C++, and I also have specific hardware requirements that the Main Board is XIAO ESP32C3 that need to be met. This project will ultimately require the engineer to have experience in embedded engineering, firmware development, and interfacing with optic electronic sensors. I'm looking for someone who is eager to develop a project from the ground up, driving us all...

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    Application Finalizado left

    ONLY APPLY IF YOU CAN DO THE PROJECT Project Description: I am looking for a skilled Android/ios developer to create a productivity application. The application should be developed specifically for the Android/ios platform. The primary function of the application is to integrate it google maps and add more features like weather forecasting and Travel attractions places to enhance productivity for users. The ideal candidate should have experience in brainstorming and implementing innovative features that can improve productivity. Skills and Experience: - Android development experience - Flutter, API . - Strong understanding of UI/UX design principles, frontend and Backend - The candidate will also need to provide proposal defense, literature review, design , code etc - Ability...

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    As a client, I am looking for an experienced freelancer to create a wearable digital oscilloscope for me using an Arduino board. This device will be required to have a display screen and it must be programmed using the C++ programming language. Size and weight are not of great importance, though I'd prefer the oscilloscope to be reasonably compact. Additionally, I would also like to have a data storage capability and the ability to communicate wirelessly with other devices.

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    Need QR based payment system using Arduino. When a payment is recieved, the amount recieved, sender details to be displayed on LCD. Hardware to be used: Controller: atmrga328 Output: 16X2 LCD Inputs: API used in program

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    IoT Platformu, Lora-LoraWAN Network Server kurulumu ve işletilmesi konusunda tecrübeli, tercihen LORIOT Things network gibi Lora sunucuları kurulumunda tecrübeli.... Yeni oluşturulcak IoT platformu ve arayüzlerin back-end ve front endi için çalışabilecek. MQTT,OPC-UA, OPC DA gibi ortamlara hakim bir arkadaşa ihtiyaç vardır.

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    Writting an Arduino code is for automatic pumping machine And web hosting

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    Experienced Embedded Firmware engineer on nordic nRF52833 Requirements: - Sp...Embedded Firmware engineer on nordic nRF52833 Requirements: - Specific firmware development experience in Bluetooth Low Energy (BLE) and Ultra-Wideband (UWB) - Proficiency in Nordic Semiconductor SDK - Ability to support hardware design Ideal Skills and Experience: - Strong background in BLE and UWB firmware development - Extensive knowledge of wireless communication protocols such as Zigbee and LoRa - Experience in sensor integration - Familiarity with Nordic Semiconductor SDK - Ability to provide hardware design support Note: The project requires a candidate who has expertise in BLE and UWB firmware development, preferably with experience using Nordic Semiconductor SDK. Hardware design support is al...

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    I'm looking for a freelancer to help create a fun reel for my social media. The concept is already in place, and the video is about me dancing in a Halloween costume. If the weather is nice we could shoot it in the park somewhere in Central London or max zone 4. Unless you have a studio. The desired length for the video is under one minute. You would be responsible for shooting the video and doing all the necessary editing. I would like you to add some smoke and make it look spooky. This is my first time doing this and it's fine if you are also a beginner.

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    Electronic PCB Design Finalizado left

    Variable Input, Proportional Output Heater Bank Controller Board Project Overview: The objective is to develop an Arduino-compatible PCB capable of controlling a bank of approximately 20-25 silicone heater mats, each with a power rating of 150 watts. The controller/PCB to be built must manage the power distribution efficiently to minimize operational costs. Key Specifications: - Power Capacity: The controller should have a capacity of up to 4kW to regulate the entire bank of heaters, maintaining equal output for each heater at any given moment. - Control Method: Variable control is the primary requirement, although staged control is acceptable if necessary. The use of a triac or a series of triacs would be suggested, although alternative suggestions are welcome. - Input Interface...

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