Microcontroller circuit design windowscông việc

I am looking for a skilled Android developer to create a ffmpeg demo app that is prove the concept of few advance command that is worked on windows console - ffmpeg Android - ffmpeg -rtsp_transport tcp The ideal candidate should have experience in ffmpeg Android library and expert only

I'm looking for an experienced developer versed in creating add-ins for Outlook 2019. Our project's goal is to design an add-in that effortlessly integrates with our in-house AI platform, developed on Windows OS, to improve the email workflow by providing intelligent features: - Primarily, the add-in will support Email Response Suggestions, offering smart, context-aware auto-replies to facilitate day-to-day correspondences. Ideal Skills: - Proficiency in Microsoft Outlook - Strong knowledge of AI integration - Outstanding problem-solving abilities - Familiarity with Windows OS programming.

I am in search of a proficient developer to create a comprehensive digital signage software solution, compatible with Windows, Linux, and Android Operating Systems. This software should support the following functionalities: - Content scheduling and management - Remote content deployment - Customise/Drag and Drop or Canva-like functions - Easy setup and management of software - A streamlined process The ideal software should support various media types including images and videos. I prefer a candidate with an extensive background in software development, particularly with similar digital signage solutions. An exceptional understanding of user interface design and ability to provide an intuitive, user-friendly system is crucial. Efficiency, accuracy, and attention to...

I'm seeking a versatile and competent developer to craft a Windows-based desktop application tailored towards business management. The primary functionalities of this app would include: - Inventory Tracking: To handle and streamline operations related to stockkeeping, product inflow and outflow, and supply chain management. - Sales Reporting: The app should be capable of tracking sales data, generating comprehensive revenue reports, as well as weekly, monthly, and yearly sales analytics. The perfect candidate for this job would have a strong background in creating business software solutions, proficiency in Windows desktop application development, prior experience in inventory management software, as well as a deep understanding of sales analysis tools.

I have a software conflict issue in my OS (Windows 10 x64). More precisely, an old version of Microsoft Visual C++ (x64) cannot be uninstalled properly, and so the new version (download-able from ) cannot be installed. And because of this Visual Studio doesn't install properly either- I get a warning at the end, and then it can't open some SLN projects. I tried everything, I uninstalled every instance of Visual C++ / CPP, inluding by using the MS uninstaller tool and deleting instances of VIsual C++ in the registry (particularly in the key: HKEY_LOCAL_MACHINESOFTWAREClassesInstallerProducts

We are seeking an experienced electrical engineer to design a multi-output power supply for a portable AC servo drive. The ideal candidate will have expertise in power electronics and PCB design, with a proven track record of creating efficient and compact power solutions. Input Specification: 220Vac. Output Specifications: Two sections are required: Power Ground Circuit: +15V, +5V. Lower Ground(controller) Circuit: +12V, +5V, +3.3V, -12V. The design must be lightweight and compact, suitable for a portable device. We need the design to be highly reliable and efficient, with considerations for safety and durability. Job Responsibilities: 1) Design: Develop a schematic and board layout for a multi-output power supply that meets the specifi...

I am looking for a developer who can develop portable USDT Flashing Software in main network (windows based, preferably windows 10), the requirements are mentioned below, 1) The software can perform flash of the USDT, as well as the flashed USDT should be transferable from/to unlimited wallets with blockchain confirmations is appreciated. since it is flash btc it must be visible in BTC wallet address for 365 days. There will be no transaction fee while sending from "flash s/w" to "btc wallet" as it will be no confirmations. There will be no limitation for daily transfer for usdt It can’t be tracked as fake transaction. should take normal time to send btc one wallet to another wallet in normal internet connection. 2) These usdt will disappear afte...

I'm seeking a skilled UI/UX designer to create a modern, minimalist design for my latest project. The app will be a Windows-based tool and its primary function will be data analysis. Key requirements: - Develop a clean, intuitive and visually appealing interface. - Ensure the design is minimalist in approach, offering streamlined navigation for efficient data analysis. - Prior experience in designing for data analysis or similar applications is highly preferred. If you are a designer with a keen eye for detail and a proven track record in creating UIs for data analysis tools, I'd love to discuss this opportunity with you. Please provide examples of relevant past work in your proposal.

I'm working on an industrial automation project and currently at the prototype development stage. I'm seeking a professional to assist with specific circuit design tasks. Key Responsibilities: - Circuit design focused on industrial automation application Ideal Skills and Experience: - Proven experience in hardware design, particularly for industrial automation - Proficient in circuit design for prototypes - Knowledge of industrial automation standards and requirements This project offers an exciting opportunity to contribute to an innovative industrial automation solution.

...around a Windows 10 and 11 application. This application will essentially intercepting the regular login process and displaying an MFA (multi-factor authentication) screen to the user. Key Details: - The application must support both Windows 10 and Windows 11 operating systems. It should be compatible and seamlessly function across both. - The MFA screen should have OTP functionality, meaning that it generates a one-time password for the user to enter as part of the authentication process. - Communication with our web-based Rest API should be established using API keys. This ensures secure and proper interaction with our backend system. Ideal Skills and Experience: - Proficiency in C# and experience with Windows application development. - Strong understandi...

I'm looking for a skilled Flutter developer to help me set up my development environment on Windows. The goal of this setup is to create an Android application using Flutter. Key requirements include: - Setting up Flutter and Dart SDKs on Windows - Ensuring smooth integration with Android Studio for a seamless development experience - Configuring Android virtual device for testing purposes The ideal candidate should: - Have prior experience with Flutter on a Windows machine - Be proficient in Android app development and deployment - Have strong knowledge of Dart programming language Looking forward to working together on this exciting Android project! I will send You Documentation for the app

I'm looking for a well-experienced C++ programmer who can optimize edge and lines detection algorithms for a parking space detection project. Key Requirements: - Significant expertise in C++, with a main emphasis on advanced algorithms; - Experience with implementing edge and line detection algorithms; - Familiarity with Windows as the developed software should be compatible with this platform. Expected Deliverables: - An enhanced algorithm that can create an edge and lines detection of parking spaces output more effectively. Please ensure to showcase your past experiences on similar assignments in your proposal.

As a project manager requiring embedded software engineering, I need qualified candidates to handle firmware development, device driver programming, as well as embedded systems testing and debugging. The target platform is a microcontroller and the primarily language utilized will be C. Ideal Skills and Experience: - Proficient with C programming language - Extensive experience and understanding of firmware development - Competence in device driver programming - Proven background in embedded systems troubleshooting and debugging - Familiar with microcontroller platform

...attached: - an example of the level of drawings and detailing that is required - our current set of plans, elevations + handmade sections. Once the job is assigned, further details, architectural drawings + structural drawings will be provided to assist. Payments will be processed over 4 milestones with a submission and review at each stage: Milestone 1 – 40% of the package: Details wall, roof, windows, internal scale 1:10 Sections scale1:50 sections Milestone 2 – 65% of the package: window schedule, bathrooms layout, fences, scale 1:50 stair details, screen details 1:20 / 1:10 Milestone 3 – 90% of the package: updated Floor plans, RC...

I need a PCB for controlling the residential electric current (220VAC) using the following componenets: - ESP32 as microcontroller -1 relay 3VD/220AC as an actuator - LoRa module (SX1278) to communicate with others equipments (already developed and manufactured). - RTC module (DS3231) for getting timeStamp. - An AC/DC currrent transofrmer (220VAC/12VDC) is needed to feed the entire circuit from the same electric source we are controling. - 2 voltage regulator: 12/5VDC and 5/3.3VDC I've design several measurements devices using ESP32, LoRa , RTC to create a monitoring net. This is a first control device that will be inluded. So there are a lot of material that this work can lean on.

I am looking for a com...should be proficient in Python DT description language and C#, and have a working knowledge of Markdown. The assistant should be: • Able to instantiate 3d model on physical entities • Capable of conducting thorough web research independently • Experienced in pilot code implementation • Comfortable working within a Windows Operating system Ideally, the successful candidate will have experience in data analysis and machine learning. Experience with the Windows operating system is a must. Understanding of other platforms is a plus. This is a great opportunity for freelancers who have a knack for detailed analysis and have hands-on experience with AI assistants. Please include examples of any relevant projects in your...

...duration. - Activate a solenoid latch: This component is crucial as it performs a critical function in the project. The solenoid latch should be triggered once the motor is on and the music is playing. - Stop the music and motor: Once the solenoid latch has been activated, the MP3 player and motor should stop automatically. Ideal Skills and Experience: - Proficient in Arduino or any other microcontroller programming - Previous experience in working with motors, MP3 modules, and solenoid latches - Familiarity with crash sensor micro switches and their implementation - Strong problem-solving skills to troubleshoot any potential issues - Ability to deliver a clear and well-commented sketch for future reference. If you have the expertise, creativity, and experience to bring t...

...boost sales through marketing and advertising efforts. Your strategy should be focused on generating leads and converting them into actual sales. Target Audience: - Professionals: The strategy should be tailored to engage and appeal to professionals. Understanding their needs and preferences is crucial for the success of this project. -Home Owners: We manufacture construction related products (windows and doors) which we need to get in front of decision makers to be specified into projects. Preferred Channels: - Social Media & Search Engines: While the choice of channels is not limited to these two, I have a preference for social media and search engine advertising. Your proposal should explain how you plan to utilize these channels effectively to generate sales or any oth...

I urgently need an expert, ideally possessing extensive knowledge in CUDA, cuDNN, and Anaconda, to help configure my Windows system. the GPU cuda was working , and wen I tired to use ViT (Vision Transformer) and I installed I got some error and does not work any more Key requirements include: - Setting up CUDA and cuDNN on my Windows system using Anaconda. The specific Anaconda version being used is yet to be determined. - Comprehending the exact statuses of the graphics card installed in my system. - Demonstrating how to utilize the GPU in Jupyter Notebook with Vision Transformer (ViT). The essence of this project is to gain a grasp on how to leverage GPU resources efficiently and then apply those skills into the Vision Transformer. The task requires a high level of ...

I'm looking for a skilled network administrator to help troubleshoot and resolve connectivity issues with my existing VPN setup and firewall. Key Tasks: - Diagnose the root cause of the connection issues affecting the VPN (running on OPNSense/OpenVPN). - Implement the necessary ...Settings Ideal Candidate: - Strong background in network administration, particularly experience with VPN setups and firewall configurations. - Familiarity with OPNSense and OpenVPN. -Understanding Contabo Hosting Platform - Proven track record of resolving connectivity issues. - Excellent troubleshooting skills and attention to detail. The devices that need to connect to the Firewall/VPN are a Windows Server and a Linux Server. It's essential that the connection is secure and reliable for bo...

...farmhouse project. I want the design to reflect a traditional rustic style, while also ensuring that it is suitable for residential living. Key Features: - Stone Fireplace: One of the main focal points of the design should be the stone fireplace. - Large windows. - Exposed Wooden Beams: The exposed wooden beams should be incorporated into the design in a way that complements the rustic theme. They should add character to the space without overwhelming it. Ideal Skills: - Extensive experience in architectural design - Proficiency in creating traditional rustic designs - Strong understanding of space planning and layout - Creative flair and attention to detail This project requires someone who can balance both the traditional and the functional aspe...

I'm looking for an experienced IoT developer who can create an Arduino-based system that triggers actions or alerts based on scraped text data from a website. Key Responsibilities: - Develop a system using Arduino, Raspberry Pi, and ESP32 microcontroller - Implement website scraping functionality to extract specific text content - Design a mechanism to trigger predefined actions or alerts based on the scraped data Ideal Experience: - Proficient in Arduino programming - Familiarity with ESP32 microcontroller and Raspberry Pi - Experience with website scraping techniques - Ability to integrate scraped data to trigger actions or alerts on an IoT system Please note that my preferred programming language wasn't specified. Feel free to suggest the most appropri...

...purpose of this project will be to visualize design ideas. i have included the pdf drawings, image samples, and rendering samples House will have the following... Brick - White Stone - dark gray siding - black Trim and windows - black garage doors - black gable features and porch post - red cedar landscaping items are provided in the pictures uploaded you can use your own pictures but they need to be the same type of tree or bush to be clear the is the house you will be rendering the AutoCAD file can be provided upon request Ideal skills and experience: • Proven record in architectural design • Expertise in photo-realistic rendering technique • Proficiency in industry-leading rendering software • Ability to interpret design concepts ...

...engineer or related professional who can design and assemble a custom made, electrically driven actuator with a control circuit. The specifics of the project include: - The actuator should be capable of providing linear motion. So, an understanding of linear motion systems and mechanisms is crucial. - The actuator must be able to handle a maximum load of 10-50 kg. - The driving mechanism for the actuator should be electrical. Therefore, the freelancer should possess strong knowledge in this field; experience in dealing with similar electric actuator systems would be a significant plus. - The design of a control circuit for managing the actuator's functions is also an integral part of this project. Exceptional skills in circuit theory and ...

I'm in search of an experienced and skilled developer who can create a remote desktop control application for Windows and Mac. Key Features: - File Transfer: The application should allow for seamless transfer of files between the remote system and the controlling device. - Real-time Chat: It should include a chat functionality to enable communication between the remote system and the controlling device. - WiFi Connection: The application should be able to function over a WiFi Connection. The program has to run in both windows and mac systems. The ideal candidate will have: - Proficiency in Windows and Mac application development - Experience in developing remote control applications - Familiarity with features like file transfer, real-time chat, screen transfer -...

i need someone to get my images that i have and make them high quality and light weight. the images are created by the windows snippet tool. the snippets are of screens of a software that i use. i would like someone to get those images and make them sharp and crisp. i purchased some images from shutterstock, and they are high quality and very light weight. i would like to create my images like that. attached are some sample of an image i would to upscale. make an upscale of this image and send it to me, and i will see your work and i will hire you for all my images.

Looking for an experienced 3D designer to help create a small (less than 10cm) prototype box made of plast...for an experienced 3D designer to help create a small (less than 10cm) prototype box made of plastic. This project will require the placement of five holes on the side surfaces of the box, strategically located for circuit adaptations. Requirements: - Knowledge and expertise in 3D design and plastic materials - Ability to accurately place specified holes on side surfaces - Experience in creating designs intended for prototype circuits - Prior experience with similar projects is a plus Your designs will contribute significantly towards the functional prototype of our circuit device. Looking forward to working with someone who can bring their creativity and pr...

I'm looking for some people to do ongoing lead generation while monitoring my ongoing campaigns and helping me with internal account maintenance and tasks. 1. I have a cold ...that involve setting up or updating accounts. 5. Continually work on creating new lead lists for different industries while you are not working on other tasks or responding to cold email inquiries. I will provide detailed written and video training on all tasks that need to be done. Can you work hourly for any of these US EST times? (you must be able to give 100% of your time during these windows, minus any short breaks needed): Monday - Friday 8am - 12pm 12pm - 4pm 4pm - 8pm Are you able/willing to use the Freelancer Desktop App to monitor your work during the time period? What makes you qualifie...

I'm in need of a skilled freelancer to set up and install Primavera P6 EPPM 21.12 locally on Windows. This is a single user setup, with SQL database configuration included. Key Tasks: - Install Primavera P6 EPPM 21.12 on a Windows system - Complete and configure the SQL database for the software Ideal Freelancer: - Experienced with Primavera P6 EPPM installations - Proficient in SQL database setup and configuration - Understands the intricacies of Windows OS - Prompt and clear in communication

...in C#. Currently, our system supports multiple languages but lacks comprehensive support for Arabic. ### Requirements: 1. Strong proficiency in C# and .NET Framework. 2. Experience with processing and analyzing texts in various Unicode encodings. 3. Ability to effectively implement and integrate UTF-8 encoding into the existing system. 4. Previous experience with font systems, particularly in Windows environments. 5. Ability to use diagnostics and debugging tools to identify and resolve issues. ### Objectives: - **System Update**: Enable the system to generate fonts that support Arabic script. - **Bug Fixes**: Address any encoding and display issues with Arabic characters. - **Thorough Testing**: Ensure the system is compatible and efficient in processing Arabic texts. - **Docu...

I'm looking for a creative electronics engineer who can design an innovative toy car. The target age group is 7-10 years old, so the design should be engaging and safe for this age range. Key Requirements: - Design: I'm interested in a remote-controlled toy car, specifically suited for indoor use. The design should be original, appealing to children, and durable enough to withstand frequent play. - Electric Circuit: The design should include a well-crafted electric circuit. - Components: I need assistance in selecting the right components to ensure the design is cost-effective without compromising on quality and safety. Ideal Skills and Experience: - Experience in designing toys, particularly for the specified age group. -...

I require a highly-skilled freelancer to design and develop a Near Field Communication (NFC) reader circuit. The circuit will focus on reading NFC tags (NTAG 215) via a custom-built antenna. Specifics include: - The operating range of the NFC reader antenna should be between 1 to 2cm. - It must be capable of detecting specific tags without unnecessarily scanning nearby ones. - Furthermore, the circuit will be integrated with a specified embedded system, developing compatibility is a must-have. For this project, strong experience in circuit design, NFC technology understanding and embedded systems integration is required. Attention to detail to ensure accurate tag scanning and low power usage is also a critical skill for this task. Potential fr...

I'm in need of an original Scheme language interpreter tailored specifically for Windows. This tool is to be primarily used for educational purposes, hence it should be user-friendly and efficient. A command line interface is sufficient for this tool. Must be written using python. Please include small simple technical report and simple design schematic. Ideal Skills: - Proficiency in Scheme language - Experience in developing Windows applications - Understanding of educational software design

I'm seeking someone to visit a rental apartment in Belfast city center on my behalf. I need them to record a video of the apartment tour and send it to me. 
I need a 1-5 minutes video that captures all areas of the apartment. The key features I'm interested in include:
 - View from windows
 - Dryer and washer availability and condition
 - Type and efficiency of the heating system
 - Hot water functionality - Type of kitchen cooking stove and its condition Video recording must be precise and clear footage.

...application with a modern and sleek user interface for the Windows operating system. The application will be to develop and maintain trading applications. - User authentication: The app should have a secure and user-friendly authentication system that allows users to log in and access the application's features. - File management: The app should provide users with the ability to manage files and folders in an intuitive and efficient manner. - Data visualization: The application should also include interactive and visually appealing data visualization features that enable users to analyze and interpret data effectively. The developer should have strong experience in Java programming and desktop application development, particularly for the Windows operating system....

Hello My company supplies construction materials to the construction crew, but for new construction projects, they have the blueprint files the conditions of the materials, and the requirements for the Products. So i need assistance to understand for read the blueprints and to have knowledge on the Build code. And for any pro...construction materials to the construction crew, but for new construction projects, they have the blueprint files the conditions of the materials, and the requirements for the Products. So i need assistance to understand for read the blueprints and to have knowledge on the Build code. And for any projects, the assistant has to report what kind of Materials they need, size .. The materials i supply is Windows Doors Kitchen Cabinets Sinks i have work for ...

...familiar with VMware, Windows, and Autopsy to help me with a project where I need to encrypt a file to demonstrate encryption techniques. Key Requirements: - Programming for file encryption - Report writing for evidence - Experience with VMware, Windows, and Autopsy The primary goal of the project is to demonstrate encryption techniques. The job entails programming a method for encrypting a file using a language of your choice - I have no preference on the language - and then carefully documenting the process in a written report which will be used as evidence. As the report will be used for evidence, it needs to be detailed and written in a clear and professional manner. Please only apply if you have experience in both programming for encryption and using VMware, ...

I'm in need of developing a Windows driver to use indirect display driver to store extend virtual screen picture to bitmap file. Ideal Skills and Experience for the Job: - Expertise in Windows driver development - Proven knowledge and experience in DirectX. Requirements: - Development of a Windows driver based on Indirect Display Driver. - A test application with a button, click "Capture" that capture frame from the virtual screen. - Ensuring the compatibility of the driver with the hardware is crucial in this project

...and designed to operate on Windows. Key aspects of the project: - **Adaptation**: The task is to take this existing code and modify it to allow the user to switch between different camera modes. I have a specific vision for this system which includes switching between: - The system camera - The system camera with a watermark - A full-screen image - **Functionality**: The change between these modes should be quick and seamless, and should be implemented through keyboard shortcuts. The user should be able to easily navigate and switch between these modes without any lag or glitches. —— more information: I would like you to adapt some code for a simple virtual camera. The basic code is already all here from Microsoft

I'm currently running on Windows Server 2019 and am in need of a certified TruNAS professional to manage my network and join the Truenas to the domain. Your responsibilities will include the following: - Configuring and managing AD and/or the Truenas server side. - Ensuring seamless integration with existing infrastructure. You need to have hands-on experience with Windows Server 2019 and proficient skills with managing TruNAS networks. Full understanding AD protocols is paramount. Understanding the importance of system availability and data protection will be crucial to this role.

I have an autocad drawing of a house I need someone to calculate the surface area of the facade for the stone work only excludnig the windows adding to the the exterior part of the boundry wall

I'm looking for a skilled 3D designer who can create a detailed, industrial-grade, metal switchboard with a focus on power distribution. A small single cubical to be of similar style of rest of existing switchboard (Step file will be shared) Need to place a circuit breaker and ATS, and draw in Busbar

I am in need of an expert who can set up a Windows Server Virtual Machine in Azure for me. The VM will need to be configured with 4 CPUs and 8GB of RAM. Skills and Experience Required: 1. Azure Expertise: You should have a deep understanding of Azure services and be able to navigate the Azure portal with ease. 2. Windows Server Administration: Proficiency in Windows Server operating system is crucial for this project. 3. Virtual Machine Configuration: Experience in setting up Virtual Machines, specifically with the requirements of 4 CPUs and 8GB RAM. 4. Networking: Proficiency in networking, particularly the ability to configure my Virtual Meraki to the Azure VM.

I require a skilled drafter to redo my electric circuit from a JPEG image file. The image I have isn't clear and could do with your expert touch. - The task involves a high-level overview of the circuit. - No need to add details or annotations to components. - The final version should be delivered in PDF format. Ideally, you will have an electrical background with strong drafting skills and the ability to interpret and redraw an unclear image. Your attention to detail will come handy in ensuring the project is perfectly executed. Please ensure that the final circuit is clearly visible and professionally presented.

I am looking for an experienced electronics designer to create a power supply circuit board. This project requires a detailed understanding of circuits and experience working with discrete components. Your responsibilities will include: - Designing a power supply circuit board that meets my specifications using discrete components. - Providing a detailed explanation of your design, so I can understand how it functions. Ideal candidates should: - Have experience designing circuit boards, specifically power supply boards. - Be proficient with discrete components. - Have the ability to explain highly technical concepts in a manner that I can understand. Looking forward to seeing your bids! its a small constant current supply for LED Light, with input 230v AC ...

i need someone to get my images that i have and make them high quality and light weight. the images are created by the windows snippet tool. the snippets are of screens of a software that i use. i would like someone to get those images and make them sharp and crisp. i purchased some images from shutterstock, and they are high quality and very light weight. i would like to create my images like that. attached are some sample of an image i would to upscale. make an upscale of this image and send it to me, and i will see your work and i will hire you for all my images.

I'm looking for a proficient electronics engineer to design a custom circuit board. I'm unable to disclose details about its specific purpose and use at this time due to confidentiality reasons. Ideal Skills and Experience: - Expertise in circuit board design - Proficient in Electronics Engineering - Experience in custom board designs - Ability to maintain strict confidentiality Please only bid if you're comfortable working with limited project details and are capable of asking insightful questions to determine design specifics.

The idea is to experiment and listen to the frames of the modbus master and slave (Any RS485 modbus slave), you can simulate the HMI with Weintek, for example, with a camera to capture images of the HMI and using OCR (artificial vision) in Python Windows to match the variables found with the memory table that is running, you can virtualize com ports. you can simulate the communication of any process

I'm seeking an advanced C# developer with prior experience in creating desktop applications on Windows. Familiarity with TWAIN integration is crucial. Key Requirements: - Advanced C# Knowledge: The ideal candidate should be comfortable and well-versed in advanced concepts. - Windows Desktop Application Development: Previous experience in developing desktop applications on Windows is a must. - TWAIN Integration: You should have prior experience integrating TWAIN for image scanning functionalities. This is a challenging project that requires a high level of expertise in C# and experience in developing Windows desktop applications, particularly with TWAIN integration. If you're confident in your skills and have a solid track record in similar projects,...

I need a joomla informational website for a business that does construction work, mainly masonry work. I will provide: 1) the websites logo () 2) access to cpanel ...description 3) The phone number and address should be displayed on the top, always visible 4) the message 'Licensed and Insured' should be on top and visible 5) ability to easily edit text and upload pictures from backend These will be the website menus: 1) home 2) patios 3) stoops & steps 4) walkways 5) driveways 6) retaining walls 7) brick & stone veneers 8) More a) Basement Entrances b) Egress Windows c) Outdoor Kitchens d) Firepits, Outdoor Fireplaces and Chimneys Examples of masonry websites you can use for example: 1) 2) 3)