Electronics embedded hardware software outsourcing projects işler

I'm seeking a talented software engineer with expertise in both frontend and backend development, specifically using Java, for a greenfield project to build a new application. Key Responsibilities: - Develop the frontend of the application, ensuring high performance and responsiveness to requests - Design, implement, and maintain the backend of the application, in compliance with the project requirements - Work collaboratively with our team to integrate user-facing elements with server-side logic - Participate in the entire application lifecycle, with an emphasis on coding and debugging Ideal candidate would: - Have proven experience in software development, particularly in building applications from scratch - Be proficient in Java, with a strong understanding of its ...

...requiring hardware. Key Requirements: OS Compatibility: The emulator should work exclusively on Windows systems. Emulation Focus: Aimed at simulating keyboard inputs for gaming applications. Ideal Skills and Experience: Proficient in Windows application development. Expert in low-level programming, specifically in system-level assembly language. Knowledgeable in gaming input emulation and keyboard input simulation. Experience in backend applications is beneficial. Project Specifics: The emulator must not breach game firewall securities or require unauthorized system modifications such as disabling driver signature enforcement. It should operate successfully in the game, similar to devices like Arduino Leonardo or ESP32. The goal is to simulate pressing the Z1 keys solely throu...

I'm looking for a skilled PCB designer, with experience in automotive electronics to create a medium-sized, bendable PCB for an upcoming project. Key Project Details: - Application: The intended use of the PCB is specifically for automotive applications. - PCB Flexibility: The design should be bendable, but not necessarily foldable or twistable. - Size: The overall dimensions of the PCB fall within the medium range, roughly 10-20 cm. Skills and Experience Required: - Previous experience with automotive electronics and PCB design. - Understanding of the unique challenges and requirements of designing for a vehicle environment. - Familiarity with creating bendable PCBs, using appropriate materials and techniques to ensure the desired flexibility without compromising the...

...30 (thirty) days to obtain these items. That's fine with me. However, I will * not * help you deal with corrupt local customs officials who require bribes to release goods. Any “horror stories” you might have heard or read about corrupt local customs officials in your country requiring bribes to release goods probably were for items such as expensive phones and laptops, not a bunch of simple electronics components. Put simply: I suppose a customs official looking at an iPhone 14 Pro might think, “Wow! This is an expensive phone. Yeah, this guy has money. Let me get a bribe out of him.” Whereas, if he were to look at a few ESP32 development boards which cost less than $5 (Five Dollars) each? Meh. I doubt he’s even going to think about asking...

...industrial design expert specialised in electronics to assist me with my rowing performance tracking device. The project is currently in the conceptual/idea phase. I need help with creating 3D models and renderings for the design. The ideal candidate will have prior experience in electronics industrial design and 3D modeling in particular. Ideal skills for this job include: - Industrial design expertise, particularly in electronics - Proficiency in 3D modeling and rendering - Strong communication skills, as collaboration is essential in this phase of the project I'm looking for a freelancer who can take my rowing performance device concept and bring it to life through detailed and realistic 3D models. A keen eye for aesthetics and functionality in electr...

We want to delelop a cibersecurity software/app to Sell to other companies that can check each computer and device, as also as detect treaths to the company network/devices like e-mails, apps, and suspicious content that puts the company security in Treath.

I'm in need of a professional and well-rounded computer programmer to build and manage various software applications. Key Tasks: - Develop innovative web and mobile applications - Manage and maintain the software database Ideal Experience and Skills: - Strong familiarity and skill in programming languages (Java, Python or C++) preferred - Previous experience in database management - Proven track record in developing web and mobile applications While skills in Java, Python, and C++ are a bonus, I'm primarily interested in your ability to perform the tasks specified above. Show me what you've got!

I'm currently searching for an experienced AutoCAD Designer who can help craft detailed plans for a golf simulator. The main focus areas are: 1. Swinging Area: You will be provided with specific width and height measurements to guide your design. 2. Integration of Electronic Components: We need plans for mounting and installing the electronics that make the simulation possible. 3. Flooring Material & Lighting Requirements: The design should incorporate the specified materials and suitable lighting for the swinging area. Experience in designing sports simulators or similar environments would be a huge plus. Please, show examples of your previous work in your proposal if available. Succinct and accurate drawing styles are appreciated. Thank you for your interest in my proje...

Company Overview: We specialize in providing innovative automation solutions for small businesses, including CRM, marketing automation, graphic design, and print solutions. Our goal is to streamline operations and drive growth with smart, reliable, and professional tools. Design Guidelines: Concept and Style: Modern and Professional: The logo should reflect a contemporary and professional look. Innovative and Smart: Emphasize the innovative and intelligent nature of our automation solutions. Fluidity and Flow: Incorporate elements that suggest smooth operations and efficiency. Color Palette: Primary colors: Consider using blues, greens, or grays to convey trust, innovation, and reliability. Accent colors: Orange or silver can be used as accent colors to add vibrancy and modernity. Typo...

(Business Development Executive) (with good track record) + Must have strong Sales Managerial Experience in any B2B SaaS company OR been as a Sales Partner. + Experience in dealing with B2B + USA Market + Must be interested in taking on new challenges. + Should have hands-on experience. + Only Freelancers are Allowed (No Agencies or No Companies) Fixed Price Project: $3000 / Project

I am seeking a skilled and experienced freelancer to assist me in developing a comprehensive projects portfolio that highlights my expertise in Lean Six Sigma, Inventory Management, Kaizen, and Continuous Improvement. Key Elements: - I will need you to include detailed project descriptions and project images in the portfolio. - The key projects that will be included in the portfolio will be related to Inventory Management and Optimization. Specifically, the project will focus on demonstrating my use of strategies to achieve results that are reflected in Key Performance Indicators (KPI's). Ideal Candidate: - Experienced in Lean Six Sigma, Inventory Management, Kaizen, and Continuous Improvement. - Proficient in creating engaging and visually appealing project portfolio....

...but doesn't launch on Windows 11. I'm not certain about the original coding language as I skipped that question, making it necessary for the freelancer to have adept skills in multiple languages, mainly in C++, Java, and Python. I'm also unsure about specific software or hardware dependencies that might be influencing the situation. However, the freelancer must have the expertise to identify and handle this potentiality. As for specific program functions, the user left a gap as well, so an experienced developer in generic software protocols and universal functions would be highly appreciated. However, the freelancer needs to understand that the scope of the project is conversion and compatibility, rather than development or adjustment of any speci...

Lütfen detayları görmek için Kaydolun ya da Giriş Yapın.

I'm in need of a professional photographer who excels in product photography. Our project centers around creating engaging photos of an Apple AirTag Holder for our product listing on eBay. The successful freelancer will masterfully capture different angles ...product photography. Our project centers around creating engaging photos of an Apple AirTag Holder for our product listing on eBay. The successful freelancer will masterfully capture different angles of the holder that include: - Front view - Back view - Side view An eye for detail, lighting, and aesthetics that accentuate the product features is a must-have skill. Previous experience with electronics product photography will be highly advantageous. Let's make our product stand out and attract potential buyers with ...

Busco un desarrollador experto en Unity3D que me ayude a crear un desarrollo para PC/linux. No es nada complejo. Los requisitos clave para este proyecto incluyen: - Experiencia en Unity3...señal dmx sincronizada - En la compilación necesito poder asignar las salidas de vídeo correspondientes a la sección de cada salida. - Asegurar que el juego se ejecuta sin problemas y está optimizado para PC/linux. Si tienes un portafolio de trabajos previos en Unity3D, por favor compártelo cuando ofertes. Este proyecto requiere a alguien que pueda desarrollar el sistema en conjunto con el hardware en mis instalaciones (Madrid) para asegurar que funciione todo correctamente. Más información ponte en contacto. Para un programador experto ...

Job Description: We are seeking an experienced software developer to create code for a power electronics control system. The project involves using an Arduino DUE and the IMC101T T038 motor controller. The software should control and regulate both the grid side and machine side using Space Vector PWM (SVPWM). Communication between the Arduino and other components will be handled via serial communication. Additionally, the system should include a quadrant display using 4 LEDs to indicate whether it is operating in motor or generator mode. All datasheets and circuit diagrams will be provided. Key Responsibilities: Control and Regulation: Implement SVPWM on both grid and machine sides. Grid-side control: Adjustable power factor (cos(φ)), current, and power. Machine...

I'm at the idea/concept stage of a new automated device and I'm seeking an experienced freelancer with strong prototyping skills to bring this concept to life. Key Requirements: - Experience: I need someone who's well-versed in electronics, industrial design, and robotics. Your portfolio should reflect past projects that demonstrate your ability to design and prototype automated devices. - Prototyping: The primary skill I'm looking for is your ability to translate concepts into physical prototypes. You should be proficient in using tools and materials to build and test prototypes efficiently. - Problem-Solving: A significant part of this project will involve troubleshooting and refining the prototype as we progress. Your problem-solving skills should be t...

This project involves cleaning up an MP3 audio file. Key requirements are: - Experience with audio editing and noise reduction - Expertise in removing embedded sounds, particularly the echo and piano sounds which are equally distributed throughout this file - Delicate handling is needed as the given audio file has low quality (distorted or noisy) - Ability to complete tasks within deadlines - Experience with handling audio files of less quality like this one will be favorable - Should have access to high-quality audio processing and editing software to deliver optimal results.

...looking for a skilled software developer to create a Windows-compatible software application. This software should be specifically tailored to help my sales team improve their performance and to calculate their incentives. Key Requirements: - Compatibility: The software should be compatible with Windows. - Integration: There's no need for the software to be integrated with any existing systems, so you can focus solely on creating the best software for our sales team. - Data Input: The software should have the capability to import data from Excel/CSV files. This method will facilitate the input of sales data and make the software more user-friendly for our team. Ideal Skills and Experience: - Proficient in Windows software...

I'm in need of a professional portfolio website that will help me highlight my work, specifically organized by client industry. It needs to have video player capabilities to showcase my projects. Key Requirements: - Portfolio Organization: The portfolio should be structured based on the industries of my clients. This will help visitors navigate and understand my work in connection to different sectors. - Video Player Integration: I want a sleek and effective video player to be embedded within my website, to help present my projects in a dynamic and engaging manner. Ideal Skills and Experience: - Proven track record in designing and developing portfolio websites, especially those organized by client industry. - Proficiency in integrating and customizing video pla...

Project Description: We seek a highly skilled software developer to compile the ARM64 code from GitHub, based on Golang 'go'. Your role is crucial in ensuring the Velociraptor server operates flawlessly on the Odroid N2+ platform (4GB RAM) by creating an installer or Debian package (.deb) that functions flawlessly on Debian Ubuntu 20.04 (MATE Desktop). The ARM64 code is available online, and we wish to have it as a package so the user can run it and go through the setup of the velociraptor server seamlessly on the N2+, use the local webserver to create agents (sensors as MSI or exes) and analyse/collect remote endpoints using the open source tool on the box. This project involves adapting the Velociraptor software, an open-source security tool , to work seamle...

I'm looking for a skilled Flutter developer who can help me build a multi-platform application that is set to be a long-term project. My primary goal is to have a reliable app that includes a variety of feat...provide a seamless user experience. the app which we building will be used 24/7/365 non stop always on Skills & Experience: - Proficiency in Flutter development across multiple platforms (Android & iOS , Windows , Web). - Strong understanding and experience with user authentication, push notifications, and local database management. - Prior work with Firebase authentication . - Experience in hardware and IoT integration . THIS IS A LONG TERM PROJECT IS NOT A ONE TIME THING AND IT MIGHT TAKE A YEAR TO FINISH PLEASE WRITE FOR ME WHY WOULD BE THE BEST FIT FO...

I need a reliable professional to help me with monthly inventory updates from the dealers and the sales department. Key Tasks: - Quantity Update: Ensure all stock levels are accurately reflected in our records. - Product Description Update: Make sure all product descriptions are up-to-date and accurate. - Product Code, UOM (Kit/Vials), Rupee Value: Cross-check and update product codes, Unit of Measure (Kit/Vials) and Rupee Value accordingly. Format: I have a specific format that the inventory updates need to be in. You will need to use this template to ensure data consistency and compatibility with our existing systems. Frequency: This is a monthly task and I would need your support on an ongoing basis. Ideal Skills: - Proficiency in inventory management. - Attention to detail and acc...

I'm in need of a desktop application that automates sperm analysis, leveraging the power of AI. This software will be used to create spermograms. Key Requirements: - Automation of Sperm Analysis: The software should be able to fully automate sperm analysis. This includes motility, morphology, and concentration analysis. - Utilization of AI: The software should harness the capabilities of Artificial Intelligence to improve the accuracy of the analysis. - Creation of Spermograms: The main purpose of the software is to create spermograms. This requires the software to be able to present the analysis in an organized and understandable way. Ideal Freelancer: - Proficient in AI and machine learning, particularly in the healthcare or biological fields. ...

I'm in need of a skilled 3D designer who can take my concept and transform it into an interactive prototype of an electronic device. Key requirements include: - Knowledge in industrial design, particularly in electronics - Expertise in creating 3D prototypes - Ability to align with my vision and provide creative input for design improvement From the outset, I'm relying on the designer's technical and creative abilities as I'll be providing the basic concept without a detailed sketch. In addition to creating a detailed and realistic 3D model of the electronic device, I would love your inputs on functionality and aesthetics. If you're keen on bringing innovative products to life and possess the mentioned skills, I'd love to discuss further.

I am considering purchasing Ultimate POS software, but it lacks a crucial feature for managing individual product serial numbers. Although it includes an IMEI/Serial number feature, it only allows you to add the serial number at the point of sale. However, I need to input the serial numbers when updating the stock. For instance, if I purchase 5 units of the GoPro 12 model, I want to update my inventory by entering the serial number for each of the 5 units. This way, I can track which specific serial numbers are currently in stock. Additionally, I need the capability to search for products by their serial number when making a sale. The ideal candidate should have prior experience in customizing POS software, particularly in adding new fields, and should be proficient in inve...

...built employee process tracking software. The software needs to be desktop application-based for easy access and user interface. Key features that the software should have are: - Time tracking: To help monitor how much time each employee is spending on their tasks. - Task Management: The ability to assign, manage, and monitor tasks is crucial. I want to keep track of who is doing what and when. - Performance analytics: The software should have robust analytics capabilities to measure performance and productivity for everyone on the team. The freelancer should ideally have experience in building similar applications and a strong understanding in incorporating the required analytics within the software. Familiarity with employing privacy measures i...

Please read content of requerments I am seeking an experienced 360 marketing specialist for my social media platforms which include Facebook, Instagram, LinkedIn, and Twitter. The successful candidate will need to be a native Spanish speaker. To sell Point of sale For B2B sells of software Key responsibilities include: - Creating engaging and compelling content that will resonate with my target audience - Designing and implementing a comprehensive social media strategy aimed at driving sales - Creating and designing the Ads - Monitoring and analyzing metrics to ensure the effectiveness of campaigns

It is necessary finish a web application in python + django regard the statistic of stocks. So it is necessary: some fetaures of some filter; -. make some change to mysql database and api to datafeed. -. verify the formulas and add some features; -. make better the design. - create an admin page with security login and import stocks manually. Please answer only if you can show similar experiences

...in China. They will have a strong background in mechanical engineering, sourcing, negotiating contracts, and coordinating logistics. Strong communication skills will be essential to effectively communicate client needs to suppliers and manage the end-to-end procurement process. Qualifications: 1. Proven experience in sourcing, procurement, and account management, ideally within the consumer electronics, manufacturing, or construction industry. 2. Bachelor's degree in Mechanical or Industrial Engineering, Supply Chain Management, or a related field strongly preferred. 3. Fluency in English and strong technical Mandarin abilities are required — both written and verbal. 4. Ability to work independently and prioritize tasks in a fast-paced environment. 5. Knowledge of int...

...framework, and user interface design. Key Skills & Experience: - Strong proficiency in C++ - Extensive experience with the QT framework - Excellent User Interface (UI) design skills - Knowledge in Python and 3D will be a plus The main function: 1: Windows platform, jointly developed by QT+python. 2: Communicate with hardware devices through serial port/Ethernet. 3: Support MODBUS-485, TCP, UDP and other communication protocols, with 1ms cycle response. 4: Support hardware parameter configuration, multi-channel data analysis, storage, data playback, and support real-time data curves at different communication rates. 5: Supports local and cloud dual storage. 6: Port a Python data analysis open source library (provided by us), which needs to display the analyzed data ...

...need of an experienced software developer to create a custom application for soil testing. The software should be capable of handling comprehensive soil analysis and generating relevant reports. Key Requirements: - A software that can analyze a wide range of soil testing parameters, including but not limited to pH levels, nutrient composition, and soil moisture content. - The primary focus of the software should be on advancing agricultural soil quality and providing actionable recommendations for soil improvement. Ideal Skills: - Proficiency in software development, with a focus on applications related to scientific analysis and data processing. - Familiarity with soil science or agriculture would be a plus. - Past experience in developing similar a...

Ho bisogno di un programma che mi permetta di aggiornare disponibilità e prezzo di vendita dei prodotti presenti nello store shopify partendo da un file excel/csv che viene generato automaticamente ogni x ore e viene esportato dal getionale su cartella FTP

I'm in need of a skilled freelancer to help me purchase a range of electronics components. Ideal Candidate: - Experience in purchasing electronics components. - Knowledge of common suppliers and market trends. - Good negotiation skills to secure the best deals. - Understanding of quality standards and counterfeit prevention. Additional Details: - The components needed are varied, including resistors, capacitors, diodes, and more. - My primary use for these components is in consumer electronics, so familiarity with this sector is a plus. - Please provide your past experiences in purchasing electronics components in your application.

Hi, I am looking for someone to setup a Linux VM for me. I have tried to do it myself but have failed. I want to setup a VM so that I can host my own on-premise cloud. I got filerun as software from to do it with. Unfortunately, their installation instructions are not working out for me due to a lack of Linux knowledge. Now I am at a point where someone do it for me and I can work from there. I would like to see you do it so that I can see where I went wrong. I would also like it if you can assist me in the future if and when there is problems.

I'm urgently in need of a software developer who can help me fix some bugs in my software and make some necessary adjustments to the code. Key Requirements: - Debugging: You should be experienced in identifying and resolving bugs in software. - Code Customization: The project may require some customization of the code to ensure it meets my requirements. Your experience with software development, particularly with Java, Python or C++, will be highly regarded. The project is quite urgent, so I'm looking for someone who can start immediately and deliver fast, but without compromising the quality of the work.

...seeking a talented software developer to create a state-of-the-art medical coding and billing software. This software should be packed with various features such as: - Patient Information Management: Manage patient's data with utmost ease and accuracy. - Claims Processing: Streamline processing and tracking of patient claims. - Reporting and Analytics: Generate concise reports and conduct in-depth analytics. - Medical coding: Incorporate an AI-powered module to provide coding suggestions. One of the compelling additions I desire is the integration of AI functionalities mainly for predictive diagnostics. This should help in forecasting medical conditions based on the available patient data. The candidate for this project should preferably have a background in ...

...developer to create a personalized billing software that caters to my business needs. This program should be compatible with the Windows operating system. Must-Have Features: - Inventory Management: The software should assist in tracking, restocking, and managing our inventory efficiently. - Customer Management: Maintaining customer details for smoother transitions and personalized customer experiences is crucial. - Sales Reporting: We require comprehensive sales reports to review our business's progress and areas for improvement. Users: The software should easily accommodate 1-5 users at once, with unique access capabilities for each user. Ideal Candidates: I'm seeking professionals with experience designing and developing business-centric softwar...

I need someone to help me with my weekly projects that involve Quality Assurance Testing and Consultancy services for a few major international tech firms. Projects and work are continuously available so there is plenty of work weekly We will work through remote working software to connect to our local machines using this software, not the other way around so there is nothing to worry about your privacy. Testing will be done on Windows desktop and will mainly involve QA checks and regression Testing of certain software. All testing done are on confidential pre-release test builds so discretion of what you test IS IMPORTANT. Please acknowledge this in your proposal. An NDA will be signed in this regard. I require someone with excellent IT skills and a v...

I am in need of an experienced hardware engineer, fully versed in circuit design and PCB layout. My aim is to develop a novel product. To meet the project objectives, the following experience and skills are critical: - Proficiency in circuit design - Expertise in PCB layout - Experience in working with Microcontrollers Understanding the intricacies of Microcontrollers is key as they are the central component for the new design. Efficiency, attention to detail and creativity in your approach will significantly contribute to the success of this innovative product design.

I'm in need of a versatile e-commerce website developer who can help me create a platform similar to alibaba.com. The website is intended to sell a variety of products including Electronics, Clothing, Home goods, and Websites. Key Requirements: - The website needs to enable the sale of ready-made products, with a specific focus on tailor-made website accounts. - I'm also seeking customization options for my products, specifically in terms of size dimensions, material choice, and 'Internet Browsing'. Skills and Experience: - Proven experience in developing multi-product e-commerce platforms. - Proficiency in creating platforms with dynamic product offerings and customizable options. - Strong understanding of consumer behavior and e-commerce trends. Please share...

More details: Is this project for business or personal use? Personal What information should successful freelancers include in their application? Detailed project proposals How soon do you need your project completed? ASAP.

I'm in need of many skilled freelancers based in Udupi, who can assist me with various projects. The main goal is to support me in various projects and build a strong company. Key Requirements: - Skilled in particular areas like web-development, Flutter, content creation, UI/UX etc. - Able to work out of home or co-working space - Able to provide long term commitment to projects I am building a panel of freelancers in Udupi to work out of my co-working space, who can support me in client projects as well as my own projects. I would also like to build a set of talent pool out of Udupi to cater to the local as well as global audience.

I am looking for someone to create a custom vehicle repair shop software for me, in VB.NET, Windows Form project, using .NET Framework 8. The full source code must be provided. Attached is the full project requirement

I'm in need of a full-time, mid-level software developer to join our e-commerce company. You should be proficient in Python, Java, and PHP. Your primary responsibilities will include: - Coding and programming: Developing robust, scalable software solutions for our e-commerce platform. - Database management: Ensuring the efficient operation of our databases and managing related processes. - Bug fixing and troubleshooting: Identifying and addressing software issues to maximize performance. Your experience should ideally span 2-5 years, giving you a good understanding of the nuances of software development. In addition to your technical prowess, you should be able to work efficiently within a team and communicate effectively. Your input will be crucial in e...

As a seller of engine parts, navigation instruments, safety equipment, and marine electronics, I'm looking for a freelancer who can identify and connect me with ship and vessel owners. The main aim is to sell these items as replacement parts, ensuring a continued market presence and potential business growth. Key Requirements: - Proficiency in B2B sales and market research within the marine industry. - Strong understanding of various marine equipment categories. - Ability to effectively network and connect with ship and vessel owners. - Experience in selling marine products is a plus. Your role will be to not only find these potential customers but also to establish a rapport with them. This project will require a proactive approach, being able to identify and reach out to t...

I'm in need of a skilled software developer who has a good understanding of WordPress and ecommerce functions. The primary goal of my website is to provide technical software-related help whenever needed, so I'll need someone who's able to assist in this regard. Key Requirements: - Proficiency in WordPress: You should be able to customize themes, manage plugins, and handle general WordPress-related tasks. - Ecommerce Experience: A good understanding of ecommerce functionalities and the ability to implement and optimize them on a WordPress site. - Technical Software Knowledge: I require assistance with software applications and tools. Your expertise in this area will be crucial in ensuring the success of this project. In summary, the ideal candid...

I'm looking for drafters experienced in both civil and telecommunications projects to join my team. You will need to be proficient in AutoCAD and Civil 3D, as these are the primary software we use. Key requirements include: - Proficiency in both Civil and Telecommunications drafting - Extensive experience using AutoCAD and Civil 3D This is an ongoing project with varying deadlines, so being able to manage your time efficiently is a must. Please highlight your experience in both fields and your software proficiency in your proposal.

...in need of a Python developer with expertise in hardware oriented programming to add some additional functionality to an already written script of mine. The existing functions also need to be double-checked for correctness. Key requirements include: - Modify the existing Python script to incorporate the additional features required - Review the current script and ascertain that all existing functions are properly written and functioning as they should - Build a Debian OS image for COM (Computer-On-Module) installation that can be used to implement the updated python script seamlessly. Success in this role will require: - Proven experience with Python, specifically in writing and improving scripts with a focus towards integration with hardware - Solid knowledge and expe...

...community forums. The ecommerce module must support selling of various third-party drop shipped physical products as well as own branded merchandise. It should facilitate drop shipping fulfillment and allow adding digital goods like audio files and ebooks for purchase. A subscription feature for recurring payments is also required. For content, the site will publish original articles and host embedded video tutorials sourced from YouTube and Instagram (produced by us). The content management system must offer an intuitive interface for creating and organizing multimedia posts. Community engagement is important. As such, a discussion forum with user profiles, threads, and moderation tools will be developed. Members can participate in topic-based conversations and interact and h...