Seeking Experts to Develop QR Code Product Scanning System with Database Integration and User App

$250-750 USD

Closed

Posted

18 days ago

$250-750 USD

Paid on delivery

Description: I am looking for skilled professionals to help build a system that includes both hardware and software components. The goal is to create a complete solution that can: Scan QR Codes: A hardware device with an integrated QR code reader. Communicate with a Database: The device will send scanned data to a cloud-based database via Wi-Fi. Display Product Information: The scanned data will be shown on a user application and a hardware display. Provide Audio Feedback: The hardware will include a speaker for notifications or feedback. Key Requirements Hardware Development Selection and configuration of QR code scanner, display screen, speaker, and Wi-Fi module. Integration of hardware components using platforms like Raspberry Pi, Arduino, or other suitable alternatives. Backend Development Design and implementation of a database to store product information (e.g., MySQL, MongoDB). Development of secure and efficient APIs for data exchange between the hardware, database, and user application. Frontend Development Creation of a user-friendly mobile app (iOS/Android) to display product details in real-time. Development of a responsive UI for the hardware’s display screen. System Integration Seamless communication between hardware, database, and app. Implementation of security protocols for data transmission. What I’m Looking For I’m open to hiring individuals or a team with expertise in the following areas: Hardware Engineering and Embedded Systems IoT Development and Hardware-Software Integration Backend Development (Database Design, API Development) Mobile App Development (Android/iOS) System Architecture and Full-Stack Development Experience with similar projects (QR code systems, IoT, or smart devices) is highly preferred. Deliverables Fully functional hardware prototype with the listed features. Backend system (database and APIs) to process and store data. Mobile application with a clean and intuitive UI. Documentation for all components for future scalability. If you’re confident in delivering this solution or providing guidance on the best approach, please share: Relevant experience and past projects. Proposed timeline and milestones. Estimated cost for consultation or full development.

PHP

Mobile App Development

MySQL

Software Architecture

Java

Project ID: 38945347

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162 proposals

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Active 12 days ago

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162 freelancers are bidding on average $562 USD for this job

@ahmadayaz

As an experienced Full Stack Developer with expertise in IoT, I am eager to collaborate on your project merging hardware and software elements seamlessly. To tailor our approach effectively, I need more details on the system's scale and your hardware preferences. I excel in developing with platforms like Raspberry Pi and Arduino for hardware components and backend systems using databases like MySQL and MongoDB. Additionally, my skills in frontend development and Mobile App Design ensure an intuitive user experience. Integration and data security are paramount in system development. I have a proven track record in system integration and implementing strong security protocols to safeguard data effectively. Let's discuss your vision and objectives to define a strategic timeline, achievable milestones, and a compensation structure that aligns with your expectations. Together, we can create a tailored solution that elevates your project.

$675 USD in 5 days

4.9

(321 reviews)

8.8

@asifchaudhry2015

Hello! I have extensive experience in both hardware and software development, particularly in IoT and system integration. I can help you build a complete solution that integrates the hardware components (QR code scanner, display, speaker, Wi-Fi module) with a backend database and mobile app. With proficiency in MySQL, PHP, Java, and mobile app development for iOS and Android, I can ensure seamless communication across all system components. Let's discuss your vision, timeline, and cost expectations for this project!

$600 USD in 7 days

4.9

(356 reviews)

9.0

@softsolution2000

Hi there We are a team of skilled professionals specializing in hardware and software development, with expertise in IoT, mobile app development, and full-stack development. We have experience in QR code systems and smart devices, making us a suitable choice for this project. We propose using Raspberry Pi for hardware integration and MongoDB for the database. Our proposed timeline includes milestones for hardware development, backend system creation, mobile app development, and system integration. We are confident in delivering a fully functional prototype with a user-friendly interface and secure data transmission. Please go through my profile its 15 years old see the work I did over the years. ---> No Win No Fee means that your satisfaction is my utmost priority. <---- Lets discuss the job details. Moreover, I am willing to start the job and perform tasks without even being hired; it is just to show my commitment to this project. Looking forward to hear from you. Regards Shah

$488 USD in 7 days

4.9

(431 reviews)

8.7

@nmans

Thank you for considering me and my skilled team for this exciting QR code project! We have a wealth of knowledge in mobile app development and PHP, and have delivered successful end-to-end solutions to clients in the past. The way I see it, we would be a perfect partner for your endeavor because we don't believe in just meeting expectations, but rather exceeding them at every step. Our expertise in backend development shines through with database design and API development. With us being well-versed in MySQL and MongoDB, you can rest assured knowing your QR scanning data will be stored efficiently and securely. Additionally, our front-end capabilities ensure that we can create a user-friendly mobile app equipped with a responsive UI to display real-time product information retrieved from the database. Moreover, our previous full-stack development experience has prepared us to seamlessly integrate hardware components with the software system - minimizing any potential glitches whilst enhancing overall functionality. Lastly, it's worth mentioning that we constantly stay up-to-date with the latest trends, which includes incorporating rigid security protocols to keep your data transmission impenetrable. All-in-all, reaching out would be a decision that ensures maximum ROI for you!

$500 USD in 7 days

5.0

(413 reviews)

8.1

@seefattechnologi

Got it highly able to to Develop QR Code Product Scanning System with Database Integration and User App**I am a Passionate MOBILE APP developer having rich experience with so many successful Tasks. -----I will deliver you Quality and Accurate work within the deadline----- Let’s connect on chat for further discussion and start quickly. Thanks!!

$1,500 USD in 15 days

4.9

(117 reviews)

7.9

@onkarkulkarni8

As a team at MAK Online Solutions, we boast the perfect blend of skills you're looking for in this project: Mobile App Development, MySQL, and PHP. Our dive into IoT ventures has given us access to numerous QR code systems and smart devices similar to your needs. We have inline experience in developing hardware-software integrated solutions like the one you require. In terms of hardware development, whether Raspberry Pi or Arduino-based platforms, we're well-versed in vetting and configuring QR code scanners, display screens and speakers in alignment with your requirements. While at it, our backend expertise in database design has seen us deploy stable solutions such as MySQL and MongoDB. Building secure APIs for efficient data exchange comes naturally to us. Moreover, we hold multitasking prowess that complements your need for a topline frontend developer capable of delivering a user-friendly mobile application for both Android and iOS users. Our reputation as a full-stack-centric team is characterized by a great UI coding skillset ensuring an eye-catching presentation of product details on the hardware's display screen. Achievement-wise, we are 43 professionals deep in bringing over 700 projects across 35 countries to fruition. We deliver quality at scale.

$4,500 USD in 35 days

4.9

(180 reviews)

7.9

@einnovention

With over 10 years of experience in full-stack development and a specialty in IoT and smart devices, my team at Einnovention is uniquely equipped to handle your QR code scanning project. We have successfully completed over 248 projects on Freelancer.com alone, and our clients consistently praise our innovative, comprehensive approach.

$550 USD in 7 days

4.9

(203 reviews)

7.8

@Julian29

Hello, I am excited about the opportunity to assist you with developing a QR code product scanning system with seamless hardware and software integration. My expertise in both hardware development and full-stack development makes me a strong fit for this project. Proposed Approach: Hardware Development: I will help in selecting and configuring the best QR code scanner, display screen, speaker, and Wi-Fi module, and integrate them using Raspberry Pi or Arduino. Backend Development: I will design a secure cloud-based database (e.g., MySQL or MongoDB) and develop APIs to facilitate smooth communication between the hardware, database, and the user app. Frontend Development: A user-friendly mobile app (iOS/Android) will be developed to display product details, with a responsive UI on the hardware display. System Integration: Ensuring flawless communication between the hardware, database, and app, with security protocols for safe data transmission. Relevant Experience: I have previously worked on similar IoT and QR code-based systems, involving embedded hardware integration and full-stack development. Timeline and Budget: Upon discussing project details, I can provide a detailed timeline and cost breakdown. Let’s connect to discuss the next steps in bringing your project to life! Thank you!

$300 USD in 7 days

4.7

(154 reviews)

8.2

@admk80

Dear Kareem A. Greetings I have seen your posted job and I feel very much interested to work with you. I have read the things that you want. I consider myself perfect match for this job because I am working as a Web Developer since the last 10 years. I can assure you that my skills will not let you down. I have learnt almost all the languages such as the languages such as Software Architecture, PHP, MySQL, Mobile App Development and Java etc. and gathered some excellent skills on Web Developing. I believe that what will take me far from my competitors is my experience. I have been working as a web developer for the last four years and have proved myself many times. You can search work histories and their ratings to be sure. I am confident that I can be a good employee for you because I know what you want. You can have a check on my profile, Portfolio, Work History and Feedbacks to satisfy your needs. I can assure you that I will do my best to do your job. Yours Faithfully Mr. Arshad

$400 USD in 7 days

4.8

(279 reviews)

7.5

@kamran2012

Hello, I’m excited about your project to develop and code a product and confident in delivering a robust, scalable, and efficient solution tailored to your requirements. With expertise in PHP and full-stack development, I can create a feature-rich product that aligns with your vision and business goals. Questions Could you provide more details about the product’s functionalities and features? Do you have a preferred tech stack or framework for development? Should the product include integrations with third-party APIs or services? Let’s discuss the specific details in private to ensure everything meets your expectations. I am a TOP Rated Freelancer, and you can check my reviews here as well: https://www.freelancer.com/u/kamran2012. Looking forward to potentially working together on this project. Thanks and Best regards, Kamran.

$250 USD in 3 days

4.8

(75 reviews)

7.7

@Hammadhassan21

Greetings! I can create you a seamless system tailored to your requirements. From hardware configuration (QR scanner, display, and speaker) to backend database integration and a user-friendly mobile app, my approach ensures efficiency and scalability. For experienced you can surely visit my profile: https://www.freelancer.com/u/Hammadhassan21 Let’s discuss timelines and milestones to bring this project to life! Cheers!

$500 USD in 15 days

4.9

(96 reviews)

7.6

@CodeTasker

Hi, I am experienced app developer, I checked your requirements, I am ready to develop an app for you and I will work till you are 100% satisfied with my work, can we talk? For previous work: https://www.freelancer.com/u/CodeTasker Regards :Imran

$500 USD in 7 days

5.0

(35 reviews)

6.8

@abhisaini0188

Hello, Building a comprehensive QR code product scanning system with database integration and a user app is a complex task that requires skill and experience in multiple fields, which I am confident to bring to the table. With hands-on knowledge of hardware engineering, IoT development, backend development, mobile app development, and full-stack architecture, I can ensure seamless communication between hardware, database, and app in your system. To highlight a few points from my bio that adhere significantly to your project requirements include; my proficiency in MERN/MEAN stack which is necessary for the backend management and API development, expertise in mobile development particularly using Android and access building cross-platform mobile applications using React Native - relevant to your call for an iOS/Android application. Thank you

$750 USD in 7 days

5.0

(23 reviews)

6.4

@ankasky

Hello sir, hope you're doing great ! I have 7+ years of experience in software architecture, mobile app development, and backend systems, and I’m confident in my ability to help you create this comprehensive hardware-software solution. From developing secure APIs and designing the database to creating user-friendly mobile apps, I can ensure seamless integration between hardware, database, and the app. Quick questions: Could you clarify which IoT platform you prefer for hardware integration (e.g., Raspberry Pi, Arduino)? Additionally, would you like a detailed timeline for each phase of development? Looking forward to collaborating on this exciting project! Feel free to visit my portfolio for examples of my previous works: https://www.freelancer.com/u/ankasky.

$750 USD in 15 days

4.9

(106 reviews)

6.4

@giaphung2k1

salām I guarantee quality code, timely delivery, and proactive communication throughout the project lifecycle. My goal is to build a long-term relationship with you based on trust and mutual success. I'm available for a quick call to discuss your needs in more detail. Please contact me at . Giáp Văn Hưng

$558 USD in 7 days

5.0

(137 reviews)

6.3

@irfanui

Hey, This is Mohammad Full Stack, Mobile app Engineer. Your Project Title is Seeking Experts to Develop QR Code Product Scanning System with Database Integration and User App Right? Sure You have come to the right place And I am ready to work over your project. Please visit my portfolio: https://www.freelancer.com/u/irfanui Before accepting this offer please message me in my inbox to have a discussion about this job to avoid confusions. Regards 4th Dimension Partners

$750 USD in 47 days

4.6

(22 reviews)

6.2

@zeeshan411

Hello Kareem A., I hope this message finds you well. I'm writing to express my interest in your Kotlin/Java project. As a dedicated developer with a passion for building robust and scalable applications, I'm excited about the opportunity to collaborate with you and deliver a high-quality solution that exceeds your expectations. With 7 years of experience in Kotlin and Java development, I have a proven track record of creating efficient and maintainable code that powers successful projects. Whether it's developing Android applications, backend services, or enterprise solutions, I possess a deep understanding of both languages and their respective ecosystems. Quality and reliability are the cornerstones of my work. I believe in leveraging the latest technologies and best practices to deliver solutions that not only meet your current requirements but also adapt to future needs. From designing clean and modular architectures to implementing comprehensive testing strategies, I'm committed to delivering a solution that stands the test of time. I have carefully reviewed the details of your project and am confident that my skills and expertise align well with your requirements (Java, PHP, Software Architecture, Mobile App Development and MySQL). I am eager to discuss the project further and explore how we can work together to achieve your goals. Let's schedule a meeting to discuss your project in more detail. I'm available to answer any questions you may have and provide insights on how we can leverage Kotlin and Java to bring your vision to life. Thank you for considering my proposal. I look forward to the possibility of collaborating with you and contributing to the success of your project. Best Regards, KeyDevs Technologies Private Ltd

$585 USD in 12 days

4.8

(64 reviews)

6.1

@arbu1499

Hello! Developing a system that integrates hardware and software to scan QR codes, send data to a database, and provide real-time user feedback is a project I can help with. I'll build a reliable solution where the hardware communicates effectively with the database and displays information seamlessly on both the app and hardware interface, while also ensuring smooth audio notifications. With experience in projects involving complex integrations and IoT systems, I have a solid understanding of bringing together different technologies. I’m confident in delivering a system that works reliably and meets your expectations. Let’s chat to discuss how I can help you with this project. Warm Regards, Arbaz A.

$350 USD in 7 days

4.9

(68 reviews)

6.0

@gtssoftindia

Hi Mate, Are you looking to integrate hardware and software seamlessly for a QR code scanning solution? How soon do you envision the first prototype to be ready for testing? We are a team with expertise in IoT, embedded systems, and full-stack development. For your project, we can design and build the hardware system with integrated QR code scanning, display screens, and audio feedback while ensuring a secure and efficient database connection. Our mobile app will offer real-time product details with a user-friendly interface for both iOS and Android. I’ve provided a ballpark price for the development. We can discuss the budget and timeline further in our discussion. Looking forward to exploring how we can help bring this solution to life! Regards, Tejas J

$500 USD in 7 days

5.0

(6 reviews)

5.8

@ahsan423

Hello, I specialize in developing end-to-end systems that seamlessly integrate hardware and software. For your QR code scanning solution, I will design a robust system incorporating the necessary hardware (QR scanner, display, speaker, Wi-Fi module) and integrate it with a cloud-based database. I will also develop secure APIs for efficient data exchange and build a user-friendly mobile app for real-time product display. My experience in IoT and embedded systems, especially with Raspberry Pi and Arduino, makes me well-suited for this project. I’ll guide you through the entire process, ensuring seamless integration and scalability. Let’s discuss the next steps! Warm regards, Ahsan

$500 USD in 7 days