Android NFC Tag Reader/Writer

@om26er

Hi I can implement nfc logic to your existing application, can you share your existing code so i can take a look. I am a Mobile Application Developer and have 8 years of experience as you can see my profile. I need to do a little research regarding your mentioned nfc but im super confident that i can do the job. let’s chat to proceed further

@softsolution2000

I am confident that my expertise in Java, Mobile App Development, iPhone, Android, and Mobile App Testing align perfectly with the requirements of the "Android NFC Tag Reader/Writer" project. With extensive experience in NFC-V and ISO15693 commands, I have successfully implemented similar functionalities in past projects. For the WRITE_SINGLE_BLOCK implementation, I would utilize Android's NfcV interface to write the pre-defined values to specific memory blocks efficiently. My estimated hours for this task fall within the 10-20 hours range, ensuring a timely delivery. I am ready to begin immediately and prioritize completing the project within the specified timeframe. 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.

@techplusintl

Hi there, ★★★ Mobile App Development / Android App Development Expert ★★★ 9+ Years of Experience ★★★ I will complete this project by implementing the required NFC read/write functionality in your Android app. The process will involve the following steps: 1. Review the provided Android Studio project and documentation (2 hours) 2. Implement the NFC write functionality to handle specific memory blocks (5 hours) 3. Implement the NFC read functionality to return UID and memory block content (5 hours) 4. Integrate the NFC functions into the existing UI (3 hours) 5. Conduct thorough testing on real devices to ensure reliability (5 hours) 6. Address any issues or bugs that arise during testing (3 hours) What I need from you: 1. Access to the full Android Studio project source 2. Wireframes and UI layouts 3. Backend API documentation 4. Exact memory block specifications for writing 5. Example values to write I look forward to connecting at your convenience to ensure the project's success. Best Regards, TechPlus Team

@dvcontact

Hello, Would you like me to build a working demo of the NFC read/write functionality integrated into your existing UI screens before you make any commitment—so you can see exactly how the ISO15693 commands will execute on your ST25DV04K tags? I have direct hands-on experience with NfcV, ISO15693 READ_SINGLE_BLOCK and WRITE_SINGLE_BLOCK commands, and have successfully implemented tag memory operations on real Android devices. Your 90% complete app needs only the NFC logic layer integrated into two screens—a focused, high-impact deliverable I can architect cleanly using Android's native NFC-V API with robust error handling for tag detection, write failures, and connection retries. Within 10–15 hours, I'll deliver production-ready read and write functions that return UIDs and memory block values directly to your backend integration. Let's schedule a brief call to review your project structure, confirm the exact memory block addresses, and discuss how I can start immediately with a working demo you can validate against your physical ST25 tags. Regards, Smith

@Arunmohan001

Hello, I have direct experience implementing ISO15693 and Android’s NfcV API, including READ_SINGLE_BLOCK and WRITE_SINGLE_BLOCK for block-level memory operations on NFC-V tags. I’ve built similar RFID features for industrial access systems where I handled UID extraction, block writes, retries, and error states with real hardware. For WRITE_SINGLE_BLOCK, I would open an NfcV connection, construct the command byte array (0x00, 0x21, block number, payload), transmit it, verify the response, and manage retries if the tag shifts. I estimate 12–16 hours and can start immediately.

@rbtech1984

RLSB1225 Hello There!!! ⚜⭐⭐⭐⭐⚜(( Android NFC-V / ISO15693 Expert for Fast Integration ))⚜⭐⭐⭐⭐⚜ I see you need the final NFC read/write functionality integrated into your nearly-complete Android app for STMicro ST25DV04K tags. The goal is precise ISO15693 memory block operations with robust handling for tag proximity and errors. I have hands-on experience with Android’s NfcV API, implementing READ_SINGLE_BLOCK and WRITE_SINGLE_BLOCK commands for ISO15693 tags, including ST25 series. I have built NFC solutions that read UID, manage retries, and safely write predefined values to tags for retail and access control projects. Key Deliverables: 1. NFC write function for four defined values with reliable error handling 2. NFC read function returning UID and memory block content 3. Seamless integration with existing UI (WRITE + READ buttons) I can complete this in 12–15 hours, test on real devices, and start immediately. This ensures a fast, accurate, and maintainable solution ready for your backend integration. Warm Regards, Farhin B.

@a4logic

Hello, RLSB1225 As a seasoned Android developer with a strong focus on mobile app development, I believe my skills and experience make me the ideal candidate for this particular NFC/ISO15693 project. I have extensive experience in utilizing Android's built-in NFC-V (NfcV) interface, ISO15693 READ_SINGLE_BLOCK (0x20) and WRITE_SINGLE_BLOCK (0x21) commands, as well as reading/writing to specific memory blocks - which aligns seamlessly with your project's requirements. In specific relation to this project, I have already worked on numerous projects that involved reading and writing NFC-V tags, an experience that will undoubtedly prove beneficial in delivering the results you're after. My familiarity with STMicro’s ST25 series is additional value for this job. You've rightly stated that this is not a learning project, hence it is crucial that the chosen freelancer understands all aspects of the work at hand. Given my substantial experience in precisely the areas you require, I am confident I could accomplish this task within your projected time frame of 10-20 hours without compromising quality – delivering robust code that handles all possible tag connection variations and contingencies. Thanks!

@Riasatali78

I can handle your project. I already have experience working with ISO15693/NfcV tags and using read/write block commands on Android. I’ll integrate reliable NFC-V reading and writing with proper error handling and return structured UID + block data exactly as you need.

@ykarora26

Hello, I develop mobile applications for Android & iOS using Flutter, React Native, and native technologies. My apps are user-friendly, stable, and aligned with modern UI/UX guidelines. My Expertise 1. Android (Kotlin/Java) & iOS (Swift) 2. Cross-platform apps with Flutter/React Native 3. API integration & backend connectivity 4. Payment gateways, maps, push notifications 5. Real-time features & social logins 6. App testing, deployment & maintenance Why Hire Me 1. High-quality UI/UX implementation 2. Smooth animations & optimized performance 3. Structured code & timely delivery 4. Full support after project completion Share your idea to get a full plan with timeline & cost. Best Regards' Yogesh

@toriquldev123

Hello Dear! I write to introduce myself. I'm Engineer Toriqul Islam. I was born and grew up in Bangladesh. I speak and write in English like native people. I am a B.S.C. Engineer of Computer Science & Engineering. I completed my graduation from Rajshahi University of Engineering & Technology ( RUET). I love to work on Web Design & Development project. Web Design & development: I am a full-stack web developer with more than 10 years of experience. My design Approach is Always Modern and simple, which attracts people towards it. I have built websites for a wide variety of industries. I have worked with a lot of companies and built astonishing websites. All Clients have good reviews about me. Client Satisfaction is my first Priority. Technologies We Use: Custom Websites Development Using ======>Full Stack Development. 1. HTML5 2. CSS3 3. Bootstrap4 4. jQuery 5. JavaScript 6. Angular JS 7. React JS 8. Node JS 9. WordPress 10. PHP 11. Ruby on Rails 12. MYSQL 13. Laravel 14. .Net 15. CodeIgniter 16. React Native 17. SQL / MySQL 18. Mobile app development 19. Python 20. MongoDB What you'll get? • Fully Responsive Website on All Devices • Reusable Components • Quick response • Clean, tested and documented code • Completely met deadlines and requirements • Clear communication You are cordially welcome to discuss your project. Thank You! Best Regards, Toriqul Islam

@TruongPT

Hi, I have much experience on Android and NFC communication. I have done similar project just before. I am confident that I can bring your idea to life.

@mykhaylob4

RLSB1225 ✋ Hi there. I can implement the NFC read/write functionality for your Android app using NfcV and ISO15693, completing the missing logic within your 7–10 day timeframe. ✔️ I have strong hands-on experience with Android NFC API and ISO15693 tags, including reading UIDs, accessing memory blocks, and writing specific values. Previously, I developed an app that read and wrote memory blocks on ISO15693 RFID tags for a rental equipment system, handling retries, exceptions, and backend integration. ✔️ For your project, I will implement the WRITE_SINGLE_BLOCK command to store the predefined values, read the UID and memory content using READ_SINGLE_BLOCK, handle errors like tag not detected or write failure, and integrate both functions into your existing UI screens with the WRITE and READ buttons. I will test thoroughly on real devices to ensure reliability. ✔️ I estimate 12–15 hours to complete the NFC integration, including testing and final adjustments. I can start immediately and provide a clean, well-commented code ready for deployment. Let’s chat so I can review your current project and finalize the implementation plan. Best regards, Mykhaylo

@domenicod7

✨✨✨ I AM DOMENICO ✨✨✨ I live and breathe Android NFC—ISO15693/NfcV is my playground. I’ve seamlessly read/write ST25/compatible tags using READ_SINGLE_BLOCK and WRITE_SINGLE_BLOCK, handling every tag hiccup in real-world testing. I’ll plug UID + memory block read/write into your UI flawlessly, with rock-solid error handling. 12–15 hours to perfection. I can start today and have this running in your hands within 7 days.

@draganm59

Hello Mate!Greetings Gln C., Good evening! I am skilled mobile coder with skills including Java, Mobile Development, Android, Mobile App Testing, Android App Development, Embedded Systems, Mobile App Development and iPhone. Please contact me to discuss more about this project. Best Regards

@yuliussmayoru

Hi, I already have this app and can show it to you immediately. If you need any additional features, I can implement them perfectly.

@AddonVisionInfo

RLSB1225 Hello, I am an Android NFC specialist with direct, hands-on experience in ISO15693/NfcV and specific projects involving STMicro ST25 tags. I can implement the missing read/write functionality for your ski app within the 10-20 hour timeframe. My Experience: I have built warehouse inventory systems requiring precise READ_SINGLE_BLOCK (0x20) and WRITE_SINGLE_BLOCK (0x21) commands to specific memory blocks on NfcV tags, similar to your requirement. I am proficient in handling tag connections, retries, and the Android NFC API flow. Implementation Plan: Write Function: I will implement the WRITE_SINGLE_BLOCK command to write the 4 pre-defined values (1000, 1001, 1010, 1100) to your specified memory block, including retry logic for the ~4cm range. Read Function: I will implement reading the UID and the stored block value using READ_SINGLE_BLOCK, returning the data to your existing UI. Integration & Error Handling: I will integrate these functions with your WRITE/READ buttons, adding robust handlers for tag detection failures, write errors, and connection loss. My Estimate: 12-15 hours for complete integration, testing, and delivery. I can begin immediately upon project award and deliver within 7 days.

@jagratip3

Dear Hiring Manager, RLSB1225 I’m applying for your Android NFC development requirement and can confidently deliver the ISO15693 / NfcV functionality needed to complete your app. I have direct hands-on experience working with NfcV, ISO15693 low-level commands, and read/write operations for memory-block–based RFID tags, including STMicro ST25 series and similar NFC-V chips. I have previously implemented READ_SINGLE_BLOCK (0x20) and WRITE_SINGLE_BLOCK (0x21) commands on commercial Android apps used for asset tracking, access control, and equipment validation. These projects required stable tag connection handling, retries for intermittent coupling, UID extraction, and writing structured data into defined memory blocks—making your requirements very familiar territory. For your app, I would implement the write workflow by connecting to NfcV using the tag’s UID, constructing the ISO15693 frame (flags + command + block address + 1-byte/2-byte payload), then issuing transceive(), validating the response, and triggering retries or error prompts when necessary. The read flow would follow the same approach, returning UID + the stored block value to your existing screen for backend submission. Your UI and app shell are already complete, so integrating the READ/WRITE buttons and returning the expected values will be straightforward. Based on the scope, I estimate 10–20 hours total and can begin immediately to meet your 7–10 day deadline. Sincerely,

@bhumia28

Hello With my extensive experience in Android App Development, particularly in Java, I'm confident that I am a great fit for your project. The core of my pitch lies in the fact that I have not only worked with NFC (including NfcV), which is a key requirement here, but also for ISO15693 and have hands-on experience reading/writing memory blocks on compatible RFID tags - skills that are indispensable for your project. I'm well aware of the project's specifics including programming in NfcV interface, utilizing ISO15693 READ_SINGLE_BLOCK and WRITE_SINGLE_BLOCK commands and mustering the art to both read/write to specific memory blocks. My competence extends into effective tag handling, systematic retries and exceptional cases - Fundamental components to secure optimal functionality. Best regards, Bhumi

@kirills31

Hey there, What are the specific challenges you've faced while integrating RFID read/write functionality for STMicro ST25DV04K tags in Android? How do you plan to ensure seamless communication with the NFC tags? I have extensive hands-on experience with Android NFC development, including NfcV and ISO15693 commands. One of the most challenging aspects of this project is implementing the read/write logic for specific memory blocks on the RFID tags. I propose a systematic approach that involves thorough testing on real devices to ensure reliability. I look forward to discussing more details on chat. Best, Kyrylo Design an engaging question about the project's details to involve the client, tone should be professional