Ble beacon firmware trabalhos

Looking for an experienced embedded systems developer to assist with bringing an existing prototype to market. More information will be provided on request but broadly speaking current prototype is based on a series of ESP32 modules using ESP-IDF. We're seeking a developer/engineer experienced in PCB design and firmware development on the ESP32 platform with particular experience on fine-grained optimisation of memory management.

I'm in need of an experienced professional in C/C++ who can assist with firmware modification. Key Requirements: - Experienced in C/C++ - Prior experience with firmware modification is a plus but not mandatory - Familiarity with embedded systems The project will involve making modifications to the firmware, ensuring that the changes are stable, efficient, and compatible with the hardware. You should be able to work independently based on the requirements provided. Prior experience in firmware modification will be an added advantage. Please provide examples of similar work you've done in the past.

I need an experienced firmware engineer to work with the Nordic nRF52833 chip and handle Bluetooth Low Energy (BLE) functionality. Key Responsibilities: - Develop and implement BLE functionality for data transmission to smartphones - Advanced PCB design skills are also a must for this project Ideal Skills and Experience: - Proficiency in Nordic nRF52833, BLE development, and PCB designing - A proven track record of implementing successful BLE capabilities for data transmission to smartphones - PCB designing experience at an advanced level Please note that this project requires a deep understanding of both firmware development and PCB design. Experience with similar projects will be considered a significant advantage. Your ability to deliver hig...

As an android developer with experience in building BLE (Bluetooth Low Energy) compatible apps, I'm looking for someone who would further enhance the functionalities of my application. Key features required: - User login and registration: Devise a secure and efficient way for app users to sign up and log in. - Push notifications: Incorporate a system that updates users with relevant notifications. - In-app purchases: Embed a seamless and trustworthy payment structure within the app for purchases. BLE Functionality: - The Android app must include BLE technology for it to connect to smart meters. As such, proficiency in this area is a must have. Experience in developing similar apps that utilize BLE for smart devices would be highly beneficial to the pro...

...experienced Flutter developer to integrate Bluetooth Low Energy (BLE) scanning and WiFi configurations into a cross-platform mobile application. Requirements: - Cross-platform compatibility: The application should operate seamlessly on both Android and iOS. - BLE Functionality: The app should be able to scan for and connect to BLE devices, prioritizing a specific custom BLE device. - WiFi Configurations: The developer should also build functionalities that will enable the app to connect and configure WiFi. Ideal Skills and Experiences: - An expert level of knowledge and practical experience with the Flutter framework is critical for this role. - A deep understanding of utilizing BLE technologies, particularly with custom BLE devices. ...

...since 1997. We have the most advanced electric automation technologies in South Korea. We are welcoming you who want to be a part of leading the global electric automation devices market. You may visit our company website here for more information: Opportunity type: • Full Time/Part Time: Full-Time • Project Only Hire: No • Visa Sponsorship Available Firmware Team: Developing Linux application [Main Responsibilities] • Embedded Linux • Linux applications (such as IEC 61850 communication stack, PTP stack, etc.) • Test & Debugging the above [Required Experience and Qualifications] • Education: Above Undergrads. (Including community college) If you are a foreigner, above the master. • Experience: Above 3 years of experienc...

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

...experienced Flutter developer to integrate Bluetooth Low Energy (BLE) scanning and WiFi configurations into a cross-platform mobile application. Requirements: - Cross-platform compatibility: The application should operate seamlessly on both Android and iOS. - BLE Functionality: The app should be able to scan for and connect to BLE devices, prioritizing a specific custom BLE device. - WiFi Configurations: The developer should also build functionalities that will enable the app to connect and configure WiFi. Ideal Skills and Experiences: - An expert level of knowledge and practical experience with the Flutter framework is critical for this role. - A deep understanding of utilizing BLE technologies, particularly with custom BLE devices. ...

I'm looking for a skilled Flutter developer with experience in developing mobile apps that use Bluetooth Low Energy (BLE) connectivity. The app will be responsible for connecting with a range of smart health products. Key Requirements: - Experience with Flutter: We need someone who is proficient with Flutter and can develop a mobile app from scratch. - BLE Connectivity: The app will be communicating with health devices using BLE. You should have prior experience in handling BLE communications. - Health Devices: The app will be used to connect with blood pressure monitors, ECG, stethoscope, SPO2, and temperature monitors. Knowledge about how these devices operate and collect data would be beneficial. Functionality: - Data Collection: The main purpose of t...

...indoor navigation system specifically for Android. The key task at hand is the creation of a function providing turn-by-turn instructions with voice directions. The Google Text-To-Speech engine should be implemented for these voice directions. This system employs BLE technology to pinpoint the user's location and suggest the quickest route to their desired destination. Ideal Skills: - Proficiency in Flutter development - Experience of working with indoor navigation systems - Prior usage of Google Text-To-Speech engine - Knowledge of BLE Technology Your task will primarily include: - Developing a function for turn-by-turn instructions - Integrating Google Text-To-Speech engine for voice directions - Testing the functionality to ensure accuracy and efficiency In su...

I need a skilled developer to create a BLE Beacon transmitter for both iOS and Android. The primary goal of this application is asset tracking. This means it needs to be able to run in the background, even when the app is not actively being used by the user. Key Requirements: - Create a BLE Beacon transmitter for iOS and Android - The application must primarily be built for asset tracking - The BLE Beacon should operate in the background at all times Ideal candidate: - Extensive experience in developing BLE Beacon transmitters - Proficiency in both iOS and Android development - Previous projects related to asset tracking would be highly beneficial. - Strong understanding of background processes.

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I'm in need of an experienced DMX/RDM firmware engineer to help me troubleshoot and fix the RDM functionality in my current controller using ESP32. The controller is slave, will get command signal from a DMX/RDM Master to control strip led. Here's a summary of what I need done: - Troubleshooting: My current DMX code is functioning as expected, however, I'm facing challenges with the RDM protocol. I've tried debugging the issue myself, but have been unsuccessful. I need someone with a deep understanding of RDM to identify and fix the problem. The ideal candidate for this project would have: - Proficient in C/C++: My firmware for the controller is written in C/C++. It's crucial that you have strong experience in this language. - Extensive RDM knowl...

I need an Android application developer with experience in Bluetooth BLE device interfaces. This application will pair with a smart meter, so you should be comfortable working with this type of device. Key Features Required: - Bluetooth device pairing: You will be responsible for the development and integration of a Bluetooth pairing feature. The application needs to communicate seamlessly with a smart meter. - Real-time data monitoring: The application should have the ability to monitor data from the smart meter in real-time and incorporate effective data visualization methods. Specific Display Requirements: - Numeric values: For utmost clarity, the application needs to display the data gathered from the smart meter numerically. - Alert notifications: The application should be c...

PCB design for a scale with a 4G module to send results to WebServer using HTTP Post. Circuit is intended to be powered from battery with a support of solar panel. MCU will STM32 and 4G GSM module will using SIM7000

...project as follow : A-the part we already done and proven its functionality : 1-the wheelchair are driven by dual DC motors and power with 24 volt battery. the dc motor and the mechanical part of the wheelchair already manufactured and tested. B- the part we need you to accomplished with industrial standers : 1- the complete schematic ,BCP and the manufacturing Gerber file . 2- the complete firmware code. information about the unit : 1-we had a joystick with driver that can help interesting candidate for reverse engineer. the dc motor does not contain any external sensors , the dc motors contains electric brake similer to any dc motor of wheelchair ,there is a close loop system using BEMF ,and current resistor to accomplish Smoothness and accuracy movement. 2- the joyst...

...ESP32-S3 - The design should be optimized for a multi-layer board (two layer if possible) - The board will need to integrate microcontrollers, an ePaper display, and power management components - Experience in designing PCBs for prototyping required - Currently the design uses a TTL connection for uploading firmware Your tasks will include: - Understanding the project requirements and goals - Make necessary updates to design files - Assist software (firmware) team in loading/executing firmware (Arduino IDE) - Designing a multi-layer PCB layout that meets the specified criteria - Ensuring that the board is optimized for the intended use as a prototype - Providing necessary documentation for manufacturing and assembly Ideal Skills and Experience: - Proficient in PC...

I'm in need of someone who can skillfully tweak my OKI C711 laser printer for roll-to-roll printing. Now max lenght print is optional 1,3m paper, we want up to 150meters, print repeatable images. I don´t know if it´s firmware/software, new hardware or both. to make it print on continuos media from multitpurpose tray. Who can help with this task please respond me!

Title: Demystifying Bitcoin: A Comprehensive Guide to the World's Leading Cryptocurrency In the realm of digital currencies, Bitcoin stands as the pioneer, the trailblazer that sparked a global financial revolution. Born out of a white paper titled "Bitcoin: A Peer-to-Peer ...technology, and the future of finance. In conclusion, Bitcoin represents more than just a digital currency; it embodies a paradigm shift towards a more decentralized, transparent, and inclusive financial system. Whether you're a seasoned investor, a curious bystander, or a skeptic, Bitcoin's impact on the world cannot be ignored. As we navigate the complexities of the digital age, Bitcoin stands as a beacon of hope and innovation, challenging the status quo and paving the way for a more eq...

Title: Demystifying Bitcoin: A Comprehensive Guide to the World's Leading Cryptocurrency In the realm of digital currencies, Bitcoin stands as the pioneer, the trailblazer that sparked a global financial revolution. Born out of a white paper titled "Bitcoin: A Peer-to-Peer ...technology, and the future of finance. In conclusion, Bitcoin represents more than just a digital currency; it embodies a paradigm shift towards a more decentralized, transparent, and inclusive financial system. Whether you're a seasoned investor, a curious bystander, or a skeptic, Bitcoin's impact on the world cannot be ignored. As we navigate the complexities of the digital age, Bitcoin stands as a beacon of hope and innovation, challenging the status quo and paving the way for a more eq...

...versión para IOS (Ipad). En estos videos se puede ver el funcionamiento de la app actual: La app tiene un funcionamiento básico, Actualmente solo dispone de una pantalla dividida en 6 zonas. En cada una de ellas el usuario puede cargar una foto y/o sonido desde su dispositivo. Esta app conecta por bluetooth BLE con un hardware basado en el controlador ESP32 Por favor, solo coticen profesionales con experiencia contrastable en este campo y queremos claridad sobre lo que incluye su oferta y lo que no. Buscamos empresa con la que hacer una colaboración a largo plazo. Solo atendemos ofertas de profesionales que hablen español....

...efficiency. • Last Mile Connectivity: Specialized in providing last-mile fiber connectivity, whether through aerial or underground routes, ensuring robust connections for Business, Enterprise, and SMB customers to nearby Points of Presence (POPs) through linear or protected paths (ring). • ONT/MDU Installation and Commissioning: Skilled in the deployment of ONT/MDU units, routers, firewalls, and firmware upgrades, coupled with thorough service testing to guarantee optimal functionality. • Optical Fiber Expertise: Proficiency in optical fiber splicing, pigtel termination in ODU/FDH/FMS, optical power measurement, and labeling, ensuring precision and reliability in network infrastructure. • Maintenance and Testing: Expertise in conducting fiber patching, link sh...

I am looking for someone skilled in the field of STM32 programming, with expertise on Wiz5500. We already have a working firmware running on our custom PCB that uses the Wiz5500 to display a web page with basic interfaces. The project consists in modifying that firmware to integrate two new features : 1) After sending data from webpage to mcu, we cannot use the web browser refresh button because it re-sends the data again. We want to fix this by either re-directing automatically to the main webpage after sending data or some other way you can propose. 2) We want to synchronize the mcu with the local time. This can be done by synchronizing with the NTP server or some other way you can propose. We would like the webpage to keep working during the synchronization with NT...

I'm seeking an expert Android app developer for the creation of a mobile application focused on Bluetooth Beacon (BT Beacon) functionality. Your primary task will involve: - Designing and developing an Android app from scratch. - Implementing BT Beacon technology impeccably into the app's functionality. Ideal candidates for this project should have: - Deep knowledge and proven experience in Android app development. - Previous experience working with BT Beacon technology. - Strong understanding of user-interface design for mobile devices. - Ability to communicate complex technical issues succinctly and clearly. I look forward to your imaginative solutions in incorporating Bluetooth Beacon effectively into our app!

I'm in need of an ESP32 BLE application that can be controlled remotely. The platform for the user interaction will be Arduino ESP32. Key Requirements: - Client/Server Architecture: This application should have a client/server structure. - Bidirectional Communication: The application should support both reading and writing data. - Multiple Device Control: The application should be capable of controlling between 1-5 different devices. The ideal freelancer for this project should have: - Strong experience with ESP32 and Bluetooth Low Energy. - Proficiency in developing applications for Arduino ESP32. - Proven track record of building client/server applications. - Excellent communication skills to understand the specific requirements of this project.

We're seeking an individual who can help develop a BLDC motor circuit (with IR / RF) also capable of re...capable of reverse engineering and conducting comprehensive analyses of each component and functionality, and redesigning them to improve performance and efficiency, someone who can design a working PoC and demonstrate their mastery of the redesigned circuit. - Multi-layer PCB Design - Reverse Engineering - Extensive knowledge of Digital Electronics - Experience working with brushless motors. - Firmware development/coding skills (c, c++, assembly or similar skills) - working knowledge of multiple ICs Once the project is completed, along with the BOM file and GARBER file, the PoC project also has to be submitted. IMP: Freelancers must sign an NDA before beginning to work ...

I need a proficient developer to conceptualize and build a Real Time Location System (RTLS) utilizing the DWM3000 device. This p...factor this into your project plan and costing. - Implement specific RTLS features: The system should have capabilities for allocating distance measurement between devices and particularly focus on indoor positioning. - Web browser compatibility: The RTLS should be operational on all standard web browsers. Ideal Skills: - Experience in DWM3000 or related device - Proficiency in Bluetooth firmware development, nrf devices and SDK - Familiarity with real time location tracking applications - Strong understanding of indoor positioning systems Candidates with a more comprehensive understanding of the DWM3000 device and real time tracking systems will b...

This project consist of following phases for its prototype development. Phase 1. Hardware Design 1. Schematic design 2. PCB Design 3. BOM (Bill of material) , PCB Gerber 4. PCB Fabrication 5. Components/Part procurement 6. PCB assembly Phase 2. Firmware/Code development and PCB testing Deliverables will be as given below: 1. Source PCB files 2. PCB Geber 3. BOM (Bill of material) 4. Source firmware 5. One working Prototype

We're seeking an individual who can help develop a BLDC motor circui...capable of reverse engineering and conducting comprehensive analyses of each component and functionality, and redesigning them to improve performance and efficiency, someone who can design a working PoC and demonstrate their mastery of the redesigned circuit. - Multi-layer PCB Design - Reverse Engineering - Extensive knowledge of Digital Electronics - Experience working with brushless motors. - Firmware development/coding skills (c, c++, assembly or similar skills) - working knowledge of multiple IC's Once the project is completed, along with the BOM file and GARBER file, PoC project also has to be submitted. IMP: Freelancer must sign an NDA before begin working on the project. (removed by F...

...either BLE or classic, as I am not entirely certain which one this module uses. - Once connected, the app should be capable of receiving sensor and pin status data. - The app should store this received data in a local CSV file on the mobile device for later access. - A simple and functional user interface would fit best for this application. I do not need aesthetic elements or interactive features. - the data will be sent at intervals determined by the esp32 (either every 500-1000ms or when a promt is reached) so the app should either display the data in real time and allow saving .. or it could store in realtime if that doesnt cause an issue) Ideal Skills & Experience: - Proficient in both Android and iOS app development - A firm grasp of Bluetooth connection protocols, sp...

I have an existing Arduino code which requires modification for converting my Bluetooth to BLE compatible for iOS applications. Your responsibility will be to: - Modify the existing Arduino code to make it BLE compatible - AS optional Create an iOS application with a control interface feature. The application should allow users to control and manage a customized smart lock model. Ideal Skills: - Expertise in Arduino code modification - Proven experience in developing BLE compatible software - Proficient in iOS application development, particularly in creating control interfaces - Familiarity with smart lock functionalities would be a bonus. Your services will be reviewed for potential system upgrading needs, hence, I'm interested in individuals who have a pr...

I'm in need of a Standalone STM32 SWD programmer that can flash firmware without the need for connection to a computer. The programmer should be powered by a battery. The binary firmware files will be on a SD card with an XML file with the processor type to prevent it being loaded on an incorrect processor. The unit will have buttons and LED's to start the process and indicate the progress and supply 3.3v to the processor board There a number of projects on github that could be used as a starting point such as Key Requirements: - Stand-alone Programming: The system should be capable of flashing firmware into STM 32 microcontrollers without the need for a computer connection. - Battery Powered: I require the programmer to be powered by a battery. Ideal

I'm in need of a skilled software developer to create a custom embedded firmware for my electronic products. The firmware should provide a robust and efficient foundation for the functioning of these custom electronics. Key Requirements: - The firmware is required to be designed for custom built electronic products, not for standard commercial devices. - The firmware must be capable of working with specific hardware components to ensure seamless compatibility and functionality. Ideal Skills and Experience: - Proficiency in embedded software development - Prior experience in creating custom firmware for electronic devices - Familiarity with working on a project with specific hardware requirements Please share your relevant experience and sample wor...

I urgently require a tech wizard to install Binwalk on my Windows 11 PC. The expert on the other end should be proficient in setting up software on different versions of Windows and, ideally, have experience with Binwalk. Need it for firmware extraction and other tasks. Key Objectives: - Successful installation of Binwalk - Ensure flawless operation of Binwalk on my PC Ideal Skills: - Prior experience with Binwalk - Knowledge of various Windows OS versions. Given I need this completed ASAP, a swift and efficient service is necessary.

I need a proficient software developer familiar with Python and Bitcoin ASIC miners. The core functionality of this software is to control and monitor miner status, including Hashrate, Temperature, and Uptime. Key Skills/Experience: - Extensive understanding of Python - Familiarity with Luxor firmware and pool APIs - Hands-on experience with Bitcoin ASIC miners' processes Scope: - Develop a software application that interfaces with Luxor firmware and pool APIs - Implement functionality to monitor miner status, specifically Hashrate, Temperature, and Uptime - Configure wifi/LAN port of the development board (banana pi r2 pro) - Integrate external temperature sensors and relay control (hardware interfacing is completed already) The complete boot/control/satefy logic ar...

As a business deeply entrenched in tech, we're in need of a skilled C++ Developer who specializes in native cross-platform MCUs firmware and software development. Our ideal candidate would primarily help us develop a Windows, Linux, and macOS compatible monitoring system, specifically for voltage. The goal is to create a GUI application with specific features. These include: - Real-time monitoring - Graphical representation - Data logging - GPIO MCU ON/OFF control - Voltage and current real-time transfer to PC via USB-connected MCU SAMD21 This calls for not only proficiency in GUI application development, but also a demonstrated understanding of working with real-time data transfer systems. Real-time voltage monitoring and the know-how of system-level development will be cr...

I need a seasoned QNX system expert to address booting issues with my SBCs. My QNX based single-board computers (SBCs) are unable to start and unfortunately, no error messages or r...unable to start and unfortunately, no error messages or reports are generated for further analysis. Key points for potential freelancers: - Experience with QNX systems is imperative, especially deep knowledge about their booting processes. - Background in problem identification with systems that don't generate adequate error logs. - Proven troubleshooting skills with a focus on hardware and firmware interaction. The ideal freelancer will be able to make locating the central issue and offering a robust solution efficiently. I look forward to detailed discussions on your approaches and previous si...

I am in need of a proficient research paper writer with extensive knowledge in Internet of Things (IoT), artificial intelligence, machine learning and asset tracking. The subject matter of the research paper will be indoor asset tracking focusing on: - Under...assets, both powered and non-powered - Various applications and practical examples to demonstrate efficiency Key Skills Required: - Proficient in research work and formal writing - Comprehensive understanding of IoT, AI and ML - Background in inventory management, efficiency and optimization - Familiarity with asset tracking, both powered and non-powered. - Understanding about ble beacons, tags, fingerprinting, ble + lira trackers, lorawan gateway devices - Understanding of Triangulation and Trilateration - prof...

I am looking for an experienced freelancer to develop custom firmware for a specific DMA card model, PCILeech (CaptainDMA). The firmware needs to be compatible with EAC, BE, Faceit, and Vanguard anti-cheats. Requirements and Features: - I am open to suggestions for specific requirements and features for the firmware. - The firmware should be optimized for gaming purposes. Ideal Skills and Experience: - Strong knowledge and experience in developing custom firmware for DMA cards, specifically PCILeech (CaptainDMA). - Familiarity with EAC, BE, Faceit, and Vanguard anti-cheats. - Understanding of gaming requirements and optimizations for firmware development. If you have the skills and experience required for this project, please submit your propos...

I'm looking for a talented professional who has experience in designing LCD displays Modules, specifically for automotive dashboard use. The display I need is in the medium size range (3 to 7 inches) segmented HTN...medium size range (3 to 7 inches) segmented HTN/FSTN technology. The critical feature that sets this project apart is the BOM cost of the final product should be very Low without compromising on the quality. Skills and experience that would be ideal for this project include: - Strong background in LCD module circuit design, especially for automotive purposes - Low cost circuit design expertise - Firmware design, C programming , Microcontroller selection etc This is a great opportunity to showcase your skills, and contribute to a product that blends innovation an...

I am looking for a freelancer who is experienced in embedded code, specifically Arduino. I have a specific project in mind that requires the use of embedded code. Skills and Experience Required: - Proficiency in Arduino programming - Strong knowledge of embedded code development - Experience in working on projects involving Arduino and RS485 Modbus protocol Refer the datasheet attached if needed The purpose of the project is not specified.

I'm in need of a professional to help me design and write firmware for a hoverboard. I want to write hack frimware and allow me to control from arduino or controler i need help using team view / remote control

Seeking a professional with extensive knowledge in Arduino programming for creating a firmware for STM chips in stm32duino or superior, optimized for ESP32, aimed at reading data from NFC tags. The perfect candidate should display: - Proficiency in Arduino - Familiarity with ST25R3911 NFC chipsets and NFC tag operations - Previous experience programming firmware for STM chips - Understanding of data reading process Your responsibility will be to design, develop and test the firmware ensuring the functionality of reading data from NFC tags is seamless and efficient.

...with experience with CM/LineageOS to building a custom-rom/firmware Project Details: - device is based on MT6580A - current firmware is only available as binary and working in 98% of cases - we need to improve it, but vendor does not exist anymore - I need to recreate from scratch the firmware with Google's Android sources and with mediatek drivers around it. We can share you a fresh Ubuntu 22.04 or any other Ubuntu version required on a system to run the code. It is required to have multiple years of experience with Android Firmware development and packaging for Android Watch If you have also experience in Android Watch / WearOS Firmware development, particularly with Android Wear OS, I would

I need an embedded firmware C specialist in IoT to offer expertise on a project featuring a wearable device by enhancing/debugging our current code base. Key Requirements: - Implement and enhance the device's capability for LTE, Wifi, Bluetooth Low Energy (BLE) and Global Navigation Satellite System (GNSS). These components are vital for the functionality of this advanced wearable device for pets. Deliverables: --Enable the device to continue to be used if in range of Wi-Fi/BLE and not LTE -To transition workflow away from one cloud broker to another -Refactor GNSS calls on the device -Retrieve RSSI/RSRP information from cell modem of the device Ideal Skills: - Proficiency in IoT applications, particularly regarding network and satellite technologies. - ...

...application via Bluetooth Low Energy (BLE). Allow for configuration and interaction with the pressure sensors through the mobile app (optional). Key Requirements: Expertise in nRF52840 DK development, including sensor interfacing, BLE communication, and low-power programming. Strong understanding of pressure sensor selection and integration for accurate and reliable pressure readings. Experience with mobile app development for BLE communication (Android or iOS) is a plus. Familiarity with power optimization techniques for extended battery life in embedded systems. Excellent communication and collaboration skills. Deliverables: Fully functional pressure sensor system using the nRF52840 DK and chosen pressure sensors. Well-documented source code for the nRF52840 DK ...

I'm looking for a skilled developer to create firmware for a very specific ASIC Chip Model. Key Responsibilities: - Developing firmware specifically for mining capabilities - Proficiency in C and Python programming languages - Experience working with ASIC systems is preferred - Adapting firmware to ensure it runs smoothly and efficiently on specified hardware Your expertise in ASIC firmware development, mining algorithms, and C/Python programming is crucial for the successful completion of this project.

I'm in need of a firmware upgrade for IoT devices, specifically those powered by Mediatek helio a20 or snapdragon 4 gen 1.

I need to develop a small Digitizer Tablet (hardware & firmware) with a size of about 9cm x 15cm. I need to contact with someone that has done this sort of software/hardware developments for further details. The digitizer would send the vector data by BLE Bluetooth to a smart phone. Thanks!