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Need to add support to a rugged gauge computer so it can process measurements coming from Bluetooth-enabled calipers, micrometers, dial indicators and similar tools. The hardware uses a TechNexion PICO-IMX6U SOM (MAUI app running on custom embedded Android 9) and an STM32G473QCT6 microcontroller that interfaces with a variety of analog and digital sensors. Deliverables • Interface to establish BLE connections and process the stream of measurements. • Customizations to the embedded Android system. • Changes to the STM32 firmware (if needed).
ID Projek: 40334572
53 cadangan
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Aktif 18 hari yang lalu
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53 pekerja bebas membida secara purata $34 USD/jam untuk pekerjaan ini

Hello, As an avid technophile /geek and a member of Live Experts LLC, with extensive experience in Android Bluetooth Low Energy (BLE) Integration, Embedded Systems, microcontrollers etc., I am confident that my team and I are the perfect fit for your project. Over the years, we have successfully taken on and delivered complex projects similar to yours. For your Bluetooth integration project, our proven competence in Android programming and proficiency with STM32F hal libraries will enable us to create a seamless interface between your rugged gauge computer and BLE-enabled instruments. In addition, our sound knowledge of signal processing will ensure accurate measurements, enhancing your system's efficiency. Our commitment to quality and customer satisfaction ensures that we don't just meet project requirements; we deliver value-added solutions. And that's why we delve deep into each project to not only complete it perfectly but also optimize it with additional features like the customizations to the embedded testing system you require. So let's make a move & make this project happen together- contact me today! Thanks!
$50 USD dalam 820 hari
8.4
8.4

With over a decade of experience in web and mobile development, I understand the importance of adding Bluetooth support to your industrial gauge. Your project requires seamless integration with Bluetooth-enabled tools, which aligns perfectly with my expertise in creating tailored solutions for diverse hardware configurations. In my past projects, I have successfully developed custom solutions for industries like fintech, eCommerce, and blockchain, delivering tangible results that meet and exceed client expectations. My extensive experience in building scalable and feature-rich applications ensures that your Bluetooth support for the industrial gauge will be implemented with precision and efficiency. If you're ready to enhance your gauge computer with Bluetooth capabilities, I am here to help. Let's discuss how we can collaborate to achieve your project goals and deliver a solution that empowers your operations.
$40 USD dalam 15 hari
8.0
8.0

Hi, This is Elias from Miami. I checked your project description and understand you need to extend an existing rugged gauge computer so it can receive and process measurements from BLE-enabled calipers, micrometers, dial indicators, and similar tools. The main work seems to be adding stable BLE communication into the embedded Android 9 / MAUI stack, handling measurement parsing reliably, and making any STM32 firmware adjustments only where the current hardware flow requires it. My approach would be to review the current Android-to-STM32 architecture first, add a clean BLE device layer for pairing and streaming measurements, define a parser/normalization flow for different tool types, and then update the embedded Android or STM32 side only where needed to keep the integration robust. I’d be happy to go through the details and suggest the best technical approach. I have a few questions to get a better understanding: Q1 – Do the Bluetooth measuring tools follow standard BLE GATT profiles, or are some of them using vendor-specific protocols that need custom parsing? Q2 – Is the MAUI app already receiving measurement data from the STM32 today, or will BLE measurements bypass the microcontroller and go directly through Android? Q3 – For phase 1, do you want support for a fixed list of specific tool models first, or a broader BLE framework that can be extended tool by tool? Looking forward to hearing from you.
$50 USD dalam 40 hari
7.7
7.7

Hello! I understand you need to add Bluetooth support to your rugged gauge system so it can receive measurement data from Bluetooth-enabled tools like calipers and micrometers. Your setup includes a TechNexion PICO-IMX6U SOM running a custom Android 9 app and an STM32G473QCT6 microcontroller managing analog and digital sensors. My approach would be to first create a stable BLE connection interface in your Android app to handle the measurement data streaming efficiently. Then, I'll check the STM32 firmware to see if any updates are needed to support this new data flow, ensuring smooth integration across hardware and software. I'll also handle the necessary Android system changes to maintain performance and reliability. What Bluetooth profiles and data formats do your calipers and micrometers use for transmitting measurements? Do you have any existing code or libraries for handling BLE connections in your current Android app? Are there timing or latency requirements for processing measurement data that I should be aware of? Do you expect to connect multiple Bluetooth devices simultaneously or just one at a time? Would you need any form of calibration or error checking implemented as part of this Bluetooth data integration? Looking forward to working with you. Best regards,
$25 USD dalam 39 hari
7.3
7.3

Dear , We carefully studied the description of your project and we can confirm that we understand your needs and are also interested in your project. Our team has the necessary resources to start your project as soon as possible and complete it in a very short time. We are 25 years in this business and our technical specialists have strong experience in Electronics, Android, Microcontroller, Software Development, Bluetooth Low Energy (BLE), Bluetooth, Embedded Systems, Signal Processing, STM32, Android App Development and other technologies relevant to your project. Please, review our profile https://www.freelancer.com/u/tangramua where you can find detailed information about our company, our portfolio, and the client's recent reviews. Please contact us via Freelancer Chat to discuss your project in details. Best regards, Sales department Tangram Canada Inc.
$30 USD dalam 5 hari
7.0
7.0

Hi there To reliably “process measurements coming from Bluetooth-enabled calipers, micrometers, dial indicators,” the most critical part is building a stable BLE communication layer that can handle continuous data streams without drops or delays. I’ll approach this by implementing a robust BLE interface on Android (GATT handling, reconnect logic), and aligning the data pipeline with the STM32 so measurements are parsed and synchronized correctly across both layers. This ensures accurate, real-time readings even in industrial environments. This means I understand how to bridge embedded Android systems with microcontroller firmware while keeping performance predictable and stable. My process is simple: Profile BLE devices and define data formats Implement Android BLE service and streaming pipeline Align STM32 firmware (if needed), then validate with real hardware I’m ready to begin with BLE device profiling and connection layer setup, then move into real-time data handling..
$50 USD dalam 40 hari
6.5
6.5

Connecting BLE-enabled calipers and micrometers to a PICO-IMX6U requires more than just a standard pairing. The real challenge is managing the measurement stream latency between the STM32G473 and the Android 9 layer to ensure the rugged gauge displays real-time data without lag. I recommend implementing a dedicated GATT profile handler on the Android side that talks directly to your MAUI app via a high-priority service. If the STM32 acts as the bridge, we should optimize the UART or SPI interrupt routine to prioritize sensor data packets, ensuring the Bluetooth stream doesn't bottleneck the existing analog inputs. I am available to chat if you are interested.
$40 USD dalam 40 hari
6.2
6.2

Hello There!!! ★★★★ (Adding Bluetooth measurement support for rugged industrial gauges) ★★★★ Project understanding: You need your rugged gauge computer to process measurements from Bluetooth calipers, micrometers, and dial indicators. This includes BLE connections on your MAUI Android app, possible STM32 firmware updates, and custom embedded Android tweaks. ⚜ Implement BLE interface for measurement streaming ⚜ Integrate Bluetooth data with MAUI Android app ⚜ Firmware adjustments on STM32 microcontroller if needed ⚜ Customizations to embedded Android 9 system ⚜ Signal processing for analog and digital sensors ⚜ Testing and validation of measurement accuracy ⚜ Documentation of all changes and integration steps I have experience with BLE, STM32, embedded Android systems, and sensor integration. I’ll ensure seamless data flow, reliable measurement capture, and a fully functional interface with your gauge. Warm Regards, Farhin B.
$25 USD dalam 40 hari
6.3
6.3

Hi, how are you doing? I went through your project description and I can help you in your project. your project requirements perfectly match my expertise. We are a team of Electrical and Electronics engineers, we have successfully completed 1000+ Projects for multiple regular clients from OMAN, UK, USA, Australia, Canada, France, Germany, Lebanon and many other countries. We are providing our services in following areas: Antenna Design (CST, HFSS) Embedded C Programming. VHDL/Verilog, Quartus/Vivado, LabVIEW/ Multisim/PSPICE/VLSI MATLAB/SIMULINK Network Simulator NS2/NS3 Microcontroller like Arduino, Raspberry Pi, FPGA, AVR, PIC, STM32 and ESP32. IDEs like Keil MDK V5, ATmel studio and MPLab XC8. PLCs / SCADA PCB Designing Proteus, Eagle, KiCAD and Altium IOT Technologies like Ethernet, GSM GPRS. HTTP Restful APIs connection for IOT Communications. Also, we have good command over report writing, I can show you many samples of our previous reports. Kindly consider us for your project and text me so that we can further discuss specifically about your project's main goals and requirements.
$38 USD dalam 40 hari
5.9
5.9

Hi, I can add Bluetooth LE support to your rugged gauge computer, enabling seamless measurement streaming from calipers, micrometers, and dial indicators. MY APPROACH - Implement BLE connectivity on the STM32G473 to act as a central device, scanning, pairing, and maintaining stable connections with multiple Bluetooth-enabled tools. - Develop a robust data parser to decode measurement streams from various tool manufacturers (Mitutoyo, TESA, etc.), handling different BLE profiles and packet structures. - Modify the embedded Android 9 system to receive parsed measurements via UART/USB from the STM32, integrating them into your MAUI app's existing sensor framework. - Update STM32 firmware (if needed) to manage BLE buffer handling, error recovery, and real-time data forwarding to the main CPU. DELIVERABLES STM32G473 BLE Firmware: Central-mode connection manager and data decoder. Android System Customizations: HAL/service layer to process incoming measurements. Integration Guide: Wiring, protocols, and test procedures for validation. EXPERIENCE I have extensive experience with embedded Android systems, STM32 Bluetooth stacks, and industrial metrology tool integration. TO START Do you have a list of specific tool models (make/protocol) to support initially? Is the STM32 already running FreeRTOS or bare-metal? Any existing BLE libraries in use (e.g., STM32_WPAN)? I am Ready to begin firmware development immediately.
$25 USD dalam 40 hari
5.9
5.9

Hi, I am Yaroslav, a senior embedded systems engineer with 10+ years of experience delivering BLE-enabled measurement and control platforms on embedded Linux/Android and STM32-class MCUs. I have implemented BLE data pipelines for industrial tools (calipers, gauges, sensors) achieving <50 ms end-to-end latency and >99.9% packet reliability, and delivered 15+ production designs involving STM32 firmware and Android HAL/custom services. Approach ✅ I will design a BLE GATT client layer on Android (JNI/NDK where needed) to manage multi-device pairing, streaming, parsing vendor-specific measurement profiles, and exposing a stable API to the MAUI app. ✅ I will customize the Android 9 system (Bluetooth stack tuning, background services, permission model, power management) to ensure persistent low-latency connections and deterministic data handling. ✅ I will review and extend STM32G473 firmware (UART/SPI bridging, timestamping, buffering, CRC validation) to synchronize external sensor inputs with BLE measurements if hybrid acquisition is required. Questions ✅ I need to confirm which BLE profiles/protocols your instruments use (standard GATT vs proprietary) and whether sample data frames/specifications are available. ✅ I need to understand expected device concurrency, data rates, and whether the STM32 must act as a co-processor for preprocessing or only as a sensor interface. Best, Yaroslav
$44 USD dalam 40 hari
4.7
4.7

Hi, As a certified U.S.-based electronics and embedded firmware engineer, I specialize in integrating complex sensor ecosystems with embedded Linux/Android platforms and real-time microcontroller systems. I can develop a robust BLE interface on your TechNexion PICO-IMX6U platform to reliably connect with Bluetooth-enabled calipers, micrometers, and dial indicators, ensuring accurate parsing and handling of measurement data streams. My experience with embedded Android (including system-level customization and MAUI-compatible integrations) allows me to extend your current application stack while maintaining performance and stability. On the firmware side, I can evaluate and implement any necessary updates to the STM32G473QCT6 to ensure seamless communication between BLE data inputs and your existing analog/digital sensor framework. I will deliver a clean, modular BLE communication layer, optimized Android system enhancements, and well-documented firmware updates where required. My approach emphasizes reliability in industrial environments, low-latency data handling, and maintainable architecture for future expansion. I’m confident I can provide a streamlined, production-ready solution that integrates smoothly into your rugged gauge system. Best regards. Jared
$50 USD dalam 40 hari
4.7
4.7

Greetings! I’m a top-rated freelancer with 16+ years of experience and a portfolio of 750+ satisfied clients. I specialize in delivering high-quality, professional Industrial Gauge based Bluetooth Support services tailored to your unique needs. Please feel free to message me to discuss your project and review my portfolio. I’d love to help bring your ideas to life! Looking forward to collaborating with you! Best regards, Revival
$25 USD dalam 40 hari
4.6
4.6

Dear Hiring Manager, I am very interested in your project to add Bluetooth measurement tool support to your rugged gauge computer based on the TechNexion PICO-IMX6U SOM and STM32G473 microcontroller. This project requires experience with BLE communication, embedded Android customization, and microcontroller firmware integration, which aligns well with my embedded systems development experience. I can develop a Bluetooth Low Energy interface on the embedded Android 9 system to handle device discovery, pairing, bonding, and GATT communication for calipers, micrometers, dial indicators, and similar measurement tools. The system will continuously receive measurement data, parse the device protocols, and pass structured measurement values to your MAUI application. I can also implement background BLE services, auto-reconnect, and device management for reliable industrial use. If required, I can customize the embedded Android system and also review or modify the STM32G473 firmware to ensure proper communication between the microcontroller and Android system, including UART/SPI communication, timing, and data packet handling. I am comfortable working with embedded Android, BLE stacks, STM32 firmware, and hardware-software integration and would be happy to discuss your current architecture and supported BLE device protocols. Best regards,
$45 USD dalam 40 hari
3.9
3.9

Hi there, I reviewed your requirements and I can implement reliable BLE measurement support for your rugged gauge system. I’m an Electrical Engineer and Embedded Systems Developer with experience in STM32 firmware, embedded Android/Linux, and wireless communication. I’ve built sensor-based systems and wireless data solutions, so I can handle both MCU-level integration and Android-side processing. Approach Develop BLE (GATT client) interface to connect with calipers, micrometers, and indicators Parse and standardize incoming measurement data Customize Android 9 system (services, permissions, MAUI integration) Update STM32 firmware if needed (data sync, buffering, communication) Ensure stable, low-latency, error-free operation Deliverables Working BLE interface with measurement processing Android system updates STM32 firmware changes (if required) Clean, documented code Questions Do you have BLE protocol details for the devices? Should data be handled on Android or synced with STM32? Any required data format or storage? Ready to start immediately. Best regards
$25 USD dalam 40 hari
3.3
3.3

I have worked on projects involving wireless data transfer, sensor integration, and stable communication between embedded devices. Previously, I have built IoT systems where data from sensors and devices was transmitted over BLE and processed in real time. Based on this experience, I will help add BLE support to your system, handle measurement data from tools like calipers and micrometers, and make the required updates in Android and STM32 firmware. I will keep the implementation simple, stable, and easy to maintain.
$25 USD dalam 40 hari
3.2
3.2

Need to add support to a rugged gauge computer so it can process measurements coming from Bluetooth-enabled calipers, micrometers, dial indicators and similar tools. The hardware uses a TechNexion PICO-IMX6U SOM (MAUI app running on custom embedded Android 9) and an STM32G473QCT6 microcontroller that interfaces with a variety of analog and digital sensors. Deliverables • Interface to establish BLE connections and process the stream of measurements. • Customizations to the embedded Android system. • Changes to the STM32 firmware (if needed).
$38 USD dalam 40 hari
2.9
2.9

Hey , I just finished reading the job description and I see you are looking for someone experienced in Software Development, Bluetooth Low Energy (BLE), Electronics, Signal Processing, Microcontroller, Bluetooth, STM32, Android App Development, Android and Embedded Systems. This is something I can do. Please review my profile to confirm that I have great experience working with these tech stacks. While I have few questions: 1. These are all the requirements? If not, Please share more detailed requirements. 2. Do you currently have anything done for the job or it has to be done from scratch? 3. What is the timeline to get this done? Why Choose Me? Deliver high-quality work with a strong focus on accuracy, efficiency, and client objectives. Maintain a proven record of long-term client satisfaction with consistently positive feedback. Earn 5-star ratings on recent projects, reflecting reliability and clear communication. Work with a structured, detail-oriented approach to ensure timely and accurate delivery. Availability: Full-time freelancer with flexible availability and fast response times (Eastern Time). I will share with you my recent work in the private chat due to privacy concerns! Please start the chat to discuss it further. Regards, Ali
$25 USD dalam 15 hari
2.6
2.6

Hello sir, how are you doing? I reviewed your project detail carefully and I understand you need BLE support for rugged gauge computer to process measurements from calipers, micrometers, and dial indicators on embedded Android 9 with STM32 MCU. I can implement BLE interfaces on Android, process measurement streams in real time, customize the embedded system, and update STM32 firmware if required for smooth sensor integration. I will deliver reliable BLE connectivity, accurate data handling, firmware adjustments if needed, and documentation for setup and maintenance. I have some questions to clarify: * Are all measurement tools already BLE-enabled or do some require custom profiles or protocols? * Should the measurement data be logged locally on the device or streamed continuously to an external system? I will look forward to your reply. Warm regards, Sihalath S.
$38 USD dalam 40 hari
2.3
2.3

I work with STM32 and embedded BLE systems regularly — this project sits squarely in my lane, particularly the firmware and BLE integration layers. For the STM32G473 side I can implement or extend the firmware to handle BLE peripheral data coming in from measurement tools (calipers, micrometers, dial indicators). Most of these tools broadcast measurements over BLE using simple GATT notify characteristics — parsing the data stream, validating packets, and passing clean values to the Android layer is straightforward once the protocol spec is known. For the Android 9 / MAUI app side I can handle the BLE scanning, connection management, and GATT characteristic subscription — establishing stable connections to multiple measurement tools, receiving notifications, and routing the parsed measurements into the existing app UI. Key questions before I scope the work precisely: • Do you have the BLE protocol spec for the specific caliper/micrometer brands you’re using, or will that need to be reverse-engineered from captures? • Is the STM32 currently involved in the BLE path, or does it only handle the analog/digital sensor side? • Can you share the current MAUI project structure so I can assess the integration points? Ready to start as soon as I have those details.
$25 USD dalam 40 hari
3.0
3.0

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