Foldable Electronic Device for Shooting Sports

@MuhammadUzair16

Hi I am an embedded systems engineer with over 16 years of experience. I have extensive experience with STM32/ESP32 based products, high-speed sensor acquisition, digital MEMS microphones, DMA timing, wireless links, battery power design and complete product development from concept through prototype and production. This is a serious timing and calibration problem, not just a PCB job. I can help with the foldable frame concept, satellite and main board schematics/PCB, STM32 I2S acquisition with pulse timing, ESP32 coordination, TDOA solver, temperature compensation, WiFi/LoRa reporting and validation of hit position accuracy. My usual approach would be to first lock the microphone geometry, timing budget and calibration method, then move into PCB/mechanical design and firmware bring-up so the electronics and algorithm are tested together. A few points I would like to confirm are the required scoring accuracy, expected projectile distance from the sensor plane, preferred target size, whether you need prototype manufacturing files only or full assembled prototype support, and the mobile/scoreboard protocol expected. Please contact me to discuss details.

@mairajali11

With over 8 years of extensive experience in electronic engineering, I can confidently say that I'm a top candidate for your foldable electronic device project. My expertise ranges from PCB design and prototyping using Eagle, Altium, KiCAD, and EasyEDA to firmware development for microcontrollers like the STM32 and ESP32. I've also handled projects requiring specialized skills such as TDOA-based localization algorithms, WiFi/LoRa communication, and power management – all of which are essential components in your portable shooting sports device. What sets me apart as an engineer is not just my technical proficiency, but also my commitment to quality, timely delivery, and open communication with clients. I understand the importance of a reliable system design with precise calculations for your device to accurately measure projectile speed and intersection point. This is why I'm well adept in temperature/humidity correction techniques using environmental sensors, like the BME280. So let's partner up and leverage my advanced skill set to create a robust, foldable electronic device tailored to your shooting sports needs. The journey from mechanical design to firmware integration will be guided by my intrinsic passion for engineering innovation and my capacity to transform ideas into reality. And of course, given the nature of the project you can expect round the clock support from me!

@Adeel2k14

We propose a specialized electronics engineering solution focused exclusively on the PCB design and testing phases of your supersonic projectile tracker. Our team will engineer the schematics and high-speed PCB layouts for both the 8-channel digital I2S MEMS satellite sensor boards and the main controller board housing the dual-STM32 and ESP32 microcontrollers, ensuring clean signal integrity and optimal power management. Following fabrication, we will conduct rigorous hardware validation and hardware-in-the-loop testing to guarantee precise data acquisition and robust wireless performance, delivering production-ready, fully verified electronic assemblies for your system.

@hayat38402

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.

@manusharma2992

With my extensive background in electrical engineering and mechanical design, your project involving a foldable electronic device for shooting sports is right up my alley. I bring to the table the expertise you need in areas like PCB layout, firmware development, and system integration and validation. Rest assured that I will deliver top-notch results with my skill set ranging from AutoCAD, SolidWorks, Revit to the various programming languages necessary for this project. Moreover, my understanding of product design and manufacturing drawings will ensure that the foldable diamond frame, enclosures, microphone mounts are all strategically designed and durable. In working with numerous clients in the past, I’ve always placed a premium on clear communication which resulted in client satisfaction and outstanding finished products.

@hamzazayyad

Hello, I am very interested in your project. I have 15+ years of experience in Embedded Systems, STM32 Firmware Development, PCB Design, Signal Processing, Wireless Communication, and Industrial Electronics. Your system combines high-speed data acquisition, precise timing measurement, TDOA localization, DSP algorithms, and wireless communication—areas that closely match my expertise. I can assist with: • Main board and satellite microphone PCB design • STM32 firmware for multi-channel I2S + DMA acquisition • Shock-wave detection and timestamp extraction • ESP32 firmware for TDOA calculations, hit localization, scoring, and calibration • BME280 integration for speed-of-sound compensation • WiFi and LoRa communication • Li-Po power management • Prototype testing and system integration • Complete schematic, PCB layout, BOM, Gerbers, and source code I have extensive experience with STM32 real-time applications, digital signal acquisition, sensor integration, communication protocols, and production-ready hardware development. Before finalizing cost and schedule, I would like to discuss microphone selection, required accuracy, target size, projectile speed range, wireless range, and performance requirements. I can support the project from concept through prototype validation and final documentation, with revisions and post-delivery support available. I look forward to discussing the project details. Best regards, Hamza STM32 Engineer | PCB Design | Embedded Systems

@shykhAbubakar

Hi, Having over 8 years of experience in embedded systems, electronics development and firmware programming, I can assist you in developing your portable projectile detection and scoring system from concept through a fully integrated prototype. The project will include mechanical design, PCB design, embedded firmware development and system integration etc. and will fulfill all specified requirements. All work will follow IPC-2221 and IPC-7351 standards ensuring proper design and safety protocol requirements. Before starting, please confirm the following: Q1. Have you already selected the exact MEMS microphone model and STM32/ESP32 variants, or would you like recommendations based on the required sampling accuracy and processing performance? Q2. What localization accuracy (e.g., ±1 mm, ±5 mm) is required for hit detection? Project Deliverables: Mechanical design • Foldable diamond frame, enclosures, microphone mounts Electronics design • Schematics and PCB layout for satellite boards and the main board • Firmware for the STM32s (multi-channel I2S DMA, shock-wave detection, sub-sample time interpolation) • Firmware for the ESP32 (TDOA solver, hit projection, WiFi/LoRa communication, calibration) • System integration and validation • Bill of Materials Tools I Use: • Altium Designer, KiCad • STM32CubeIDE, ESP-IDF You can find similar design samples in my portfolio. Looking forward to your confirmation so we can proceed. Warm regards, AbuBakar

@yaroslavmark

Hi, I have over 10 years of experience in embedded systems, mixed-signal PCB design, and STM32/ESP32 development, delivering 80+ hardware projects including high-speed sensor acquisition, RF communication, and battery-powered embedded products with production-ready schematics, multilayer PCBs, and firmware. I have developed synchronized multi-MCU systems, high-speed DMA data acquisition, precision timing applications, WiFi/LoRa connectivity, and compact mechanical designs, making this shooting detection platform well aligned with my expertise. Approach ✅ I will design the complete hardware, including the main board, microphone boards, power management, and foldable mechanical structure. ✅ I will develop the STM32 and ESP32 firmware for synchronized microphone sampling, TDOA calculation, wireless communication, and system calibration. ✅ I will integrate, test, and optimize the complete system to achieve accurate projectile detection and reliable field operation. Questions ✅ Are the eight MEMS microphones already selected, or should I evaluate suitable I2S devices based on bandwidth, latency, and synchronization requirements? ✅ What localization accuracy and maximum projectile velocity are required so I can define the timing resolution and interpolation algorithm? ✅ Do you already have the mathematical TDOA localization model, or should I develop and validate the complete solver and calibration workflow? Best, Yaroslav

@tetianam8

⭐⭐⭐⭐⭐ Hi, This is a fascinating mixed-signal embedded system combining precision timing, DSP, RF, and mechanical integration. The architecture you've outlined—dual STM32s for deterministic I2S acquisition with an ESP32 handling localization and communications—is well suited for achieving accurate TDOA measurements. I can support the complete development cycle: foldable mechanical design, KiCad schematics and PCB layout for the main and satellite microphone boards, power management, and firmware for both the STM32 and ESP32. Particular attention will be given to synchronized I2S capture using DMA, low-jitter timestamping, signal integrity, RF layout, battery operation, and manufacturability. The ESP32 firmware will integrate timestamp data, apply temperature compensation using the BME280, execute the TDOA localization algorithm, project impact coordinates, and transmit results over Wi-Fi and LoRa in real time. I'll also assist with calibration, validation, and system bring-up to ensure repeatable performance. Deliverables include native design files, manufacturing outputs (Gerbers, BOM, CPL), firmware source, documentation, and validation notes. I have experience with STM32, ESP32, high-speed embedded systems, PCB design, wireless communication, and sensor integration, with a strong focus on reliable, production-ready hardware. I'd be happy to discuss timing requirements, microphone selection, and localization accuracy targets before we begin.

@sakshis576

As someone who specializes in both Electronics and Embedded Systems, I am prepared to bring an array of valuable skills to your foldable electronic firearm training device project. Not only do I hold expertise in designing strategies for shooting sports technology, but I also believe my competencies with tangible printed circuit board layouts will be essential in the mechanical design and system's architecture. Additionally, my years of experience in 3D animation and rendering service distinguish me as a capable candidate for system integration and validation. I can visualize your project’s dynamics from different angles and synthesize them into conceptualized designs that meet your exact requirements. As an added advantage, my familiarity with 3ds max and Rhino grasshopper enables me to create realistic virtual target experiences for an improved training ambiance.

@shivkantverma

Hi, Greetings! I am interested in working on your project. Could you please share the design details and technical requirements so we can discuss the project scope and key parameters in detail? I look forward to working with you. Thank you!

@danish2051

I am an Embedded Systems and PCB Design Engineer with experience in Altium Designer,Kicad,EasyEda,protious,Sprint layout and custom hardware development. I can design your PCB from schematic to production-ready files, including: • Schematic Design • PCB Layout • Component Selection • Design Rule Check (DRC) • Gerber Generation • BOM Preparation • Manufacturing Support (JLCPCB, PCBWay, etc.) I have experience with ESP32, STM32, sensor interfaces, power supplies, RF modules, Ethernet, and industrial electronics. Please share the project requirements, schematic (if available), board dimensions, and any special requirements. I can start immediately. Looking forward to working with you.

@mahmoudralizadeh

Hello, I have good experience with projects similar to yours. Please take a look at my profile. Thank you.

@alluankit01

Hi, I can help develop the foldable electronic projectile detection system, including hardware architecture, STM32/ESP32 firmware planning, microphone PCB design, TDOA localization logic, wireless communication, and prototype validation. The best solution is to first finalize the sensor geometry, microphone positions, sampling/timing requirements, synchronization method, frame dimensions, power requirements, and calibration process. Then I’ll design the satellite microphone boards, main control board, firmware structure for STM32 I2S/DMA timestamp capture, ESP32 data processing, temperature compensation, and WiFi/LoRa result transmission. I’m comfortable with STM32, ESP32, I2S MEMS microphones, DMA-based data capture, embedded firmware, PCB layout, LoRa/WiFi communication, battery-powered electronics, sensor calibration, and mechanical/electronics integration. Deliverables can include: * System architecture * Satellite microphone PCB design * Main board schematic/layout * STM32 firmware structure * ESP32 TDOA solver logic * WiFi/LoRa communication flow * Power management design * Calibration/validation plan * Documentation and test procedure Because this is a complex hardware + firmware + mechanical system, I recommend starting with a prototype phase first, then moving to full validation after the core detection and timing accuracy are confirmed. Best regards Ankit

@shahzaib81829

Hi I can develop this portable supersonic projectile detection system end-to-end, covering the foldable mechanical frame, microphone and main-board PCB design, synchronized STM32 I2S/DMA firmware, ESP32-based TDOA localization, temperature compensation, WiFi/LoRa communication, calibration, and full system validation. I have strong experience in embedded systems, real-time signal processing, STM32/ESP32 firmware, multilayer PCB design, MEMS sensors, and wireless integration, and I can deliver a robust prototype with documented hardware, source code, test procedures, and support through integration and field testing.

@ElecHamza

Hi, I can develop the firmware, optimize the schematics, and design the multi-board PCB layout for your supersonic projectile tracking target. I am highly proficient with multi-channel I2S DMA audio capture on STM32 platforms, low-latency TDOA localization algorithms on the ESP32, and RF design for robust LoRa or WiFi communication. I will ensure perfect clock synchronization across your microphone array and provide clean, production-ready manufacturing files for your hardware assembly. Best regards

@uzairelectronics

I have strong experience with STM32 multi-channel I2S DMA firmware, ESP32 WiFi/LoRa communication, MEMS microphone integration, and KiCad PCB design — covering the core electronics and firmware scope of your projectile detection system. I can design the satellite microphone PCBs and main board, develop STM32 firmware for synchronized I2S capture and shock-wave detection, and implement the ESP32 TDOA solver with BME280 temperature compensation, hit projection, and wireless communication. I recommend scoping the mechanical foldable frame separately. Please share more details on the TDOA accuracy requirements and frame dimensions to confirm timeline and budget. Best regards, Engr. Muhammad Uzair

@antonk52

Hello, Leveraging a combination of electrical engineering, electronics, and mechanical design skills, I can bring your foldable electronic device for shooting sports to life. My proven track record in backend and systems engineering demonstrates my ability to create reliable, scalable, and high-performing systems. Specifically, my skills in PCB layout design would be pivotal in effectively incorporating the eight high-bandwidth MEMS microphones into your foldable frame. Moreover, my deep experience with both legacy and modern systems will be invaluable in supporting every aspect of this project. From devising the system architecture with two STM32 microcontrollers and an ESP32 microcontroller to programming the firmware for accurate time-of-arrival estimation and hit projection, I'll leave no stone unturned in delivering precise results. Lastly, I prioritize long-term maintainability over quick fixes - an ethos that aligns with your project's goal. I have a keen eye for codebase refactoring, ensuring clean and maintainable architecture over time. With me on board, you can ensure not just a functioning system but a stable, secure one designed for scalability. Let's build something reliable! Thanks!

@nsofts

Hello, I can support the end-to-end development of this projectile detection and scoring system, covering mechanical design, electronics, embedded firmware, signal processing, wireless communication, and validation. My proposed approach would include: * Foldable frame and enclosure design with fixed, repeatable microphone positioning * Satellite microphone PCBs and main control board design * STM32 firmware for synchronized I2S DMA capture, pulse detection, timestamping, and sub-sample interpolation * ESP32 firmware for sensor fusion, TDOA localization, temperature compensation, calibration, scoring, WiFi, and LoRa * Prototype integration, calibration procedures, test software, and technical documentation * Validation of timing accuracy, hit-position accuracy, projectile-speed estimation, power consumption, and wireless reliability I recommend completing the work in phases: architecture and simulation, electronics and mechanical prototype, firmware development, calibration, and live validation. I am available to begin immediately and can provide a detailed milestone-based schedule and cost after reviewing the required frame dimensions, accuracy target, projectile-speed range, preferred wireless module, and manufacturing constraints. Best regards, Derek