Prototype Development: Wall-Mounted GSM/Satellite Distress Beacon

@Mahihassi

With over a decade of experience in electrical engineering, embedded systems, and PCB design, I am confident that my expertise aligns flawlessly with the specifications outlined in your project. My familiarity with low-power IoT and GPS/GSM modules is transferable to your proposed concepts, ensuring that not only will the prototype performed as intended but also exceededyour expectations. Not only am I proficient in PCB design using Altium Designer, KiCad, and more, but my understanding of hardware extends to RF Hardware. With that, I can confidently create an enclosure that would meet your requirements of weatherproof and compactness for both indoor and outdoor use. Additionally, should you consider a wearable variant of the beacon (potentially needing a SAR certification), rest assured that along with FCC/CE certifications sway. My adequate skills in software development will also be an invaluable asset to this project; from creating cloud dashboards and real-time monitoring systems to developing secure APIs - all fitted for your specific use case.

@markoa7

Hello, I’ve read your wall-mounted distress beacon spec carefully and can deliver a compact, weather-resistant prototype with GSM as the primary link and satellite as failover. The design uses a low-power MCU, a GPS module for coordinates, and a GSM module for real-time transmission, with a satellite option for outages. Power comes from a long-life battery with optional mini solar charging, targeting a standby draw below 1 µA to achieve a year of idle operation. The deliverables include schematic, PCB layout, firmware, and 1-2 working units within 4-6 weeks, plus NDA. Are you targeting a specific satellite network (Iridium vs Globalstar) and any preferred data protocol (SMS vs IP) for the GSM path? Best regards, Marko Aleksic

@AwaisChaudhry

Hello, I will develop a compact wall-mounted distress beacon prototype with GSM primary and satellite failover, built for reliable 1-year standby with optional solar recharge. My approach covers a low-power, robust enclosure, a single activation button, status LEDs, and a pre-programmed GPS coordinate transmission workflow. The device will wake from ultra-low power, verify coordinates on activation, send via GSM, and switch to satellite if GSM is unavailable. The design includes a lightweight PCB, integrated GPS, a GSM module, a satellite module, and a power manager capable of Li-SOCl2 cells with a trickle solar option. I’ll deliver a schematic, PCB layout,Firmware, and 1-2 working units within 4-6 weeks, plus NDA compliance. 1) What area will the device operate in and what is the GSM coverage like there? 2) Do you prefer Iridium or Globalstar for satellite backup or a specific provider? 3) What data rate and latency are acceptable for the distress transmission? 4) How should the initial programming of coordinates be performed (USB, Bluetooth app, or on-device setup)? 5) What IP rating is required for the enclosure and is outdoor installation expected? 6) Which certifications are mandatory (FCC/CE, SAR) for your target markets? 7) NDA and IP ownership terms? 8) How many units do you want, and is mass manufacturing support needed beyond prototypes? 9) What are your testing and acceptance criteria for the prototype, including endurance and environmental tests? I will tailor the

@consultotal

Hi i'm engineer, Internet of things, machine learning, networking, lighting, power distribution, automation and control expert, i have experience working in electromechanical systems and control - design and building, automated machines, industrial networks, electrical grids, electrical vehicles, renewable energy, distribution substations, grounding, coordination of protections. I can develop for you designs, plans, bill of materials, budgets and simulations; solidworks, simulink, simscape, pscad, proteus, electrical / mechanical engineering

@electronicsdone

Best Low-Power IoT & GSM/Satellite Hardware Design Expert ⭐⭐⭐⭐⭐ Hi, Thank you for posting your project, “Prototype Development: Wall-Mounted GSM/Satellite Distress Beacon.” I’ve reviewed your requirements and can help you design and build a robust, production-ready emergency beacon capable of reliably transmitting GPS coordinates via GSM with satellite failover, while achieving ultra-low standby power consumption for long-term deployment. I bring 11+ years of experience in low-power IoT hardware, GPS/GSM/satellite communication systems, battery-powered device design, and rugged PCB development. ✅ How I’ll Help You Succeed 1. Define and validate the overall system architecture combining GSM primary communication with satellite failover for guaranteed message delivery. 2. Design a low-power hardware platform (MCU, GPS, GSM, satellite module, power management, battery, optional solar input) optimized for 6–12 months of standby life. 3. Develop production-ready schematics and an optimized BOM using proven, available communication and power components. ✅ Before I Start, One Quick Question: Do you want me to focus first on power-budget validation and communication module selection (GSM + satellite), or proceed directly with the full schematic and PCB design based on your preferred components? If you share that, feel free to message me, and we can align quickly. Best regards, Prat PCB Must Innovations

@yaroslavmark

Hi, I am a senior embedded hardware/firmware engineer with 10+ years of experience in low-power IoT systems using STM32/ESP32 and GSM/GPS modules, delivering 20+ custom PCBs and achieving <2µA standby with 12+ month battery life in real deployments. I have integrated SIM800 and Iridium 9603 with automatic failover logic and delivered FCC-ready prototypes from schematic to working units within 4–6 weeks. Approach: ✅ I will design a low-power STM32-based architecture with controlled power domains for GSM and satellite modules to ensure long standby life. ✅ I will implement clear button/LED state-machine firmware with GSM primary transmission and automatic satellite failover. ✅ I will design a compact, RF-optimized PCB with Li-SOCl₂ battery, optional solar input, and battery monitoring. ✅ I will deliver schematic, PCB, firmware, BOM, and 1–2 tested prototypes. Questions: ✅ I need confirmation of the backend method (SMS, TCP/IP, or Iridium SBD) to define the communication protocol. ✅ I need clarification on required IP rating and operating temperature range. ✅ I need confirmation whether GPS must acquire live location or send fixed programmed coordinates only. Best, Yaroslav

@borisdeveloper71

Hi, there. I can confidently say, "I can do it perfectly." I don't think a long explanation is necessary. With my solid experience in Electronics, Industrial Design, Product Sourcing, Manufacturing, Electrical Engineering, PCB Layout, Product Design, Embedded Systems, Prototyping, User Experience Research, I will do my best until you are completely satisfied with the final result. I look forward to working with you. Thank you for your time and review. Boris.

@mohammadusman45

Hello, I’m a senior hardware and embedded systems engineer with 10+ years of experience developing low-power IoT, GPS, GSM, and satellite-enabled devices. I can design and deliver your wall-mounted emergency prototype—including schematic, PCB, firmware, and 1–2 fully working units—within 4–6 weeks under NDA. ✅ Understanding of Your Requirements You need a compact, durable wall-mounted device that: * Transmits pre-programmed GPS coordinates * Uses GSM as primary communication * Automatically fails over to satellite (Iridium/Globalstar) * Achieves 6–12 months standby battery life * Implements custom button + LED activation logic * Provides reliable, low-power operation Architecture MCU (Ultra-Low Power): STM32L series (or equivalent) for <µA sleep current and deterministic state-machine control. GSM (Primary): SIM800/SIM7000 class module from SIMCom Satellite (Failover): Iridium 9603 / RockBLOCK via Iridium Communications GNSS (Optional but Recommended): Module from u-blox ? Custom Button & LED Logic Fully implemented in firmware: * Short + 5 sec long press → distress transmit * Successful send → LED2 green (20 sec) * LED1 steady red (ready) * LED1 flashing red (<30% battery) I’m ready to begin immediately and can start with a brief technical alignment call to finalize component decisions and power targets. Best regards, Muhammad Senior Hardware & Embedded Systems Engineer

@draganm59

Hello [Client's Name], I am excited about the opportunity to contribute to your project on developing a prototype for the wall-mounted GSM/Satellite distress beacon. With extensive experience in electronics and low-power IoT solutions, I am confident in delivering a robust and efficient product that aligns with your detailed specifications. Your project requires an adept understanding of GSM and satellite communication integration, as well as power management for long-term battery life. My background in embedded systems and PCB layout design ensures that I can effectively manage the dual communication modules, using GSM for primary transmission and satellite networks as a fallback. My experience with low-power microcontrollers like ESP32 and STM32 will be instrumental in achieving the desired standby battery life. I propose a methodical approach that begins with schematic design and component selection, focusing on ultra-low power consumption. The next phase will involve firmware development for button logic and LED indicators, ensuring a seamless user experience. I will also oversee the fabrication of a durable, weatherproof enclosure and certify compliance with necessary standards. By prioritizing a user-friendly activation sequence and real-time tracking capabilities, this device will meet all functional requirements while maintaining operational integrity in various environments. I am eager to bring my expertise to your project and look forward to collaborating with you to create an innovative and reliable distress beacon. Best regards, Dragan M.

@ahmedy607

Hi, Please check my portfolio — this is exactly the type of low-power IoT emergency hardware I build. I can deliver your wall-mounted emergency device with: GSM primary + satellite failover 6–12 month standby battery life Custom button/LED activation logic Ultra-low power architecture Complete schematic, PCB, firmware 1–2 working prototype units Strong experience with GPS, GSM (SIM series), Iridium SBD, and low-power STM32 systems. Timeline: 4–6 weeks NDA: No problem Ready to start immediately.

@hancho6319

As an experienced Embedded Systems Engineer, I bring a unique fusion of skills to the table. My diverse experience in designing and building embedded solutions falls right in line with the multi-faceted nature of your project. From my firm grasp on low-power IoT systems to my command over GPS/GSM modules, I am confident that I can deliver the prototype you envision — complete with the must-haves such as your preferred low-power microcontroller options like ESP32 or STM32. My proficiency in hardware troubleshooting would also be of great advantage during the design process. Moreover, my Electrical & Electronics Engineering background underpins a strong foundation in digital systems and communications which tend to critically influence the architectural aspects of embedded systems like yours. Fused with my expertise in CAD modeling and PCB design with tools like KiCad, I will ensure precision, durability, and compliance your prototype needs. Not only is quality paramount to me but also timeliness, which aligns well with your 4-6 week project timeline. Cognizant of how crucial end-to-end security is for devices like these; I respect and am familiar with NDAs and I conform strictly to them. With this in mind, entrusting me with your wall-mounted emergency device project would assure you of not just high-quality outputs but a seamless collaboration towards building something impactful and effective for your users.

@joaquinc48

✅✅✅ Low-Power IoT Hardware Engineer – GSM/Satellite Systems ✅✅✅ Hi there, I design ultra-low-power IoT devices with GSM, GNSS, and satellite backhaul, including battery-operated emergency and tracking systems. My experience includes STM32/ESP32 platforms, Iridium SBD integration, aggressive power budgeting (<µA standby), and delivering full prototypes with PCB, firmware, and enclosure coordination. My approach is to architect a dual-radio system with GSM primary and Iridium failover, using a low-power MCU, load-switched subsystems, and lithium-thionyl chloride battery management with optional solar trickle input. I’ll deliver schematic, 4-layer PCB, optimized firmware (deep sleep + interrupt wake), and 1–2 validated working units within timeline. Questions: Is SMS acceptable for GSM primary or IP data required? Target operating temperature range? Do you already have a monitoring backend defined? I am ready to start immediately. Best regards

@jessev08

Hi, I’ve worked on projects like this before, so what you’re describing makes sense to me. And I'm really interested in this project - Prototype Development: Wall-Mounted GSM/Satellite Distress Beacon. I usually focus on getting things done cleanly and making sure they work properly in real use, not just on paper. I’m comfortable either improving an existing setup or helping build something new, depending on what stage you’re at. I keep communication straightforward, share progress along the way, and flag issues early so there are no surprises later. If you want, you can share a bit more about the current setup or the goal you’re trying to reach, and I can let you know how I’d approach it. Thanks, Jesse

@NadiaCrea8weB

Hi there, I’ve reviewed your wall-mounted GSM with satellite failover concept and I’m confident I can deliver a compact, weatherproof prototype with 1-year standby, two-LED status logic, and reliable pre-programmed coordinates delivery. Best regards, Nadia

@daxm0

Hello , I would love to help. I understand what you need and can start with a clear plan to reach your goals. I am a skilled freelancer with 8+ years of experience in Prototyping and I have completed similar projects. Visit my profile to check my latest work and reviews from past clients. Looking forward to working with you, connect in chat. Thanks, Dax Manning

@gabrielivang0810

Hi there, With over 10 years of experience in Electronics and a track record of completing 50+ Desktop/Mobile applications and Embedded software, I am well-equipped to take on your project. I understand your need for a wall-mounted emergency device that transmits GPS coordinates via GSM and satellite networks. I have a proven expertise in low-power IoT devices, GPS, and GSM modules, making me the ideal candidate for this project. I am confident in providing a professional solution that meets all the specified requirements, including the custom button/LED logic, long battery standby, and failover capabilities. I would love to discuss your project further in chat to ensure a successful collaboration. Thanks.

@markupdudes

Hi, I’ve thoroughly reviewed your project for developing a wall-mounted GSM/Satellite distress beacon prototype with detailed specs and timeline. With extensive experience in low-power IoT design, embedded systems, and GSM/GPS integration, I can deliver a compact, durable, and weatherproof prototype meeting your requirements. I will develop the custom MCU firmware, integration for GSM with satellite failover, and implement the requested button and LED activation logic. My approach includes schematic and PCB design, electrical testing, and producing 1-2 working units within your 4-6 week timeline. I fully understand the necessity for a minimum 1-year standby battery life and will optimize power consumption accordingly. Next, I can start by discussing preferred communication protocols for programming coordinates and enclosure preferences to ensure alignment before prototyping. Would you prefer coordinate programming via USB or a Bluetooth app, and do you have specific requirements for the enclosure’s mounting and material? Best regards,

@fakhara1ha

Hey , I just finished reading the job description and I see you are looking for someone experienced in Industrial Design, Electrical Engineering, User Experience Research, Product Design, Electronics, Manufacturing, Prototyping, Embedded Systems, Product Sourcing and PCB Layout. 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? 1. I have done more than 250 major projects. 2. I have not received a single bad feedback since the last 5-6 years. 3. You will find 5 star feedback on the last 100+ major projects which shows my clients are happy with my work. Timings: 9am - 9pm Eastern Time (I work as a full time freelancer) I will share with you my recent work in the private chat due to privacy concerns! Please start the chat to discuss it further.

@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:  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.