LoRa IoT Telemetry System Development

@MuhammadUzair16

Hi, I am an embedded systems engineer with over 16 years of experience taking connected consumer and industrial products from concept through production, including hardware, firmware, bring-up, RF validation, and manufacturing documentation. This engagement is a strong fit for my background. I can own the complete build-to-spec workflow for the ESP32-S3/nRF52840 sensor nodes and LTE gateway: sourcing and traceable BOM control, assembly, LoRa/SX1262 and sensor firmware, AES-128 communications, solar/battery validation, MQTT integration, enclosure integration, and bench testing. I also have hands-on experience with antenna tuning and VSWR measurements, low-power field devices, and producing clear as-built diagrams and QA logs. My practical approach would be to review the full specification under NDA, confirm the BOM and acceptance matrix, build and validate the first units, then assemble and test the remaining units against the agreed checklist before delivering firmware, hardware, and documentation. How many sensor nodes and gateway units are required in this phase, and should component/enclosure costs be included in the bid? I’m comfortable with the NDA and IP-assignment terms and invite you to discuss the technical details.

@iamhamzazaki

As a seasoned and well-rounded embedded systems engineer, my skill set and experience align perfectly with your project requirements. Over the years, I've been deeply involved in the development of ruggedized wireless sensor networks - just like what you're seeking. I'm adept at designing, assembling, flashing, and bench-testing production-ready sensor nodes and cellular gateways - exactly what you need for your LoRa IoT Telemetry System project. My proficiency in C/C++ programming for ESP32-S3 and nRF52840 in the Arduino framework and extensive knowledge of LoRa radio work on the SX1262 put me in a unique position to create seamless communication with GPS-based time synchronization. I'm also quite versed with implementing sensor integration over different protocols such as I2C/UART/GPIO, which will be pivotal in integrating proximity, motion, and vibration sensing capabilities successfully.

@macroenergy

Hey there! My name is Metin, and I'm an experienced embedded hardware and firmware engineer with extensive knowledge in areas closely related to your project. Having worked with digital motor control, analog design, electronic design, power electronics, renewable energy, and more, I believe I bring a diversified skill set that can significantly contribute to designing and assembling the LoRa IoT Telemetry System you need. Over the years, especially through my power electronics background, I have garnered valuable skills in Li-ion/LiPo battery design and charging. Beyond skills and experiences though, what truly sets me apart is my passion for clean documentation - something that perfectly aligns with your need for traceable BOMs, as-built wiring diagrams, and bench-test logs To sum it up, choosing me for this project would mean bringing on an embedded engineer who can confidently manage all aspects of hardware sourcing/assembly and firmware implementation/validation. With my +500 system designs under my belt using microcontrollers like ESP32-S3 and nRF52840 (RAK WisBlock), proficiency in LoRa radio communications (SX1262), IoT sensors integration over various protocols (I2C/UART/GPIO), and a commitment to maintaining tight deadlines while delivering excellent I'm confident we can create a robust LoRa IoT Telemetry System you'll be proud of. Let's discuss further!

@engrusmanfaiz

Hi, This project is a strong match for my experience in ESP32-S3, nRF52840, LoRa, embedded C/C++, PCB hardware, and IoT systems. I have 10+ years of hands-on electronics and embedded development experience. I can handle the complete node development, including SX1262/RadioLib, GPS time sync, PIR/IMU sensors, SIM7600 LTE + MQTT, Li-ion/solar power, AES-128, and RF/antenna validation. I’m also comfortable with BOM sourcing, PCB assembly, firmware flashing, bench testing, and detailed QA documentation. For the RF side, I can validate the antenna path and VSWR using appropriate test equipment and make sure the design is reliable before delivery. I’m comfortable working under NDA and work-for-hire terms, with complete source code and documentation delivered to your team. I’d be happy to review your detailed specification after NDA and propose the development plan.

@DrSyafiq

For a LoRa IoT Telemetry System Development, the hard part is balancing sensor scanning accuracy, battery life, Bluetooth/SIM fallback, and OTA-ready embedded reliability. I've handled similar builds involving Electronics, Microcontroller, Embedded Systems, PCB Design and Layout, usually where the important part was translating the brief into a reliable working system. My approach would be to validate the sensor matrix and power budget first, then design the acquisition PCB, embedded firmware, connectivity fallback, and OTA/admin controls in staged prototypes. For this project, I would focus especially on: - Sensor front-end, matrix scanning strategy, MCU selection, and PCB layout - Battery/power budget, Bluetooth setup, SIM fallback, buffering, and geolocation - OTA firmware, remote activation/deactivation, ownership reset, and admin controls If helpful, I can outline the sensor-to-cloud prototype plan and PCB/firmware risk checklist before committing to the full board. Best, Dr. Syafiq

@ahmed4499

Hello Sir as i am computer engineer and certified embedded developer software so i can surely help you do that so may we talk , thanks and and regards

@edi45

Hi, i helped design esp32 for environmental sensor from ground up. It very low power at sleep state down to couple nanoAmpere. This board has power harvester from from very small solar cell and report everything peridically programmed in AWS system

@ahmaddar2970

Thanks for the detailed overview. This is exactly the kind of build-to-spec embedded engagement where disciplined hardware bring-up, firmware integration, and bench validation matter most. I’m comfortable working across ESP32-S3 and nRF52840-based sensor nodes, LoRa/SX1262 integration, GPS time sync, cellular MQTT gateway work, and the practical details that usually decide whether a system is field-ready: power stability, RF validation, enclosure fit, and repeatable test documentation. I can support the full path from sourcing and assembly through flashing, validation, and acceptance testing, with traceable BOMs, wiring diagrams, and clean QA logs suitable for handoff. I also understand the importance of NDA-bound development and work-made-for-hire delivery, including exclusive assignment of source and documentation. If helpful, I’d be glad to review the technical spec under NDA and map out the implementation and test plan in a structured way. I aim to keep communication clear, execution methodical, and deliverables production-oriented. Best regards.

@Ryan15222

Hi, I am an Embedded Systems and IoT Engineer with hands-on experience developing ESP32, nRF52, LoRa/SX1262, GNSS, LTE, battery-powered and sensor-based systems, including custom PCB and firmware development. Your project fits well with my experience in building complete embedded products from hardware architecture through firmware, assembly and validation. I can work directly from your detailed specification and take responsibility for sourcing, assembly, firmware implementation, and bench testing. My proposed approach: Review the specification and finalize hardware architecture/BOM Integrate ESP32-S3/nRF52840, SX1262, GPS, sensors and SIM7600 Develop embedded C/C++ firmware using Arduino framework Implement LoRa communication, GPS time synchronization and AES-128 security Develop LTE/MQTT gateway functionality Validate power consumption, solar charging and battery operation Perform RF/antenna and VSWR testing using NanoVNA where applicable Assemble, flash and bench-test production-intent units Provide firmware, BOM, wiring documentation and detailed QA/test reports I can structure the work into clear milestones with measurable acceptance criteria and provide all required source files and documentation under your NDA/IP terms. I would be glad to review your technical specification and propose the exact hardware architecture, BOM and development schedule. Best regards,

@rezamahi

I’m an experienced embedded/firmware engineer with 4+ years of hands-on experience in embedded C/C++, IoT, robotics, wireless systems, and production-oriented hardware development. Your LoRa telemetry system is a strong match for my background. I can handle the complete build-to-spec workflow: ESP32-S3/nRF52840 firmware, SX1262 LoRa communication using RadioLib, I2C/UART/GPIO sensor integration, GPS time synchronization, SIM7600/LTE and MQTT gateway development, AES-128 encryption, and power-management validation for Li-ion/LiPo + solar systems. I’m also comfortable with RF testing, antenna tuning, VSWR measurements using NanoVNA/antenna analyzers, hardware sourcing/assembly, firmware flashing, and bench validation. I understand that rugged field hardware requires more than code—I’ll provide traceable BOMs, wiring diagrams, test logs, and reproducible QA documentation alongside production-ready units. I’m comfortable working under NDA and work-made-for-hire/exclusive IP terms. I’d be happy to review the detailed specification after NDA and propose milestones, test criteria, and a realistic delivery schedule. I’m ready to start immediately.

@revival786

Greetings! I can design, assemble, flash, and bench test your LoRa IoT telemetry system, including battery and solar powered sensor nodes with proximity, motion, and vibration sensing, and a cellular gateway node. I am comfortable with embedded C C++ for ESP32 S3 and nRF52840 in the Arduino framework, LoRa radio work on SX1262 with RadioLib, sensor integration over I2C, UART, and GPIO, cellular modems like SIM7600 with MQTT, and Li Ion solar charging design. I would also handle antenna matching and validation, implement AES 128 encryption, and deliver fully assembled and tested units with clean documentation including BOM, wiring diagrams, and test logs. I am happy to sign an NDA before receiving the full technical spec and can work on a milestone basis with all IP assigned to you. Let me know your preferred timeline and I can share my milestone structure. Thanks, Revival

@sekai1116

As an Embedded Systems and Electronics Engineer with over a decade of experience, I am adept at end-to-end development and optimization from schematic design to production-ready documentation. I have excelled at projects exactly like yours - specifically the designing, assembling, flashing, and testing of embedded hardware. I am fluent in the Arduino framework including Embedded C/C++, which will enable me to seamlessly work with ESP32-S3 and nRF52840 - hardware your project is based on. Beyond developing hardware, I have successfully integrated multiple sensors such as PIR, accelerometer, GPS using I2C/UART/GPIO; a key requirement for this project. I've also worked extensively on LoRa radio technology including RF tuning using RadioLib. Li-ion / LiPo + solar charging design and validation is yet another area of my expertise that matches your needs perfectly. On communication aspects, my inclusion of cellular (LTE) modems and MQTT in past works makes me well-versed with this domain as well. Moreover, my clean documentation practices ensure that traceable BOMs, as-built wiring diagrams all with validated power and RF performance; your needs will be met. Withheld anticipation & excitement, I guarantee to deliver fully assembled units that pass the necessary QA/test checklist along with their respective source firmware and accurate documentation. When it comes to confidentiality, rest assured about full compliance of confidentiality terms as required.

@sufyanasmat38

I have experience with embedded C/C++, ESP32, nRF-based systems, sensor integration, LoRa communication, MQTT, and hardware/firmware testing, and I understand the requirements for a rugged field-ready telemetry system. I can handle firmware implementation, sensor and SX1262 integration, GPS synchronization, LTE/MQTT communication, encryption, power validation, flashing, bench testing, and clear technical documentation. I’m comfortable working from a detailed specification under NDA and delivering production-ready, well-tested firmware and assembled units. Please message me in inbox to discuss the private spec, hardware selection, acceptance checklist, timeline, and milestones.

@HamparProd

Hi, This is a strong fit for my embedded/IoT background because I understand you are looking for ownership of the complete node/gateway build and validation process, not simply firmware development. For the sensor nodes, I can work with ESP32-S3/nRF52840, SX1262/RadioLib, I2C/UART/GPIO sensors, GPS timing, power-state management and AES-128 protected LoRa communication. For the gateway side, I would implement the LoRa-to-LTE path with SIM7600-class cellular hardware, connection recovery and reliable MQTT publishing. My approach would begin with the NDA and full technical specification, followed by a requirements/BOM review before hardware is committed. I would then establish one reference node and gateway, validate sensor/radio/power behavior, complete firmware integration, and only then reproduce the remaining units. That avoids multiplying an early hardware or RF issue across the whole batch. Testing would cover packet reliability, current consumption and battery/solar behaviour, LTE/MQTT recovery, sensor operation, encryption, GPS synchronization, antenna/VSWR performance and defined fault cases. Each delivered unit would be flashed and bench-tested against the acceptance checklist. You would receive the complete firmware source, traceable BOM, as-built wiring documentation and bench-test records, with IP transferred as required. I am comfortable signing the NDA and reviewing the detailed specification before finalising procurement and milestone acceptance tests.