Solar Cooker PCB-Firmware Design -- 2

@macroenergy

As an engineer with a broad foundation in Electronics and profound practical knowledge of Embedded Systems, I have successfully envisaged, and realized complex hardware designs tailored to varied specification in my many years of experience. My outstanding competence in Microcontroller and PCB Layout will be instrumental in developing your Solar Cooker's firmware and PCB design that will offset multiple limitations of your existing prototype. Additionally, my fluency in device dimensioning aligned with an understanding of power distribution will be crucial for your project where we are required to develop efficient energy management solutions to process energy-related data and generate error-free results. I am very familiar with energy metering techniques considering my past involvements with power-electronics and renewable-energy projects. In recognition of the fact that your project will be a progressive work entailing several iterations, my rapport developed over the use of different boards (such as Arduino/PlatformIO) will really expedite this task. To ensure timeous completion of this job within agreed-upon time frames that meet your satisfaction, allow me to provide end-to-end ownership and efficient utilization of FreeRTOS for task separation. I look forward to not only delivering a technologically superior skill package but maintaining this quality by providing 3 follow-up meetings for any post-implementation inquiries you may have

@amelectronics

I am a skilled and reliable Embedded Systems Engineer with over 6 years of hands-on experience in Arduino, ESP32/ESP8266, and microcontroller-based development. I specialize in designing efficient, stable, and scalable embedded solutions, turning ideas into fully functional hardware-software systems. I have a strong background in electronics, sensors, communication protocols (UART, I2C, SPI, MQTT, WiFi, BLE), and real-time embedded systems. My development approach focuses on clean, well-structured, and well-documented firmware, ensuring long-term reliability and easy maintenance. I also provide thorough testing, debugging, and performance optimization, including power efficiency improvements where required. I am a detail-oriented engineer with strong problem-solving skills and extensive experience in hardware debugging and firmware optimization. Beyond technical expertise, I value clear communication, meeting deadlines, and maintaining high client satisfaction. I work closely with clients to fully understand project requirements and deliver high-quality results. Pricing is flexible and can be discussed based on project scope and complexity. I am open to both short-term and long-term projects. Let’s work together to build a professional, reliable, and efficient embedded system for your needs.

@markoa7

As an electrical engineer specializing in PCB and firmware design, I am confident that I'm the right fit for your Solar Cooker project. With my strong suit in power supply circuits and experience with multilayer design, I'm well-prepared to create a single-board PCB that caters specifically to the needs of the energy monitor for your cooker. The proficiency I bring in programming microcontrollers ensures smooth integration across various components, making me well-equipped to execute the firmware development task seamlessly. Throughout my career, I have demonstrated success in creating efficient LED driver circuits which aligns perfectly with your project requirement. My expertise extends into communication protocols such as UART, SPI, Ethernet, USB, CAN, and MODBUS which will guarantee seamless data transfer between different parts of your device. Being proficient in wireless technologies including Wi-Fi, Bluetooth and Zigbee ensure that data logging and uploading over cellular would be flawlessly set up. Importantly, my commitment to delivering cost-effective solutions without compromising on quality falls perfectly in line with your expectation. Understanding the project's urgency, I promise an efficient turnaround time meeting all necessary checkpoints as you outlined. Let's initiate conversation around timelines and component lead-time constraints so we can iron out any concerns early on in the process!

@majeed219

Hi there, You need a robust PCB and FreeRTOS firmware for a cellular solar cooker monitor; I specialize in fault-tolerant IoT data logging and offline recovery architectures. --Why me?-- I am an embedded engineer experienced with EasyEDA Pro, precise sensor integration, and developing resilient OTA update mechanisms for single-board systems. --My method-- I will design the hardware for the metering IC and thermocouple, and structure the PlatformIO firmware with FreeRTOS to seamlessly manage SD batching, HTTPS uploads, and network outages. --Portfolio-- * Smart Vital Ring & Watch — managed continuous, high-fidelity sensor logging and wireless data syncing on space-constrained Nordic nRF PCBs. * Cross-Platform Health App — developed a Flutter mobile application for reliable data visualization and wireless device management. --Hardware needed-- Early firmware testing will require the specific energy metering IC evaluation board, your target cellular module (e.g., Quectel BG95 or SIM7000), and a thermocouple simulator. --Availability-- I align with your timezone and can map out a precise timeline and component lead-time check immediately after reviewing your v2.0 reference firmware. --Documentation-- You will receive production-ready EasyEDA files, fully commented PlatformIO source code, and a clear metering IC calibration guide. Regards, Majeed

@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.

@yaroslavmark

Hi, I am a senior embedded engineer with 8+ years of experience in PCB and firmware design for energy monitoring systems. I have delivered multiple production boards with metering ICs, thermocouples, SD logging, and cellular connectivity, handling millions of data points with reliable offline recovery. I also implemented OTA updates and FreeRTOS task management for distributed IoT devices, reducing update failures significantly. Approach: ✅ I will design a single-board PCB in KiCad/EasyEDA with power management, signal integrity, and metering IC calibration. ✅ I will develop firmware in PlatformIO integrating energy measurement, SD logging, cellular batch upload, offline recovery, OTA updates, and FreeRTOS task separation. ✅ I will provide full fabrication files including Gerber, BOM, and pick-and-place for manufacturability. ✅ I will prepare a calibration guide and support up to three 30-minute follow-ups for integration and troubleshooting. Questions: ✅ Should cellular uploads strictly follow HTTPS to the existing Cloudflare Worker, or is there flexibility? ✅ Are there preferred thermocouple types or connectors for the design? ✅ Should OTA updates support delta updates or full firmware replacement only? Best, Yaroslav

@shykhAbubakar

Hi, find my TOP NOTCH similar work on the Energy Monitoring PCB Project. The project involved single board PCBs with metering ICs, SD logging. Before moving forward, please confirm: Do you already have the reference schematics or repo for firmware or should I build the design directly from your prototype notes? Tools I Use • KiCad / EasyEDA • PlatformIO / Arduino I am ready to deliver a clean PCB and firmware package that consolidates your prototype into a single board, ensures logging and connectivity, and supports OTA updates for long term maintainability. The focus will be on accuracy and manufacturability. The documentation will be aligned with IPC and IEC standards. Best regards, Abubakar Muhammad

@isurutech

Dear Sir, I would like to present myself as a prospective candidate for your project. I have solid knowledge and experience in electronics and programming, including PCB design and ESP32 development. I have carefully reviewed your project description, and I believe I am well-suited for this task, as my skills align closely with your requirements. I am also particularly interested in your project, as it presents an engaging technical challenge. I have a couple of questions regarding the project: 1. Since the project title mentions a “solar cooker,” will the voltage and current measurements be in DC? 2. Do you require an SD card for direct data reading? Regarding my experience, I have previously implemented OTA updates for ESP32-based systems and have designed multiple PCBs using KiCad. Please feel free to visit my profile to review some of the completed PCB designs. I would be happy to discuss your project further and answer any questions you may have. Thank you for your time and consideration. I look forward to your response. Yours sincerely, Isuru Athukorala

@ElecHamza

Hi, I specialize in end-to-end embedded solutions and have extensive experience integrating cellular communication with precise energy metering. I will design a professional, manufacture-ready PCB that combines your metering IC and thermocouple interface into a single, compact board. My firmware approach utilizes FreeRTOS to ensure reliable multitasking between real-time data logging and batch cellular uploads over HTTPS. I will implement a robust offline recovery system and OTA update functionality to guarantee your device remains operational during network outages. You will receive complete design files, a calibration guide, and full support during the fabrication and testing phases. I am prepared to deliver a stable, integrated system that meets all your power monitoring and data recovery requirements. Best regards

@ZainAbbas51862

Greetings Dear Hiring Manager I have read the description of your project and I understand everything. "My expertise in designing industrial-grade energy monitoring PCBs and implementing robust FreeRTOS-based firmware ensures a seamless integration of metering ICs and reliable cellular data recovery for your solar cooker." I am waiting on chat to discuss more and I am willing to start it now. Best Regards, Zain Abbas

@SidUSA

Hi, Quantum Code Solutions is ready to take on this single-board PCB and firmware development to streamline your induction cooker monitoring system. The core challenge in moving from a multi-device prototype to a unified PCB often lies in noise isolation between the mains metering IC and the cellular antenna, which we will address through careful ground plane separation and shielding. Our team will utilize a robust FreeRTOS architecture to handle high-priority energy sampling while managing the asynchronous cellular batch uploads and SD card operations. We recently completed a similar industrial IoT project involving power monitoring and GSM connectivity where we implemented a fail-safe data recovery system that utilized a local SQLite buffer on an SD card during outages. That solution handled batch uploads via HTTPS to a cloud endpoint and included a seamless OTA update mechanism using a dual-partition flash layout for safety. We will deliver complete KiCad design files along with optimized firmware that manages the calibration of your metering IC and ensures the backlog pushes correctly once service returns. Reach out to discuss the component lead times and final hardware footprint requirements. Best regards, Quantum code solutions

@antonk52

With over a decade of experience in a variety of technologies, I've had the privilege of working on projects similar to yours. Not only am I adept at web and mobile development, but I also possess an advanced understanding of Electronics and PCB Layout. My skill set is incredibly broad, which allows me to provide end-to-end solutions with unparalleled efficiency. Client satisfaction is my highest priority, and completing your project to the most exacting standards is my commitment. When it comes to PCB and firmware development, I understand every facet involved in the process; from design and layout to choosing the right components that not only perform optimally but also contribute to your cost-effectiveness. Your requirement for easy data logging and cellular upload alignment makes me more than suitable for this task given my proficiency in languages like Arduino/PlatformIO, for firmware development. Lastly, as someone who's well-acquainted with Cloudflare Worker endpoints and has experience in setting up similar OTA update systems, you can have full confidence in my ability to meet your acceptance criteria. Let's connect soon so we can discuss timelines and any potential component lead-time constraints beforehand. I appreciate you considering me for this empowering project!

@alexsanderg3

Can your system reliably store energy + temperature data during outages and sync it without loss once connectivity returns? That’s the real challenge here—not just measurement, but ensuring data integrity, offline recovery, and stable OTA updates. I’ve solved this before in an ESP32-based energy monitoring system with SD logging, MQTT/TLS, and OTA, where network instability was a key issue. I can design a production-ready PCB (KiCad) with proper mixed-signal layout (metering IC + thermocouple + cellular + SD), and develop clean FreeRTOS-based firmware (metering, logging, upload, OTA). My experience with low-noise analog + RF coexistence ensures accurate readings and stable communication. You’ll get modular Arduino/PlatformIO code, full manufacturing files, and a clear calibration guide. Milestones (10–14 days) 1, Req + architecture + components 2,Schematic + review 3, PCB layout + Gerbers/BOM 4, Firmware (logging + FreeRTOS) 5, Cellular + HTTPS + OTA + testing 6,Final delivery + docs I can also highlight component lead-time risks early to avoid delays

@rfandelectronics

Hello sir/madam, We are RF and electronics engineers with over 5 years of experience in antenna and PCB design, as well as microcontroller programming. We can assist you in all areas of electronics and RF. You can trust us to design your project with the highest quality and at the lowest price. We look forward to your message so we can send you our previous work. Thank you.

@grayseng

Hello, I can design the complete single-board solution for your solar cooker energy monitor, covering both PCB hardware and firmware development. The hardware will integrate a mains energy metering IC, thermocouple interface, SD storage, and cellular module into a compact PCB ready for fabrication. The layout will prioritize safe mains isolation, signal integrity for the metering circuit, and stable power delivery for the cellular modem. Firmware will be structured as a single PlatformIO/Arduino project using FreeRTOS, separating tasks for metering, SD logging, cellular communication, and OTA updates. The system will buffer measurements locally and reliably upload batches via HTTPS, ensuring data recovery after network outages. Deliverables include: • Full schematic and PCB layout (KiCad/EasyEDA) • Gerber, BOM, and pick-and-place files for fabrication • Firmware with energy metering, SD logging, batch upload, OTA, and error handling • Calibration guide for the metering IC • Support during manufacturing via three follow-up meetings

@nalaf3

Proposal 2 – Embedded Systems Focus Hello, I specialize in embedded IoT devices that combine sensing, data logging, and cellular connectivity, and your solar cooker monitor fits well with that experience. The solution will integrate: • Energy metering IC for mains measurement • Thermocouple interface for temperature sensing • SD card storage with periodic logging • Cellular modem with secure HTTPS batch uploads Firmware will use FreeRTOS task separation to ensure stable operation: • Energy measurement task • Temperature acquisition • SD logging every 2 minutes • Cellular upload every 2 hours with offline recovery buffering • OTA update support The final design will be manufacturing-ready with complete fabrication files and documented calibration steps.

@noahj69

Hi, I can design your single-board solar cooker energy monitor, covering both PCB design and firmware development. Scope includes: • PCB schematic and layout in KiCad or EasyEDA • Integration of energy metering IC, thermocouple interface, SD card, and cellular modem • Manufacturing outputs: Gerbers, BOM, pick-and-place files • Firmware with FreeRTOS tasks, SD logging, HTTPS batch uploads, OTA updates, and offline recovery I will also provide a calibration guide for the metering IC and assist during production through the scheduled follow-up sessions.

@ulisese

Hi, I can design your single-board solar cooker energy monitor, covering both PCB design and firmware development. Scope includes: • PCB schematic and layout in KiCad or EasyEDA • Integration of energy metering IC, thermocouple interface, SD card, and cellular modem • Manufacturing outputs: Gerbers, BOM, pick-and-place files • Firmware with FreeRTOS tasks, SD logging, HTTPS batch uploads, OTA updates, and offline recovery I will also provide a calibration guide for the metering IC and assist during production through the scheduled follow-up sessions. Proposal 4 – IoT Product Development Tone Hello, Your goal of replacing a multi-device prototype with a single integrated monitoring board is exactly the type of embedded IoT system I develop. The board will combine power measurement, temperature sensing, data storage, and cellular communication into a compact PCB designed for reliable long-term operation. Key implementation points: • Proper isolation and filtering for mains energy measurement • Efficient SD logging every 2 minutes with wear management • Reliable HTTPS batch upload via cellular with automatic retry logic • OTA firmware updates for field maintenance The firmware will be organized under FreeRTOS so each subsystem runs independently and remains stable even during network interruptions.

@alicej22

Hi, I’d be glad to help turn your current prototype into a production-ready single-board device. I can design the PCB and embedded firmware so the board measures induction cooker energy, records temperature via thermocouple, logs the data to an SD card, and periodically uploads batches through the cellular connection. The firmware will handle: • Scheduled logging • Offline data buffering during network outages • Automatic backlog upload once connectivity returns • OTA updates and clear error reporting You’ll receive all design files, source code, and documentation, along with support during fabrication and integration.