PCB & Firmware Sensor Refresh

@Mahihassi

Hi there! My name's Sardar and I just came across your project. With my wealth of experience in PCB design, firmware development, and extensive knowledge of microcontrollers & embedded systems, I am confident I can make your vision for this project a reality. Having worked on projects that demanded meticulous hardware changes like this one, I understand the challenge involved in sourcing new components and simultaneously maintaining optimal performance. I'm well-versed in Altium Designer, so updating the schematic and PCB won't pose any problem. In the same breath, my proficiency extends to KiCad and various other layout tools that might suit your preference. Given that your project involves an STM32F429VIT6, familiarity with the core platform enhances our compatibility as we work towards re-verifying the ADC configuration and timing to match the new response curve. Moreover, my dedication to providing end-to-end solutions ensures that not only will I take care of hardware updates but also meet your needs for tested binary, updated source code, and renewed configurations. Rest assured, I won't consider this job complete until your board files pass DRC/ERC seamlessly with a clean compiled code. Best, sardar (ceo MHTechFusion)

@iamhamzazaki

With my vast experience and skill set in PCB design, embedded firmware, and IoT product development - honed through numerous successful projects like the one you've outlined – I am confident in my ability to execute this task impeccably. My broad knowledge of C programming, Electrical Engineering, Electronics, Embedded Systems and strong familiarity with the STM32 line would be immensely valuable to your project since that's exactly what it entails. Furthermore, I am experienced in hardware-software integration which aligns perfectly with the PCB and Firmware Sensor Refresh you require. You can trust that I will not only update your schematic and PCB proficiently but also produce high-quality Gerbers and pick-and-place files alongside an updated BOM ensuring nothing is left to chance. With thoroughness being my hallmark, I will diligently review the analogue front-end to ensure optimal biasing and filtering for the newly sourced phototransistors. On the firmware side, rest assured that I will effectively re-verify the ADC configuration and recalibrate the lux calculation routine - leveraging on my experience building scalable IoT ecosystems

@MuhammadUzair16

Hi I am an embedded systems engineer with over 16 years of experience in STM32 firmware and production PCB design. I can take your existing Altium project, replace the EOL light sensors with the new phototransistors, check the footprint/land pattern and analogue front end, then regenerate Gerbers, pick-and-place, BOM and a concise change log after DRC/ERC are clean. On the firmware side I can review the STM32F429 ADC setup in STM32CubeIDE/HAL, confirm sampling and timing against the new response curve, update the lux calibration using your lab measurements, and provide the updated Git source plus a warning-free tested binary. I have handled similar sensor refreshes where the part swap looked simple, but biasing, filtering and calibration still needed careful validation before production. A few quick confirmations would help: are the original Altium libraries included with the project, and do you already have measurement data for both old and new sensors or only the new parts? I can also support prototype bring-up if you want the first board checked after fabrication. Please contact me to discuss details.

@macroenergy

With utmost confidence, I can proudly assert that no one is better suited for this project than me. From your given project title and description, it's evident how my wide-ranging skills align perfectly with your requirements, thereby uniquely positioning me to refresh your PCB and Firmware Sensor. As an experienced electrical engineer specializing in embedded systems and microcontrollers, I have executed diverse projects using STM32 (your existing system), involved in C programming (your firmware requirement) with a firm comprehension of digital and analogue designs which this job heavily relies on. My familiarity with various software, including Altium Designer and KiCAD, makes me optimistic about tackling the hardware aspect proficiently while ensuring an appropriate electrical diagram and smooth transition from end-of-life components to their replacements without compromising system functioning. Meanwhile, I acknowledge the criticality of reviewing the analogue front-end concerning biasing/filtering for optimal sensor performance which I shall deliver without fail. Lastly, my proficiency in MATLAB & Orcad Simulation will inevitably aid us in successful ADC configuration, recalibration of lux calculation routine while relying on your supplied lab measurements to deliver an optimized firmware fitting your new device response curve.I assure you a thoroughly checked binary along with updated code organized in Git format.

@majeed219

With my extensive background in Embedded Systems Engineering and Professional PCB Design, I'm well-suited to meeting your project needs for the PCB and Firmware Sensor Refresh. Having worked on various microcontroller systems including STM32 - similar to your current setup, I'm confident in my ability to efficiently update and generate Gerbers, BOMs, etc. whether it be in Altium Designer or KiCad according to your preference. My varied experience with programming languages including C will be invaluable in handling the firmware changes you need. From analyzing and adjusting the ADC configuration to recalibrating the lux calculation routine, I'll ensure everything aligns with the new sensor response curve while maintaining optimal biasing and filtering for accurate results. Additionally, proficiency with Git version control guarantees a clear and manageable source code history for you. Finally, rest easy knowing that I don't compromise quality or timelines. I will not only deliver updated board files that pass stringent checks but also provide a thoroughly tested binary alongside the updated source. Beyond project completion, I offer free post-delivery support and maintenance because ultimately client satisfaction is my utmost priority. Let's collaborate and bring your vision to life with precision, innovation and on-time delivery!

@engrusmanfaiz

Hello, This project aligns very well with my experience in STM32-based embedded systems, analog sensor interfaces, PCB redesign, and Altium/KiCad development. Since the replacement phototransistors have matching pinouts and similar electrical characteristics, I expect the hardware update to be low risk, but I would still perform a complete review of the analog front-end to verify biasing, filtering, ADC input range, noise performance, and long-term measurement stability. On the hardware side, I can update the schematic and PCB, verify footprints, run ERC/DRC checks, regenerate Gerbers, pick-and-place files, and deliver an updated BOM along with a concise engineering change log documenting all modifications. For firmware, I will review the STM32F429 ADC configuration, sampling timing, filtering, and calibration flow. Using your lab measurement data, I can recalibrate the lux conversion algorithm, validate measurement accuracy, rebuild the STM32CubeIDE project, and provide both the updated source code and tested firmware binary. Deliverables will include updated design files, manufacturing outputs, firmware source, compiled binaries, calibration updates, and verification results to ensure the revised design is ready for production with minimal disruption to the existing platform. I would be happy to review the Altium files, sensor datasheets, and calibration data and provide a detailed implementation plan and timeline.

@hayteekeys

HI, KINDLY READ THROUGH MY PROPOSAL I will deliver fully updated Altium schematic & PCB files plus verified STM32F429VIT6 firmware for your light-measuring device seamless drop-in replacement of the end-of-life sensors with new phototransistors, optimized analog front-end, recalibrated lux calculations, and production-ready outputs. MY APPROACH ✅ Phase 1: Update schematic and PCB in Altium (footprint verification, layout adjustments if needed), review and optimize analog front-end biasing/filtering for the new phototransistors, regenerate Gerbers/BOM/PnP. ✅ Phase 2: Update STM32CubeIDE firmware (ADC timing, lux calibration using your lab data), full verification, build tested binary, and provide clean Git-compatible source with change log. RELEVANT PROJECTS - Successful sensor replacement project on STM32F4 series (phototransistor swap, analog front-end optimization, ADC recalibration and firmware update in Altium + CubeIDE delivered on time) DELIVERABLES - Updated Altium schematic & PCB files - New Gerbers, Pick-and-Place, BOM + change log - Updated firmware source (STM32CubeIDE) + tested binary - Verification report (ADC, lux accuracy, DRC/ERC clean) QUESTIONS 1. Can you share the current Altium project files and existing firmware source now? 2. Do you have the datasheet and lab measurement data for the new phototransistors? 3. When would you like the Phase 1 review (updated schematic + analog front-end analysis)? Ready to start immediately.

@jitendracf

Hello, I can complete both the hardware and firmware updates for your STM32F429-based light measurement board. I have 14+ years of experience in embedded hardware and firmware development, including STM32-based products, analog sensor interfaces, ADC signal acquisition, calibration algorithms, PCB redesign, and production release support. I have recently designed STM32 based PCB for automation industry which had IR sensors interface, DC motor interface, RS485 interface and other Digital inputs/Outputs. For the hardware update, I will: - Update the schematic and PCB for the replacement phototransistors - Review footprints, biasing networks, filtering, and analog front-end performance - Perform ERC/DRC validation - Generate updated Gerbers, Pick & Place files, BOM, and a detailed change log For the firmware update, I will: - Review and verify ADC configuration, sampling timing, and acquisition accuracy - Re-calibrate the lux calculation algorithm using your supplied laboratory measurements - Build, test, and deliver updated source code and compiled binaries - Ensure clean compilation within STM32CubeIDE with no warnings Before providing a fixed quote, I would like to review the existing schematic, PCB files, firmware source, and the datasheets of both the legacy and replacement phototransistors to assess any analog performance differences. I can start immediately and provide a fast turnaround. Best regards, Jitendra Zala

@hamzazayyad

Hello, I can complete both the hardware and firmware updates for your STM32F429VIT6-based light measurement system. With 15+ years of experience in STM32 development, PCB design, analog circuits, and sensor interfacing, I can efficiently update the existing design while ensuring measurement accuracy is maintained. My approach: • Update the schematic and PCB in Altium Designer (or KiCad if preferred). • Replace the obsolete phototransistors, verify footprints, and review any layout impacts. • Analyze the analog front-end to confirm biasing, filtering, and ADC interface performance remain optimal. • Run ERC/DRC checks and prepare manufacturing-ready outputs. Firmware tasks: • Review ADC configuration, sampling parameters, and timing. • Recalibrate the lux calculation algorithm using your laboratory measurements. • Verify operation within STM32CubeIDE using HAL drivers. • Deliver updated source code, Git-ready project files, and tested binary. Deliverables: • Updated schematic and PCB files • Gerbers, drill files, pick-and-place, and BOM • Change log documenting all modifications • Updated firmware source and binary • DRC/ERC-clean design ready for manufacturing My background includes STM32-based instrumentation, industrial control systems, sensor signal conditioning, embedded firmware, and production-ready PCB development. I am available to start immediately and can provide a fast turnaround. Best regards, Hamza STM32 Engineer | PCB Design | Embedded Systems

@Ahmed8033

Hello, I am Ahmed Nawaz and have expertise in Electronics Engineering. I have read the description of your task, it's great that the newly sourced parts have same pinout and characteristics, I can design the footprint and update your existing circuit in Altium Designer. On the firmware side, I can double check the code and confirm the configuration with the updated electronic components, feel free to inbox me for more discussion about your project.

@AlexandrGergel

Greetings, I recently helped update a small STM32-based measurement board where an older sensing part had to be replaced without changing the main design too much. The work involved Altium schematic/PCB updates, analogue signal check around the sensor input, and small HAL-side ADC changes so the measured values stayed stable. The main challenge here is not just changing the footprint, but making sure the phototransistor bias/filter values still give clean ADC readings and that the lux routine is recalibrated correctly from your lab data. I can first review the Altium files, sensor datasheets, AFE and ADC setup, then share a first DRC/ERC-clean board and firmware check in about 2–3 days; the full Gerbers, BOM, pick-and-place, Git source and tested binary should be possible in about 5–7 working days after receiving the lab measurements. Please share the original Altium project, old/new sensor datasheets, and the current STM32CubeIDE project so I can check the exact scope. Sincerely, Oleksandr

@shadabkhan92

As an enterprising team with a formidable foundation in electrical engineering and PCB design, we've successfully navigated projects just like yours before. From designing and producing IoT hardware to working with various firmware like the STM32, our experience speaks volumes. Our proficiency operating on cross-boundary projects that blend AI with hardware dovetails perfectly with your need for a refreshed PCB and firmware sensor. In every assignment, we prioritize client satisfaction at each stage of completion- from properly updating schematics and PCB files (in Altium Designer or transitioned to KiCad if you prefer) to generating new Gerbers, the pick-and-place records as well as updated BOMs. We are meticulous in our designs: we will re-verify the ADC configuration to suit the new response curve taking care to re-calibrate the lux calculation routine based on lab measurements provided by you. Execution of jobs is vital to us as much as it is to you - this is evidenced in our diligent approach towards ensuring the updated board files pass DRC/ERC and compiling of code goes without errors or warnings. Finally, we will provide not just a tested binary but updated source codes in Git format garanting continuity even after the delivery of this project. Let's get started on making your project cutting edge yet again!

@TingWang250617

Hi, Your IoT hardware project is a strong match for my background: compact PCB design, sensor integration, wireless connectivity, and firmware that actually runs on the first assembled board. Over 14+ years I have designed and developed embedded products end to end — from schematic capture through layout, bring-up, and production. Recent examples include KiOSK-IQ v1.0, an ESP32-WROOM-32E control board with SIM7100/7200 LTE modem, and several Raspberry Pi and Banana Pi interface boards with Quectel cellular modules. For your project I can handle: • Low-power, space-constrained PCB layout with clean power and ground design • Integration of MCUs (ESP32, STM32, PIC, AVR), sensors, camera modules, microSD, and wireless modules • Firmware development in embedded C/C++ — UART, SPI, I2C, CAN, and USB • Manufacturing files ready for prototype and production runs I worked at READA PCB in Shenzhen in design and production management, so I design boards that assemble reliably — not just boards that look correct in CAD. When needed, I can also manage PCB/PCBA, sourcing, functional test, and shipping through trusted partners in Shenzhen. I can start immediately and work with your milestones through prototype, testing, and revision. Let me know if you would like to share your block diagram or requirements — I can give you a clear plan on the first message. Best regards, Ting

@tangramua

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 C Programming, Electronics, Microcontroller, Electrical Engineering, PCB Layout, Software Development, Embedded Systems, STM32, Altium Designer, Software Engineering 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.     

@tetianam8

⭐⭐⭐⭐⭐ Your project is a great fit for my background in STM32-based embedded systems, mixed-signal electronics, and PCB redesign for component lifecycle management. I have extensive experience updating legacy designs when critical components reach EOL, including schematic/PCB revisions, analog front-end validation, firmware recalibration, and manufacturing package generation. For this project, I can: • Update the Altium design files (or migrate to KiCad if preferred) • Replace the obsolete phototransistors and verify footprint/mechanical compatibility • Review sensor biasing, filtering, noise performance, and ADC input conditioning • Run full ERC/DRC validation and prepare production-ready Gerbers • Update BOM, Pick & Place, and provide a concise engineering change log Having worked extensively with STM32CubeIDE, HAL drivers, ADC-based sensor acquisition, and precision photometric measurement systems, I can quickly assess whether any gain, filtering, or calibration adjustments are needed despite the near-identical replacement devices. I can begin immediately after reviewing the existing Altium files, schematic, BOM, firmware repository, and sensor datasheets, and provide a fast turnaround with complete manufacturing and firmware deliverables.

@yaroslavmark

Hi, I am a senior embedded hardware and firmware engineer with 10+ years of experience in STM32-based industrial and sensor products, delivering 50+ PCB revisions and embedded systems using STM32F4 MCUs, ADC signal processing, analogue front-end optimization, and production firmware validation. Approach: ✅ I will update the Altium schematic and PCB design by replacing the obsolete phototransistors, reviewing footprints, sensor bias circuits, filtering components, and maintaining DRC/ERC compliance for fabrication. ✅ I will validate the analogue measurement chain by checking ADC input characteristics, sampling timing, noise filtering, and recalibrating the lux conversion algorithm using your laboratory reference data. ✅ I will update the STM32CubeIDE firmware, verify HAL ADC configuration, compile clean source code, generate tested binaries, and provide Git-ready firmware with complete documentation. Questions: ✅ I need to confirm the exact replacement phototransistor part numbers, datasheets, and whether the PCB requires only component swaps or any routing/footprint modifications. ✅ Please confirm the current lux calculation method and ADC sampling parameters so I can define the calibration approach accurately. Best, Yaroslav

@sekai1116

As an accomplished Electrical Engineer specializing in Embedded Systems and Firmware, I possess not only the technical prowess but also the versatility to execute your project perfectly. Renowned for my ability to organize and complete projects efficiently, my experience with KiCad, Altium Designer, and STM32CubeIDE positions me as an ideal candidate for this task. I have a reputation for designing robust and reliable electronic solutions, which aligns perfectly with your need to update the schematic and PCB while ensuring optimal performance of the new phototransistors. Analog front-end revision is one of my core specialties, giving me a unique edge in reviewing the filtering and biasing aspects of your sensors too. On the software side, expect a detailed verification of the ADC configuration and timing for the new response curve- an area I have considerable expertise. With this strength, I assure you that your lux calculation routine will be re-calibrated to perfection in line with your lab measurements. Finally, you can count on me to provide tested binaries plus updated source files in Git format, ensuring full clarity for future developments. Hire me for a commitment to quality and an unwavering focus on efficient turnaround. With your goals aligned nicely with my skillset we seem like a natural fit!

@abdurRafiqM

HI, I am an experienced electronics and PCB Design engineer, specialised in use of ECAD software such as Altium Designer, KICAD, EasyEDA, etc. for the the design of electronics and PCB. I will design your projects to meet your Requirements and the industry standard. I do all kinds of circuits such as Power delivery circuit, Sensor Integrated Circuits, wireless control, MCUs etc. I will deliver the following. The Schematics for your Design The PCB for the design Bill of materials(If needed) Gerber, Pick and Place and other manufacturing and assembly drawings needed. Full Support and consultancy till the project is done. Kindly send me message for my previous designs and also so we can discuss further on your project I look Forward to working with you. Best Regards, Abdur-Rafiq

@nevorek

Good day. As you can see in my portfolio i have hardware and firmware projects, including STM32F4. I am equally proficient in Altium and KiСAD. If there's a need to move the project, I can do it. I can continue project in Altium. I'm also familiar with Git - there are projects on GitHub. > compiles without warnings I like to use "-Wall -Wextra -pedantic" because every warning is potential problem in future. The task is clear. The project is interesting.