Modify PCB Design

@sahildogra222

Hello " Lets Gets Started, You are looking for Modify PCB Design I know you have several tempting proposals here, but I guarantee you to be impressed by my work. I have various skills in Manufacturing Design, Solidworks, 3D Rendering, 3D Design, Mechanical Engineering, 3D Modelling, AutoCAD, CAD/CAM, Product Design and 3D CAD. If you give me this chance you will be impressed, because I guarantee that I will meet your expectations. I invite you to get a look at my portfolio You Can see it from here : https://www.freelancer.com/u/sahildogra222 If you have any questions or queries, do not hesitate to contact me. I hope to start working with you. With regards! Sahil

@sakshis576

As someone who has been working tirelessly on PCB design, I'm confident that I can provide you with the updated schematic, PCB layout, and production files you need. My experience in the field will be an invaluable asset in reviewing and modifying your existing design. Moreover, I have the necessary knowledge to identify your current ESP32 variant and GSM module type. Achieving your desired expansion interface is my priority, and maintaining the existing board functionality, specifically the GSM and external functionalities will definitely be considered in my design modifications. I am also well-versed on using small screw terminals and providing clear silkscreen labels for all connections to enhance convenience when using the board. Best regards, Sakshi masih

@mzdesmag

Hello sir, Did go through your job description and glad to share that I have enormous experience in working with Modify PCB Design I'm a seasoned programmer and Engineer with quality experience in Flutter, React, Node.JS, SpringBoot, Frontend and Backend Development, Python, Matlab, R studio, C, C++, C#, OpenCV, OpenGL, Tesseract OCR, google vision, Statistical programming/R progamming data analysis Computing for Data Analysis Time Series & Econometric, Machine learning, AI, Deep learning, Matlab and Mathematica, 3D modeling, CAD/CAM,AutoCAD, 2D, Architectural Engineering, SolidWorks, Unity 3D, PCB, Electronics, Arduino, Automation, Embedded and Firmware , IOT, Electrical/Mechanical Engineering I am a TOP Rated Freelancer, and you can check my reviews here as well: https://www.freelancer.com/u/mzdesmag. Looking forward to potentially working together on this project. Thanks and Best regards, Adekunle.

@Mahihassi

As an accomplished Electrical Engineer specialized in firmware development, PCB design, and complete IoT product engineering, I am confident about being the perfect candidate for your project. With immense proficiency in various microcontrollers and embedded systems including ESP32 - the core component of your project, I can effectively analyze and modify the schematic to ensure compatibility and functionality without impacting existing board aspects. Having successfully designed numerous IoT boards combing hardware and software with intelligent connectivity, I am well-acquainted with leveraging the spare pins safely while incorporating new interfaces like your required 3.3V, GND, spare GPIOs, and an ADC-capable analogue input. My track record of delivering robust embedded solutions within budgets will be advantageous here as well. Moreover, creating clear pinout summaries and properly labeling terminals is another area where my expertise shines.

@engrusmanfaiz

Dear Sir, I can review and safely modify your existing PCB without disturbing current functionality. First, I will identify the exact ESP32 variant, GSM module, and verify all used vs spare GPIOs. I will ensure selected expansion pins do not conflict with boot, flash, USB, or GSM operation. The new interface will include 3.3V, GND, 4 GPIOs, and 1 ADC pin with proper protection and routing. I will use compact screw terminals and add clear silkscreen labeling for reliability in use. Power integrity and signal isolation will be checked to avoid noise or instability. Deliverables will include updated schematic, PCB layout, Gerbers, and BOM if needed. I will also provide a clean pinout summary for easy integration. Timeline: 3–4 days after receiving design files. Ready to start immediately.

@macroenergy

As an experienced electrical engineer with a specialty in PCB design, I believe my diverse skill set makes me the best fit for your project. With an extensive background in power electronics and renewable energy, I am well-versed in complex designs like yours that require a careful balance of functionalities. My proficiency in Altium, Orcad, Matlab, and Easyeda also positions me for your PCB schematic review and modification. Moreover, my prior experience with ESP modules including the ESP32 variant and GSM module types is directly applicable to your project, giving me a unique understanding of their specific requirements while expanding the existing design. I can guarantee that none of the new connections or functions will interfere with the existing system. In conclusion, I bring not just a solid foundation in electronic engineering to your project but the added bonus of an expertise in embedded systems. My approach to product design has always been customer-centric and detail-oriented while keeping quality and functionality paramount. Given the opportunity, I promise a meticulously modified PCB design that adheres to all your specifications and advances the performance of your current system without compromising any existing functionalities.

@kingch91

Hi, I have read and understood your requirements. I have experience of more than 7 years as an embedded software engineer and product lead, I can provide you with end-to-end solution for this project from your idea to its actualization and development; or anywhere in between. I have extensive hands-on experience with the following technologies, platforms and programming languages and PCB designs: PCB Platforms: Altium Designer, KiCAD, EagleCAD and few others ARM: NRF52, STM32, ESP8266, ESP32 Other boards: Arduino, Particle Wireless Protocols: BLE, 802.15.4 (OpenThread & Zigbee), WiFi, GSM SIM800 Other protocols: HTTP Development IDEs: Keil, Arduino, Visual Studio Programming Languages: C, C++, python You can see our portfolio/ reviews and feedback regarding automation projects. Please send a message in chat for further discussion. Thank you.

@kashiffaiz3

Hello, With the project being a PCB design modification requiring precision and adherence to specifications, my skills as a 3D Modeler, especially using SolidWorks, would be perfectly suited to your needs. I understand the importance of maintaining board functionality while incorporating new features and connections, which aligns with your requirement of keeping existing board functionalities unchanged. In your project description, you emphasized the need for clear labelling on the PCB silkscreen and I assure you of meticulous attention to detail in this aspect. In addition, my experience in 3D Model optimization for printing guarantees thoroughness which is of utmost importance in your project requirements such as avoiding conflicts with existing functions and maintaining a 3.3V logic for I/O. My 5 years of professional experience and proven track record in delivering print-ready models with exceptional quality directly translate into the delivery I can offer you for this project. Collaborating closely has always been my approach and I look forward to building a strong partnership where we can turn your ideas into tangible realities that surpass expectations. Thanks!

@StarSpark3D

As an experienced 3D Modeling and Printing Specialist, I excel at analyzing existing designs and making precise modifications per my clients' specifications. I've worked extensively with mechanical parts, industrial components, and functional prototypes, which equips me well to understand the intricacies of your PCB design. Moreover, my proficiency in utilizing 3D software such as SolidWorks and AutoCAD allows me to tackle complex electrical designs seamlessly. What sets me apart is my robust command over the circulation between design and print stages. Applying this circular workflow approach, I can develop a revised PCB Schematic, Audit layout design, BOM and send production files that precisely cater to your expanded demands while keeping the existing board functionality untouched.

@ssumitkumar7800

As an experienced freelancer with a knack for designing and modifying, I'm confident I can bring great value to your project. I have a comprehensive understanding of PCB design using software like Altium, Eagle, Orcad and keen to learn new methods like Ki Cad and Gerber file. With my dedication and attention to detail, I will ensure your PCB is not only updated and aligned with your specifications but also, highly functional and manufacturable. My knowledge in electrical engineering combined with my 3D architectural design background provides a unique perspective on your project. Additionally, my grasp of different code languages such as C++ makes me proficient in reading and making sense of different pinouts.

@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.

@engrhasan01

Hi, Are you looking for a clean, safe PCB revision that adds a reliable expansion interface to your existing ESP32 + GSM + solar power system without affecting current functionality? I’m a PCB/Embedded Systems Engineer with 5+ years of experience in ESP32-based IoT hardware design, GSM integration, power management systems, and production-ready KiCad/Altium workflows. Approach • Design Review First: Carefully verify current ESP32 variant, GSM module type, and existing pin mapping from your schematic/PCB files • Pin Safety Analysis: Identify GPIOs that are safe for expansion (avoiding boot strapping pins, flash lines, GSM UART/SPI conflicts, and power-sensitive pins) • Expansion Design: Add a clean interface using 3.3V logic with 4 GPIO + 1 ADC + power rails • Hardware Protection: Ensure signal integrity and avoid interference with GSM and power subsystems • Mechanical Integration: Add labeled small screw terminals with proper spacing and silkscreen clarity Deliverables • Reviewed schematic with comments and corrections • Updated PCB layout with expansion interface added • Production files (Gerbers, drill files, BOM, pick-and-place) • Clean pinout map (terminal → ESP32 GPIO mapping) • Short design note explaining pin selection and constraints If you share the current KiCad/Altium files, I can first audit the ESP32 variant and pin usage before making any modifications so we avoid redesign risks. Best regards, Hasan

@graphicsexpert07

Hi, I am available to START WORK RIGHT NOW! Please take a moment to review my profile and previous original works.. https://www.freelancer.com/u/graphicsexpert07 I am proficient in Adobe Photoshop Blender Autodesk Fusion360 AutoCAD Adobe Illustrator Adobe InDesign Mailchimp Microsoft Office programs Figma Canva and Adobe XD with over 10 years of experience..

@soniaer987

Hello, I can review your existing PCB design and implement the required expansion interface while keeping all current functionality unchanged. I will: * Identify the exact ESP32 variant and GSM module used * Analyze the schematic/PCB to determine safe, unused GPIOs * Select 4 GPIO + 1 ADC pin that do not conflict with boot, flash, GSM, or existing functions * Add a clearly labeled screw terminal interface (3.3V, GND, GPIOs, ADC) * Ensure all signals are strictly 3.3V logic compliant Deliverables: * Updated schematic * Updated PCB layout * Production-ready Gerber and fabrication files * Clean pinout summary mapping terminals to ESP32 pins I have experience designing and modifying ESP32-based boards with GSM, power management, and solar charging systems, ensuring stable and production-ready designs. I can start immediately and deliver quickly after reviewing your current files. Timeline 4 days. Let me know if you can share the existing design files.

@MicroKid

Hi, I have checked your files; the designer put bulk capacitors close to GSM module, it is good. But power tarces are so thick and many "clearance violations" are there. Also it should be bettter it the PCB would be 4 layers. I have extensive experience in PCB design (Protel, Altium, KiCAD) and embebdded systems (PIC12, 16, 18 seires, STM32, MSPM0C1103, ESP32, and RP2040), with over 15 years. My professional experience as a freelancer have equipped me with the skills necessary to excel in reviewing your design (included ESP32 and GSM). Having worked on numerous industrial applications, I am confident in my ability to deliver a design that meets your needs efficiently and effectively. I am eager to bring my expertise to your project and ensure its success. Thank you for considering my proposal. I look forward to the opportunity to contribute to your project.

@jowayne77

Hello, As an experienced electrical engineer specialized in hardware design, I'm well-versed in the modification and optimization of PCB designs. I understand your need for a thorough review of your current board and I will ensure precise identification of the ESP32 variant, GSM module type, and available expansion pins. With an excellent command over AutoCAD, I can effortlessly translate our analysis into updated schematics, PCB layouts, and production files. Moreover, my 7+ years in structural design has fostered attention to detail that will guarantee the terminal labels on the PCB silkscreen are clear and concise. Understanding the significance of preserving original functionalities while increasing the potential of a design, I will take all necessary precautions to ensure that new IOs do not interfere with booting, flashing, or any existing operations. I am confident I have both the skills and passion required to not only meet but exceed your project requirements. So why not choose me to handle this project? Thanks!

@annap143

Dear Client! I am writing to express my interest in the opportunity to submit a bid for your project. As a professional engineer with extensive experience in CAD/CAM, 3D Rendering, Solidworks, Mechanical Engineering, AutoCAD, Manufacturing Design, Product Design, 3D Modelling, 3D Design, 3D CAD, I am confident in my ability to deliver high-quality results that meet your project requirements. My background includes successfully managing complex projects from conception to completion, ensuring adherence to timelines and budgets. I am committed to utilizing innovative solutions and sustainable practices to enhance project efficiency and effectiveness. I look forward to the possibility of collaborating with your team to bring this project to fruition. Thank you for considering my bid; I am eager to discuss how my expertise can contribute to your goals. For more details Chat with us Anna P.

@atikmurtaza

Hi, I’ve reviewed your project and understand you’re looking for a careful review and modification of an existing ESP32/GSM PCB while keeping the current solar charging, JST battery, and JST LED functions unchanged. I can audit the schematic/layout first to confirm the exact ESP32 variant, GSM module type, and which pins are genuinely safe for expansion without affecting boot, flash, USB, or modem operation. I’ll add a compact screw-terminal expansion interface with 3.3V, GND, four GPIOs, and one ADC-capable input, then clearly label every terminal on the silkscreen and provide a concise ESP32 pinout summary. Deliverables will include the updated schematic, PCB layout, and production files ready for review/manufacture. Which PCB design tool was the original project created in, and can you share the schematic/layout source files along with any current production files? Best regards, Atik

@davide203

Hi, I can review your existing temperature.kicad_pcb and modify the PCB without disturbing the ESP32, GSM, solar charging, battery, or LED functions. I’ll trace the current routing first, identify the exact ESP32/GSM parts from footprints and nets, then select only safe 3.3V pins that won’t affect boot, flash, USB, GSM, or existing behavior. Scope: - Review current PCB and confirm ESP32 variant, GSM module, and available spare pins - Add screw-terminal expansion for 3.3V, GND, 4 GPIO, and 1 ADC input - Update schematic, PCB layout, silkscreen labels, and production files - Provide a clear pinout summary mapping each terminal to the ESP32 pin I’ll need any original KiCad schematic/project files and libraries if available; if not, I can work from the PCB file and carefully reconstruct what’s needed. Best regards, David