SAW Welding Controller PCB Development

@tshibsamuel477

Hi there, I have carefully reviewed your requirements for converting the existing Arduino-based SAW welding controller into a compact, reliable, industrial-grade STM32 controller with complete hardware and firmware development. My background in mechatronics, embedded systems, industrial PCB design, motor control, STM32/Arduino firmware, analog sensing, RS485/CAN, and protected 24 V industrial I/O is well suited to this project. I have already worked with the main technologies involved, including isolated digital inputs, protected outputs, voltage/current sensing, encoders, DC motor control, relays/solenoids, industrial communications, and EMI/EMC protection. I can handle the complete development flow: review and migration of the existing Arduino logic, STM32 hardware architecture, schematic and PCB design, firmware development, connector selection, BOM, manufacturing files, debugging, and prototype support. Special attention will be given to isolation, grounding, transient protection, and noise immunity due to the harsh welding environment. Given my skillset, I can move quickly from the existing working prototype to a robust production-oriented controller. Send me a message with the current Arduino code, wiring/schematic, and I/O specifications, and I can start immediately. Best regards, Samuel tshibangu

@hayteekeys

HI, KINDLY READ THROUGH MY PROPOSAL I will convert your proven Arduino SAW welding control logic into a compact, industrial-grade STM32-based controller PCB with full isolation, protection and motor interfaces ready for the harsh welding environment. MY APPROACH ✅ Review existing Arduino logic and migrate cleanly to STM32 ✅ Complete schematic with 24 VDC isolated I/O, analog feedback and motor drivers ✅ Industrial PCB layout with strong EMI/noise protection for welding use ✅ Firmware development, debugging and prototype bring-up support ✅ Full manufacturing package and clear documentation DELIVERABLES - Complete schematic, PCB layout and Gerber files - Production BOM - Firmware source code - Prototype testing and debugging support QUESTIONS 1. Preferred STM32 family and any existing Arduino code/repository available? 2. Target board size and number of motor/relay channels required? 3. RS485 or CAN preferred for communication, and any existing sensor details? Ready to start as soon as the Arduino code and basic I/O list are shared.

@Amidst

Hey there! I’m Alok, A PCB, Circuit and Mechanical designer with a passion for turning ideas into rock-solid, high-performance circuit boards. even expert on Python, C, C++ With nearly a decade of experience, I’ve tackled everything from compact consumer gadgets to complex industrial systems—always with a focus on precision, efficiency, and reliability. # Schematic & Layout Design – Clean, optimized, and manufacturable. # Component Selection & Library Management – No surprises, just the right parts for the job. # Reverse Engineering – PCB cloning, replication, and improvements. # Gerber, BOM & CPL Generation – Ready for seamless production. # DFM & DFA Expertise – Because great design means smooth manufacturing. # Multi-Layer, Flex, & High-Density PCB Design – Whatever the project needs. If you need a PCB and Code that’s efficient, reliable, and built for real-world performance, let’s chat. I’d love to help bring your project to life!

@hamzazayyad

Hello, I saw your project for developing a dedicated SAW Welding Controller, including the conversion from the tested Arduino prototype to an industrial-grade STM32 PCB. I loved the combination of motor control, welding feedback, and industrial I/O. What do you think if we design it with strong isolation and EMI/noise protection from the beginning? I have 15+ years of experience in embedded systems, STM32 firmware, PCB design, industrial automation, and motor control. I have worked on BLDC, DC motor, HVAC, CNC, hydraulic/pneumatic and industrial control systems, including RS485/Modbus, CAN, analog feedback, sensors, relays and protected I/O. For this project, I can review your existing Arduino code and convert the proven logic to STM32, then develop the complete schematic and industrial PCB. I can handle isolated digital inputs, protected outputs, welding voltage/current sensing, encoder interface, AVC, wire-feed and travel motor control, relay/solenoid outputs, limit/fault inputs, communication, and power/EMI protection. I can also provide firmware development, debugging, prototype bring-up, testing, BOM, Gerbers and complete production documentation. I would be happy to review your existing Arduino code and discuss the required I/O and control specifications. Best regards, Hamza

@mzdesmag

Hello sir, Did go through your job description and glad to share that I have enormous experience in SAW Welding Controller PCB Development 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, Statisticaal 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, AutoCAD, 2D drawing, 2D draftingPCB, Electronics, Arduino, Embedded Systems 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.

@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

@cesur135

Having worked on various industrial automation projects, I am well-versed in developing dedicated controllers for specialized applications such as the requirement here for a SAW Welding machine. Being experienced with STM32 and Arduino, I am confident in reviewing your existing Arduino code and seamlessly converting it to an appropriate MCU platform. I empathize with the need for reliable and compact control systems in industrial settings, and I know that my skills will prove instrumental in designing a robust, industrial-grade PCB that meets all your requirements. Moreover, my proficiency in Embedded C/C++, along with my understanding of motor-control systems, lends itself perfectly to this project’s specific needs. Previous industrial projects, from wastewater treatment to energy automation and temperature-based ventilation systems, have equipped me with the technical adeptness crucial for this undertaking – especially in terms of isolated digital inputs/outputs, analog inputs, data communication interfaces like RS485/CAN, and EMI noise protection for welding applications. Throughout my career, I have recognized the value of blending meticulous design with astute programming to guarantee optimal performance from hardware to firmware. My commitment to

@mcollinscalz

Hello my name is Collins, I can successfully transition your Submerged Arc Welding (SAW) controller from an Arduino prototype to a robust, industrial-grade STM32-based hardware system. Designing electronics for heavy welding environments demands rigorous mitigation of high-frequency arc noise and voltage transients. I bring extensive experience engineering high-reliability industrial automation controllers that thrive under severe EMI/EMC conditions. My core technical approach includes: MCU Migration: Cleanly porting and optimizing your control logic from Arduino to a scalable, industrial STM32 platform. Isolation & Protection: Implementing strict galvanic isolation for welding voltage/current feedback and digital I/O, alongside protected 24VDC power rails and robust transient suppression. Motion & Comm Integration: Designing reliable drive interfaces for AVC, wire-feed, and travel motors, paired with encoder inputs, safety interlocks, and RS485/CAN communication. You will receive a complete production package: verified circuit schematics, professional PCB files, Gerbers, an MPN-verified BOM, production-ready Embedded C firmware, and hands-on prototype testing support. I have successfully delivered numerous industrial motor-control and high-noise automation boards. Let's review your existing setup and engineer a dependable, field-ready SAW controller today.

@bojans9

Hi, thanks for sharing the project. To be transparent: although I work across software, backend systems and automation, I don’t take on embedded‑systems or PCB‑development work, including STM32 firmware, industrial‑grade schematic/PCB design, welding‑controller interfaces, RS485/CAN integration, motor‑control circuitry, EMI‑protected layouts, or prototype testing/commissioning. This scope needs an engineer experienced in industrial electronics and welding‑environment PCB design who can convert your Arduino prototype into a robust controller with proper isolation, protection and documentation. They’ll be a better fit for achieving the reliability and safety you’re aiming for. If you ever need help with technical workflow planning or automation strategy, I can assist — but I’m not the right match for this hardware project.

@ssumitkumar7800

Hi, I can help convert your tested Arduino-based SAW welding controller into a reliable, industrial-grade STM32 controller PCB. I’ll review your existing code and control logic, develop the complete schematic and PCB layout, and handle firmware development with a focus on welding-environment noise protection, isolation, and reliable motor control. My scope includes: • STM32 MCU selection and Embedded C/C++ firmware • 24V isolated inputs and protected outputs • Welding voltage/current sensing • AVC, wire-feed, and travel motor interfaces • Encoder, relay, solenoid, RS485/CAN interfaces • EMI protection, connectors, BOM, and Gerber files • Prototype testing, debugging, and documentation I can deliver organized source files, manufacturing-ready PCB data, and firmware with debugging support. Please share your existing Arduino code, circuit details, and I/O requirements so I can review the project and confirm the development timeline. Looking forward to working with you. Sumit Kumar

@mubeenm5026

Being an accomplished software and electrical engineering firm with a wealth of expertise in industrial automation and AI-integrated solutions, we are the perfect fit for your SAW welding controller PCB development project. I lead a team of skilled professionals who have experience working with both STM32 and Arduino platforms, as well as creating complex PCB designs incorporating various interfaces, such as motor control and analog inputs. In terms of motors, we have successfully developed motor-control projects in the past, highlighting our deep understanding of this critical part of your project. Beyond hardware, our proficiency in firmware source code development is another compelling reason to choose us. We are known for writing clean, optimized code that results in efficient and reliable control systems. In addition to our technical expertise, our commitment to agile project management guarantees that we'll deliver your desired outcomes promptly and efficiently. We offer long-term technical support and maintenance which will ensure the reliability of your PCB well into the future. So let's embark on this journey together and transform your Arduino-based prototype to an industrial-grade controller PCB exactly suited to your specific needs!

@hexabitzprojects

Hi, I can convert your tested Arduino SAW welding controller into a **compact, industrial-grade STM32 controller**, covering hardware, firmware migration and prototype support. I have **16 years of embedded hardware/firmware experience** with STM32, Arduino, industrial automation, motor control and custom PCB design. My previous work includes **industrial motor/actuator controllers, pump automation and STM32-based multi-I/O systems**, directly relevant to this project. I can review your existing Arduino code and transfer the proven control logic to STM32, while designing **24 V industrial I/O, isolated inputs, protected outputs, isolated voltage/current feedback, encoder, AVC, wire-feed and travel motor interfaces, relay/solenoid outputs, limit/fault inputs and RS485/CAN**. I’ll pay particular attention to **EMI/noise protection, isolation, grounding, transient protection and PCB partitioning**, which are critical in welding environments. Deliverables include **complete schematic, PCB layout, Gerbers/NC drill, BOM, STM32 firmware/source, programming/debugging support and prototype testing documentation**. Best regards, Subhash Suman Embedded Systems | STM32 | Industrial Automation | Motor Control | PCB Design

@engrsikandarali

Hello, I can help you convert your existing Arduino-based SAW welding controller into a reliable industrial PCB and embedded system. I have practical experience with Arduino, ESP32/ESP8266, Raspberry Pi, Embedded C/C++ and robotics/automation projects. I have worked on an automated washer and dryer machine controller using Raspberry Pi, RS485 communication, sensors, relays and motor-related control, as well as an old-age monitoring system using Raspberry Pi and OpenCV. I have also completed multiple robotics and embedded projects involving sensors, actuators, relays, communication interfaces and PCB design. For your project, I can review the existing Arduino logic, select an appropriate MCU such as STM32, design the schematic and PCB with proper isolation, protection and industrial I/O, and develop/debug the firmware. I can also handle BOM, Gerber/manufacturing files and prototype testing support. I understand that welding environments require special attention to EMI/noise, isolation and protection, so I will design the controller with these requirements in mind. Please share your existing Arduino code and current prototype details so I can review the architecture and suggest the best approach. I am available to start immediately.

@paulpham93

Hello, I have deep experience in STM32-based motor control and embedded firmware for industrial welding systems. I will deliver a complete SAW controller with schematic, PCB, and firmware. I have earned over $300,000 on Upwork under account Paul.P. DevBrix builds industrial embedded hardware and control products. Please review past work at https://devbrix.com. Best regards, Paul. Best regards, Paul.

@Kulkarnipushkar

Hello, I am an Electronics & Telecommunication Engineering student with practical experience in Arduino, ESP32, FPGA, VHDL and KiCad PCB design. I have worked on circuit design, schematic development, PCB layout, component selection, routing, ERC/DRC checking and hardware troubleshooting. I am also currently gaining practical experience in FPGA and embedded development. For this project, I can work with your existing Arduino code and hardware setup and help convert the prototype into a dedicated controller PCB. I can work on the schematic, 24V I/O, analog inputs,PCB layout according to the provided requirements. I will focus on a clean, reliable and well-documented design, especially considering EMI/noise and electrical isolation in the welding environment. I can provide the schematic, PCB files, Gerbers, BOM and documentation based on the available prototype. I would first like to review your existing Arduino code, wiring diagram and hardware specifications so we can finalize the controller architecture before starting the PCB design.

@ostronik

Hi, Greetings from OSTronik India! We are a technology-driven company specializing in Power Electronics and Embedded System Design integrated with Artificial Intelligence (AI) and Mobile Application Development, delivering reliable, industrial-grade electronic and software solutions—from concept to mass production, all under one roof. Our in-house capabilities include R&D, Firmware Development, Hardware Design, Mobile Application(Android & iOS), Prototyping, and Scalable Mass Production, with a strong focus on quality, performance, and cost efficiency. Core Expertise: • Microcontrollers: PIC, STM32, ESP Family, AVR. • Microprocessors: Raspberry Pi • Development Tools: MPLAB X IDE, STM32CubeIDE, Arduino IDE, Atmel Studio, VS Code • Hardware Design: Industrial-grade multilayer PCBs using Altium Designer with optimized power design, isolation handling, and EMI/EMC compliance • Communication Protocols: UART, SPI, I²C, CAN, Modbus, MQTT, LAN, S-Bus, RS-485 Mobile Application Capabilities: • Custom Android & iOS mobile applications for device control, monitoring, and data visualization • Real-time dashboards, cloud connectivity, and secure user authentication • Seamless integration between IoT platforms and mobile apps We have successfully transformed multiple concepts into market-ready electronic and mobile-enabled solutions. We would be glad to share a brief reference video. Let’s schedule a meeting to discuss your requirements in detail. Best Regards, Team OSTronik India

@denizg25

Hi, I have direct, relevant experience for the core of this project - converting/designing an industrial-grade STM32-based controller PCB from schematic to production files. I recently designed an automotive CAN bus I/O control card that included: - STM32-based control logic (migrated from an initial reference design, similar to your Arduino-to-STM32 conversion) - Isolated digital inputs (opto-isolators) and protected outputs - Analog/ADC signal feedback with redundant cross-check reading - 12-24V industrial power input with TVS/PTC protection and EMI/EMC-conscious layout - CAN bus communication - Full schematic, KiCad PCB layout, BOM, and Gerber output This covers the electrical/PCB backbone of your project closely (isolation, protection, EMI handling, CAN/RS485-class communication, STM32 firmware). For the motor-control side (encoder interface, wire-feed/travel/AVC motor drive), I'd approach it as a natural extension of the driver and protection circuit work I've done - happy to review your existing Arduino logic first to scope this accurately before finalizing timeline/price. Given the full scope (schematic, PCB, firmware port, prototype support, documentation), I'd estimate 3-4 weeks for a solid, tested result rather than a rushed one. Happy to share my CAN bus card as a reference. Looking forward to discussing your existing Arduino code and requirements in more detail. Best, Deniz

@maneshkmahesan

I understand that you already have the welding control logic tested on Arduino and need it converted into a reliable industrial controller. My experience with industrial control systems, PCB design, embedded electronics, control panels and field troubleshooting is directly relevant. I can work from your existing Arduino logic to develop the controller architecture, schematic, protected/isolated 24V I/O, analog welding feedback, encoder and motor interfaces, RS485/CAN communication, relay/solenoid outputs and industrial PCB layout. I can also support firmware integration, prototype testing, debugging, BOM and manufacturing documentation, with particular attention to EMI/noise protection required in welding environments.