Custom 48-pin MCU Controller PCB Design

@amelectronics

Hi, I have experience in designing Circuits and can complete your project. I have expertise in the following: 1- Designing schematic and PCBA 2- Ordering the PCBA and getting boards manufactured. 3- Writing firmware for the PCBA to make sure everything works as expected. 4- I can also develop smartphone apps to communicate and control the hardware. If you wish we can discuss in chat. Thank you.

@macroenergy

With over a decade of experience in electronics and embedded systems design, I am confident about my ability to deliver on the requirements of your custom 48-pin MCU controller PCB design project. In particular, my extensive knowledge in Microchip's C programming will enable me to produce an efficient and effective firmware that meets your specific needs. Regarding the hardware, my expertise in PCB layout design extends to integrating multiple sensors and devices with minimal interference through optimized routing and strategic component placements. In terms of software, I'm well-versed in decoding input values from various sensors and working with both digital and analog technologies. To streamline the project execution, I propose adopting a comprehensive approach encompassing schematic design, PCB layout, prototyping, firmware development, and an assembly/connection guide. This approach ensures a seamless flow between different stages of product development, minimizing revisions and enhancing overall efficiency. In conclusion, choosing me for this project would secure the services of a seasoned professional who not only comprehends your detailed requirements but can also surpass them. My previous works have been characterized by adherence to strict timelines without any compromise on quality, a trait I would extend to your project as well.

@mairajali11

Hello! I'm Mairaj Ali, a seasoned electrical engineer skillful in PCB design and microcontroller programming. With 8+ years of experience, I specialize in transforming complex requirements into elegant and functional PCBs that incorporate all your desired components. My proficiency extends to leveraging the strengths of popular platforms like Eagle, Altium, KiCAD, and EasyEDA to develop robust designs. In similar veins, I’ve successfully executed several analogous projects that parallel your unique motherboard needs. One particular example includes designing and programming a microcontroller-based system controlling multiple sensors, displays, inputs/outputs utilizing different protocols such as I2C, UART for communication and GPIO for control. My knowledge in sensor management, display driving and firmware development will ensure an efficient circuit with proper signal interference handling on crowded board signals I adhere to a standard workflow process: starting from schematic design & component selection, PCB layout implementing best practices ( BOM & Gerbers), prototyping & hardware debugging if needed ending with firmware development and testing.

@Adeel2k14

Hi, I’m a PCB Design Engineer with 8+ years of experience in embedded hardware, PCB design, and firmware development using STM32, ESP32 and Microchip MCUs. I can develop the complete motherboard from schematic to production PCB and firmware, including sensor interfaces, multiplexed seven-segment displays, I2C LCDs, touch keypad, flowmeter interrupts, MOSFET-driven 12V solenoids, relay control, thermal printer UART, and ICSP programming. My workflow is: requirements review → schematic → component/pin verification → PCB layout & DRC → prototype → firmware → hardware bring-up/testing → Gerbers/BOM/P&P and documentation. I have experience with Altium, KiCad, MPLAB X, XC8, and Microchip-based embedded systems. I can also recommend the MCU after reviewing the required GPIO, ADC, timers, communication interfaces, and memory. I’d be happy to review your exact sensor/display part numbers and provide a detailed implementation plan. Best regards, Muhammad Adeel

@tshibsamuel477

Hi there, I have carefully reviewed your complete motherboard requirements, including the Microchip 48-pin MCU, seven-segment displays, oxygen and pressure sensors, flowmeter, touch keypads, I2C LCDs, water-level sensing, solenoid valves, thermal printer, relay control, and ICSP programming. I have already worked with all the technologies and components involved in this type of system, including Microchip MCUs, MPLAB X firmware, ADC/I2C/UART interfaces, pulse interrupts, multiplexed seven-segment displays, MOSFET-driven 12V loads, relays, sensors, and mixed-signal PCB design. I can handle the complete development from schematic and PCB layout through BOM, Gerbers, Pick & Place, fully commented firmware, and the external connection guide. I will also ensure proper power distribution, protection for inductive loads, reliable grounding, and clean separation between sensor and actuator sections. Given my mechatronics, embedded firmware, and PCB design experience, I can complete this efficiently and faster while keeping the design robust and production-ready. Please send me the exact component datasheets and required operating logic, and I can start immediately. Best regards, Samuel tshibangu

@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 that has a custom Microchip TQFP-48 motherboard, multiple displays, sensors, solenoid valves, relay and thermal printer. I loved the combination of PCB design and complete firmware integration. What do you think if I handle the full schematic, PCB layout and MPLAB X firmware as one integrated solution? I have 15+ years of experience in embedded systems, custom PCB design, industrial automation and C firmware. I can select a suitable Microchip MCU based on the required I/O, ADC, timers, interrupts, UART and I2C resources, while keeping the design cost-effective and production-ready. For the seven-segment displays, I can implement efficient multiplexing or dedicated driver ICs depending on the final MCU pin budget and display current requirements. The two I2C LCDs can share the I2C bus with proper addressing, while the flowmeter will use an interrupt/timer-based pulse measurement for reliable flow calculation. I will design the MOSFET/driver stages for the 12V solenoids and motor relay with appropriate flyback protection, integrate the sensors and keypad, and provide thermal-printer UART communication. The firmware will be structured, fully commented, and easy to maintain. Deliverables will include schematic, PCB/Gerbers, BOM, Pick & Place, MPLAB X source code, programming header, assembly/connection documentation, and prototype/debug support. Best regards, Hamza

@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

@danish2051

I am an Embedded Systems and PCB Design Engineer with experience in Altium Designer, Kicad, Easyeda, Protious and custom hardware development. I can design your PCB from schematic to production-ready files, including: • Schematic Design • PCB Layout • Component Selection • Design Rule Check (DRC) • Gerber Generation • BOM Preparation • Manufacturing Support (JLCPCB, PCBWay, etc.) I have experience with ESP32, STM32, sensor interfaces, power supplies, RF modules, Ethernet, and industrial electronics. Please share the project requirements, schematic (if available), board dimensions, and any special requirements. I can start immediately. Looking forward to working with you.

@shadabkhan92

As an experienced AI-focused freelancer, I may not have direct examples of similar custom PCB + firmware projects, but that doesn't mean I'm not a great fit for your 48-pin MCU Controller design. My expertise in designing and crafting infrastructure around AI systems impressively aligns with your project's complexity and specificity. This includes integrating predictive ML models into your existing workflows, reading live sensor data, and making real-time decisions - capabilities that will be invaluable for your water management system. Notwithstanding the project's novelty to me, my profound knowledge in C Programming, Electronics, Embedded Systems, Micro-controllers, and PCB Layout enables me to quickly understand circuitry requirements and strategies for driving multiple I2C devices like yours. I propose the Microchip dsPIC33EP128MC202T-I/SP model as your best choice for its unique blend of performance and efficiency making it well-suited to handle multiple peripherals with ease.

@mcollinscalz

Hi there! Proposed MCU: PIC18F47Q10 or PIC18F47K42 (TQFP-48). High pin count, robust hardware peripherals (I2C, UART, multiple Timers/Interrupts), and native MPLAB X / MCC support make it ideal for multi-sensor integration. Technical Approach: Seven-Segment Displays: Driven via dedicated I2C/SPI display driver ICs (e.g., HT16K33 or MAX7219) to conserve MCU I/O pins while handling 13 total digits with flicker-free multiplexing. Dual I2C LCDs & Sensors: Managed via hardware I2C with distinct slave addresses (or an I2C multiplexer like TCA9548A if addresses overlap). Power & Actuators: Low-side N-channel MOSFET drivers with flyback diodes for 12V solenoids/relay; hardware timer capture for flowmeter pulses; UART for printer. Typical Workflow: Schematic & Layout: KiCad/Altium design with isolated high-current 12V driver paths from sensitive analog sensor traces. Firmware: Modular C in MPLAB X using non-blocking state machines and interrupt-driven IO. Delivery: Gerber set, Pick & Place, BOM, commented source, and connection guide. I have engineered multiple custom PIC/Microchip boards integrating thermal printers, sensors, and inductive load drivers. Ready to inspect your component datasheets and get started!

@Santoshchaulaga

Hello, I am Santosh Chaulagain, a professional Electrical Engineer and PCB Designer with over 7 years of experience in schematic design, PCB layout, and embedded systems, including ESP32, IoT devices, analog and digital circuits. I have successfully completed multiple projects for clients worldwide, delivering reliable and manufacturable designs. I have carefully reviewed your project requirements and I am confident that I can provide a high-quality solution tailored to your needs. My expertise includes PCB design using industry standards, component selection, BOM preparation, Gerber generation, and design optimization for cost and performance. I always ensure that my designs are fabrication-ready and tested for reliability. I focus on clear communication, timely delivery, and customer satisfaction. I am happy to discuss your project in detail and provide revisions until the final result meets your expectations. Looking forward to working with you. Best regards, Santosh C. Electrical Engineer | PCB Designer | ESP32 & IoT Specialist

@alluankit01

Hi, I can design the complete Microchip-based controller PCB and develop the MPLAB X firmware for all listed sensors, displays, valves, keypad, printer, and motor control. I have experience with MCU controller boards, mixed analog/digital interfaces, MOSFET/relay outputs, I2C sensors, UART peripherals, pulse inputs, and embedded C firmware. I propose the PIC18F57Q43, subject to final I/O/peripheral mapping and your component datasheets, because it provides a strong peripheral set and enough flexibility for this multi-interface controller. My approach: • Complete schematic + power/protection design • Multiplexed seven-segment driving using transistor/driver stages • Shared I2C bus with address verification for both LCDs/sensors • Interrupt-based flowmeter counting • ADC/digital sensor acquisition • MOSFET control for 3 solenoids • Relay/motor driver circuit • UART thermal-printer interface • ICSP programming header • PCB layout, DRC/ERC and production checks • Gerbers, BOM and Pick & Place • Fully commented MPLAB X C firmware • Assembly/connection guide Workflow: schematic → review → PCB layout → manufacturing files → firmware → client-side prototype testing → revisions. I work remotely on design and firmware; physical fabrication/testing can be performed on your side with my debugging support. Best regards Ankit

@Abror86

Hi-Abror Here From Uzbekistan. "Custom MCU Controller PCB And Firmware" - You want to build a reliable 48-pin Microchip MCU board integrating sensors, displays, valves, keypad, printer, and relay control. I can design the schematic and PCB layout, select a suitable Microchip MCU, manage I2C devices, displays, sensor inputs, and protected outputs. I will develop fully commented MPLAB X C firmware, handle flowmeter interrupts, UART printing, ICSP programming, Gerbers, BOM, Pick-and-Place, assembly documentation, and testing. Can you provide the exact sensor, display, keypad, printer, and relay part numbers for compatibility review? Looking forward to working with you.

@nichitav7

Hello, I have developed mixed-I/O controller boards combining MCUs, sensors, displays, motor/relay drivers, UART/I2C peripherals and production firmware, including industrial and servo-control systems. For this design I would propose the dsPIC33AK256MPS205, 48-pin TQFP, because it provides ample GPIO/peripherals, ADC, timers, UART/I2C, interrupt capability and standard Microchip ICSP while leaving margin for future firmware expansion. For the 13 seven-segment digits, I would avoid consuming MCU GPIO directly and use serial drivers/shift registers with transistor digit drivers and timer-based multiplexing. The two LCDs and compatible sensors can share I2C when addresses are unique; otherwise I would add an I2C mux. My workflow is: requirements/pin allocation → schematic → PCB/DRC → manufacturing package → prototype bring-up → MPLAB X firmware → peripheral/system testing → final documented release. Deliverables will include source design, Gerbers, BOM, CPL, fully commented C firmware and connection documentation. Let's discuss. Best regards, Nichita

@Ahmadali9876

I have completed similar custom PCB and embedded firmware projects involving Microchip/MCU-based control boards, sensors, displays, relays, MOSFET-driven loads, UART/I2C peripherals and production-ready PCB documentation. I can develop your complete motherboard from schematic through firmware and final manufacturing files. Proposed Approach I would recommend a Microchip PIC18F TQFP-48 MCU after confirming the required GPIO, ADC, timers, interrupts, UART and I2C resources. The exact MCU will be selected after checking the complete I/O and memory requirements. For the displays, I’ll use appropriate multiplexing/driver architecture to minimize MCU pin usage while maintaining stable refresh and brightness. The two I2C LCDs can share the I2C bus with proper addressing, while the flowmeter will use a hardware interrupt/counter input for reliable pulse measurement. Deliverables Complete schematic and PCB layout Custom component libraries where required Gerbers, BOM and Pick & Place files Microchip MPLAB X firmware in C Sensor, display and keypad interfaces MOSFET drivers for 3× 12V solenoids MCU-controlled 12V motor relay Flowmeter interrupt/pulse processing UART thermal-printer interface 4-pin ICSP programming interface Fully commented source code Assembly and external connection guide Hardware/firmware testing and documentation

@kratika0510

As a technology professional with extensive experience in C programming, custom software and hardware development, I am certain I have the right expertise and skills to successfully complete your 48-pin MCU Controller PCB project. Over the course of my career, I've led teams that have successfully delivered similar complex projects which required a mix of designing schematics and PCB layouts as well as developing and integrating firmware such as yours. Additionally, our approach is always rooted in solving real business challenges with innovative technology solutions. We understand that reliability, scalability and future-readiness are crucial for systems like this. Our ability to work closely with clients has yielded incredible results in the past as it allows us to deeply understand objectives and deliver precise solutions that create measurable business value.

@morne01

?IF YOU'RE NOT HAPPY, YOU DON'T PAY.? Recently, I helped a client design a custom PCB for a complex automation system, achieving seamless functionality and integration. I can assist you in creating a custom motherboard that meets your specifications, ensuring all components work together smoothly. Your need for a clean, professional design that integrates multiple displays, sensors, and controls is clear. I understand the importance of a user-friendly interface and seamless operation. I specialize in PCB design, firmware development, and have extensive experience outside of Freelancer, but I am new to Freelancer! I am confident that my skills in schematic design, layout, and coding will deliver the results you desire. Regards, MORNE.

@mikhailj89

Welcome! I’m here to help you solve problems, achieve your goals, and turn your ideas into digital solutions that deliver real value for your business. I have extensive experience in custom PCB design and firmware development, particularly with Microchip MCUs. For your project, I recommend the Microchip PIC32 series for its robust performance and ample peripheral support, particularly for I2C and GPIO control. My approach for your project includes clear communication and a structured workflow: I start with the schematic, ensuring all components are accurately represented, followed by the PCB layout, and then I move to prototype testing. The firmware will be developed in MPLAB X, efficiently handling the seven-segment displays and multiple I2C devices through structured coding practices. You can expect reliable service and a friendly, professional approach throughout the process. Let’s build something that moves your business forward.