Compact Handheld Device PCB Design

@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.

@ITECH

With over 20 years of experience designing PCBs for a variety of applications, including handheld devices and IoT projects, I believe I'm the ideal fit for your Compact Handheld Device PCB Design. My expertise in Arduino, Circuit Design, Electronics, Microcontroller, and PCB Layout aligns perfectly with your project needs. I understand the importance of seamlessly integrating all the components onto the PCB while maintaining compactness and proper grounding. Your requirement for mounting the LILYGO TTGO T-Call V1.3 and signal isolation for components like OLED, RFID Reader, USB Type-C Port etc aligns with my strong background in circuit design and impedance matching. Delivering not just a functioning design but also manufacturability is my core strength. In addition to providing you with high-quality schematics, BOM, Gerber files, pick-and-place files for JLCPCB / PCBWay, I can also export STEP files for 3D enclosure design. Let's create a reliable and optimized solution that simplifies your manufacturing process from concept to market while strictly adhering to timelines. I'm eagerly looking forward to collaborating with you on this project!

@mairajali11

As an Electrical/Electronics Engineer with over 8 years of rigorous experience in PCB design and proficient in tools like Eagle, Altium, KiCAD and EasyEDA, I have developed the vital skills that would make me a perfect fit for your Compact Handheld Device project. Not only can I guarantee you a compact handheld form factor design with all components mounted on the PCB eliminating flying wires, but also excellent grounding and trace isolation to prevent any form of signal degradation around vulnerable modules like your RFID antenna connector and GSM module. My professional journey has given me in-depth knowledge regarding PCB design. From designing circuits to prototyping using various tools, every step in your project aligns with my proficiency. I am adept at CAD/Housing Design for PCBs in Fusion360 and delivering Gerber files + BOM + pick-and-place files meeting JLCPCB / PCBWay standards alongside a STEP file for 3D enclosure design. In our collaboration, you can expect more than just skill, as my engineering background also equips me with a problem-solving mindset essential for developing innovative solutions. Your project's need for clear silkscreen labels and proper trace handling around key features can be perfectly addressed by my precision-centric approach. My portfolio speaks volumes about the kind of value and results you can expect from me – it's time we turn your idea into reality!

@markoa7

With a repertoire in PCB design that spans industries and demands, I'm confident that my expertise is tailor-made for your project. My proficiency in creating compact, high-performance printed circuit boards makes me the ideal choice for your handheld device development. Your request for proper grounding and trace isolation, especially around the RFID antenna connector and GSM module have also been areas of focus which would give you a seamless execution from concept to construction with my involvement. Additionally, I've cultivated solid skills in using communication protocols (UART, SPI, Ethernet, USB, CAN etc.,)which would make it easier for various components of your device to communicate effectively. In short, decades of experience in PCB design combined with deep understanding of Arduino usage for Microcontroller programming puts me at the forefront of qualified contenders for this project. I guarantee not only diligence with the board's form factor but also clear labeling which would be critical in ease of assembly and future reference. Additionally, since the vision behind this venture is transforming ideas into reality through meticulous design and development—I believe our goals are mutual and that we will complement each other in this effort. Let's get started on making your Compact Handheld Device a reality!

@nuamansaghir

Greetings, It is an honour for me to assist you. I have gone through your project brief as well as attached photo of your modular system already. Your require system is similar to my previous design and producing your desired product would be much efficient. You can go through my profile to get an idea of my professional approach and customer satisfaction. I have some queries, it would be best if we can work around them first. 1. RDM6300 RF ID reader, you to use module or should I embed it's circuit on PCB? 2. 2 pin connector for membrane switch would be 2mm pin pitch connector as well? 3. Battery will be charged by USB-C and what would be the capacity and voltages you want? 4. Since you already tested this system, will you be sharing pin assignment details and is it possible to change them? Looking forward to hearing from you soon. Best regards, Nuaman Saghir

@hayat38402

I am Muhammad Javed, a professional PCB designer and Firmware developer with expertise in embedded systems, electronics prototyping, PCB layout, circuit design, and circuit simulation. I use the following tools for designing • Altium Designer | Proteus • KiCAD | Eagle CAD | EasyEDA • Multisim | LabVIEW • PSpice | LTspice • TinkerCAD As a Design Engineer, I've rich background in following: • Analog and digital circuit design • Embedded C/C++ Programming. • VHDL | Verilog, Quartus | Vivado • Microcontrollers like Arduino, Raspberry Pi, FPGA, AVR, PIC, STM32 and ESP32. • IDEs like Keil MDK V5, ATmel studio and MPLab XC8. • Communication protocols like SPI, I2C, I2S, CAN, RS232, RS485, etc. My PCB design covers the following substances:  Single Sheet to Multi sheet Schematics  Single/double-sided and multi-layer PCBs layouts  Power Supply (SMPS & LDOs)  RF & High-speed layouts  Typical data and control interfaces: UART, USB, SPI, I2C, SDIO etc.  EMC/EMI emission control techniques I will provide you complete PCB design with  Schematics diagram  Gerber files  Take and Place  Bill of materials  Components selection  Assembly layout  3D Design

@hayteekeys

Hi, KINDLY READ MY PROPOSAL MY APPROACH I will capture the schematic for the carrier board, including the NPN buzzer driver, RTC (DS3231) integration, and USB-C to dev board routing. I will layout the PCB with dedicated footprints for the RDM6300 and T-Call, ensuring the USB-C port protrudes 2mm for enclosure access. I will implement signal isolation, keeping the RFID antenna traces and I2C bus clear of GSM noise to prevent interference. I will place mounting holes and standoffs for the SSD1306 OLED, ensuring a secure mechanical fit above the main PCB. I will generate manufacturing files, including JLCPCB-ready Gerbers, BOM, and a STEP file for your 3D enclosure design. DELIVERABLES Design Package: Complete Schematics and PCB Layout files. Production Files: Gerbers, Drill, Pick-and-Place, and Assembly drawings. 3D Model: STEP file export for mechanical enclosure verification. BOM: Fully costed list with manufacturer part numbers. EXPERIENCE: I specialize in ESP32 carrier boards and handheld electronics, with proven experience in GSM/RFID integration and DFM-optimized layouts. TO START Do you have a preferred USB-C connector part number (e.g., 6-pin or 16-pin)? Should the RTC battery (CR1220) be on the top or bottom layer? Are there specific enclosure mounting points I should include in the layout? I am Ready to start the design and deliver your production files immediately.

@debosx

Hello! I'm a highly skilled PCB Designer with over 10 years of expertise in delivering reliable and efficient PCB designs. I specialize in creating precision designs tailored to client's needs, utilizing top-tier design tools such as Altium Designer, Autodesk Eagle, KiCad, EasyEDA, Siemens PADS, DipTrace, Allegro/OrCAD, Fritzing and Proteus. My goal is always to ensure the highest quality and performance in every project. Core Expertise : • Schematic Capture & Layout Design • Component Selection & Library Management • Reverse Engineering (PCB Replication, PCB Cloning) • Gerber, BOM, and CPL File Generation & Manufacturing Support • Design for Manufacturability (DFM) and Design for Assembly (DFA) • PCB Design & Development (Single, Double, Multi-Layer, Flexible PCBs) Industries Served : • Medical Devices • Telecommunications • Consumer Electronics • Industrial Equipment • Automotive Electronics • Safety and Security Devices Why Choose Me? • Attention to Detail and Commitment to Quality • Strong Communication Skills & Client-Centric Focus • Timely Delivery & Flexible Approach to Meet Project Requirements I would love to help you with your next PCB design project. Feel free to reach out, and let’s discuss how I can bring your ideas to life! Best Regards, Utpal

@manusharma2992

Being an expert in PCB design, I will diligently address each requirement of the project. I have substantial experience with Arduino, Circuit Design, Electronics which will certainly come in handy while handling your project. In addition to this, my expertise in 2D/3D modeling and animation would enable me to provide you with comprehensive deliverables including Gerber files, BOM, pick-and-place files and a STEP file for the 3D enclosure design. I understand the criticality of maintaining proper grounding and trace isolation for components like RFID antenna connectors and GSM module to avoid signal degradation. My past projects have always been well-grounded and isolated to ensure optimal performance. With this in mind, rest assured that your compact handheld device PCB will also be designed leveraging meticulous attention to detail. Lastly, my skillset extends beyond PCB design; you can leverage my understanding of CAD/CAM drawing for clear silkscreen labelling of all the connectors,pins, polarity markings as required. Therefore,choosing me for your project not only provides you with an experienced PCB designer but also offers a multi-dimensional talent ready to take on any other related tasks that may arise during the process.

@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

@electronicsdone

Best Compact Embedded PCB Design Expert ⭐⭐⭐⭐⭐ Hi, Thank you for posting your project, “Compact Handheld Device PCB Design.” I’ve reviewed your requirements and can help design a compact, well-organized carrier PCB that integrates your LILYGO TTGO T-Call module with the OLED display, RFID reader, buttons, buzzer driver, and supporting hardware. I bring 11+ years of experience in PCB design, embedded hardware integration, and industrial electronics, including hands-on work developing compact IoT devices, GSM-enabled boards, and handheld electronics prepared for manufacturing with JLCPCB/PCBWay. ✅ How I’ll Help You Succeed 1. Design a compact PCB layout optimized for the handheld form factor while cleanly integrating the ESP32 GSM module and all peripherals. 2. Implement proper grounding, signal isolation, and routing practices, especially around GSM and RFID signals, to avoid interference. 3. Integrate support circuits for OLED, buzzer driver, buttons, USB-C interface, and optional RTC, ensuring reliable hardware operation. ✅ Before I start, one quick question: Do you already have preferred PCB design software (Altium, KiCad, EasyEDA, etc.) for the project deliverables, or should I choose the most efficient tool compatible with your manufacturing workflow? If you share that, we can align quickly and proceed. Best regards, Prat PCB Must Innovations

@yaroslavmark

Hi, I’m a senior PCB designer with 7+ years of experience creating compact, multi-module boards for IoT and handheld devices. I have designed 40+ custom carrier and breakout PCBs, including ESP32-based modules, OLED displays, GSM antennas, RFID interfaces, and LiPo power systems, all optimized for JLCPCB/PCBWay production and enclosure integration. Approach: ✅ I will first capture the schematic including the LILYGO TTGO T-Call V1.3, OLED, buttons, buzzer, RDM6300, USB Type-C, optional RTC, and battery connector, ensuring proper GPIO mapping and power distribution. ✅ I will lay out a compact PCB (~100×60 mm), optimizing component placement, standoff holes, and trace routing to minimize GSM and RFID interference while maintaining impedance control for sensitive signals. ✅ I will implement proper grounding, decoupling, and isolation between noisy modules and sensitive traces, and add clear silkscreen labels for all pins, connectors, and polarity markings. ✅ I will generate full manufacturing files (Gerber, drill, pick-and-place, BOM) compatible with JLCPCB/PCBWay and export a STEP file for 3D enclosure integration. Questions: ✅ Are there any height constraints for components besides the OLED standoffs that I should account for? ✅ Should the RTC module be included only if spare GPIOs remain after all other modules, or should it always be placed?

@nishanthamahesh

Dear Sir, I am an experienced embedded system developer. I have expertise in designing electronic circuit and advance multiplayer PCB for low-power, low-profile application. I would like to provide my full effort to design an excellent hardware solution for your valuable project. Best Wishes

@ahmedy607

Hello, I can design a **compact carrier PCB** for your handheld device around the **LILYGO TTGO T-Call V1.3**, ensuring clean layout, proper grounding, and manufacturable files. For this project I will: • Design the carrier PCB integrating the **SSD1306 128x64 OLED display**, button connectors, passive buzzer driver circuit, and headers for the core module • Integrate the **RDM6300 RFID Reader** with careful routing and isolation from GSM and power traces • Add a **USB-C connector**, LiPo battery connector (JST-PH), and optional **DS3231** on the I²C bus if GPIO allows • Ensure proper placement, grounding strategy, and compact layout suitable for a **handheld enclosure (~100×60 mm)** Deliverables will include: • Schematic and PCB layout (using **KiCad** or **Altium Designer**) • Gerber, drill, pick-and-place files ready for **JLCPCB** or PCBWay • Clean BOM with manufacturer part numbers • STEP file for enclosure design and clear silkscreen labeling I have experience designing **ESP32-based IoT boards, GSM devices, and compact multi-module PCBs**, and I can share example layouts if needed. Best regards, Ahmed

@isurutech

Dear Sir, I would like to present myself as a prospective candidate for your project. I have sound knowledge and experience in electronics and programming, including schematic design and PCB design. I have carefully read your project description, and I believe I would be a strong candidate since my skills closely align with your project requirements. I also have several years of hands-on experience working with the LILYGO T-Call module, including PCB design and firmware development. If you visit my portfolio under the title “PCB Design with WiFi and GSM”, you will find a PCB I designed based on the LILYGO T-Call module. This project demonstrates my practical experience with the same hardware platform mentioned in your requirements. With my experience working on this module and developing complete hardware and firmware solutions, I am confident that I can successfully complete your project. Please feel free to message me if you have any questions. I would also appreciate it if you could take a look at my profile and portfolio. Expecting a favorable reply. Sincerely, Isuru Athukorala

@leonidye

Hello, As an experienced RF and electronics designer with a solid background in antenna design, I am confident that I can tackle the complexities of your handheld device PCB design project with ease. My expertise lies in producing practical, manufacturable designs with predictable performance, which aligns perfectly with your requirements for impedance control, grounding, isolation and EMI reduction. The added bonus is my familiarity with the specific components you've listed like the LILYGO TTGO T-Call V1.3, SSD1306 128x64 OLED Display and RDM6300 RFID Reader. In past projects, I have focused on creating compact and embedded antennas along with multilayer PCBs that are optimized for performance without compromising on cost. My knowledge of power supply and filtering design ensures your LiPo battery connector requirement, if feasible, will be handled meticulously. Moreover, tools like Altium - which I'm proficient in - will be put to their best use for your schematic & PCB layout needs to generate production-ready hardware. Best regards, Leonid Y.

@sakshis576

With my solid background in project-based skillsets coupled with an astute knowledge in PCB design, I am poised to be your preferred-choice freelancer. Keying into your core demands, I will aim to maintain clear segregation between the noisy traces such as power and GSM from sensitive traces like RDM6300 RFID reader to avoid signal degradation. Additionally, proper grounding and trace isolation around the RFID antenna connector and GSM module will be extensively accounted for. My deep familiarity with Arduino, Circuit Design, Electronics, Embedded Systems and Microcontroller design will definitely come in handy. I have ample experience integrating various components on a PCB ensuring compact form factor for handheld devices just like the one you need. My proficiency extends to firmware/software procedures when necessary making provision for adaptability as future needs may dictate.

@ssumitkumar7800

With extensive knowledge in circuit design and PCB layout, I will be the perfect fit for your compact handheld device project. My skills go beyond just electronics; I have experience in using software like PCB, PLC, Ki Cad, Gerber file, BOM, Altium, Eagle, and Or CAD. I guarantee you meticulous attention to detail to ensure every component is perfectly arranged and no signal degradation occurs within the system. My familiarity with the LILYGO TTGO T-Call V1.3 (ESP32 + SIM800L GSM) core module, OLED displays (SSD1306), buttons (membrane switch connectors), and USB Type-C ports will considerably aide in streamlining this project. Given that step files are necessary for 3D enclosure design, my expertise in 3D rendering using software such as Rhino, Rhino Grasshopper, Abaqus and more will definitely come in handy. Best Regards Sumit

@ZainAbbas51862

Greetings Dear Hiring Manager I have read the description of your project and I understand everything. I am an expert in custom PCB design and hardware integration with extensive experience in creating compact carrier boards for ESP32 and GSM-based modules like the T-Call V1.3. I specialize in developing high-integrity layouts in KiCad and Altium that feature optimized signal isolation for RFID (RDM6300) and impedance-matched traces, ensuring your handheld device remains noise-free while providing professional-grade manufacturing files (Gerber, BOM, STEP) tailored for JLCPCB or PCBWay assembly. I am waiting on chat to discuss more and I am willing to start it now. Best Regards, Zain Abbas