PCB Design in EasyEDA: ESP32-PICO-D4 base board with 2 sensor inputs, SD card, and expansion headers

@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.

@engrusmanfaiz

I'm interested in this job and will do it easily completed PCB designs update the schematic and delivery on time. Hire me once and see the expected results of PCB design. Regards Engr Muhammad Usman

@BOSIREX

I'm a qualified mechatronics engineer with extensive experience in both mechanical, electrical, and electronics engineering. My broad knowledge base and astute understanding of control systems and automation perfectly complement this project's needs. Over the years, I have honed my skills in circuit design and PCB layout to deliver optimal outcomes, just as you seek for your ESP32-PICO-D4 project. Regarding your project’s specific requirements, I have not only worked extensively with the ESP32-PICO-D4 but have actual examples that illustrate my capabilities with it. In terms of layer count, I would recommend a 4-layer PCB design to optimize signal integrity, minimize noise interference, and accommodate the future expansion you intend for the device adequately. Moreover, I have significant experience working with DC-DC converters in various real-world applications which will allow me to recommend the perfect model after analyzing all the specifications thoroughly.

@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!

@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

@ThynkLoop

Hi, I can design a complete ESP32-PICO-D4 base board in EasyEDA with sensor inputs, microSD storage, and expansion headers, ensuring a reliable and production-ready layout. I have experience in ESP32-based PCB design and power electronics. I will create a clean schematic and optimized PCB layout with proper power protection (over-voltage and reverse polarity), stable DC-DC conversion, and well-routed GPIOs for expansion. The design will be compact, manufacturable, and easy to integrate. Scope: *Schematic design (ESP32-PICO-D4 + peripherals) *Power design (5–14V input with protection + DC-DC converter) *Sensor interface (2x JST pulse inputs) *microSD (SPI interface) integration *FT232RL programming header *Status LEDs and reset button *Expansion headers with free GPIO routing *PCB layout in EasyEDA (2-layer optimized) Deliverables: *Schematic and PCB layout (EasyEDA files) *Gerber files *BOM with MPN *Pick & Place file *3D STEP file *Pinout documentation Approach: *Design stable power stage with efficient DC-DC (e.g., MP1584 or similar) *Ensure proper ESP32 layout practices (grounding, decoupling, antenna clearance) *Optimize routing for SPI and signal integrity *Keep design compact and scalable for future expansion *Validate for manufacturability I will deliver a clean, reliable, and production-ready ESP32 base board design.

@Mohitjalani

Hello, I have experience in ESP32 and embedded PCB design, including sensor interfacing, power supply circuits, and communication protocols like UART and SPI. I have worked on multiple projects using ESP32, STM32, and Arduino. For your project, I will design the schematic and PCB in Kicad with proper routing for microSD (SPI), FT232RL, GPIO expansion, and sensor connectors. Layer Count: I recommend a 2 -layer PCB for better grounding, EMI reduction, and stable performance of ESP32. DC-DC Converter: I suggest using MP1584 or LM2596 for efficient 5V–14V input with stable output. Timeline: 5 days I will provide all required deliverables, including schematic, Gerber files, BOM with MPN, pick and place, 3D file, and pinout details. Looking forward to working with you.

@koecchh

Dear Client, I have reviewed your specifications (Russian & English) and can deliver a reliable ESP32-PICO-D4 base board. I have experience with ESP32 designs involving power regulation, sensor interfacing, SD cards, and compact layouts (examples available). Layer Recommendation: 4-layer PCB for improved EMI, stable power, and clean routing for SPI and GPIO expansion. Power Design: 5V–14V input with reverse polarity (P-MOSFET) and over-voltage protection (TVS). DC-DC Converter: MP1584EN (efficient, compact, wide input range). Features include JST sensor connectors, 3 status LEDs, reset button, FT232RL header, microSD (SPI), and mezzanine connectors with routed GPIOs. Deliverables: Schematic, Gerber, BOM (MPN), Pick & Place, STEP, pinout. Timeline: 7–10 days. Ready to start immediately. Best regards, Clinton Kipkoech

@sujeety52

Hello, I have carefully reviewed your technical specifications (Russian & English) and I can design the complete PCB based on ESP32-PICO-D4 as per your requirements. ✅ **My Experience:** I have worked on ESP32-based designs including compact modules and sensor interfacing circuits. I have experience with power protection circuits, SPI peripherals (microSD), and UART programming interfaces like FT232RL. ✅ **Layer Count Suggestion:** I recommend a **4-layer PCB** for this project. Reason: * Better power integrity and grounding * Reduced noise for ESP32 RF performance * Compact and cleaner routing for GPIO and SPI lines ✅ **DC-DC Converter Proposal:** I suggest using **MP1584EN** (buck converter) because: * Wide input range (up to 28V) * High efficiency * Compact and cost-effective (Alternative: LM2596 if size is not critical) ✅ **What I Will Deliver:** * Schematic (EasyEDA) * PCB Layout (Gerber files) * BOM with MPN * Pick & Place file * 3D STEP file * Detailed pinout & documentation I will also ensure proper protection (reverse polarity + over-voltage), clean layout for microSD (SPI), and stable sensor interfacing. I am ready to start immediately. Let’s discuss your full specification in detail. Best regards, [Sujeet Kumar]

@patrickA123456

Привет. Прочитал требования и чувствовал это в большинстве как раз подзодит ко мне. Почему так подумал в первым взгляде??? - Раньше я занимался проектами с ESP32-PICO-D4, не только работал, а освоил им. если хочешь могу вам показать. - я рукомендую создать PCB c 4-слойными, причина: из моего опыта, еще главная причниа - расскажу когда мы с вами бесседуем про проект. - рукомендуемый модель конверции DC-DC: изпользовать микросхему LM259xx - план работы: общий - 6 дней ( 1 - выбор подходяющих элементов и выбор датащитов, 2 - создаие принц.схемы, 2 - создание PCB design, 1 - проверка). Я всегда стараюсь выполнять проекты так, чтобы они были удобны для клиента и соответствовали высоким стандартам качества. Буду рад вашему ответу и возможности поработать вместе. С уважение. Patrick A.