ESP32-S3 Based Data Acquisition Board Design

@macroenergy

With over a decade of experience in Electrical Engineering, I bring a wealth of knowledge to this project and am confident that I am the ideal candidate for the job. My previous work showcases my expertise in digital motor control, analog design, electronic design, power electronics as well as PCB design— all skills highly relevant to the scope of your project. Having worked extensively with ESP32-based multi-board systems and ensuring high/low voltage isolation, incorporating these features into your design will be second nature to me. Moreover, I am fully proficient in KiCad and this project's requirement to use the software natively fits perfectly with my methodology. In fact, I make it a point to provide a complete handover of raw project files for maximum transparency and ease of use moving forward. Additionally, my familiarity with adding standard hardware protections will ensure that the final design is robust and built for longevity. Lastly, as an academic myself, I understand that this research-backed DAQ system needs to be future-proof and seamlessly cater to different research teams across various domains. My exposure to diverse projects like renewable energy systems and embedded systems enables me to think holistically about expanded functionalities and incorporate compatibility provisions for easier upgrades later on.

@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.

@mairajali11

As a seasoned electrical engineer with over 8 years of experience specializing in PCB design using KiCAD, I believe my skillset aligns perfectly with what you're looking for. I possess an in-depth understanding of mixed-signal routing and have successfully designed robust multi-board systems centered around the ESP32 platform on multiple occasions. My familiarity with standard hardware protections, such as TVS diodes and optocouplers, combined with my proficiency in CAD/housing design using Fusion360, means I can ensure your boards are not just electrically sound but also physically optimized for the most efficient utilization of space. I always prioritize scalability in my designs, which resonates perfectly with your project's future-proof and expansion requirements. Furthermore, I am an expert in generating comprehensive handover packages including source files (raw KiCAD project directories), BOMs, gerbers, NC Drill files, and CPL/Pick-and-Place files ready for standard rapid prototyping. With me onboard, you can rest assured that your project will not just be completed but will be completed efficiently and effectively for long-term use. Should you require any form of assistance after handover or in any other capacity mentioned in my profile like MATLAB/SIMULINK & Python programming or embedded system design (Arduino etc), I'll be more than happy to lend a hand post completion of the PCB design task.

@markoa7

As an experienced hardware engineer specializing in PCB design and development, I am confident that I am the ideal fit for your project. Over the years, I have amassed a proven track record of creating reliable, high-performance circuit boards tailored to specific application needs. My expertise in power supply circuits (including DC-DC, AC-DC conversion) and multilayer design for embedded systems resonates well with your requirements for the ESP32-S3 based Data Acquisition Board. Not only am I proficient in using the exact ESP32-S3-WROOM-1-N16R8 module specified, but I am also well-versed in adapting mixed-signal routing protocols for optimal performance. My experience in adding standard hardware protections such as TVS diodes and optocouplers demonstrates my commitment to delivering robust and electrically quiet systems - a must-have for your academic research project. I approach every project with utmost dedication and aim at delivering innovative solutions without compromising deadlines or quality. By choosing me, you'll be electing to work with a professional capable of turning ideas into reality through meticulous design and development. Let's connect to further discuss how our combined effort can create a state-of-the-art data acquisition system perfectly aligned with your project vision.

@tshibsamuel477

Hi there, SILICON I carefully read your full project description and I can design both the Main Controller Board and the Front Panel HMI board in KiCad using the exact ESP32-S3-WROOM-1-N16R8 module, ensuring a modular, electrically robust, and university-archive-ready hardware platform. I’m Samuel Tshibangu, a mechatronics engineer with strong experience in ESP32-based systems, mixed-signal PCB design, industrial I/O protection, and multi-board architectures. I will implement a clean power stage (12–24V DC / 24V AC input), protected analog inputs (0–5V / 4–20mA), DS18B20 1-Wire bus support for long cable runs, relay/driver outputs, RS-485 interface, microSD storage, SPI Ethernet (W5500), and USB-routed expansion for an M.2 cellular module. For the Front Panel HMI board, I’ll design a compact ribbon-connected interface with 12 buttons and 10 LEDs, using GPIO expanders (e.g., MCP23017) to preserve ESP32 resources and keep the system scalable for future research use. You will receive: • Complete KiCad schematic + PCB layout (latest stable version) • Gerbers, NC Drill, BOM, and CPL files ready for JLCPCB fabrication • Clean mixed-signal routing with protection (TVS, filtering, isolation where appropriate) • A modular architecture suitable for long-term academic reuse • Full source KiCad project handover I can also share examples of similar ESP32 mixed-signal boards designed in KiCad. 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!

@Ekarthaan

Hi ATRfreelance, This is quite similar to a project I delivered last week, so I can jump straight into execution. Ready to start immediately. SILICON 1) Power: What is the max continuous/peak current budget (logic + 8 relays + sensors + modem), and must the input accept both 12–24 VDC and 24 VAC with surge/EMC class defined (e.g., IEC 61000-4-5)? 2) Analog: How many channels of 0–5 V and 4–20 mA, target resolution/accuracy and sample rate, and is galvanic isolation required from MCU ground? - Partition field I/O with digital isolation and an isolated 24→5 V DC/DC for RS‑485, relays, and 4–20 mA loops; add TVS on every external line, eFuses, reverse‑polarity + bridge for AC/DC, and jumperable 120 Ω termination/bias. - For the M.2 Key B: dedicated 3.8 V buck with >2 A pulse capacity, power gating/soft‑start, large local bulk caps, USB D+/D– ESD + common‑mode choke, SIM 1.8/3.0 V compatibility, and RF keep‑outs/ground stitching. Action Plan: - Phase 1: Finalize interfaces/pin map, power budget, ribbon spec/length, HMI addressing; test strategy. - Phase 2: Schematics (KiCad): ESP32‑S3‑WROOM‑1‑N16R8, W5500, microSD, RS‑485, 1‑Wire with strong pull‑up/ESD, ADC/AFE for 0–5 V & 4–20 mA, HMI expanders. - Phase 3: Layout: split planes, USB/Ethernet impedance, 24 VAC creepage, quiet ADC/1‑Wire routing, thermal, testpoints; DFM. - Phase 4: Reviews, ERC/DRC, BOM/CPL/Gerbers; bring‑up plan + minimal test firmware stubs Best Regards, Sid

@SPARKtechBD

Since 2003 I am working in Digital Electronic. So more than 18 years of experience in Electronics. Arduino NANO/UNO/MEGA, ESP32 and Raspberry PI to build a digital device to read sensor data and send it to the web server, motor control, control relay switches and LEDs. More than 5(five) years of experience in Arduino design and build. If you want an excellent and error-free project delivery, then send a message to me, please. Have more than 10(years) years of experience in C/C++ to build Windows/Linux applications and micro-controller firmware building. If you want a good job delivery, then send a message to me, please. Since 1995 I have been working on Analog and Digital Electronics to build any kind of device. I have build lots of devices. So more than 20 years of experience on Electronics. Including power supply design. Any kinds of schematic and PCB design. Expert PCB design in EasyEDA Pro IDE

@Alif2710

With over 8 years of experience working in military and avionics, I have a solid background in electronic design and embedded systems engineering - core skills that perfectly align with your needs for this ESP32-S3 Based Data Acquisition Board project. My competence with KiCad as specified in your requirement will also ensure that the PCBs I design are consistent with your project goals which will save time and ease handover of your project. I am well-versed in STM32, Arduino, FPGA designs and analog electronics, all of which will be highly useful considering the functionality you want your system to achieve. One thing I have mastered over the years is ensuring robustness and quietness in the systems I build; important features you mentioned for smooth operation in this academic research board. Feel free to chat and discuss with me, I will be happy to help you, Best Regards, Alif

@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

@Zack111Arya97

Hello, I am Zakaria, a Master’s graduate in Automatics and Systems I specialize in high-reliability industrial hardware and MCU-based control systems. Why I am the best fit: ✅ ESP32-S3 Specialist: Expert in routing the N16R8 module with high-speed memory and RF stability. ✅ Industrial Protection: I will implement opto-isolation, TVS diodes, and filtered ADCs to make this board "student-proof" and lab-ready. ✅ KiCad Native: I deliver clean, modular projects (Main + HMI boards) with optimized W5500/M.2 signal integrity. Deliverables: ✅ Full KiCad Source: Schematic, 4-layer PCB, and 3D renders. ✅ Fab-Ready Files: JLCPCB-compatible Gerbers, BOM, and CPL. I have attached screenshots of my previous mixed-signal KiCad designs for your review. I am ready to begin the schematic immediately.

@jakubf41

SILICON Hello, I specialize in ESP32-based multi-board hardware design and can deliver robust, production-ready PCBs for your Main Controller and Front Panel UI boards in KiCad. I will provide: • Main Controller Board: ESP32-S3-WROOM-1-N16R8, wide-input power stage (12–24 V DC / 24 V AC → 5 V/3.3 V), 8x relay outputs, filtered ADCs, 1-Wire bus for DS18B20 probes. • Front Panel UI Board: 12 tactile buttons + 10 LEDs connected via ribbon cable, with optional I2C expanders/shift registers to save GPIO. • Future-Proof Features: SPI Ethernet (W5500), M.2/mini PCIe for cellular, microSD logging, RS-485, I2C/SPI expansion headers. • Deliverables: KiCad schematics/layout optimized for signal integrity, thermal dissipation, and isolation; Gerbers, NC Drill, BOM, CPL/Pick-and-Place files; complete KiCad project directory. I have strong experience in mixed-signal routing, hardware protections (TVS diodes, optocouplers), and modular multi-board systems suitable for lab and field use. All boards will be ready for rapid prototyping and student-friendly deployment. I can provide screenshots/3D renders of previous ESP32/KiCad mixed-signal designs upon request. I focus on robust, manufacturable, and electrically quiet designs that meet academic and research standards. Looking forward to discussing your project and delivering high-quality boards. Best regards

@sakshis576

SILICON As an experienced PCB designer, my skills in electrical engineering, electronics, and embedded systems make me the ideal candidate for your ESP32-based data acquisition and control project. Drawing from my knowledge in mixed-signal routing and hardware protections, I can ensure that your Main Controller Board design meets all necessary requirements for efficient functionality and reliability. Additionally, my familiarity with KiCad will ensure a smooth handover of the raw KiCad project directory, setting you up for a hassle-free manufacturing process matching your specified deliverables. Moreover, the 'Future-Proof' requirements of your project resonate with my own philosophy as an engineer. I have always believed in creating designs that are adaptable to changing needs which mirror current technology trends. For example, I have experience working with and integrating SPI-based Ethernet controllers (like the W5500) and M. 2 Key B slots into designs geared towards improved network connectivity options which aligns perfectly with your vision of deploying these boards at remote sites.

@muhannadbukhamse

Hi there, I have experience designing ESP32-based mixed-signal PCBs and multi-board systems in KiCad, including power, relays, communication interfaces, and HMI boards. Scope of Work: ✅ Main ESP32-S3 schematic and PCB layout in KiCad ✅ Front Panel UI board with buttons, LEDs, ribbon interface ✅ Power supply, relay drivers, ADC protection, RS-485, Ethernet, M.2, MicroSD ✅ Mixed-signal layout, isolation, and protection circuits ✅ Gerbers, BOM, CPL, and full KiCad source files I can perform the project and deliver production-ready design files. Best Regards,

@soniaer987

SILICON Two-board KiCad system with a mixed-signal main controller and a front panel HMI — this is exactly the kind of professional DAQ hardware I design. For the Main Controller Board I'll implement: • ESP32-S3-WROOM-1-N16R8 as specified • Wide-input power stage (12–24V DC / 24V AC) → clean 5V and 3.3V via isolated switcher + LDO for the analog domain • 8x relay/driver outputs with flyback protection and optocoupler isolation to protect the MCU from inductive kick • 1-Wire bus with strong pull-up and ESD protection for long DS18B20 runs • Analog inputs with TVS + RC filtering for 0–5V and 4–20mA industrial signals • W5500 SPI Ethernet with RJ45 magjack • M.2 Key B slot on USB D+/D− with nano-SIM holder • MicroSD, MAX485 RS-485 transceiver with terminal block, Qwiic/STEMMA QT headers For the Front Panel UI Board: • MCP23017 I²C expander to handle 12x buttons + 10x LEDs cleanly without burning GPIO on the S3 • IDC ribbon connector to main board, clearly defined pinout All in KiCad — full project directory, Gerbers, NC drill, BOM, and CPL ready for JLCPCB. Mixed-signal routing will keep the analog inputs, relay switching, and RF section physically separated with proper ground stitching between domains. Student-proof protections (TVS, optocouplers, polyfuses) built in from the start. Ready to start immediately. Can you confirm the target board dimensions and whether the relay outputs need onboard mechanical relays or buffered driver outputs for external contactors?

@joaquinc48

SILICON I’m an embedded hardware engineer with strong experience designing ESP32-S3 based, mixed-signal multi-board systems in KiCad for lab and industrial environments. Your DAQ + HMI architecture—with isolated analog inputs, relay control, and modular expansion (Ethernet, RS-485, cellular)—aligns closely with boards I’ve delivered requiring clean power, noise isolation, and scalable design. I can develop both the Main Controller and Front Panel boards with: • Robust 12–24V input stage (AC/DC), low-noise 5V/3.3V rails • Protected ADC (0–5V / 4–20mA), 1-Wire bus, and relay driver stages • GPIO expansion (I2C/shift registers) for buttons/LEDs via ribbon cable • Integrated W5500 Ethernet, RS-485, MicroSD, and M.2 cellular interface • Proper grounding, isolation, and EMC-conscious layout Deliverables include full KiCad project, Gerbers, BOM/CPL, and production-ready documentation.

@joeyw68

SILICON Hello, I can design the ESP32-S3-WROOM-1-N16R8 based Main Controller and Front Panel UI boards in KiCad with clean power stages, mixed‑signal routing, relay drivers, Ethernet, RS‑485, and M.2 cellular interfaces. I’ll deliver optimized schematics, PCB layouts, and fabrication-ready files, ensuring robustness and low noise for your university research environment. Screenshots and 3D board renders can be shared upon request. Thanks,

@imranfaiz948

Hello, My name is Engi Muhammad Imran, and I have 12+ years of experience in embedded hardware and multi-board PCB systems, including ESP32-based designs. Your project is well-defined, and I can handle both the Main Controller Board and Front Panel HMI, ensuring clean power design, proper isolation, and reliable mixed-signal performance. I have strong experience with: • ESP32-S3 systems, Ethernet (W5500), RS-485, and sensor interfaces • Industrial power stages (12–24V DC/AC to stable 5V/3.3V) • Relay/driver circuits with protection (TVS, optocouplers) • KiCad-based full design workflow (schematic → PCB → production files) I will design a modular, low-noise, and future-proof layout with proper grounding, filtering, and expansion interfaces as required. Deliverables: Complete KiCad project, Gerbers, BOM, Pick & Place, and 3D PCB files ready for JLCPCB. Timeline: 2–3 weeks Cost: Can be finalized after brief discussion I can also share previous KiCad mixed-signal PCB samples upon request. Looking forward to collaborating with your research team. Best regards, Engi Muhammad Imran

@uzairelectronics

Hello, I’ve reviewed your requirements and can support this project in native KiCad from schematic to production-ready files. I understand you need a Main Controller Board plus a separate Front Panel/HMI board built around the exact ESP32-S3-WROOM-1-N16R8. I can handle the full scope including wide-input power design, relay/output channels, protected analog inputs, 1-Wire, Ethernet, RS-485, microSD, expansion headers, and ribbon-connected UI board design. My focus will be on clean mixed-signal routing, robust protection, modularity, and manufacturability. Deliverables will include schematics, PCB layout, Gerbers, drill files, BOM, CPL, and full KiCad source files. I have experience with ESP32 hardware, embedded systems, and production PCB design, including boards that require reliable operation in real-world environments. I can also share relevant mixed-signal board examples / renders during discussion. Best regards, Uzair | @engr_uzairpcb