Industrial IoT PCB Design: Schematic Review, ESP32 Update, Engineering Optimization & Full EasyEDA Layout

@Mahihassi

With my extensive background in electrical engineering and a master's degree in embedded systems, I am well-versed in every aspect of your Industrial IoT PCB Design project. My journey of designing from concept to ready-to-market products perfectly aligns with your needs. Having worked with core domains like microcontrollers (including ESP32), firmware, and PCB design using EasyEDA, I assure you a comprehensive and sustainable solution. Let's dive into the specifics: Updating the ESP32 model/module - I will meticulously assess your existing design to optimize it according to your requirements. RFID integration under the display - I'm no stranger to such unique mechanical layouts. WiFi & RFID Coexistence/Interference - Drawing upon my experience in RF hardware design, reducing interference between these two components will be ensured through well thought out layout choices and proper isolation techniques.

@saddamgul842

Hi there I am an electronics engineer having over 6 years of experience in circuit schematic and PCB layout designing. I did read your project description and can help with this project. I have designed many similar projects which you can check as samples. Share your project details further and for any discussion please feel free to contact me. Thank you

@rashidamjad

With over five years of experience specializing in industrial/embedded PCB design and my core skill set in Circuit Design, Electrical Engineering, Electronics, Embedded Systems, and PCB Design and Layout, I am uniquely suited for your project. I have extensive background knowledge regarding power integrity and EMI reduction which will prove essential for designing a stable 12-24V industrial power system with proper protection and regulation that can withstand spikes, variation, and interference. I also bring to the table hands-on experience working with ESP32 hardware design, including updating the model/module as needed to improve your IoT device's design for power stability, EMI noise immunity, grounding, filtering, and reliability. Additionally, I have successfully integrated RFID reading capabilities under displays before and managed coexistence/interference issues between WiFi and RFID systems. In regards to the optocoupler-based auto-cutter signal detection challenges you've mentioned, I have a sound strategy in troubleshooting such issues. My aim would be to thoroughly analyze the problem and provide not just quick fixes but lasting solutions. My commitment to clean implementation and solid architecture is what you need for a compact yet reliable product intended for long-term industrial use like yours.

@PathumSudarshana

Hi, This is exactly the kind of industrial design work I handle. My approach: - ESP32 update: I’ll migrate to a more stable and available module (like ESP32-S3-WROOM-1) and optimize power, decoupling, and RF layout for reliability. - RFID under display: I’ll design a tuned PCB antenna with proper ground clearance and shielding strategy to maintain ~2.5 cm range while fitting your height constraints. - WiFi + RFID coexistence: Careful antenna placement, ground partitioning, filtering, and frequency isolation to minimize interference. - 12–24V power: Industrial-grade input stage (TVS, reverse polarity, LC filtering) + efficient buck regulation for clean, stable rails. - Optocoupler issue: I’ll redesign the input with proper filtering (RC + hysteresis / Schmitt trigger) and noise immunity to eliminate false triggering. I’ll follow your workflow (placement first, then routing) and deliver a clean, production-ready EasyEDA design with full documentation. Happy to start immediately ?

@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

@Habib821

Hi, I have hands-on experience designing industrial IoT PCBs with ESP32, noisy power environments, and mixed-signal layouts, and I can deliver a compact, reliable EasyEDA design within your timeline. Approach for ESP32 update: I’ll review your current schematic and replace/update the ESP32 module (e.g., optimized WROOM variant if needed), ensuring correct power sequencing, decoupling, RF grounding, and antenna clearance. I’ll also verify boot strapping pins and improve reliability for long-term operation. RFID integration under display: I’ll use a compact PCB antenna or matched external coil depending on your current design, ensuring proper isolation from ground planes and metal/display interference. Placement and tuning will be done to achieve your ~2.5 cm read range while respecting the 4 mm height constraint. WiFi + RFID coexistence: I’ll separate RF zones in layout, use controlled grounding, shielding where needed, and filtering on supply lines. Careful placement and frequency-domain isolation will minimize interference between ESP32 WiFi and RFID operation. 12–24V industrial power design: I’ll design a robust front-end with reverse polarity protection, TVS diode, LC filtering, and a high-efficiency buck regulator with proper decoupling and layout for noise immunity and stable output under spikes and variation.