2-Layer ESP32 Smart Switchboard PCB

@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.

@mairajali11

As a seasoned electrical/electronics engineer and experienced PCB designer, I believe I am the ideal candidate for your 2-Layer ESP32 Smart Switchboard project. With a successful track record of over 8 years in PCB design using KiCad, Altium, Eagle (and EasyEDA as well), my extensive skillset aligns perfectly with your project requirements. Moreover, Ranking among the top 1% of skilled professionals on the platform, my focus has always been on delivering high-quality work efficiently and within deadlines, a much-needed trait for your project. I have designed and implemented numerous home automation projects including circuits with triacs, relays and capacitive touch inputs like what you have described for smooth Dimming and Color-temperature adjustment on 230 VAC LED fixtures. My experience with Home Assistant setup and I2C protocols further enhances my understanding of the kind of solution you are seeking. Importantly, this is not simply another job for me! As someone who genuinely enjoys routing complex PCB designs from scratch, I would be excited to take up this challenge. Happy to integrate your suggestions throughout the process, I assure you satisfied turnkey delivery complying with all specifications such as power domain notes for your firmware team and maintaining necessary clearances to avoid heat dissipation issues under specified loads

@tshibsamuel477

Hi there, I carefully reviewed your smart switchboard requirements, including the ESP32-based motherboard, four SPDT relay channels, dual 230 VAC triac dimmers, capacitive-touch daughter board, and the strict 72 × 68 mm / 18 mm mechanical envelope. I am a mechatronics engineer with almost half a decade of experience in embedded electronics, power supplies, multilayer and 2-layer PCB design, hardware prototyping, and interfaces such as UART, SPI, I2C, USB, and similar embedded systems. I design and prototype electronic boards using Altium Designer and can deliver the native project files along with Gerbers/ODB-II, BOM, PDFs, pin mapping, and manufacturing documentation. This project requires careful separation of 230 VAC and low-voltage domains, thermal consideration around the relays and triacs, reliable ESP32 integration, and close mechanical coordination with the touch board and glass interface. My existing hardware and PCB experience allows me to approach these areas efficiently without needing to learn the core technologies first. Please send me a message so we can discuss the project and start. Best regards, Samuel tshibangu

@Adeel2k14

Hi, I’m an Electronics/PCB Design Engineer with 8+ years of experience designing compact 2-layer ESP32, relay, triac, and mixed-voltage PCBs. I can develop the complete KiCad/Altium design within your 72 × 68 mm enclosure, including the touch daughter board, relay outputs, dual triac dimming, power supplies, isolation, clearances, and thermal management. I’ll provide production-ready schematics, PCB, Gerbers/ODB++, BOM with MPNs, supplier options, PDFs, pin mapping, and test points. I’ll also ensure the layout is suitable for JLCPCB assembly and support prototype testing/refinement. I can share relevant ESP32 and mains PCB samples from my portfolio.

@hayteekeys

HI, KINDLY READ THROUGH MY PROPOSAL I will design a complete, production-ready 2-layer PCB stack (motherboard + capacitive-touch daughter board) around an ESP32 that fits a standard Indian switch box and works reliably with Home Assistant. MY APPROACH
 ✅ Compact 2-layer layout within 72 × 68 mm and height limits 
✅ Four 5 A SPDT relays + dual triac dimmer channels for 230 VAC LEDs 
✅ Capacitive multi-touch pad (AT42QT or similar) with glass-front compatibility 
✅ Proper 230 V / 3.3 V isolation, clearances and thermal management
 ✅ Full manufacturing package + clear pin-mapping for ESP-IDF firmware DELIVERABLES • Schematics, 2-layer PCB layouts and Gerber/ODB++ files • Clean BOM with manufacturer part numbers and in-stock sources • Pin-mapping, power-domain notes and test-port footprints • KiCad or Altium source files + PDF review package QUESTIONS 1 Preferred CAD package (KiCad or Altium)? 2 Exact relay and triac part preferences or current ratings to lock in? 3 Any existing mechanical drawing of the switch box or glass front plate? Ready to start as soon as the mechanical constraints and preferred CAD tool are confirmed.

@hamzazayyad

Hello, On a 2-layer board the real fight is 230 VAC in a 72 × 68 mm envelope: mains creepage and clearance, solid isolation between the mains side and the ESP32/3.3 V domain, and heat management for four relay coils and dual triacs sharing the board with a noise-sensitive capacitive front end. The dimmer channels also need a zero-cross reference and optocoupled gate drive per channel so 5 A LED loads dim cleanly without corrupting the AT42QT touch readings through the 2 mm glass. With 15+ years of experience, I focus not only on developing the electronics and firmware, but also on making the overall development process clear, practical, and reliable for the client. I have built ESP32 control boards with relay and mains-power switching under tight mechanical envelopes, and touch-based HMIs, so this stack is well inside my core layout discipline. I'll deliver Altium Designer files, Gerbers/ODB-II, a BOM with in-stock suppliers, pin-mapping and power-domain notes, plus footprints for the mains flash-over test, JTAG/UART, and future shunt. Best regards, Hamza

@Mahmoud00Ibrahim

Hello, Yes, this is exactly the kind of PCB project I work on. I can take your existing concept and turn it into a production-ready 2-layer KiCad/Altium design, including the motherboard, capacitive-touch daughter board, schematics, layout, Gerbers, BOM, and manufacturing files. I’ll pay particular attention to the 230 VAC / low-voltage isolation, creepage and clearance, relay/triac thermal management, grounding, and keeping everything within the 72 × 68 mm mechanical envelope. For the touch interface, I can handle the AT42QT (or suitable alternative), glass-front sensing, FFC/board-to-board connection, and reliable routing for the four touch zones. I’ll also provide the ESP32 pin mapping, power-domain documentation, JTAG/UART access, test points, and future energy-monitoring footprint so the firmware team can work directly from the hardware design. I can use KiCad for the complete project and provide PDFs for review. I can deliver the first schematic/PCB draft within 3–4 days after receiving the existing sketches and mechanical details.

@shadabkhan92

As an expert in Circuit Design, Electrical Engineering, and PCB Layout, I’m MOHD SADAB, a perfect fit for your 2-Layer ESP32 Smart Switchboard project. My vast experience designing robust PCBs compatible with home automation systems will be invaluable to your project. What distinguishes my work is the ability to execute even complex AI implementations inside existing workflows. In line with your specifications, I pride myself on producing neat BOMs with easy-to-find supplier details for all components on the PCB. You can be assured of accurate pin mapping and explicit power domain notes for a smooth integration process with the ESP-IDF. Additionally, I am skilled at addressing unique design considerations such as isolation for mains-side safety, maintaining adequate clearances for track safety around triacs and relay coils and managing heat dissipation effectively.

@shivkantverma

Hi, Greetings! I am interested in working on your project. Could you please share the design details and technical requirements so we can discuss the project scope and key parameters in detail? I look forward to working with you. Thank you! Shivkant Verma

@bojans9

Hello, I can design the ESP32-based 2-layer smart switchboard, including the motherboard, capacitive-touch daughter board, schematics, PCB layout, BOM, Gerbers/ODB++, pin mapping, and fabrication documentation. I have 10+ years of software and embedded-systems development experience, including PCB and device development. I can carefully separate the 230 VAC and 3.3 V domains, handle relay/triac placement and thermal considerations, provide appropriate clearances and test points, and keep the design within your 72 × 68 mm mechanical envelope. I can prepare the ESP32 pin map and power-domain documentation so the firmware team can integrate it directly with ESP-IDF. I would first produce the schematic and component/pin plan for review, then proceed with PCB placement and routing. Budget: ₹12,500 fixed Timeline: 7 days for the design package Please confirm whether you prefer KiCad or Altium and provide the switch-box/mechanical references if available. Best regards, Bojan

@chetanc20

Hi, I’m an experienced Hardware/PCB Design Engineer with strong experience in ESP32, IoT, relay/triac control, capacitive touch, and 2-layer production PCB design. I can deliver complete schematics, PCB layout, BOM, Gerbers/ODB++, test points, and firmware pin mapping in Altium/KiCad. I’m comfortable with 230VAC isolation, creepage/clearance, and thermal considerations. I can start immediately and share the first draft quickly.

@caodx

Hello, I am an embedded hardware and PCB design engineer with experience developing ESP32-based IoT products, smart controllers, AC power electronics, sensor interfaces, and Home Assistant connected devices. Your project is particularly interesting because it combines several areas I regularly work with: ESP32 hardware, relay control, capacitive touch interfaces, low-voltage embedded systems, and mixed-voltage PCB design involving both 230 VAC and 3.3 V domains. I can develop the complete schematic, 2-layer PCB layout, BOM, manufacturing files, pin mapping documentation, and production-ready outputs in either KiCad or Altium Designer. Special attention will be given to creepage/clearance requirements, isolation strategy, EMI reduction, thermal management around the triacs and relays, programming/debug interfaces, and reliable capacitive touch operation through the glass front panel. I can provide an initial architecture review and first design draft within a few days after receiving the detailed requirements and preferred dimming topology. I would be happy to discuss the project further.

@hamzaePCB

Before starting the layout, I would first separate the 230 VAC power domain from the 3.3 V control/touch domain and lock the mechanical constraints of both boards. With four relays and two triac dimmers inside a 72 × 68 mm enclosure, placement, mains clearances and thermal paths need to be resolved before routing. For the motherboard, I would review the relay/triac switching stages, isolation components, ESP32 power supply, mains protection and the future energy-monitoring interface before defining the PCB rules. For the touch board, I would design around the 2 mm glass interface and keep the touch electrodes and their routing away from noisy mains/dimmer circuitry, with the daughter board connected through FFC or board-to-board as mechanically appropriate. I would use KiCad and provide the schematic, 2-layer PCB sources, Gerbers/drill files, BOM with MPNs, assembly documentation, ESP32 pin mapping and programming/test points. Before starting, I would like to confirm: Do you already have the exact ESP32, relay, triac and touch-controller parts selected? What is the required maximum load/current for each dimmer channel? Is the low-voltage supply derived directly from 230 VAC on the motherboard, or will an external isolated supply/module be used? Can you provide the exact switch-box mounting dimensions and glass/touch-zone positions? Once these are fixed, I can prepare the first schematic/placement draft for review before completing the routing.

@alfatrade2

Four 5A SPDT relays and two triac dimmers on a single double-layer board in a standard Indian enclosure — the tightest spot here is the creepage between 230V and the low-voltage ESP32 section, which will have to be maintained with slots, not just trace spacing. A full certified kit for $130 won't be possible, only the schematic, layout, and Gerber files. I've done firmware for microcontrollers with sensors and actuator control in C/C++, including RP2040. Is the dimming phase-cut, or do you need zero-cross with the ESP32?

@aizaz229

I work regularly with mains-powered IoT hardware, ESP32 modules, triac dimming, and capacitive-touch interfaces in Altium Designer, making this smart switchboard layout a direct match. Fitting four 5A relays, dual 230 VAC triac dimmers, zero-cross detection, an AC-DC stage, and an ESP32 into a 72 mm × 68 mm standard modular box demands strict mains isolation, thermal dissipation, and noise separation. I will design the 2-layer motherboard with >6.3 mm creepage/clearance, reinforced with isolation milling slots beneath optocouplers, triacs, and relay pins. The triac stage will feature snubber networks, opto-isolated gate drivers, and an opto-isolated zero-crossing detector mapped to an interrupt GPIO for flicker-free phase cutting. For the daughter board, I will tune the capacitive pads and guard traces for the touch controller (AT42QT/CAP1188) to reliably penetrate the 2 mm glass plate, linked via a low-profile FFC connector. I will include UART/flashing headers, JTAG pads, energy shunt footprints, and thermal copper pours for the triacs. You will receive native Altium files, Gerbers, drill data, a verified BOM, firmware pin-mapping notes, and 3D STEP models for mechanical validation.

@nigila4

Hi, I will deliver a production-ready, 2-layer PCB stack tailored for your standard Indian switch box within your strict 72x68mm envelope. Key Deliverables: 1. Schematics & Layout: Complete KiCad/Altium project files + production-ready Gerbers/ODB++ and PDF sheets. 2. Component Optimization: Compact ESP32-WROOM-32E module, AT42QT series touch controller via FFC connector, low-profile Hongfa/Omron 5A relays, and isolated BTA08 triacs. 3. Thermal & Isolation Compliance: 6.3mm creepage/clearance with routed isolation slots between 230VAC and 3.3V domains. Thicken, unmasked traces with solder columns for 5A loads. 4. Production-Ready BOM: Clean spreadsheet featuring active MPNs from JLCPCB/Mouser/DigiKey. 5. Firmware Readiness: Accurate pin-mapping documentation, unpopulated shunt footings, and test pads for UART/JTAG flashing. Ready to start immediately. Let's build a safe, flawless design. Best regards, [Nigil Anderson]

@ostronik

Hi, Greetings from OSTronik India! We are a technology-driven company specializing in Power Electronics and Embedded System Design integrated with Artificial Intelligence (AI) and Mobile Application Development, delivering reliable, industrial-grade electronic and software solutions—from concept to mass production, all under one roof. Our in-house capabilities include R&D, Firmware Development, Hardware Design, Mobile Application(Android & iOS), Prototyping, and Scalable Mass Production, with a strong focus on quality, performance, and cost efficiency. Core Expertise: • Microcontrollers: PIC, STM32, ESP Family, AVR. • Microprocessors: Raspberry Pi • Development Tools: MPLAB X IDE, STM32CubeIDE, Arduino IDE, Atmel Studio, VS Code • Hardware Design: Industrial-grade multilayer PCBs using Altium Designer with optimized power design, isolation handling, and EMI/EMC compliance • Communication Protocols: UART, SPI, I²C, CAN, Modbus, MQTT, LAN, S-Bus, RS-485 Mobile Application Capabilities: • Custom Android & iOS mobile applications for device control, monitoring, and data visualization • Real-time dashboards, cloud connectivity, and secure user authentication • Seamless integration between IoT platforms and mobile apps We have successfully transformed multiple concepts into market-ready electronic and mobile-enabled solutions. We would be glad to share a brief reference video. Let’s schedule a meeting to discuss your requirements in detail. Best Regards, Team OSTronik India

@JagdishCK

Hello, Your project has mix of high & low voltage. I understand you want to automate home lighting with relays & provide diming function through triac. It may need suitable safety based creepage & clearances. I can handle your project as I have past experience of high & low voltage designs (SSRs). The main challenge here will be layout. I will start with suitable placement ensuring proper clearance & creepage distance between high & low voltage. Once placement looks good, we will start routing. I will pay careful attention to route as per EMI-EMC guidelines. I specialize in precision analog, power supplies, low power, EMI-EMC. Please see my profile for work samples. I will provide clean schematic, layout, BOM, pin mapping & all design files. Will use Altium. Few queries, 1. Is 18mm height very essential or we can increase over there. Please message me for more discussions over this. Regards, Jagdish Karamchandani

@HeyAbhinav

CAD Tool: KiCad 8.0 First Draft Delivery: 3 to 4 Days (Full Handover in 6 Days) ​Testing high-voltage AC boards with capacitive front glass requires exact isolation geometry and thermal planning—making this a very enjoyable board to route. ​I will deliver the initial KiCad 8.0 schematic and layout draft within 3 to 4 days for your initial review. The complete manufacturing package (JLCPCB-ready Gerbers, CPL pick-and-place, LCSC BOM, and 3D STEP models) will be ready within 6 days. ​My layout will guarantee all safety isolation slots, creepage distances, and trace current capacities so your bench smoke test and firmware validation go smoothly on the first spin.