Turnkey ESP32-S3 Travel IoT PCB with Enclosure 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.

@engrusmanfaiz

Turnkey 18x35 Your main challenge is fitting RF, dual MEMS microphones, USB-C, IR power stages, MicroSD, and thermal-sensitive sensors into an 18×35mm PCB without EMI, heat drift, or acoustic issues. I can solve this using a true 4-layer architecture with isolated RF/audio/power domains and optimized component placement on both PCB sides. I have experience with dense ESP32-S3 IoT hardware, MEMS microphone integration, USB-C devices, and production-ready multilayer layouts. The BME690 will be thermally isolated using PCB slotting and placement strategy for accurate ambient readings. Dual microphones will be positioned for proper AEC performance with optimized bottom-port acoustic via structures. IR LEDs will use dedicated MOSFET drivers directly from the 5V rail while protecting logic and RF stability. Deliverables include schematic, 4-layer PCB, Gerbers, centroid files, BOM mapped to LCSC/DigiKey, and populated STEP model. Ready to begin immediately and support the project through physical prototype validation.

@mairajali11

"Turnkey 18x35", I hope this salutation lets you know that I have genuinely read and understand your requirements. With a substantial 8 years under my belt as an electrical engineer and professional PCB designer, I have no doubt that I bring the perfect mix of experience, skill, and flexibility to bring your IoT project to life. Having successfully designed compact IoT devices previously, many with dimensions well below 25mm, I'll ensure every component is carefully placed for maximal efficiency within the desired minimalist footprint. My expertise with cutting-edge design software like Eagle, KiCAD, Altium, and EasyEDA aligns perfectly with your project's requirements. Moreover, if we work together, you can rest easy knowing that I'll be creating easily utilized design files including production-ready Gerbers and NC drill files alongside a comprehensive bill of material (BOM) mapping for seamless 'one-click' ordering via platforms such as JLCPCB or PCBWay. Being a preferred freelancer ranked at the top 1% of skilled professionals, my goal is to go above and beyond in delivering quality results promising utmost functionality in all facets of your compact travel IoT device.

@Adeel2k14

Turnkey 18x35 With 7+ years of experience in PCB and hardware design, I can deliver a complete turnkey solution for your compact ESP32-S3 IoT device. I currently work remotely as a Hardware Design Engineer in a reputed firm and have designed up to 8-layer mixed-signal, high-speed digital, analog, and power converter PCBs. I have experience with dense layouts, ESP32-based systems, sensor integration, USB-C power design, and manufacturable PCB development. I can provide complete production-ready files including schematics, Gerbers, BOM, pick-and-place, and STEP models optimized for JLCPCB/PCBWay manufacturing.

@majeed219

"Turnkey 18x35, attention to detail and a deep understanding of your project's demands is what differentiates me from the rest. I have years of hands-on experience as an Embedded Systems Engineer and Professional PCB Designer, successfully developing both microcontroller-based projects and designing complex boards for IoT devices like yours. My familiarity with Espressif ESP32 series will be a great asset for this project since I've extensively worked with ESP32, ESP8266 and recently, with the ESP32 S3, giving me unique insights". "Given that space is a critical factor in the design of your device, my expertise in developing sub-25mm dense IoT gadgets perfectly aligns with your requirements. Moreover, I can boast extensive experience with other components specified for your project including Bosch BME690 and TDK MMICT5838-00-012. Thus, indoor environmental sensing and audio monitoring wouldn't be a challenge". "In addition to my circuit design skills, I bring an added benefit of being versed in PCB manufacturing requirements and tools like Altium, KiCad which enables me to deliver comprehensive output eliminating any possible discrepancies throughout the turnkey process. My "Easy-Order" Package including native CAD files, production files, BOM and a high-fidelity .STEP file for future enclosure design ensures a seamless transition from design to actualization. Choose me for efficient, quality-driven work that meets or exceeds specifications".

@xabhix

Hi, I can help develop your turnkey ESP travel IoT PCB with accurate hardware design, PCB layout, and manufacturing-ready deliverables. I have experience with ESP-based embedded projects, compact PCB development, and prototype-ready electronic product design. ✔️ ESP32/IoT PCB design support ✔️ Compact and production-ready PCB layout ✔️ Schematic, Gerber, BOM deliverables ✔️ Prototype and hardware integration support Portfolio: https://www.freelancer.in/u/xabhix I can start immediately and deliver clean, reliable engineering results. Could you share the required sensors, connectivity modules, and target PCB size? Best regards, Abhishek

@hayat38402

Hi, how are you doing? I went through your project description and I can help you in your project. your project requirements perfectly match my expertise. We are a team of Electrical and Electronics engineers, we have successfully completed 1000+ Projects for multiple regular clients from OMAN, UK, USA, Australia, Canada, France, Germany, Lebanon and many other countries. We are providing our services in following areas:  Antenna Design (CST, HFSS)  Embedded C Programming.  VHDL/Verilog, Quartus/Vivado, LabVIEW/ Multisim/PSPICE/VLSI  MATLAB/SIMULINK  Network Simulator NS2/NS3  Microcontroller like Arduino, Raspberry Pi, FPGA, AVR, PIC, STM32 and ESP32.  IDEs like Keil MDK V5, ATmel studio and MPLab XC8.  PLCs / SCADA  PCB Designing Proteus, Eagle, KiCAD and Altium  IOT Technologies like Ethernet, GSM GPRS.  HTTP Restful APIs connection for IOT Communications. Also, we have good command over report writing, I can show you many samples of our previous reports. Kindly consider us for your project and text me so that we can further discuss specifically about your project's main goals and requirements.

@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.

@shadabkhan92

Turnkey 18x35, your cutting-edge IoT device deserves a professional who not only designs PCBs but understands their intricate link with the real world like I do. My name is Shadab, and I bring hands-on experience in designing dense IoT devices which perfectly aligns with your project requirements. Having worked extensively on projects involving Espressif speech-recognition framework and M5Stack, I'm well-versed in efficiently leveraging these technologies for optimal performance. My expertise extends beyond PCB design to fields like board manufacturing, firmware development and enclosure design which you specifically require for your complete turnkey solution. I've implemented Odoo ERP end-to-end, designed custom IoT hardware, and created predictive ML models fittingly aligned with clients' existing workflows.

@electronicsdone

Turnkey 18x35. Dear Client, This is not a normal compact ESP32 board. At 18mm × 35mm, the success of this device will come from how well PCB layout, acoustic pathing, thermal isolation, RF, IR drive, USB-C height, SD access, and enclosure constraints are solved together. I can help turn this into a true easy-order hardware package, not just a routed PCB. My approach would be: ✅ lock the 4-layer PCB architecture around ESP32-S3, external antenna, MicroSD, BME690, dual MEMS microphones, IR LEDs, USB-C, Grove port, buttons, and RGB LED ✅ handle the small but critical details: mic acoustic holes, thermal cutouts for BME690, MOSFET IR drive, RF keep-out, bottom/top-side placement, and assembly-friendly component choices ✅ provide manufacturing files, BOM with active part numbers, high-quality populated STEP model, and enclosure files for CNC, SLA, and FDM versions For this project, I would focus on making the board and enclosure behave like one product. One question before starting: Do you want the enclosure design driven primarily by the CNC aluminum version first, or should all three versions evolve together? If you message me, I can outline the cleanest milestone plan for EE + enclosure so the first build is not just compact, but testable and manufacturable. Best regards, Prat PCB Must Innovations

@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

@engrhasan01

Turnkey 18x35 Are you looking for a senior hardware engineer who can deliver a production-ready ultra-compact ESP32-S3 design with dense 4-layer routing, audio-aware layout, thermal isolation, and direct-to-manufacturing outputs for PCBWay/JLCPCB? I’m an Electrical and PCB design Engineer specializing in compact IoT hardware, ESP32 systems, RF-aware PCB layout, low-noise sensor integration, and manufacturing-ready embedded designs. I have experience designing dense multi-layer boards with MEMS microphones, ESP32-S3 modules, USB-C power integration, environmental sensors, and space-constrained layouts optimized for assembly and enclosure fit. Engineering Approach Controlled placement strategy separating RF, thermal, audio, and power domains Opposite-end MEMS mic placement for improved AEC performance Ground stitching, impedance-conscious routing, and return-path optimization Careful via usage and component stacking to maintain manufacturability in dense areas Validation-ready outputs with ERC/DRC-clean fabrication package Deliverables Native KiCad or Altium project Full schematics and PCB layout Gerbers, NC drill, centroid/PnP files BOM with active LCSC/DigiKey parts STEP model of fully assembled PCB Firmware pin-mapping reference Manufacturing-ready package for one-click ordering. Best regards, Hasan

@mohammadusman45

Hello, Muhammad here experienced Hardware developer. This job really matches with my skills and expertise. I have already worked with ESP32-S3 ,Bosch BME690 and SUB -C charging and Data. Please initiate a chat to discuss further. Looking Forward Thanks

@ahmedy607

Turnkey 18x35 Hi, I can design the complete 4-layer ESP32-S3 PCB for your compact IoT device, including RF layout, USB-C integration, MEMS microphone routing, IR MOSFET drivers, and manufacturing-ready outputs. I have experience with dense ESP32 designs and automated PCBA workflows, with focus on antenna matching, acoustic routing, thermal isolation for the BME690, and reliable power distribution inside tight mechanical constraints. Deliverables include schematic, PCB, Gerbers, pick-and-place, BOM with LCSC/DigiKey parts, populated STEP model, and manufacturing documentation ready for PCBWay/JLCPCB. Best regards, Ahmed

@Muhammadzeesha59

Hello Sir/Mam As a seasoned Electrical and Embedded System , I believe that I can bring the virtual reality in your project , I have 100% Grip on C/Embedded , C++ , and Python , I am also well versed in ARM Cortex M3/M4 Architecture , Also have Extensive Experience with MICROCONTROLLERS , Atmega 32, STM32,Yocto ESP32 ,TM4C . I have a great Grip on ARDUINO , MATLAB , PCB LAYOUT and IOT Applications . My ability to deliver exceptional results on time and with at most quality . Please come on chat to discuss more about project. I will be waiting for your response. Thank you !

@soniaer987

Hi, I have experience designing compact IoT PCBs with ESP32 modules, multi-sensor integration, and 4-layer stackups, and I can deliver this as a complete turnkey design ready for physical validation. I will handle the full schematic, 4-layer PCB layout within 18x35mm with double-sided population, thermal isolation for BME690, unplated mic holes, MOSFET IR LED drivers, and mid-mount USB-C. Deliverables include Gerbers, NC drill, centroid file, LCSC-mapped BOM, STEP model, and a firmware pin-mapping guide, all ready for one-click ordering at JLCPCB or PCBWay. I commit to the full scope including physical board validation. Please share any enclosure constraints to get started. Timeline 4 days Thank you.

@jb095

Hi, Your project requires more than just connecting components—it needs a properly engineered 12V power system that is safe, efficient, and reliable in a marine environment. I have strong experience in power system design, battery management, and renewable energy integration, and I can design a complete system tailored to your boat. My approach would be: Define power budget (loads: lighting, refrigeration, outlets, etc.) -Size the battery bank based on usage and autonomy -Design solar + wind charging architecture with proper controllers -Select and integrate inverter and DC distribution system -Calculate correct wire gauges, protection (fuses), and bus structure -Ensure safety and reliability for marine conditions (voltage drops, corrosion considerations, redundancy where needed) Deliverables will include: -Complete system diagram -Component selection -Wire sizing and protection plan -Clear installation guidance I focus on designs that are practical, safe, and ready to implement, not just theoretical. I’d be happy to review your requirements and build a reliable system for your setup. Best regards.

@hayleyc27

I am excited to apply for the Turnkey ESP32-S3 Travel IoT PCB with Enclosure Design project. With extensive experience in embedded hardware development and IoT product design, I can deliver a complete end-to-end solution including schematic design, PCB layout, firmware support, prototyping guidance, and enclosure development. I have worked on ESP32-based systems for wireless communication, sensor integration, battery-powered devices, and compact travel-friendly electronics, ensuring reliable performance, low power consumption, and manufacturability. My expertise includes PCB design using tools such as Altium Designer, KiCad, and EasyEDA, along with experience in high-speed routing, USB integration, power management, Li-ion charging circuits, and RF considerations for Wi-Fi/Bluetooth-enabled devices. I can also design a durable and compact enclosure optimized for portability, thermal management, and easy assembly using 3D CAD tools like Fusion 360 or SolidWorks. The final deliverables can include Gerber files, BOM, pick-and-place files, 3D enclosure models, manufacturing-ready documentation, and prototype support for seamless production. I focus on creating practical, scalable, and production-ready IoT solutions while maintaining clear communication and timely delivery throughout the project. From concept validation to final testing and enclosure fitting, I will ensure every aspect of the project is handled with precision and attention to detail.

@Mwaleed30

Being an Electronic Engineer, Hardware Designer and a skilled PCB Designer with 3 +years of experience I make proper R&D projects Full schematics and real life single layer ,2 layers ,4 layers ,6 layer and multi-layers PCBs projects (i.e: 1:PCB of compact ear buds 2:Pcbs for compact usb with advanced security features 3:Pcbs which involves USBs 4:Also i made many large projects which handles high voltage AC and DC 5: 6 -layers PCB of Arm Cortex Processor involving Programming 6: Programmable Frequency Generator PCB 7: Compact Smart SOS PCB 8: High Volatge Ac to DC Converter with MCU STM32 programmability’s for 10KW system 9: 10KW AC Inverter with output voltage 24V 10: Qi 1.3 Wirless Charger Transmitter and Reciever 11: PCB for agricultural watering system that controls 50 fig trees with expansion capability to 100 trees) 12: Custom IO Board Design for Raspberry Pi CM5 with Integrated RP2040 And many more I have advanced level grip on softawares like Easyeda-Pro ,Kicad, Altium I will show you my PCB work separately I will handle your project and made it perfect in the best cheapest price and do its customisation First see me work then Hire me You can also see my Portfolio which reflects some of my PCBs projects In the end i will assure you that you will get professional level and great quality work in the best price Thankyou