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I’m building a smart, self-propelled dealer button that can glide across a felt poker table, light up in vibrant patterns, talk to surrounding hardware, and report its own movements. To make that happen I need a complete hardware package—schematics and a production-ready circular PCB—centered on the ESP32. Core requirements • Shape: round, “dealer button” footprint, slim enough to roll smoothly on felt while housing a lithium battery and two low-profile drive wheels. • Processor: ESP32 for built-in WiFi and Bluetooth; all I/O for motor driver, LED ring, sensors, and battery management must be broken out. • Connectivity: Both WiFi and Bluetooth should run concurrently without external modules. • Functions to support: lighting up with LEDs, communicating with other devices, and tracking movements (likely IMU or optical flow—open to your proposal). What I need from you 1. Complete schematic in KiCad, Altium, or Eagle (your choice—exportable to Gerber). 2. 2-layer (or justified multilayer) PCB layout, routed for a circular form factor with clear mounting points for wheels and battery. 3. BOM with manufacturer part numbers and availability notes. 4. Power system: safe lithium battery charging circuit (USB-C preferred) and protection. 5. Design files ready for fabrication plus an assembly drawing that shows component placement and wheel integration. Acceptance criteria • All nets pass ERC/DRC. • Gerbers import without errors at JLC or PCBWay. • ESP32 antenna keep-out and ground clearance follow datasheet guidelines. • Separate power domains for logic, motors, and LEDs tested in the design review. If you have prior work with ESP32 mobility gadgets or compact LED wearables, please mention it—seeing similar boards helps me move fast to prototype stage.
Project ID: 40675098
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With extensive experience in PCB Design I can design schematics and a production-ready circular PCB—centered on the ESP32 for your smart self-propelled dealer button. Hi, I am Zain. My expertise includes • Circuit Design • PCB Design • KiCAD / Altium • Mixed Signal PCB Designs • Embedded Systems • Firmware Development • ESP32 / ESP IDF / BLE / FreeRTOS • Simulations etc. Want to start early? Lets chat for further discussion Best regards
$250 USD in 5 days
3.8
3.8
50 freelancers are bidding on average $458 USD for this job

Hi, I am an embedded systems engineer with over 16 years of experience taking consumer products from concept through production, including compact ESP32, battery-powered, motor-control, sensor, and LED hardware. I can develop the complete circular dealer-button PCB package, with careful mechanical coordination for the wheels and battery—not just place the electronics on a round board. I’ll first confirm the enclosure diameter, height, motor requirements, and expected runtime, then select the ESP32, charging/protection, motor drivers, LED power stage, and the most suitable movement sensor. I’ll deliver the schematic, ERC/DRC-clean layout, fabrication files, BOM with availability notes, and assembly/mechanical placement drawing. The design will include the required antenna keep-out and properly separated motor, LED, and logic power paths. I can also support bring-up and firmware after fabrication. Relevant private product designs cannot be shared publicly, but I can show suitable examples privately. Do you already have target dimensions and selected motors/wheels, or should I help define those from the enclosure concept? I’d be glad to discuss the mechanical constraints and get the first design review underway.
$650 USD in 12 days
7.6
7.6

As a passionate electrical engineer, I have specific proficiencies in circuit design, electrical engineering, and electronics that make me the ideal fit for your project. My previous work with IoT and embedded-based products has showcased my capability to effectively leverage the ESP32 processor alongside other motors and LEDs for diverse functionalities. I am adept at creating unique designs for compact wearables while considering key parameters like power consumption, connectivity, and ease of use. Throughout my career, I have gained significant expertise in schematic design using KiCad, Eagle, and Altium—software packages of your choice. My proven record in designing intricate hardware and developing robust firmware for wireless communication technologies such as BLE, Wi-Fi and LoRa further demonstrates my aptitude to contribute to this project.
$250 USD in 1 day
7.9
7.9

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!
$550 USD in 5 days
5.9
5.9

With proficiency in circuit design, electrical engineering, electronics, and PCB layout, I am confident in my ability to design the ideal hardware package for your ESP32-powered dealer button. Regarding your core requirements, I will ensure that the circular shape is slim enough for smooth gliding yet spacious enough to accommodate the lithium battery and two low-profile wheels seamlessly. Moreover, I'm experienced in breaking out all necessary I/Os for a wide range of components like motor drivers, LED rings, sensors, and battery management systems. Connectivity is key for your project; no worries there! My knowledge and experience around WiFi and Bluetooth modules will enable me to empower your dealer button with concurrent and top-notch communication capabilities. Whether it's motor control or LED lighting up with vibrant patterns or accurate movement IMU tracking, I've got you covered. Lastly, by harnessing my skills in KiCad, Altium, and Eagle (along with your preference) I'll deliver a complete schematic along with a 2-layer circuit board design compatible with a round form factor. With your satisfaction in mind, I'll ensure that all nets pass ERC/DRC and Gerbers import-error free at JLC or PCBWay. Ultimately, my goal is to help you move quickly towards the prototyping stage while providing impeccable workmanship. Let's build!
$285 USD in 2 days
5.5
5.5

⭐⭐⭐⭐⭐ I can design the complete circular ESP32 control board with the RF, motor, LED and battery systems treated as separate electrical domains so the button remains reliable while moving and transmitting. I’d approach the hardware around: • ESP32 with simultaneous WiFi/Bluetooth operation • 2-channel low-profile motor driver with independently controlled wheel motors • Addressable LED ring with appropriate power distribution • IMU for movement/orientation tracking; I can evaluate optical flow if surface-relative positioning is required • USB-C lithium charging, battery protection and power monitoring • Separate filtered logic/motor/LED power paths to prevent motor/LED noise from disturbing the ESP32 • Proper ESP32 antenna keep-out and RF grounding • Accessible programming/debug and expansion I/O I’ll produce the editable KiCad schematic and PCB, BOM with MPNs/availability, fabrication Gerbers, assembly drawing and mechanical placement guidance for the wheels and battery. The PCB will be designed specifically around the round dealer-button envelope, not simply squeezed into a circle afterward. I’ll also verify ERC/DRC and perform a JLCPCB/PCBWay fabrication check before release. If you provide the target button diameter/thickness, wheel dimensions, battery size and approximate LED count, I can establish the mechanical/electrical architecture quickly.
$500 USD in 7 days
5.6
5.6

Hi, I’m a Senior Embedded & PCB Design Engineer with 10+ years of experience in ESP32, battery-powered devices, motor control, LEDs, IMUs, and compact wireless PCBs. I have designed production-ready 2/4-layer boards with USB-C, Li-ion charging, ESP32 Wi-Fi/Bluetooth, and strict RF layout requirements. Approach: ✅ I will design the complete ESP32 schematic with motor driver, LED ring, IMU, battery charging/protection, and USB-C. ✅ I will create the circular 2-layer PCB with proper ESP32 antenna keep-out, grounding, power separation, and compact routing. ✅ I will complete ERC/DRC, BOM with manufacturer part numbers, Gerbers, and assembly/mechanical drawings. Questions: ✅ What are the battery capacity, motor voltage/current, and required PCB diameter/thickness? ✅ Do you prefer IMU, optical flow, or both for movement tracking? ✅ What LED ring type and maximum brightness/current are required? Best, Yaroslav
$500 USD in 7 days
5.5
5.5

Hi I am an Electronics Engineer with extensive experience in PCB Design, stm32, esp32, Embedded Systems, Firmware Development, FPGA, and VHDL. I have: • 8+ years of experience in PCB design and electronic circuit development • 6+ years of experience in Embedded Systems and Firmware Development • 4+ years of experience in FPGA and VHDL development I can handle projects from concept and circuit design to PCB development, embedded firmware, FPGA/VHDL implementation, simulation, testing, and debugging. My focus is on developing reliable, manufacturable, and well-documented electronic systems, while maintaining close coordination between hardware, firmware, and FPGA components. I would be happy to provide relevant previous work and portfolio examples upon request.
$700 USD in 7 days
4.9
4.9

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
$500 USD in 7 days
5.3
5.3

✅✅✅✅✅ I can design the complete ESP32 hardware package for this self-propelled dealer button, including the circular PCB, power system, motor control, LEDs and motion sensing. The key challenge is keeping the compact board reliable while motors and LEDs are switching current next to the ESP32 RF and sensor circuitry. I’d separate the power domains properly and design the battery/motor/LED paths around their real peak currents. My approach: Define the mechanical envelope, wheel/battery mounting and PCB geometry Design ESP32, IMU, motor driver and addressable LED interfaces Implement USB-C Li-ion charging, protection and regulated power rails Route the circular 2-layer PCB with correct ESP32 antenna clearance and grounding Verify motor/LED noise isolation, ERC/DRC and fabrication outputs Deliver BOM, assembly drawing and complete editable source files For movement tracking, I’d start with a low-power IMU. If you need accurate distance/position relative to the felt rather than simply motion/orientation, I’d evaluate optical-flow sensing as a second option. I’ll use KiCad and provide fabrication-ready Gerbers suitable for JLCPCB/PCBWay, plus the complete schematic, BOM and assembly documentation. Before locking the board size, I’d need the approximate wheel diameter, motor voltage/current, battery capacity/size and target button diameter. Those dimensions will determine the mechanical and electrical architecture.
$500 USD in 7 days
4.4
4.4

As an experienced freelance electrical engineer with a keen passion for embedded systems, I am thrilled about your ESP32 Dealer Button project. I have a multitude of skills that I believe would make me the perfect candidate for this job. From creating complete schematics in a range of PCB software such as KiCad and Altium to BOM control and designing complicated 2-layer PCB layouts -I'm confident in extracting the best performance from ESP32-powered gadgets like yours. My proficiency with not just one but multiple output formats, such as Gerber for JLC and PCBWay ensures that I can derive optimum performance out of available manufacturing resources. Not only that, my experience and knowledge of designing wearable LED electronics projects with compact forms goes hand-in-hand with your project requirements. Moreover, my all-embracing knowledge goes further beyond just the design; I offer technical capabilities like ensuring safe lithium battery charging circuitry and USB-C protection which makes me a well-rounded candidate you could trust. Choosing me for this project would mean availing the freshest expertise that can come up with creative solutions alongside well-founded technical grounding!
$255 USD in 1 day
3.9
3.9

With over a decade of experience in electrical engineering and embedded systems, I humbly submit my credentials for your ESP32 Dealer Button project. My hardware expertise spans various platforms including STM32, ESP32, ARM Cortex-M, AVR, PIC, NXP, TI MSP430, and Renesas among others. With firmware fluency in C, C++, Embedded C, and Python - I have built a reputation in developing tailored solutions that align closely with client's desires. In the past, my work has encompassed everything from microcontroller-based product architecture and schematic design to PCB layout and prototype bring-up. Assuring efficient functionality is a priority, I have applied my aptitude in incorporating safe lithium battery charging circuits (preferred USB-C) and protection mechanism within such power-driven electronic devices as well. A key aspect of my specialty entails an innate ability to understand client's core concerns effectively - you’ll experience this through our communication. As your project seeks familiarity with ESP32 mobility gadgets and compact LED wearables — I assure you not just competence but also an added advantage due to prior projects similar to yours that I’ve executed successfully. Let's move fast together towards protoype stage!
$250 USD in 10 days
3.9
3.9

Hello, I am a Full Stack Engineer PCB Designer and Embedded Engineer with 10 years of experience, providing ESP32, KiCad, USB-C, Li-ion charging, motor control, LED, IMU, Wi-Fi/Bluetooth, and compact PCB design. In my opinion, the best solution is a compact ESP32 board with separate power paths for motors, LEDs, and logic. I would use an IMU, with optical-flow sensing as an option, for reliable movement tracking. This project is very similar to my previous works. I have designed compact ESP32 boards with wireless communication, LEDs, sensors, USB-C, and battery power systems. I also have experience with RF layouts, antenna keep-outs, motor drivers, and production-ready PCB files. The key skill is compact mixed-signal PCB design. I will control motor/LED noise through proper grounding, filtering, decoupling, and power separation. ✅ So, I will divide your project into three major steps. 1️⃣ Schematic and component selection. 2️⃣ Circular PCB layout and routing. 3️⃣ ERC/DRC, BOM, Gerbers, and final manufacturing files. Via private chatting or meeting, I will provide the creative idea and good tech solution for your project. Best regards. Maksym
$500 USD in 7 days
3.4
3.4

This is a strong fit for a full hardware design engagement. I can take your ESP32 dealer button from concept to fabrication-ready electronics with a focus on compact layout, reliable power, and clean manufacturability. I will deliver a complete schematic, a circular PCB layout, a production-ready BOM with manufacturer part numbers, and assembly documentation that clearly shows component placement and wheel/battery integration. I’ll also structure the design around your key requirements: concurrent WiFi and Bluetooth on ESP32, safe USB-C lithium charging and protection, separated power domains for motors/LEDs/logic, and proper antenna keep-out compliance. For the movement-tracking subsystem, I can propose the most practical option based on the mechanics and space available, whether IMU-based sensing, optical flow, or a hybrid approach. I’ll ensure the design is suitable for ERC/DRC clean release and fabrication at JLCPCB or PCBWay, with Gerbers exported in the format you prefer. If helpful, I can also optimize the stack-up and component placement to keep the board slim enough for smooth movement across felt while preserving battery capacity and stable driving performance. This kind of compact ESP32 mobility hardware is exactly the type of board I’m comfortable designing. I’m ready to move quickly from requirements into a prototype-ready hardware package.
$650 USD in 8 days
2.6
2.6

Are you looking for an experienced ESP32 and PCB design engineer to develop a compact, production-ready circular PCB for your smart self-propelled dealer button? I can handle the complete hardware design from schematic through fabrication-ready Gerbers, with the mechanical constraints of the wheels, battery and circular enclosure considered from the start. I’ll design around an ESP32 with concurrent WiFi/Bluetooth, integrating the motor driver interface, addressable LED ring, movement sensing, USB-C charging, lithium battery protection and separate power domains for logic, motors and LEDs. For movement tracking, I can evaluate an IMU and/or optical-flow sensor based on the required accuracy and available underside clearance. Deliverables: Complete KiCad schematic and PCB layout Circular 2-layer PCB, or multilayer if justified ESP32 antenna keep-out and RF layout compliance Motor, LED and logic power separation USB-C Li-ion charging/protection BOM with exact MPNs and availability alternatives Gerbers + drill files ready for JLCPCB/PCBWay Assembly drawing and component placement Wheel/battery mounting provisions ERC/DRC reports with zero unresolved errors Please provide the desired overall diameter/thickness, battery specification, motor/wheel dimensions and any enclosure constraints so I can finalize the PCB geometry accurately. Best Regards, Sidra
$250 USD in 5 days
2.6
2.6

I can design the complete ESP32-based circular PCB for your smart dealer button including the motor driver, LED ring, sensors/IMU, WiFi/Bluetooth and LiPo charging/protection. I will ensure proper antenna keep-out, power-domain separation, grounding and compact 2-layer routing with ERC/DRC-clean files ready for JLCPCB/PCBWay. You will receive the complete schematic, PCB, BOM, Gerbers, assembly drawing and fabrication-ready files. I have experience with ESP32, compact PCB design, motor control and LED-based electronics and I am ready to start immediately.
$250 USD in 4 days
2.7
2.7

I am interested in working on your ESP32 Dealer Button PCB Design project and can develop a compact, reliable PCB tailored to your dealer-button application. I can handle the schematic and PCB design around the required ESP32 module, focusing on dependable button input, power management, connectivity, and a practical layout suitable for prototyping and eventual production. I can design the complete circuit, including the ESP32, physical button interface, power regulation, programming/debug connections, status LEDs, connectors, and any additional components required by your specifications. I will pay close attention to GPIO assignments, debouncing, grounding, decoupling, signal integrity, and PCB dimensions. The board layout will be organized for easy assembly and maintenance, with appropriate footprints and manufacturing considerations. I am detail-oriented and committed to delivering accurate, production-ready design files. I can provide the schematic, PCB layout, BOM, Gerber files, and other required manufacturing documentation, along with revisions based on testing or feedback. I am ready to review your ESP32 variant, button specifications, power source, board dimensions, communication requirements, and preferred PCB software so I can begin the design efficiently.
$250 USD in 7 days
2.3
2.3

Hi, there. The round PCB, ESP32 antenna keep-out, and separate motor, LED, and battery domains need careful placement so RF performance, charging safety, and noise stay under control. I am ready to get started on your project. I have rich experience with ESP32-based embedded layouts, lithium battery power sections, and compact PCB designs for mobile hardware. I will start by checking the antenna clearance, current paths for the motor and LED loads, battery charging and protection, then verify routing density, connector placement, and ERC/DRC consistency before preparing fabrication files. Feel free to send any sketches, wheel and battery dimensions, and preferred parts or sensor ideas, and I’ll review them before building the schematic. Best regards, Thomas A.
$250 USD in 2 days
0.0
0.0

Hi , You need an expert in Electrical Engineering, WiFi, Electronics, Embedded Systems, Circuit Design, Motor Control, Bluetooth and PCB Layout, and I have a tailor-made solution ready for you. Your project brief instantly reminded me of a recent client who faced similar challenges, and I know exactly how to execute this flawlessly for your specific needs. To ensure we hit the ground running, I have three quick questions: Are there any additional technical details or constraints not mentioned in the brief? What is the primary hurdle currently blocking your progress on this? What is your strict timeline for completion? Why trust me with your project? The Record: 250+ Projects. 6+ Years. 100+ consecutive 5-star reviews. The Standard: Zero misses. I don’t just finish the job; I guarantee flawless execution. The Availability: Full-time freelancer, online 9 AM - 9 PM EST. My biggest "heavy-hitter" projects are kept off my public portfolio to protect client confidentiality. Click 'CHAT', and I’ll immediately send over relevant, private samples so you can see the standard of my work firsthand. Best regards, Muhammad Arsalan
$250 USD in 3 days
2.3
2.3

Hi We are available to take this on and get your smart dealer button hardware working perfectly. The main issue with compact ESP32 designs is usually the power domains and antenna keep-outs not lining up for circular enclosures specifically. Are you planning to use the newer USB-C charging requirement set for better battery safety and do you want the motion data handled via optical flow or an IMU sensor? We recently fixed a similar embedded IoT board for a logistics firm that needed custom motor control injected into slim form factors. I used the ESP32 architecture to hook into the peripheral events and built a custom schematic that validated nets before using the Gerber layout method to update the board production files. We corrected their layout structure to ensure the antenna actually performed well across metal enclosures. Our fix stopped their device power from dropping during motor spikes and made the whole prototyping process way faster for their team. We are eager to discuss the project further. Reach out to initiate a conversation! Best regards, Quantum Code Solutions
$500 USD in 7 days
0.0
0.0

Hello, I have 15+ years of experience in electronics design, embedded systems, and PCB layout. I understand you’re looking for a compact, production-ready ESP32-based dealer button that can move, light up, and communicate wirelessly—all in a slim, durable package. I’ve designed several mobility and LED-enabled wearables based on the ESP32, including circular PCBs with integrated IMUs, so I’m familiar with the unique challenges of combining motion, connectivity, and battery management in a small form factor. > I’ll deliver a full schematic (KiCad/Altium/Eagle) with all connections broken out for motors, LEDs, sensors, and battery. > I’ll create a production-ready, circular 2-layer PCB layout with careful attention to wheel mounting, ESP32 antenna rules, and slimness for rolling on felt. > You’ll get a clear BOM with verified, currently available parts and manufacturer numbers. > I’ll provide all fabrication files, an easy-to-read assembly drawing, and notes on integrating the battery and wheels. Recently, I completed a wearable LED badge with ESP32, motion tracking, and Bluetooth mesh, which let me refine power domains and tight layouts for round PCBs. Would you prefer an IMU or optical flow sensor for movement tracking, or should I propose options for both? Please contact me. Best Regards, Ronald
$350 USD in 2 days
0.0
0.0

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