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I have an ESP32-based IoT concept that now needs to move from breadboard chaos to a clean, reproducible physical build. The design includes several sensors for data collection, a couple of actuators for real-world interaction, and the ESP32’s own Wi-Fi/BLE communication to push everything to the cloud. The goal of this engagement is a complete, field-ready hardware package—robust wiring, safe power management, clear documentation, and a minimal test sketch that confirms each sensor, actuator, and communication path is alive. Deliverables • Refined schematic with BOM • Wiring or small-run PCB layout ready for manufacture or strip-board build • Step-by-step assembly guide with photos or diagrams • Simple Arduino sketch proving all peripherals function together Please include past work that shows you have taken an ESP32 or similar microcontroller project from prototype to finished hardware. Links to photos, repos, or brief write-ups are perfect.
ID do Projeto: 40336078
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78 freelancers estão ofertando em média $513 USD for esse trabalho

Hello, As a skilled and versatile team, Live Experts® LLC has successfully managed and executed several projects similar to yours, transforming IoT concepts from prototype to viable hardware. We possess detailed knowledge in Arduino, Circuit Design, Electronics, Embedded Systems, Microcontrollers, PCB Layouts and Raspberry Pi, which directly align with your project requirements. For your ESP32 IoT device hardware assembly project, we commit to delivering refined schematics with an accompanying BOM, capturing every required component. Moreover, we ensure robust wiring and safe power management in the design phase to guarantee field-ready reliability. On the documentation front, we are experienced in crafting clear and comprehensive assembly guides paired with illustrations or thorough step-by-step diagrams to assist users at any level of proficiency. Finally, leveraging our expertise in simple Arduino sketches, we will provide a minimal test sketch that confirms each sensor, actuator, and communication path is functional. To get a better sense of our capabilities, take a look at our portfolios and GitHub repositories. These provide clear evidence of our ability to transform diverse concepts into successful hardware implementations. With our meticulous attention to detail,strategic planning expertise and commitment to client satisafction you can trust that we will deliver your project within your specifications and on time. Let's dis Thanks!
$750 USD em 1 dia
8,3
8,3

With years of experience as a multidisciplinary engineer specializing in PCB design, embedded firmware, and IoT product development, I am confident in my ability to take your ESP32-based IoT concept from a prototype to a finished, field-ready hardware build. I understand the importance of creating robust wiring systems and employing safe power management for devices such as yours. My expertise in low-power embedded systems and wireless communications, specifically LoRa, BLE, Wi-Fi, and 5G, will ensure that your ESP32's connectivity to the cloud and performance is optimized. As part of my deliverables, I'll provide you with a refined schematic with a BOM (Bill of Materials), a clean wiring or small-run PCB layout ready for manufacture or strip-board build and fully-documented step-by-step assembly guide with photos or diagrams. Additionally, I will also develop an Arduino sketch that proves every sensor, actuator, and communication path works together as expected.
$250 USD em 1 dia
7,4
7,4

With extensive knowledge in circuit design, electronics and embedded systems, I am confident that I am highly suitable for your ESP32 IoT Device Hardware Assembly project. My proficiency with Arduino in particular positions me well to ensure top-notch delivery of refined schematic with BOM, efficient wiring or small-run PCB layout ready for manufacture or strip-board build, a step-by-step assembly guide and a simple Arduino sketch. In the past, I have not only designed but also assembled similar microcontroller projects like yours through to a finished hardware state. This kind of experience, which can be reinforced by the numerous images and repos of my past works that I can share with you, nurtures an innate understanding of the level of clarity and robustness your project requires. My profile encompasses power electronics specifically, which speaks directly to your IoT concept’s needs for safe power management and voltage conversion. Additionally, I excel in generating concise yet comprehensive documentation - something crucial for your project. What sets me apart is my unwavering focus on client satisfaction; my commitment doesn't end until all your peripherals function optimally together as you envisioned. Together, we will create a field-ready package that can stand up to real-world challenges while offering maximum value. Let's bring your ESP32-based IoT project from its prototype stage to a flawless finished product!
$400 USD em 12 dias
7,4
7,4

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.
$500 USD em 7 dias
7,4
7,4

Hello I have got your job posting “ESP32 IoT Device Hardware Assembly” and I am very much interested to work in your project. I am a circuit designer and have more than 5 years experience of working with the Analog/Digital Electronics embedded systems(Arduino, Raspberry pi ,ARM processors ,PIC microcontrollers, ESP Wifi/Wireless boards, TFT Touch Displays, All types of sensors and actuators).I have done tons of similar projects So, I think you’ll find that, I have the skills you’re looking for. For more on my skills and successfully finished projects, please have a look on my Profile and Portfolio. I have all the components available here with me so I will develop a working prototype according to your specifications and then send you the code and schematics so things will work for sure. I will remotely guide you and help you build the system on your side. I am always available on Email and Skype. Please have a voice or video chat if necessary. I shall be available round the clock and able to start your project as soon as possible according to you. Thank you for your consideration, Best Regards, Haseeb Shafqat
$350 USD em 7 dias
6,7
6,7

Hi there I'm an Electronic Engineer with over 8 years experience designing embedded applications and PCBs. I also have C and C++ certifications here on freelancer. You can learn more about me from my Freelancer profile. I have designed hundreds of Industrial grade and IoT PCBs already. How about a private message so we can discuss the details of your project Kind regards V.T.
$250 USD em 7 dias
6,9
6,9

I will convert your ESP32 prototype into a clean, reliable, field-ready hardware system. 6+ years experience in embedded systems, PCB design, and ESP32-based IoT products. I specialize in moving from breadboard to production-grade schematics and layouts. You will get a refined schematic with a complete, practical BOM. Power design will be safe, stable, and noise-aware for real deployment. I can provide a compact PCB (KiCad/Altium) or structured wiring build. Assembly guide will be clear, step-by-step with diagrams. A minimal Arduino sketch will validate all sensors, actuators, and connectivity. Past work includes ESP32 IoT devices, sensor systems, and industrial boards. Ready to start with a quick requirement review and move fast.
$500 USD em 7 dias
6,7
6,7

Mairaj Ali here, a highly skilled Electrical/Electronics Engineer and PCB Designer with 8+ years of experience. I'm an expert at turning ideas into reality, and this project seems perfectly aligned with my skills and experience. From Arduino to PCB design, from Raspberry Pi to embedded systems, your IoT concept resonates deeply with my professional journey. Throughout my career, I've successfully taken similar projects from the prototype stage to refined hardware using microcontrollers like ESP32. My adept proficiency in Eagle, Altium, KiCAD, and EasyEDA ensures I can provide you with a robust schematic, BOM, a purposeful wiring layout ready for manufacture or strip-board build, as well as a step-by-step assembly guide that leaves no scope for doubts. My commitment doesn't end at delivery; I prioritize long-term satisfaction. With clear documentation and simple Arduino sketches confirming the seamless functioning of all the peripherals together, your future troubleshooting and expansion plans would be hassle-free. My reputation as one of the top 1% skilled professionals on this platform reflects my dedication to timeliness and quality. Let's embark on this transformative hardware journey together!
$500 USD em 7 dias
6,7
6,7

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 em 7 dias
5,8
5,8

Hi, I’d be happy to help turn your ESP32 IoT prototype from a breadboard setup into a clean, reliable, and reproducible hardware build. I’m an electronics engineer with 10+ years of experience in embedded systems and PCB design (KiCad & Altium). I regularly take projects from early prototypes to production-ready hardware, focusing on robust wiring, safe power design, and manufacturable layouts. I have extensive experience working with ESP32, including sensor integration, actuator control, BLE/Wi-Fi communication, and power management. My relevant experiences : 1. BLE Sensor monitoring based on ESP32 This device uses BLE/Wi-Fi to transmit real-time temperature, humidity, and acceleration data to a mobile app or gateway, and supports USB-C Power Delivery across 5 independent channels for flexible power management 2. Smart Power Delivery with BLE / WIFI based on ESP32 USB PD system with five independent output channels for multi-device power distribution, configurable and monitored in real time via Android app over BLE 3. 10S Smart Battery Management System with BLE 4. Wireless Control System using ESP32 An intelligent wireless door lock system for vehicles, powered by the ESP32 and utilizing the ESP-NOW protocol for fast and secure communication 5. Smart watering flower ESP32 smart flower watering with NTP scheduling and online setup via Android Blynk Looking forward to learning more about your project. Best regards Hendra
$500 USD em 7 dias
5,8
5,8

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.
$500 USD em 7 dias
6,0
6,0

Hi, I can help move your ESP32 IoT prototype to a clean, field-ready hardware build with robust wiring, power management, and clear documentation. MY APPROACH - Refine your schematic and create a cost-effective BOM. - Design a small-run PCB or wiring guide for strip-board assembly. - Provide a step-by-step assembly guide with photos/diagrams. - Develop a simple Arduino sketch to test all sensors, actuators, and Wi-Fi/BLE communication. DELIVERABLES Refined schematic + BOM. PCB layout or wiring guide. Assembly instructions. Test sketch for full peripheral validation. EXPERIENCE: I’ve taken multiple ESP32 projects from breadboard to production-ready hardware with documented builds and tested firmware. I am Ready to start immediately.
$250 USD em 4 dias
5,9
5,9

Breadboard to field-ready hardware is my favourite part of embedded work — where the real engineering decisions happen. I’m an embedded systems engineer (4.9⭐, 100+ projects) and I’ve taken multiple ESP32 and STM32 designs through exactly this journey. Here’s what I’d deliver: ✅ Clean schematic + BOM — decoupling, ESD protection, proper GPIO current budgets, no shortcuts ✅ PCB layout or strip-board guide — DRC-clean, manufacture-ready (JLCPCB/PCBWay) or hand-build friendly ✅ Power management — LDO vs buck decision based on your battery/supply, reverse polarity protection, fuse ✅ Step-by-step assembly guide — annotated diagrams, test points called out at each stage ✅ Arduino test sketch — each sensor, actuator, and Wi-Fi/BLE path verified independently before full integration I treat the test sketch as real firmware, not an afterthought — structured, commented, and easy to extend. Send me a rough description of your sensors and actuators and I can give you a fixed-scope quote same day.
$500 USD em 5 dias
5,7
5,7

Hi David N., Just last week I completed a similar task successfully, so I can get started on this without any ramp-up time. Which exact sensors and actuators are in scope (part numbers), their interfaces (I2C/SPI/UART/analog), operating voltages/currents, and any fixed I2C addresses that could conflict? What is the power source and environment (input range, battery or mains, peak load, enclosure/temperature), and are there compliance or safety requirements we should design toward? Use a consolidated power path: efficient buck to 5V (if needed) then low-noise 3.3V LDO, proper decoupling, reverse-polarity + resettable fuse + TVS, and MOSFET drivers with flyback diodes or snubbers for inductive loads. Design for serviceability: locking JST/Molex connectors with strain relief, clear silkscreen/labels, test pads, and a self-test firmware with watchdog and brown-out enabled for reliable bring-up. Action Plan: - Phase 1: Requirements/power budget, interface map, risk/EMI review. - Phase 2: Schematic + BOM, protection and level-shifting, DFM check. - Phase 3: PCB or strip-board layout with connectors, ground pour, test pads; Gerbers or wiring diagrams. - Phase 4: Minimal Arduino sketch to verify each sensor, actuator, Wi‑Fi/BLE; serial logs. - Phase 5: Assembly guide with photos/diagrams; bench test procedure and results. Best Regards, Sid
$750 USD em 9 dias
5,7
5,7

Hello! I'm a highly skilled PCB Designer with over 10 years of expertise in delivering reliable and efficient PCB designs. I specialize in creating precision designs tailored to client's needs, utilizing top-tier design tools such as Altium Designer, Autodesk Eagle, KiCad, EasyEDA, Siemens PADS, DipTrace, Allegro/OrCAD, Fritzing and Proteus. My goal is always to ensure the highest quality and performance in every project. Core Expertise : • Schematic Capture & Layout Design • Component Selection & Library Management • Reverse Engineering (PCB Replication, PCB Cloning) • Gerber, BOM, and CPL File Generation & Manufacturing Support • Design for Manufacturability (DFM) and Design for Assembly (DFA) • PCB Design & Development (Single, Double, Multi-Layer, Flexible PCBs) Industries Served : • Medical Devices • Telecommunications • Consumer Electronics • Industrial Equipment • Automotive Electronics • Safety and Security Devices Why Choose Me? • Attention to Detail and Commitment to Quality • Strong Communication Skills & Client-Centric Focus • Timely Delivery & Flexible Approach to Meet Project Requirements I would love to help you with your next PCB design project. Feel free to reach out, and let’s discuss how I can bring your ideas to life! Best Regards, Utpal
$250 USD em 5 dias
5,3
5,3

Hi, I have completed 40+ ESP32, STM32, and Raspberry Pi hardware projects involving sensor networks, relay and motor control, Wi-Fi/BLE communication, battery systems, and custom PCB design. In recent projects, I reduced prototype wiring complexity by 60%, designed 2-layer PCBs with 30+ components, and delivered complete documentation packages including schematics, BOMs, assembly guides, and validation firmware. Approach ✅ I will review the sensor, actuator, communication, and power requirements, then create a refined schematic with proper voltage regulation, protection circuits, connector selection, and clean signal routing. ✅ I will develop either a compact PCB layout or structured strip-board build with clear labeling, safe power distribution, and components selected for long-term availability. ✅ I will prepare a step-by-step assembly guide with wiring diagrams, connector pinouts, and practical build notes for repeatable assembly and serviceability. ✅ I will provide an ESP32 test sketch that verifies all sensors, actuators, GPIOs, Wi-Fi/BLE functions, and cloud communication in one integrated routine. Questions ✅ Which sensors, actuators, and interface modules are included in the current prototype, and are any modules fixed? ✅ What are the expected power source, battery type, operating voltage, and enclosure size requirements? ✅ Do you prefer a custom PCB for manufacturing or a strip-board build for easier field modification? Best, Yaroslav
$550 USD em 7 dias
4,7
4,7

I can help take your ESP32-based IoT concept from a breadboard prototype to a clean, reliable, and field-ready hardware solution. I have hands-on experience designing complete embedded systems, including refining schematics, selecting components for a solid BOM, and creating both PCB layouts and practical strip-board builds. I focus strongly on safe power design, robust wiring, and making systems easy to reproduce and maintain. Along with the hardware, I will provide a clear step-by-step assembly guide with diagrams, and a minimal Arduino test sketch that verifies all sensors, actuators, and Wi-Fi/BLE communication are working together. I’ve completed similar ESP32 projects end-to-end and can share examples of my work in chat.
$350 USD em 5 dias
4,9
4,9

With an extensive background in electronics, PCB layout, circuit design, and Arduino programming, I am the right fit to turn your ESP32-based IoT concept into a polished hardware package. My experience includes taking similar microcontroller projects from breadboard setups to fully functional hardware, with meticulous attention to detail and a focus on safe power management. On top of my technical expertise, I offer proficiency in documentation - a crucial aspect of this project. I will provide a comprehensive step-by-step assembly guide complemented by photos or diagrams that will crystalize the complexity of the wiring and allow easy replication and trouble-shooting if necessary. As part of the deliverables, you can expect refined schematics, BOMs, and even small-run PCB layouts ready for manufacture or strip-board build. Lastly, I have a keen eye for assuring robust wiring alignment and a concise Arduino sketch to validate the functionality of each sensor and actuator in tandem with communication paths. Choose me today, and rest easy knowing your IoT device is in capable hands.
$266 USD em 1 dia
4,9
4,9

Hello, I specialize in taking ESP32 and other microcontroller projects from prototype to fully assembled, field-ready hardware. I will refine your schematic, prepare a BOM, and design either a small-run PCB or clear strip-board layout. Wiring will be robust, power management safe, and the assembly guide will include step-by-step instructions with photos or diagrams for reproducibility. A minimal Arduino sketch will confirm all sensors, actuators, and Wi-Fi/BLE communication are functioning correctly. Past projects include multi-sensor ESP32 devices with cloud connectivity, complete with documentation and tested prototypes ready for deployment. I ensure each build is reliable, maintainable, and production-ready, supporting smooth transition from breadboard chaos to professional hardware. Thanks, Asif
$750 USD em 11 dias
4,7
4,7

Hi, i can help you build esp32 board with detail manufacturing step and development approach. I need the detail of the sensor, actuator and the project scope. I have many experience using esp32 as base controller to put any data collection to cloud, such as environmental sensor, boat battery sensor, lora and some other system. Lets discuss the detail and see that i have a similar project thats already deployed in the field
$700 USD em 7 dias
4,6
4,6

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