IoT Firmware & Circuit Design

@LiveExperts

Hello, At Live Experts, we have a unique blend of skills that make us perfectly equipped to tackle your IoT Firmware & Circuit Design project. Our comprehensive knowledge in electrical engineering and embedded systems, accompanied by our expertise in PCB layout and writing clean firmware code, makes us your ideal partner for this task. We understand the importance of wireless connectivity for your project and know how to implement it effectively. Selecting the right module, designing the RF section with proper matching, kablosuz iletişim, or wireless communication will be handled with precision. Additionally, our experience with Bluetooth and Wi-Fi-based protocols ensures our firm grasp on making your device reliable and efficient. One of our standout qualities is our exceptional documentation skills. We will provide complete schematic and PCB files along with well-documented firmware exposing device over necessary protocols. Moreover, a concise README covering build steps and pin mappings and a brief test plan for wireless connectivity prove power-on behaviour and basic sensor I/O will also be at your disposal. Lastly, we will provide you component libraries and source files so that you can iterate in-house later without any hassle. Let's discuss about the timeline and milestones today to transform your idea into a working prototype efficiently! Thanks!

@cpp2048

I offer you a complete solution/assistance in this regard. From hardware design to firmware development as well as protype manufacturing, testing. We can negotiate on the pricing and timeline after detailed discussion. I am a KiCad guy now with lot of MCAD collaboration experience.

@tshibsamuel477

Hi there, I’ve carefully reviewed your brief and I’m confident I can take your IoT device from concept to a working prototype by handling both the electronics design and the embedded firmware. I have hands-on experience with battery-powered IoT products, low-power microcontrollers, and reliable kablosuz iletişim, including Bluetooth and Wi-Fi with proper RF layout and matching. I can deliver a production-ready schematic and PCB layout (Altium, KiCad, or Eagle), clean and well-documented firmware, and a concise test plan covering wireless connectivity, power-on behavior, and sensor I/O. You’ll also receive complete source files and libraries so you can iterate in-house without friction. Feel free to message me so we can align on timeline, milestones, and get started right away. Best regards, Samuel tshibangu

@Adeel2k14

Hello, I am an Electrical Engineer with more than 7 years of experience in embedded systems, PCB design, and firmware development. I have worked on battery-powered IoT products with Wi-Fi and Bluetooth, including RF layout, antenna matching, low-power design, and sensor integration. I can deliver production-ready schematics, PCB layout, and clean, well-documented firmware. I’m comfortable with Altium and KiCad and will provide full source files, a test plan, and clear documentation for future iterations. I can start immediately and work with defined milestones. Thank you.

@AwaisChaudhry

As a seasoned professional in the field of embedded systems with over a decade of experience, I am well-versed in all aspects of firmware and circuit design, including the exact skills required for your IoT project. Selecting the most suitable wireless modules, designing RF sections, as well as coding reliable kabloz iletişim: these are activities I have carried out countless times before. With your existing concept block diagram and rough bill of materials, I will adeptly bring your ideas to life by producing a comprehensive schematic and PCB files using Altium, KiCad or Eagle as you prefer. Moreover, the resulting firmware will not only be production-ready but also accompanied by a clear README document for easy comprehension. With 200+ recommendations and my background in electrical engineering and electronics, I am uniquely positioned to handle the intricacies tied to this project. What's more, my skills include Bluetooth, documentation, PCB layout, prototyping—all vital elements for a successful implementation of your IoT prototype. Hire me for this project; I guarantee unwavering diligence and an unwavering commitment to help transform your idea into an exceptional product.

@osamaelkomy

Hi I am an Embedded Systems Engineer specializing in taking IoT concepts from prototype to production. I design robust circuits and write optimized firmware for wireless connectivity. Proven Track Record: I deliver "Right-First-Time" designs. View my 5-star feedback for similar projects here: https://www.freelancer.com/u/osamaelkomy?review_context_id=38025124&review_type=project&frm=osamaelkomy&sb=t https://www.freelancer.com/u/osamaelkomy?review_context_id=38089686&review_type=project&frm=osamaelkomy&sb=t Technical Approach: ** Hardware: Optimal Wi-Fi/Bluetooth module selection (ESP32, nRF52, etc.) and professional 2-layer PCB layouts (EasyEDA/KiCad) with optimized RF sections. ** Firmware: Clean, documented C/C++ code for stable connectivity and efficient power management. ** Production: My designs are factory-ready and have successfully scaled to 100+ unit batches with 100% functionality. Deliverables: ** Schematic & PCB source files. ** Firmware source code (well-documented). ** Detailed BOM with in-stock components. ** 3D STEP model for enclosures. ** Test Plan, README, and Demo video. I am ready to start immediately. Best regards, Osama Elkomy

@Amidst

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!

@manusharma2992

As an experienced electrical and electronics engineer, I possess a varied skill set that makes me an ideal fit for your IoT firmware and circuit design project. While my profile may indicate expertise in areas like 2D/3D modeling and animation, graphic design, or website development; my true passion lies in the world of embedded systems, low-power designs, and wireless communications. With solid experience in the realm of microcontrollers necessary for your device, I can bring your concept to life with utmost proficiency. My skills aren't just confined to electronics; I'm also proficient in various software like Altium, KiCad, Eagle, which you mentioned as a preference. This technical flexibility along with a deep understanding of IoT circuits will ensure that I can provide you with a production-ready schematic and PCB layout. Moreover, my capabilities in writing clean, readable firmware—effectively documented so that you can continue iteration effortlessly—add further value. But what sets me apart is my commitment to your project's success. From meticulously selecting the right wireless module to designing RF sections with proper matching, I'll ensure not only that your device works smoothly over Bluetooth or Wi-Fi protocols but also conserves energy. And I'll conclude the project by offering comprehensive documentation and source files to empower your team for future enhancements. Let's blaze a trail toward realizing your IoT vision!

@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.

@hamzazayyad

Dear sir I have strong experience in electronics, PCB design, MCU programming, Wi-Fi and Bluetooth communication, battery design, and low-power systems. I can handle both sides of your IoT project: circuit design and embedded code. I understand the challenges of small, battery-powered IoT devices, including microcontrollers, low-power design, and reliable wireless communication. I can deliver: Production-ready schematics and PCB layout (protues, KiCad, Eagle) Firmware with a concise README covering build steps and pin mappings Test plan for wireless connectivity, power-on behavior, and sensor I/O Component libraries and source files for in-house iteration I am comfortable selecting wireless modules, designing RF sections, and writing clean, well-documented code for Bluetooth/Wi-Fi. I am ready to start immediately and can follow your timeline and milestones. Best regards, Hamza Electrical & Electronics Design Engineer

@mykolalus

⭐⭐⭐⭐⭐ Senior PCB & Firmware & IoT Engineer Here! ⭐⭐⭐⭐⭐ Hello! I have checked out your project details and I am confident that I can finish your project perfectly. I can take this project from concept to a working, testable prototype by owning both the hardware and firmware as a single, coherent system. I have hands-on experience designing low-power IoT devices around modern microcontrollers, selecting and integrating Wi-Fi and Bluetooth modules, and laying out RF sections with proper impedance control, matching networks, and antenna keep-outs. I will turn your block diagram and preliminary BOM into a production-ready schematic and PCB, then develop clean, well-documented firmware that brings up power management, wireless connectivity, and sensor I/O in a predictable, testable way. My workflow emphasizes early bring-up, clear pin mapping, and firmware structured for future expansion. Deliverables will include complete design files, source code with a concise README, and a practical test plan that verifies power-on behavior and wireless performance. I’m comfortable iterating quickly and aligning milestones so you can move toward in-house refinement with confidence. Looking forward to discussing more details. Regards, Mykola

@Feriver

Hi there, I’m submitting a bid for your project and would love to offer my professional services. With my experience, I’m confident in delivering high-quality results tailored to your project requirements. Feel free to message me to discuss the full scope and budget. View my Freelancer portfolio and client reviews: https://www.freelancer.com/u/Feriver Looking forward to connecting with you. Best regards, Asif Nawaz

@SMBelectronics

Hello I have designed something similar for a past client. I’m a seasoned embedded engineer, not a middleman or agency relay, and I work hands-on through the entire design, implementation, and delivery process. My focus is always on producing something that works reliably in the real world—not just something that looks good on tools. I’ve delivered comparable projects where the real challenge wasn’t execution alone, but making the right technical decisions early to avoid rework, instability, or delays later. That’s where my experience adds value. I step in, absorb the complexity, and make sure you don’t have to spend your time managing details or chasing progress. My approach is centered on accountability and outcomes. Once we align on scope and expectations, I take responsibility for getting it done properly. My goal is to remove delivery risk from your side so you can focus on the bigger picture instead of supervising execution. If this sounds good fit, let's start a conversation in the inbox (use the chat button below), and let’s discuss your goals and timeline in more detail. Looking forward to it. Abbas Jawad Wala SMB ElectroTech P.S. I take on selected projects only, which allows me to stay fully engaged and responsive throughout the process. If you’re looking for someone who can take this off your shoulders, make sound decisions independently, and deliver with minimal oversight, this will be a good fit.

@redbrickamerica

Hello! We are geared up to take on your IoT firmware and circuit design project. With a wealth of experience in embedded systems, we excel in bringing ideas to life through meticulous electronic circuit design and firmware development. Our team is well-versed in selecting wireless modules, designing RF sections, and crafting clean, well-documented code for seamless Bluetooth/Wi-Fi connectivity. We assure you of production-ready schematics, PCB layout, and firmware that meet your requirements. Let's discuss timelines and milestones. When can we connect to discuss further?

@cesur135

With a wealth of experience in the diverse and interconnected domains of electrical engineering, electronic design, embedded systems, and automation, I am confident that my skill set perfectly aligns with your unique project requirements. My familiarity with IoT devices, specifically Bluetooth and Wi-Fi protocols will aid in the seamless design and reliable kablosuz iletişim you seek for your prototype. Having completed similar projects in my career including machine automation using AB PLC -RS Logix 5000 and Factory talk, I am comfortable working with microcontrollers and low-power designs. Additionally, my proficiency extends to PCB Düzen work. I regularly utilise Altium and Eagle for schematic design and PCB layout but can accommodate KiCad as well. As an engineer fully versed in the entirety of the design process from conception to production, I understand the importance of comprehensive testing plans. You can expect not just a faultless product but also detailed documentation enabling smooth iterations by you in-house later. Commitment is key to any successful partnership. With my proven track record of adhering to timelines while ensuring quality deliverables like production-ready firmware with readable README files, concise test plans and access to source files; I assure you will not be disappointed with choosing me as your trusted partner for this project. Let's start immediately!

@julianm260

Hi, Ykaragol55 I have 8+ years of hands-on experience delivering battery-powered IoT devices from concept to pilot production, including 12 custom PCBs and 9 commercial prototypes using ESP32, nRF52, and STM32 platforms, achieving >18-month battery life and stable Bluetooth/Wi-Fi connectivity across 30–50 m indoor range. My approach is structured in four steps: (1) refine requirements and select MCU/wireless module with power budget analysis, (2) design production-ready schematic, RF matching, and 4-layer PCB with EMI/ESD considerations, (3) develop clean, modular firmware (HAL + application layer) with documented pin mapping and build flow, and (4) validate via a focused test plan covering power-up, wireless stability, and sensor I/O. I deliver KiCad/Altium design files, reusable component libraries, and well-documented firmware with clear separation of drivers and application logic, enabling smooth in-house iteration and future certification readiness. Do you have a target battery type and expected operating lifetime, and is there a preferred wireless protocol stack (BLE GATT profile or Wi-Fi TCP/HTTP/MQTT) you want to align with from day one?

@electronicsdone

Best PCB Assembly & IoT Prototype Partner ⭐⭐⭐⭐⭐ Hi Ykaragol55, Thanks for sharing the scope clearly. I’ve supported prototype-to-small-batch builds where fully functional IoT devices required both electronic circuit design and embedded code development. Your project looks very doable: the goal is simple—deliver a working, production-ready IoT prototype with reliable wireless communication, low-power operation, and clean integration of sensors and microcontroller logic. ✅ How I’ll Help You Succeed 1. Review your concept block diagram, BOM, and user scenarios to confirm requirements before starting schematic capture or PCB layout. 2. Design a robust, production-ready PCB, including the RF section, microcontroller, sensor interfaces, and power management. 3. Provide a brief test plan to validate wireless connectivity, power-on behavior, and basic sensor functionality. ✅ I’ve delivered multiple IoT prototypes that required careful circuit design and documentation for seamless hand-off or in-house iteration. ✅ Before I start, one quick thing: Do you have a preferred wireless module (Wi-Fi, BLE, or dual-mode), and how many units are expected in the first prototype run? If you share that, feel free to message me and we can align quickly. Best, Prat PCB Must Innovations

@Specgi

As a seasoned electrical engineer and proficient programmer, I am confident that I possess all the necessary skills to take your IoT firmware and circuit design project from conception to reality. I have substantial experience in designing embedded systems and can comfortably navigate discussions around microcontrollers, low-power design, and kablosuz iletişim. Notably, I have previously excelled at selecting the right wireless modules, properly designing RF sections, and constructing rock-solid kablosuz iletişim systems for battery-powered IoT devices. I’m equally adept at handling the coding aspects of your project efficiently. My extensive knowledge in Python and other programming languages, combined with my skill-set in Schematic & PCB files (Altium, KiCad or Eagle), will undoubtedly grant you a thoroughly documented and meticulously mapped-out codebase. This means less future troubleshooting time or wasted resources with uncompromised production-ready firmware for your prototype.

@yaroslavmark

✅ Okay, I got what you want exactly. I am a Senior Embedded Systems & IoT Hardware Engineer with over 10 years of experience, providing end-to-end solutions across schematic design, low-power PCB layout, RF integration, and production-grade embedded firmware. In my opinion, the key to this project is designing the hardware and firmware together from day one, so power, RF performance, and software architecture all reinforce each other instead of fighting later. I would focus on a clean, testable design that scales from prototype to small production without redesign. This project is very similar to my previous works. I’ve designed battery-powered IoT nodes using STM32 and ESP32-class MCUs, implemented BLE and Wi-Fi stacks, tuned RF matching networks with VNA validation, and delivered 4-layer PCBs optimized for low noise and sleep currents under 10 µA. I’ve also written modular firmware with bootloaders, OTA support, and clear pin abstractions so in-house teams could iterate safely after handoff. ✅ So, I will divide your project like following: ⚡ Requirements review, component selection, and wireless architecture ⚡ Schematic design, RF section, and power optimization ⚡ PCB layout, DFM checks, and fabrication readiness ⚡ Firmware development, documentation, and validation testing Via private chatting or meeting, I will provide creative ideas and solid technical solutions for your project, and I’d like to discuss the budget and timeline in detail. Best regards, Yaroslav