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**Title:** IoT Hardware Engineer / PCB Designer Needed for Smart Water Tank Level Monitoring Device **Description:** We are looking for an experienced **IoT hardware engineer / PCB designer** to help us design a **smart water tank level monitoring device** for residential, building, and remote-site use. The product will measure the water level inside a tank and send alerts when the level becomes **low**, **high/full**, or when there is a **sensor/device issue**. We are seeking a professional who can take this from **system architecture and component selection** to **schematic, PCB layout, and manufacturing-ready files**. **Preferred product direction:** * Non-contact level sensing (preferably **ultrasonic**, top-mounted) * **Wi-Fi version** for homes/buildings * Optional **NB-IoT / LTE-M / Cat-M version** for farms or remote tanks * Outdoor-capable enclosure design consideration * Reliable, low-maintenance, and cost-effective design **Scope of work:** * Review requirements and recommend final sensing + connectivity architecture * Prepare hardware block diagram * Select components and optimize BOM for cost/performance * Design full schematic * Design PCB layout * Prepare manufacturing package (Gerbers, BOM, assembly files, source files) * Add production/debug test points * Provide engineering notes for prototype manufacturing **Nice to have:** * Experience with water level / tank monitoring devices * Experience with outdoor IoT products * Low-power design experience * Firmware bring-up support for hardware validation * 3D/mechanical integration support **Deliverables:** * Final block diagram * Component selection / BOM * Full schematic * PCB layout * Gerber files * Assembly/manufacturing files * Test point map * Final source design files * Documentation in English **To apply, please send:** * Brief summary of your relevant experience * Examples of similar IoT / sensor / outdoor hardware projects * Your preferred CAD tool (Altium, KiCad, Eagle, etc.) * Your availability * Estimated timeline * Your proposed cost and milestones **Important:** We prefer someone who understands not only PCB design, but also **real-world reliability, manufacturability, and field deployment considerations**. Please make sure your proposal clearly explains: 1. Your recommended sensing approach 2. Your recommended communication architecture 3. Similar products you have designed 4. What is included vs excluded in your scope
Project ID: 40364028
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51 freelancers are bidding on average $674 USD for this job

Having tackled diverse IoT product development projects, I am well-equipped and experienced to bring your smart water tank level monitoring device from concept to fruition. My extensive knowledge in PCB design and embedded firmware is paired with an understanding of real-world reliability, field deployment, and manufacturability concerns. I believe this balance is crucial to concocting a reliable, low-maintenance, and cost-effective solution which aligns with your project ambitiously. To address your preferences, I recommend an ultrasonic top-mounted non-contact sensing for accurate measurements and will incorporate Wi-Fi connectivity for homes/buildings convenience. Moreover, I plan to offer an optional NB-IoT / LTE-M / Cat-M version tailored for farms or remote tanks ensuring functional adaptability in every context. Not only will I deliver a full schematic and PCB layout meeting your expectations, but also provide manufacturing-ready files including Gerbers, BOM, assembly files, source files accounting for every necessary detail.
$250 USD in 1 day
7.9
7.9

With an extensive background in Electrical Engineering and Electronics, I bring a nuanced understanding of the power and signal requirements needed for your water tank monitoring device. I have designed numerous electronic systems, including power electronics solutions like battery chargers and solar inverters, which will be integral to optimizing the performance of your smart device while keeping costs low. My experience with analog design and noiseless OpAmp circuits will ensure precise sensor measurements and solid results. Given my profile, it's important to emphasize that I have exceptional PCB design skills using Altium Designer. I undeniably recognize the relevance of not just focusing on PCB layouts but considering real-world factors such as reliability, manufacturability and field deployment concerns in order to arrive at a well-thought-out design. In fact, one notable project that matches your requirement is an RF based water level monitoring system integrated with wireless sensors. This involved designing both large scale indoor tank system as well as smaller ones used in remote farms.
$450 USD in 15 days
7.4
7.4

Hello, I understand you need a smart water tank level monitoring device that reliably measures water levels using non-contact sensing, preferably ultrasonic. I will design the system architecture, select cost-effective components, and create detailed schematics and PCB layouts ready for manufacturing. The device will support Wi-Fi for homes/buildings and optionally NB-IoT or LTE-M for remote sites. I'll ensure the design is robust for outdoor use with low maintenance and includes debug points and production notes. I focus on making hardware that's reliable and easy to manufacture, backing my design with documentation and options for firmware support and mechanical integration. To better serve you, could you please clarify: What is your preferred communication method priorities: Wi-Fi first or cellular as primary? Do you have specific size or enclosure constraints for the device? Are there any power source preferences, such as battery-operated or mains power? What environmental conditions must the device withstand (temperature, humidity, exposure)? Do you want me to assist with firmware bring-up or just hardware design? Which communication method do you consider primary: Wi-Fi or NB-IoT/LTE-M for your device? Thanks,
$750 USD in 11 days
6.6
6.6

Hello, Your requirement is a reliable IoT-based water tank monitoring device with accurate sensing and robust connectivity. I recommend a top-mounted ultrasonic sensor for non-contact measurement, avoiding corrosion and maintenance issues. For communication, I propose Wi-Fi (ESP32 series) for residential use and optional NB-IoT/LTE-M module for remote sites. The system will include fault detection for sensor errors, dry tank, and overflow conditions. I will design a complete hardware architecture with optimized BOM for cost, availability, and long-term production. PCB will be compact, noise-optimized, and suitable for outdoor deployment with proper protection considerations. All manufacturing files, test points, and documentation will be delivered production-ready. I have 12+ years experience in IoT, embedded systems, and industrial-grade PCB design. I have worked on sensor-based and low-power outdoor electronics with real-world deployment constraints. Timeline: 2–3 weeks for full design package, with support for prototype validation. Regards, Engineer Muhammad Usman
$500 USD in 7 days
6.8
6.8

As a highly skilled and experienced IoT hardware engineer, PCB designer, I am confident that I am the ideal partner for your smart water tank level monitoring project. Throughout my 8+ years of professional experience, I have developed a deep understanding of designing high-quality circuit boards and optimizing BOMs for cost-effective solutions - two qualities that are paramount to your project's success. My expertise extends beyond just PCB design. I have a solid background in engineering that encompasses low-power design, outdoor IoT products, and firmware validation - all of which will be valuable for this project. Moreover, my extensive experience with CAD tools like Eagle, Altium, KiCAD, and EasyEDA, including Fusion 360 for mechanical integration, aligns perfectly with your preferred tools. Beyond mere design, I understand the critical importance of real-world reliability, manufacturability, and field deployment considerations in any project. My careful selection of components and the provision of production/debug test points invariably lead to higher product quality and easier manufacturing. My reliable deliverables-centric approach will ensure you receive the final block diagram, full schematicand a comprehensive mapping of test points among others on time and within budget. Let's combine your ideas with my proficiency to make this smart water tank level monitoring device a remarkable reality.
$500 USD in 7 days
6.7
6.7

Having worked as an electronic hardware and firmware engineer for several years, I've had the privilege of designing and developing a range of complex IoT devices, making me an ideal candidate for this project. My specialty in PCB design is not only focused on delivering robust and reliable hardware configurations but also on ensuring real-world reliability, manufacturability, and successful field deployments. I believe this understanding would be an asset to your Smart Water Tank level monitoring device. Pertaining to your specific needs, I have a deep understanding of non-contact level sensing technologies like ultrasonics-- which aligns with your preference and could be greatly beneficial in designing the water tank monitoring device. In terms of similar products designed, I have previously developed an IoT device for monitoring fluid levels in tanks that could be directly applicable to this project. It successfully employed outdoor-capable enclosure design considerations similar to what you require here. My portfolio also includes other relevant projects emphasizing low-power design experience and 3D/mechanical integrations skills. I predominantly use Altium based
$500 USD in 7 days
6.7
6.7

Hi, I can help you take this from concept to a production-ready IoT device. I have experience in ESP32-based designs, low-power IoT, sensor integration, and industrial/outdoor PCB design, with focus on reliability and manufacturability. My approach: • Sensing: Ultrasonic top-mounted (industrial-grade, IP-rated), with filtering for stable readings • Connectivity: – Wi-Fi (ESP32) for residential – Optional LTE-M/NB-IoT module for remote deployment • Power: Low-power design with deep sleep + efficient regulation • Reliability: ESD protection, filtering, proper grounding, and sealed enclosure considerations Scope I cover: • Architecture + block diagram • Component selection (cost-optimized, in-stock) • Full schematic + PCB layout (Altium/KiCad/EasyEDA) • Gerbers, BOM, pick & place • Test points + bring-up notes Timeline: ~5–7 days for first full version Tools: KiCad / Altium (your choice) I focus on designs that actually work in the field, not just on paper. Ready to start immediately. Best regards, Samuel
$500 USD in 1 day
6.3
6.3

Hi there, I will design a cost-optimized, low-power PCB for your ultrasonic smart water tank monitor with robust Wi-Fi and NB-IoT connectivity options. --Why me?-- Expertise: I specialize in rugged, low-power IoT hardware design using ultrasonic sensors and dual Wi-Fi and cellular architectures in KiCad.I can also write firmware for embedded devices after getting it manufactured and make cad model and print 3D enclosure and send it to you ready to deploy product. Availability & Support: I align with your timezone, respond in under 5 minutes, and provide 2 weeks of free post-project support to ensure seamless integration. Documentation: You will receive complete manufacturing files, an optimized LCSC BoM, and clean source code ready for immediate production. --How I will handle your task-- Milestone 1: Architecture, component selection, and schematic capture Milestone 2: PCB layout and mechanical enclosure integration Milestone 3: Manufacturing file generation and DFM validation --Field-tested deployments-- Remote Agricultural Tank Monitor — Designed an IP67-rated ultrasonic level sensor PCB with NB-IoT and multi-year battery life. Smart Home Water Meter — Engineered an ESP32-based Wi-Fi water monitoring node with instant high and low level alerts. Scope: Included are schematics, KiCad PCB layout, optimized BOM, Gerbers, and test point maps. Excluded is custom mechanical enclosure 3D modeling, though 3D PCBA models will be provided. Regards, Majeed
$500 USD in 4 days
6.5
6.5

As an Electrical Engineer with a robust skill set in IoT and PCB design, I believe my background makes me the perfect fit for your smart water tank level monitoring project. I have experience designing and integrating sensing devices for real-world applications, including outdoor IoT products like what you're seeking. My proficiency in Eagle CAD combined with my proven track record of delivering efficient and cost-effective designs further strengthens my suitability. When considering design choices, I ensure that they align not only with your project requirements but also emphasize reliability, manufacturability, and field deployment considerations. For instance, I recommend using non-contact ultrasonic level sensing as it's robust and well-suited for top-mounted placements consistent with your preferred direction. Additionally, to maximize connectivity options, I suggest a Wi-Fi version for building use, while including an optional NB-IoT/LTE-M/Cat-M version for remote tanks.
$266 USD in 1 day
5.9
5.9

Hi, This aligns well with my experience. I have 6+ years in embedded systems, IoT hardware, and PCB design, including sensor-based systems, outdoor-capable devices, and low-power designs. Recommended approach: • Sensing: Ultrasonic (top-mounted) with proper filtering + fallback fault detection (timeout/echo validation). For harsher environments, I’d consider a sealed pressure-based option as backup. • Connectivity: • Wi-Fi (ESP32) for residential/buildings • Optional LTE-M/NB-IoT (Quectel/SIMCom modules) for remote sites • Focus on low-power modes, surge/ESD protection, and environmental robustness. Relevant work: • ESP32-based IoT control boards • Sensor-heavy embedded systems (analog + digital integration) • Battery/power electronics and field-deployed hardware • Full PCB + firmware bring-up and manufacturing handoff Scope includes: • System architecture + block diagram • Component selection + cost-optimized BOM • Full schematic + PCB layout • Manufacturing files (Gerbers, centroid, assembly notes) • Test points + bring-up notes Tool: KiCad (fully editable files) Milestones: 1. Architecture & component selection 2. Schematic design 3. PCB layout + review 4. Final manufacturing package I design with real-world deployment in mind: reliability, manufacturability, and long-term operation. Best regards, Jesutofunmi
$5,000 USD in 35 days
5.8
5.8

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 7 days
5.8
5.8

As an accomplished IoT hardware engineer and PCB designer, with a particular focus on **sensing and connectivity architecture**, **component selection**, and **BOM optimization**, I believe my skillset aligns perfectly with your needs. I have previous experience designing similar water level monitoring devices and outdoor IoT products which enhances my understanding of real-world reliability, manufacturability, and field deployment considerations - making me the ideal fit for your project. In terms of **verification/validation**, I'm well-versed in adding production/debug test points for enhanced prototype manufacturing. Moreover, I can offer firmware bring-up support to ensure your hardware design is flawlessly validated. In relation to capabilities beyond pure hardware, I want to highlight my familiarity with the use of **3D modeling tools** such as Cinema 4D, Rhinoceros, SketchUp and SolidWorks. This enables me to not only understand the design but transform it into clear, precise visual outputs that effectively communicate your vision. By leveraging my proficiency in rendering engines such as Octane and V-Ray, we can generate photorealistic product renders for compelling marketing materials. Combining this vision with technical precision allows us to tailor each outcome specifically to your brand's messaging.
$250 USD in 7 days
5.9
5.9

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 in 7 days
6.1
6.1

Hi I am a hardware and firmware developer specializing in embedded device development, I have developed a IoT water level sensor utilizing and ESP32 and a ultrasonic sensor within ESP IDF, the system managed 3 tanks reporting alarms and periodic tank levels to a Node Red dashboard, I am also able to implement this using LTE CAT1 or CATM1/NB-IoT devices such as SIM7670 or Quectel MC60, feel free to message me to discuss your project in more detail
$400 USD in 11 days
5.1
5.1

السلام عليكم ورحمه الله وبركاته Hi, I can help you design a reliable, production-ready smart water tank level monitoring device from architecture to manufacturing files. I have solid experience in IoT hardware and PCB design, especially ESP32-based systems, sensor integration, and low-power designs. My previous projects are very similar in structure (MCU + sensors + wireless + power), so I can deliver a robust and practical solution. Recommended approach: • Sensing: Top-mounted ultrasonic (non-contact, low maintenance) • Communication: ESP32 (Wi-Fi) + optional NB-IoT/LTE-M version (modular design) What I’ll deliver: • Block diagram + architecture • Optimized BOM (cost & availability) • Full schematic + PCB layout (EMI & DFM aware) • Manufacturing files (Gerber, PnP, drill, source) • Test points + engineering notes Tools: KiCad / Altium/EasyEDS Timeline: ~7–10 days for first prototype-ready design
$500 USD in 7 days
5.3
5.3

Hi, find my TOP NOTCH similar work on the Outdoor IoT Sensor Project. The project included ultrasonic sensing and wireless communication PCBs. Before moving forward, please confirm: Do you prefer the ultrasonic sensor module to be fully integrated on the PCB or use a proven off the shelf transducer for cost efficiency? Tools I Use • KiCad / Altium Designer I am ready to deliver a production ready smart water tank level monitoring PCB that balances sensing accuracy, connectivity options, and outdoor reliability. The focus will be on manufacturability and compliance. The documentation will be aligned with IPC and IEC standards. Best regards, Abubakar Muhammad
$692 USD in 7 days
5.1
5.1

As a versatile and experienced electrical engineer specializing in IoT products, I am confident in my ability to design your smart water tank level monitoring device. Having previously designed similar hardware, I truly understand the complexities and real-world considerations behind creating robust and field-deployable IoT devices. This includes expertise in selecting optimal sensing methodologies, such as ultrasonic technology, suitable for your project's requirements. Facilitating seamless connectivity is another area where I excel. By leveraging my knowledge of Wi-Fi and various wireless technologies like NB-IoT / LTE-M / Cat-M, I can ensure that your device not only caters to residential buildings' needs but also to more remote locations like farms. Furthermore, my proficiency extends beyond PCB and schematic designs to offer insights into mechanical integration and firmware bring-up for holistic hardware development. In addition to these technical skills, I recognize the significance of factors like reliability and cost-effectiveness in practical IoT design. Throughout the process, my goal will be to deliver a product that is both low-maintenance and budget-friendly without compromising on quality or performance. My well-rounded background that combines AI, enterprise ERP systems, and hardware development is an asset that enables me to think innovatively while delivering pragmatic results.
$500 USD in 7 days
4.3
4.3

Best IoT Hardware Design Expert for Smart Water Tank Monitoring! ⭐⭐⭐⭐⭐ Dear Client, This project is not just about measuring tank level. The real challenge is building a device that is reliable outdoors, low-maintenance in the field, practical to manufacture, and accurate enough that low/high/device-fault alerts can be trusted in real deployment. That is where I can help. From your scope, what matters most is not only schematic and PCB work, but choosing the right sensing and connectivity architecture first. A tank monitor can fail long before PCB quality becomes the issue if the sensing method, enclosure assumptions, power approach, and serviceability are not thought through together. I would approach this as a field-reliability-first IoT product task: define the best sensing path, choose the right connectivity split for Wi-Fi and remote variants, optimize the BOM, and prepare a board with proper test points and manufacturing notes so the prototype stage is meaningful and scalable. A few important questions: 1. Is V1 definitely ultrasonic/top-mounted, or are you still open to another non-contact sensing method if it improves reliability? 2. Do you want one common hardware platform for both Wi-Fi and NB-IoT/LTE-M variants, or separate optimized versions? If you message me, I can also outline the most practical system architecture so the first revision is not just functional, but deployment-aware from the beginning. Best regards, Prat PCB Must Innovations
$500 USD in 7 days
6.4
6.4

Hello, I am excited to submit my proposal for your project requiring expertise in electronics, electrical engineering, PCB layout, product design, and signal processing. With a strong background in designing and developing electronic systems, I specialize in transforming concepts into fully functional, reliable, and manufacturable products. ? Technical Expertise ? Electronic Circuit Design (Analog & Digital) ? PCB Layout & Schematic Design (Multi-layer boards) ⚙️ Product Design & Prototyping ? Signal Processing & Filtering Techniques ? Power Supply & Voltage Regulation Design ? Testing, Debugging & Optimization ? Tools: Altium Designer, KiCad, Proteus, MATLAB ? What I Can Deliver For your project, I can provide: Complete schematic and PCB design Component selection and BOM creation Signal integrity and noise reduction optimization Firmware-ready hardware design (if required) Prototype support and testing guidance Design for Manufacturing (DFM) and assembly support ? Why Choose Me Detail-oriented and precision-focused design approach Experience with real-world product development Strong problem-solving and debugging skills Clear communication and regular progress updates Commitment to quality and timely delivery ⏱️ Availability I am available for both short-term and long-term projects, and I can adapt to your project timeline and requirements.
$250 USD in 4 days
3.5
3.5

Having worked in graphics and web design for the past few years, I'm excited to start expanding into new domains, and your project offers an intriguing way for me to do just that. Prior to my freelancing career, I was an Electrical Engineering student with a deep interest in signal processing and hardware design. Much of my work focused on developing PCBs using Ki Cad, Gerber file, BOM, Altium, Eagle, and Or CAD- exactly what you're looking for. Moreover, while water level monitoring is a new ground for me, I've always loved getting involved in "outdoor products", something that your project entails as well. My introduction with water bodies came from revit lumion rendering for architectural projects that required structural designing and also manipulating 2d & 3D drawings. Best Regards Sumit
$256 USD in 2 days
3.7
3.7

بيشة - عسير, Saudi Arabia
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