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We are looking for an experienced electronics engineer to review the EasyEDA schematic of our custom Noise Sensor. The work includes validating component selection, power architecture, protections, and signal-integrity considerations, as well as identifying issues or missing elements and proposing improvements before PCB routing. Professionals with experience in embedded systems, IoT sensors, LTE/4G modules, power-supply design, and EasyEDA are preferred. This project may lead to future collaborations on similar hardware developments. Please include your portfolio or relevant past work.
Mã dự án: 40518782
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Hoạt động 26 ngày trước
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47 freelancer chào giá trung bình $445 USD cho công việc này

As a seasoned electronics engineer experienced in reviewing schematics, I am your go-to partner for this project. Having worked extensively with EasyEDA and similar design software, I am well-versed in validating component selections, power architectures, signal-integrity considerations and more - all the aspects that your custom Noise Sensor schematic entails. Throughout my career, I have developed a deep understanding of embedded systems and IoT sensor technologies, which makes me uniquely equipped to handle this specific project. Furthermore, my knowledge in power-supply designs and LTE/4G modules aligns perfectly with your hardware needs. I believe collaborating on this project would not just be limited to completing the requirements at hand but also helping you build a roadmap for future hardware developments. My end-to-end approach, starting from designing robust PCBs to ensuring optimized firmware that aligns with your unique requirements will guarantee a truly effective solution for your Noise Sensor. If you choose me, you are choosing expertise, efficiency, and dedication - all crucial when it comes to guaranteeing the high-level performance and reliability that your project requires. I look forward to transforming this EasyEDA schematic into an impeccable design ready for PCB routing.
$500 USD trong 7 ngày
7,3
7,3

Hi, I can help review and validate your Noise Sensor schematic before PCB layout to ensure a reliable and manufacturable design. My review will cover component selection, power architecture, protection circuits, signal integrity, grounding strategy, decoupling, EMI/EMC considerations, and overall design robustness. I will identify potential issues, missing elements, and optimization opportunities, then provide clear recommendations for improvement before routing begins. I have experience working with embedded systems, IoT hardware, LTE/4G modules, sensor interfaces, battery and power-supply design, and PCB development. I am also comfortable working with EasyEDA and can provide detailed feedback directly on the schematic. Deliverables: • Comprehensive schematic review • List of issues and risks identified • Design improvement recommendations • Power and protection validation • Manufacturability and reliability feedback I can share examples of relevant hardware projects and PCB designs upon request. I am available to start immediately and would be glad to support future hardware developments as well. Looking forward to discussing your project. Best regards
$250 USD trong 7 ngày
7,2
7,2

Hi there, I’ve carefully read your project description, and I can help review your EasyEDA Noise Sensor schematic before PCB routing, including component selection, power architecture, protection circuits, LTE/4G module integration, signal integrity, and missing design elements. I’m Samuel Tshibangu, a mechatronics engineer with strong experience in embedded systems, IoT sensor hardware, ESP32/MCU-based boards, LTE/4G modules, power-supply design, PCB review, and EasyEDA/KiCad/Altium workflows. I can provide a clear schematic review report with practical corrections and improvement recommendations to make the design more reliable and production-ready. Best regards, Samuel Tshibangu
$450 USD trong 1 ngày
6,3
6,3

Hi, Hope you are well. It sounds like a great job and aligns with where I'd like to take my career. I'm eager to learn more. I have experience over the past fifteen years as a PCB Design Engineer at Global Engineering services and RWR Private Ltd. You can visit my freelancer profile page; https://www.freelancer.com/u/ahsanfreelancer7 I’ve been consistently committed to Specific goals, skills or traits the new job entails. Could we schedule some time to discuss about opportunity in more detail? I’d welcome the opportunity to learn more about the role and share how my skills and experiences would benefit you. I’m available to talk at any time. I look forward to speaking with you. Best, AHSAN ULLAH
$500 USD trong 15 ngày
6,4
6,4

Hello, I am an Electrical/Electronics Engineer with extensive experience in schematic review, embedded systems, IoT hardware, power-supply design, and PCB development using EasyEDA, KiCad, and Altium. I can perform a detailed design review of your Noise Sensor schematic before PCB routing to identify potential issues early and reduce prototype risks. My review will cover component selection, power architecture, regulator stability, LTE/4G integration, protection circuits (ESD, surge, reverse polarity, overcurrent), signal integrity, grounding strategy, noise coupling, sensor front-end design, decoupling, EMC considerations, manufacturability, and overall system reliability. I will provide a documented report with findings, recommended improvements, and design optimization suggestions. I have worked on ESP32, STM32, LTE/NB-IoT, industrial sensing, battery-powered IoT devices, and mixed-signal embedded systems, including projects requiring low-noise analog measurements and wireless connectivity. I would be happy to review the EasyEDA project files and discuss any specific design constraints before starting. This sounds like an excellent opportunity for long-term collaboration.
$500 USD trong 5 ngày
6,7
6,7

Hi there I'm an Electronic Engineer with over 9 years experience designing PCBs and programming them, you can learn more about me from my Freelancer Profile. How about a private message so we discuss the details of your Esay EDA schematic
$500 USD trong 3 ngày
6,8
6,8

Hi, Before proceeding with the PCB layout, I would like to review your EasyEDA schematic and identify any potential issues. To ensure design robustness and readiness for mass production, I will focus my review on the power architecture, component selection, LTE/4G integration, protection circuitry, signal integrity (SI), manufacturability, and overall system reliability. In particular, I will closely examine LTE power requirements, ESD/transient voltage protection, analog sensor interfaces, grounding strategies, and any missing design elements that could impact performance or certification. To facilitate a thorough review, could you please share the EasyEDA project file, LTE module part number, power supply details, and specifications for the noise sensor or microphone? Before moving to the PCB routing stage, I will provide a detailed review report outlining any identified issues, recommendations for improvement, and design guidelines. Regards.
$300 USD trong 1 ngày
5,7
5,7

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 trong 7 ngày
5,9
5,9

Hello, I am an Electrical/Electronics Engineer with more than 15 years of experience in embedded systems, PCB design, hardware validation, and STM32-based product development. I can perform a complete technical review of your EasyEDA Noise Sensor schematic before PCB routing, including: • Component selection verification and design-for-manufacturing review • Power architecture analysis (LDOs, DC/DC converters, power sequencing, efficiency, thermal considerations) • Protection circuitry review (ESD, surge, reverse polarity, over-voltage protection) • Signal integrity assessment for sensitive analog and digital signals • LTE/4G module interface review, power requirements, and layout recommendations • Sensor interface validation and noise reduction recommendations • Embedded hardware design review and reliability assessment • Identification of missing components, potential design risks, and improvement opportunities • Detailed review report with recommended modifications and explanations My background includes industrial control systems, IoT devices, STM32 firmware development, motor-control electronics, communication interfaces (RS485, CAN, Ethernet, LTE), and multilayer PCB design. I have extensive experience reviewing schematics prior to layout to prevent costly PCB revisions and ensure reliable first-pass prototypes. I look forward to discussing your project. Best regards, Hamza Electrical & Embedded Systems Engineer STM32 Firmware | PCB Design | Hardware Validation
$250 USD trong 5 ngày
5,4
5,4

HI, KINDLY READ THROUGH MY PROPOSAL I will thoroughly review your EasyEDA schematic for the custom Noise Sensor, validate all critical aspects, and provide a detailed report with fixes and improvements before you proceed to PCB routing. MY APPROACH ✅ Component selection & alternatives review ✅ Power architecture, consumption, and battery/regulation optimization ✅ Protections (ESD, surge, reverse polarity, overcurrent) ✅ Signal integrity, noise immunity, and analog front-end validation ✅ LTE/4G module integration and overall design robustness RELEVANT PROJECTS Multiple IoT sensor projects (noise, environmental, industrial) involving EasyEDA, 4G modules, low-power design, and full schematic-to-PCB reviews for reliable field performance. DELIVERABLES • Detailed review report with marked issues, risk areas, and recommended changes • Updated schematic markup (if needed) with component suggestions • Power budget and signal integrity recommendations QUESTIONS 1. Can you share the current EasyEDA schematic file? 2. What is the target power source (battery type, voltage range)? 3. Any specific LTE/4G module you are using? Ready to start immediately. I'll make your Noise Sensor design solid and production-ready.
$250 USD trong 4 ngày
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
$500 USD trong 7 ngày
5,5
5,5

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.
$750 USD trong 7 ngày
5,4
5,4

Hi, I am a Senior Embedded Hardware Engineer with 10+ years of experience in mixed-signal PCB design, power electronics, and IoT hardware development. I have delivered 25+ custom multilayer PCB projects, reviewed and released 40+ production-ready designs, and improved EMC/noise performance by up to 8 dB through schematic-level optimization and protection architecture refinement. Approach: ✅ I will perform a systematic schematic review covering power architecture, regulator selection, grounding strategy, decoupling networks, and power-path robustness. ✅ I will validate component selection, interface compatibility, LTE/4G integration requirements, protection circuits, and manufacturer recommendations against the intended operating conditions. ✅ I will analyze signal integrity, analog front-end routing considerations, noise coupling risks, clock/reset circuits, and EMC/ESD protection before PCB layout begins. ✅ I will deliver a detailed review report with identified issues, risk assessment, and prioritized design improvements for reliable production readiness. Questions: ✅ What LTE/4G module, microphone/noise-sensing IC, and primary MCU are currently used in the design? ✅ Are there specific power-source requirements (battery, solar, external DC input, or PoE) that the schematic must support? ✅ What are the target operating environment and compliance goals (EMC, ESD, industrial, outdoor, or low-power requirements)? Best, Yaroslav
$500 USD trong 7 ngày
5,3
5,3

⭐⭐⭐⭐⭐ I can review your EasyEDA Noise Sensor schematic before you move into PCB routing and help you catch the issues that typically only show up after hardware testing. My focus will be on making sure the design is electrically solid, low-noise, and production-safe. I will check: • Power architecture (LDO/buck choice, decoupling, sequencing, transient protection) • Analog signal chain (sensor biasing, filtering, ADC protection, grounding, noise coupling paths) • Digital section (MCU selection, clock stability, I2C/SPI integrity, pull-ups, signal routing risks) • Any LTE/4G module integration (peak current spikes, SIM interface protection, antenna layout, RF isolation) • EMI/EMC and layout-risk areas before you lock the PCB Deliverables: • Annotated schematic review (EasyEDA-compatible feedback) • Clear list of critical issues + recommended fixes • Power/noise improvement suggestions • Component corrections if needed • Pre-layout checklist for routing guidance My goal is to make sure your first PCB spin is actually usable, not a debugging revision. A few quick questions: • What type of noise are you measuring (audio, vibration, industrial, RF)? • Is LTE/4G transmission continuous or periodic? • Battery-powered or mains? Once I see the schematic, I’ll give you a clear “risk map” so you know exactly what to fix before routing.
$500 USD trong 7 ngày
5,0
5,0

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
$450 USD trong 7 ngày
5,2
5,2

Building intelligent hardware systems forms the heart of our business, and this project aligns perfectly with what we do best. As an AI-centric company, we not only design and build IoT hardware but also couple it with agentic AI for end-to-end functionality. Our experience in implementing Odoo ERP and delivering across web and mobile stacks allows us to infuse AI even in workflows that involve reading live sensor data so that they can dynamically adapt to subtle changes, improve efficiency, and prevent potential errors. In terms of electronics engineering, our proficiency in designing PCBs, developing firmware especially for ESP32/STM32 chips, MQTT-connected sensor networks enables us to look into your EasyEDA schematic for the custom Noise Sensor thoroughly. Having focused on LTE/4G modules and power-supply design as well as Power Architecture for previous IoT infrastructures further bolsters our capability to evaluate your noise sensor design from all relevant perspectives. Lastly, collaborating with you on this project would be highly beneficial for both of us. Not only will you receive a comprehensive review of your schematic with detailed suggestions for improvements but our partnership can extend farther given your future hardware developments. Choose us if you want to take a cohesive approach for the success of this project and forge a long-lasting professional association.
$500 USD trong 7 ngày
4,5
4,5

Hello, I am interested in assisting with your EasyEDA schematic review project. With experience in electronic circuit design, schematic verification, and PCB development, I can thoroughly review your design to identify potential issues before moving to the manufacturing stage. My focus is on ensuring circuit functionality, component compatibility, signal integrity, and adherence to industry best practices. For this project, I will carefully analyze the EasyEDA schematic, verify component selections and connections, check power distribution and grounding schemes, review design rules, and identify any inconsistencies or potential reliability concerns. I can provide detailed feedback and recommendations for improvements, helping reduce design risks, avoid costly revisions, and improve overall circuit performance. I am committed to delivering a comprehensive review with clear documentation and actionable suggestions. Whether your design is a prototype or a production-ready product, I will work diligently to ensure accuracy, quality, and efficiency throughout the review process. I look forward to discussing your project requirements and contributing to a successful outcome.
$250 USD trong 7 ngày
4,1
4,1

Hi, The biggest risk in this project is not reviewing the schematic itself—it is ensuring that power integrity, RF coexistence, and signal reliability are properly addressed before PCB routing, as issues missed at this stage can lead to costly redesigns and unstable field performance. I have 30 years of experience in embedded hardware design, IoT systems, power-supply architecture, LTE/4G integration, sensor interfaces, and PCB design review for manufacturable and reliable products. For this project, I would focus on: 1. Validating component selection, power architecture, and protection circuits to ensure robust operation under real-world conditions. 2. Reviewing signal integrity, grounding, and layout considerations to minimize noise and improve system reliability. ✅Relevant experience includes: 1. IoT sensor platforms integrating MCUs, LTE/4G modules, and environmental sensors. 2. Schematic and PCB reviews covering power integrity, ESD protection, and RF design. 3. Embedded systems using ESP32, STM32, and low-power wireless architectures. A couple of questions: 1. Which LTE/4G module and MCU are currently used in the design? 2. Are there any specific constraints on power consumption, PCB size, or certification requirements? If you message me, I can outline a detailed schematic review process covering power integrity, protections, RF considerations, and design-for-manufacturing checks. Best regards, Prat PCB Must Innovations
$500 USD trong 4 ngày
6,4
6,4

Hi, You can review my portfolio for similar projects , I have experience with embedded systems, IoT hardware, LTE/4G modules, power-supply design, and EasyEDA-based development. I can perform a detailed schematic review, validate component selection, power architecture, protection circuits, and signal-integrity considerations, then provide clear recommendations and identify any potential design risks before PCB layout begins. Best regards, Ahmed
$500 USD trong 7 ngày
4,0
4,0

Hi, As an experienced electronics engineer, I believe my skills and knowledge perfectly align with the requirements of your Noise Sensor project. While my portfolio may not directly reflect my work in EasyEDA, it demonstrates my proficiency in relevant areas such as PCB design and layout. In particular, I specialize in embedded systems and IoT sensors, which are central to your project. My understanding of power architecture and signal integrity will ensure accurate validation of component selection, while attention to detail will help identify and rectify any potential design issues before PCB routing. Best regards, Sakshi masih
$252 USD trong 1 ngày
4,0
4,0

Salvador, Brazil
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