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Project Title: ESP32 Car Security PCB with Relay Description: We need a custom PCB that integrates an ESP32 microcontroller with a 12V automotive relay for a car anti-theft/security system. The ESP32 should detect an authorized Bluetooth beacon (iBeacon / BLE tag). When the beacon is nearby, the ESP32 will automatically activate the relay to enable the ignition system. Requirements: ESP32 module with USB-C or Micro-USB port for programming. Automotive-grade 12V relay (ignition cutoff). 12V to 5V/3.3V DC-DC regulator for stable ESP32 power. Reverse polarity and transient protection (TVS, fuse). Status LEDs (power, relay, BLE). Optional push button (override/reset). Connector terminals: VIN (12V), GND, Relay output. Deliverables: Schematic + PCB layout (Altium / KiCad / Eagle). Gerber files for manufacturing. BOM with suppliers. Prototype testing instructions. (Optional) Basic firmware for relay control via BLE. Application Scenario: Used in cars (12V system, temperature -20°C to +70°C). Relay controls ignition/start circuit. Beacon acts as wireless key.
Project ID: 39717279
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80 freelancers are bidding on average $533 USD for this job

Hello, As an expert in Automotive, Electrical, and Embedded System Engineering, I possess the relevant skills and substantial experience to successfully undertake and execute your ESP32 Car Security PCB project. I have a strong grasp of automotive-grade layout standards, coupled with my adeptness in working with microcontrollers like the ESP32 and relays, which would prove invaluable in this project. Moreover, my proficiency in using Altium, KiCad, and Eagle for schematic capture and PCB design would enable me to deliver a highly accurate and functional design that integrates all your specified requirements such as Bluetooth compatibility, reverse polarity protection's just to mention a few. I prioritize quality and any design from me will not only meet but exceed your expectations. To ensure I cater to the unique needs of your car anti-theft system, I diligently consider environmental factors such as temperature variations (as required) during my design process. Additionally, my keen eye for detail ensures I thoroughly test my designs hence guaranteeing a reliable end product. My vast array of engineering and developmental skills will be invaluable when crafting prototype testing instructions and the optional basic firmware for relay control via BLE. Let’s collaborate on this project to give your car anti-theft/security system the reliability and effectiveness it deserves. Reach out today! Thanks!
$750 USD in 2 days
8.2
8.2

As a passionate electrical engineer with a Master's in Embedded Systems, I am excited to offer my skills for your ESP32-based car anti-theft PCB design project. My extensive proficiency in using microcontrollers like the ESP32, for instance, puts me in an excellent position to develop the very firmware you potentially need alongside the rest of the project demands. Furthermore, having worked with FPGAs using Verilog and VHDL – which also feature heavily in this project - I’m quite confident in my capability to maximize performance. My experience extends from artificial intelligence (AI) and machine learning (ML) to digital system designs through robust programming-crafting algorithms for complex computations. This broad suite of skills, I believe, gives me the rare ability to see projects holistically-to tackle a task fully cognizant of factors beyond the mere electronic hardware. This is especially relevant when designing systems that could impact something as critical as vehicle security. Additionally, having hands-on experience with PCB design using platforms like Eagle, Target and KiCAD enables me to deftly navigate challenges within that area. I am offer-ready to provide all essential deliverables on time and as per your exact specifications; including providing a detailed BOM with suppliers and compiling comprehensive prototype testing instructions.
$750 USD in 7 days
8.0
8.0

Hello, I have around 20 years of professional experience in PCB industry and extensive knowledge in Circuit/Schematic design, PCB design by using various PCB design software's such as Altium designer, OrCad/Allegro, EasyEDA, KiCad etc., I am confident that my skillset – including proficiency in Circuit/Schematic design, PCB design software, strong knowledge of PCB design, Signal Integrity and Power Integrity analysis, electrical engineering and electronic components - make me the perfect person for this job.
$750 USD in 15 days
6.9
6.9

As an Electrical Engineer with a strong background in embedded systems and PCB design, I feel uniquely qualified for your project. My experience includes designing custom PCBs that integrate microcontrollers and relays, precisely the kind of skill-set necessitated here. Additionally, I have worked extensively with the ESP32 module, utilizing both Micro-USB and USB-C for programming. The demands of this project align well with what I've done before, my proficiency in power electronics and the ability to work with a 12V automotive relay. I understand the importance of temperature sensitivity (-20°C to +70°C) crucial for car-based system workings like ignition control. I am also well-versed in incorporating reverse polarity protection and transient protection (TVS, fuse), ensuring the safety of the overall system. To prove my suitability further, I am familiar with this versatile range of sensors including iBeacon / BLE tags as a wireless key . Lastly, I am proficient in tools such as Altium / KiCad/ Eagle which are vital for schematic generation and PCB layout.
$250 USD in 7 days
7.2
7.2

As an electrical engineering expert with a specialization in PCB design and development, I believe I'm the best fit for your project. My proficiency in power supply circuits, multilayer designs, and embedded systems aligns perfectly with your need for an ESP32 car security PCB. I can ensure a robust design that accommodates all the necessary integrations including an automotive-grade 12V relay, a stable ESP32 power system, reverse polarity protection, transient protection, status LEDs, and optional push button for override/reset. Moreover, my experience as a firmware developer enhances my capability to undertake this project efficiently. From programming microcontrollers like the ESP32 to implementing wireless technologies such as Bluetooth, my skills directly align with your project's requirements of having the ESP32 detect an authorized BLE beacon and control the relay accordingly. Not only can I design the PCB but I can also provide a basic firmware for relay control via BLE. Lastly, my commitment to delivering high-quality cost-effective solutions within specified deadlines makes me an ideal choice for your project. On top of every skill mentioned earlier, I have a strong foundation in RF designs which will be useful to optimize wireless key communication between the beacon and the PCB even in harsh automotive environments. Let's connect and discuss how we can collaborate successfully on this exciting anti-theft PCB project.
$500 USD in 7 days
6.3
6.3

With over 8 years of experience in PCB design and a deep knowledge of electrical engineering, I am uniquely positioned to bring your anti-theft/security project to life. As an expert in Eagle, Altium, KiCAD, and EasyEDA, I'm adept at developing high-quality circuit boards that align with your specific requirements. I understand the complexities of working with 12V systems that face temperature fluctuations from -20°C to +70°C, ensuring robustness and reliability. My proficiency in embedded systems and microcontrollers such as the ESP32 and a variety of programming languages (C/C++, Arduino) enables me to effectively implement features like Bluetooth beacon detection, relay control, and the optional push button override/reset you mentioned. Additionally, my ability to design CAD housings for PCBs would serve well if that's something you require. Lastly, as a top 3% ranked Preferred Freelancer,i've consistently delivered quality solutions on time and within budget. I take immense pride in my work, whether it is designing PCBs or providing technical writing services. It would be a pleasure to contribute my skills towards making your idea a reality. Let's discuss how we can create a solution that exceeds your expectations. Reach out to me anytime – I'm available 24/7!
$500 USD in 7 days
6.6
6.6

ChatGPT said: Hi there, I’ve reviewed your project requirements and I’m confident I can deliver a robust ESP32-based car security PCB tailored for automotive environments. With nearly five years of experience in PCB design using Altium, and hands-on work with ESP32 modules, DC-DC regulation, and automotive-grade protection circuits (TVS, reverse polarity, relay drivers), this project aligns perfectly with my expertise. I can provide a complete design package including schematic, PCB layout, Gerber files, BOM with supplier links, and prototype testing guidelines. If needed, I can also supply basic firmware for BLE-based relay control and beacon detection. The final design will be compact, reliable, and optimized for automotive use. Feel free to reach out — I’d be glad to discuss technical details and get started. Best regards, Samuel Tshibangu
$385 USD in 1 day
6.2
6.2

I've built several ESP32-based automotive projects and understand the challenges of 12V environments. I can design a reliable PCB for your beacon-based security system. My approach will focus on robustness. I'll use an automotive-grade DC-DC converter with wide input voltage and include TVS diodes and a fuse for protection against voltage spikes and reverse polarity. The relay will be chosen to handle the ignition circuit's current without issue. I'll deliver the complete KiCad project files, Gerbers, a full BOM with LCSC/Mouser part numbers, and clear test instructions. I can also provide the core Arduino firmware to get the ESP32 scanning for your BLE beacon and controlling the relay, which you can then customize. I'm confident I can deliver a board that works reliably in a car. Let's discuss the specific beacon you plan to use.
$500 USD in 7 days
6.6
6.6

Hello, I understand that you're looking for a custom PCB design that combines an ESP32 microcontroller with a 12V automotive relay specifically for a car anti-theft system. My approach will involve creating a detailed schematic and a well-structured PCB layout using your preferred software like Altium or KiCad. I will ensure the design meets all your requirements, including the automotive-grade components, reverse polarity protection, and the integration of status LEDs. Additionally, I'll provide thorough BOM documentation and manufacturing files to facilitate smooth production. To ensure everything meets your needs, What is the expected size and shape of the PCB you envision for this project? Thanks, Muhammad Awais
$750 USD in 13 days
6.0
6.0

Hi, how are you doing? I went through your project description and I can help you in your project. 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: Embedded C Programming. VHDL/Verilog, Quartus/Vivado, LABView/ Multisim/PSPICE/VLSI 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. We can deliver your project efficiently within timeline. If you choose me, I think you won't regret. Best Regards.
$500 USD in 7 days
6.1
6.1

Hi Ahamd J., I recently completed a similar project successfully and I can show you that as a sample. As an expert in 3D and 2D modeling, your project on a custom ESP32 Car Security PCB with a 12V relay truly excites me. Two key questions come to mind: Have you considered the physical size constraints of the PCB within the car's dashboard? How critical is the response time of the relay activation upon detecting the Bluetooth beacon? In line with my expertise, I suggest focusing on efficient power management techniques for the ESP32 to ensure optimal battery life in the car. Additionally, incorporating a failsafe mechanism for the relay to prevent accidental activation can enhance the security aspect of the system. Implementing best practices in schematic and PCB layout design, along with rigorous testing under various temperature conditions, will be pivotal for the success of this anti-theft system. My experience in creating robust electronic designs is a testament to my ability to deliver a high-quality solution tailored to your specific requirements. Let's collaborate closely to bring your vision of a smart car security system to life, blending innovative technology with reliable functionality seamlessly. Your project aligns perfectly with my expertise, and I am eager to My portfolio is uploaded here and on my website. Best Regards, Sid
$727.50 USD in 11 days
5.4
5.4

Hello — I can design your ESP32-based car security PCB with automotive-grade protections, relay control, and optional BLE firmware. I will deliver full schematic and PCB (KiCad/Altium), Gerbers, BOM with suppliers, and prototype test instructions. Design includes USB-C programming, 12V→5V/3.3V regulator, TVS + fuse, reverse-polarity protection, status LEDs, and an override button. I’ll specify an automotive-rated relay, connectors for VIN/GND/relay, and layout/stackup for -20°C to +70°C operation. Optional: I can provide a simple BLE beacon-auth firmware to toggle the relay and a safe debounce/timeout policy. Timeline and cost estimate provided after reviewing constraints (relay spec, enclosure, and MCU footprint preference). Regards, Engr Muhammad Usman — Skills: Electronics, PCB Layout, Embedded Systems, Automotive Engineering.
$500 USD in 3 days
5.7
5.7

With extensive experience in Electrical Engineering, Electronics, Microcontroller, and PCB Layout, I am well equipped to undertake your ESP32-Based Car Anti-Theft PCB Design project. Having worked on similar projects before, I am familiar with the design and implementation of anti-theft systems that require Bluetooth integration. My expertise with the ESP32 microcontroller is particularly relevant as its robustness, adaptability for IoT applications like this ensures reliable performance even in challenging temperatures from -20°C to +70°C. My previous projects have involved crafting solutions that comply with automotive grade standards. This includes integrating circuitry with automotive relays, designing reverse polarity and transient protection measures such as TVS and fuse assignment which safeguard against fluctuations and potential surges experienced in car electrical circuits. I will ensure your design has the necessary stability provided by a 12V to 5V/3.3V DC-DC regulator that powers the ESP32 microcontroller.
$500 USD in 7 days
5.2
5.2

Hi there, I’m submitting a bid for your project and would be happy to assist you. As an experienced professional, I’m confident in my ability to deliver high-quality results tailored to your requirements. Please feel free to message me so we can discuss the project scope, timeline, and budget in more detail. You can view my portfolio and client reviews here: https://www.freelancer.com/u/Feriver Please note that this is a genuine bid, and I’m available to discuss your project right away. Best regards, Asif Nawaz
$750 USD in 10 days
5.2
5.2

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!
$400 USD in 5 days
5.1
5.1

Hello, I’m Abbas Jawadwala, Co-founder and Lead Engineer at SMB ElectroTech. With 5+ years in electronics design and hardware development, I’ve supported clients globally with everything from IoT devices to multi-layer PCB layouts. My team and I focus on reliable, manufacturable solutions delivered on time with full transparency. Here’s how we can help: 1. PCB Layouts – multi-layer, signal integrity, DFM checks 2. Embedded Systems – firmware for AVR, ARM, ESP, Arduino 3. Product Development – prototyping, testing, optimization 4. Power Electronics – converters, power supplies, efficiency tuning 5. Analog/Digital Circuits – grounding, shielding, EMC/thermal analysis What sets us apart is our client-first approach and attention to detail. I usually take on one project at a time, ensuring focus and quality at every stage. I’d be glad to learn about your goals—whether it’s performance, cost, or schedule. I’m available to start right away and can jump on a call this week to plan the next steps. Looking forward to connecting. Best regards, Abbas Jawadwala SMB ElectroTech
$500 USD in 7 days
5.9
5.9

hi Sir..Its me Imad, an embedded systems firmware developer and an experienced pcb designer. Already did a huge work in the development of antitheft systems for vehicles. Thanks for posting the job. Feel free to talk.
$250 USD in 5 days
5.1
5.1

OVER 10 YEARS OF EXPERIENCE IN EMBEDDED SYSTEMS & PCB DESIGN, HIGH QUALITY DELIVERY Hey there! I know one of the biggest challenges in automotive PCB design is making sure the board survives real-world conditions—voltage spikes, reverse polarity, and temperature swings—while still running an ESP32 reliably. That’s exactly the kind of problem I’ve solved in past projects where I built ESP32- and STM32-based boards with DC-DC regulators, relays, and proper automotive-grade protection. For your security system, I’ll design a compact PCB with a stable power stage (12V -> 5V/3.3V), TVS + fuse protection, and a relay module rated for ignition loads. I’ll also include all the usability details like LEDs, push button override, and clean terminal connectors so installation is straightforward. You’ll get full deliverables—schematic, PCB layout, Gerbers, BOM with suppliers, and testing instructions—and I can also provide basic firmware to handle the BLE relay logic if needed. I love working on practical IoT + automotive applications like this, and I’d be excited to make your design robust, reliable, and production-ready. Let’s build this into a security solution you can trust!
$500 USD in 7 days
5.1
5.1

Expert PCB Design for Your ESP32 Car Security System Hello. I am an experienced electronics design engineer with a proven track record in developing robust, automotive-grade PCBs, and I am very interested in your ESP32-based car security system project. My expertise includes designing for harsh 12V environments with proper protection circuits, integrating ESP32 and BLE functionality, and selecting components for high-reliability applications. I am confident I can deliver a complete, manufacturable, and tested solution that meets all your requirements, including the schematic, layout, Gerbers, and a tested BOM. Please contact me if you have time to chat. Best regards, Vlad.
$450 USD in 3 days
4.6
4.6

I have more than 10 years experience in electronics hardware design and firmware development with full product design . and i have done many Products based on esp32 . So I can do your job within a time limit with your satisfaction.
$3,980 USD in 30 days
4.9
4.9

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