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Request for a Custom Pre-Configured CAN/CAN-FD Gateway for EV BMS Development and Testing I would like to request a quotation for a complete, standalone CAN/CAN-FD gateway system. I am looking for a device that can be connected between the vehicle and the OBD connector using an OBD interposer, and that can operate independently without a PC using pre-loaded configurations. The main purpose of the system is development and testing of battery/BMS CAN communication in electric vehicles. The vehicles I would like to support are: * Tesla Model 3 * Tesla Model Y * Kia e-Niro * Hyundai Kona Electric * Volkswagen ID.3 * Volkswagen ID.4 I will provide the exact model years for each vehicle at the beginning of the project. Required functionality * At least 2 independent CAN/CAN-FD channels * Automotive-grade, reliable hardware * Standalone operation without a PC * Programmable/configurable firmware * CAN message filtering and routing * Message- and signal-level processing * The ability to modify selected CAN/BMS signal values in real time before forwarding the messages * The ability to apply predefined value transformations or substitutions to selected BMS signals * CAN/CAN-FD support as required by the individual vehicle * Counter/CRC/checksum handling where required * Suitable OBD-II male/female interposer or compatible wiring * Separate pre-configured profiles for all six vehicles * CAN traffic analysis and creation of the required DBC/CAN databases where necessary * Complete commissioning and testing of the system * A final ready-to-use device that I can simply connect to the vehicle and select the appropriate vehicle configuration I do not have CAN/CAN-FD programming experience, so I am specifically looking for a complete turnkey solution, rather than a development kit. I would like the developer to handle the CAN traffic analysis, DBC creation, firmware/configuration development, hardware integration and final testing. The value-modification functionality is particularly important. The system should be capable of receiving a selected BMS CAN message, modifying specified signal values according to a predefined configuration, correctly handling any required counters/checksums/CRCs, and then forwarding the resulting message in real time. The system should also allow different predefined configurations to be stored for the different vehicle models. Could you please let me know: 1. Can you develop such a system? 2. Can you provide the complete hardware and OBD interposer? 3. Can you analyze the CAN/BMS communication of all six vehicles? 4. Can you provide a pre-configured system that operates independently without a PC? 5. Can the device modify selected BMS signal values in real time before forwarding the messages? 6. Can you implement the required counter, checksum and CRC handling? 7. What hardware would you recommend for this application? 8. What information and/or access to the vehicles would you require? 9. What would be the estimated development time and total cost? My goal is to obtain a reliable, ready-to-use, multi-vehicle system rather than a development kit. Thank you in advance for your response. Best regards,
Project ID: 40643430
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49 freelancers are bidding on average $1,144 USD for this job

As an experienced electrical engineer with a proven track record in creating reliable and high-performance electronic solutions, I am confident in my ability to meet and exceed your expectations for this project. Not only am I proficient in designing and developing PCBs, I specialize in implementing complex communication protocols such as CAN/CAN-FD which are crucial to the success of your gateway system. More importantly, my profound knowledge in RF design fits perfectly with your vehicle selection which require CAN/CAN-FD support. In addition, my mastery of firmware development will ensure that your device is more than just hardware by offering a user-friendly, pre-configured system that operates independently - without the need for a PC. This will allow you to focus on your project's main purpose: development and testing of battery/BMS CAN communication in electric vehicles, without the stress of compatibility or technical glitches. Lastly, I understand that value-modification functionality is paramount for your project. My ability to analyze CAN/BMS communication extensively will guarantee seamless message forwarding with correct handling of counters/checksums/CRCs based on predefined configurations - all while maintaining real-time adjustments to specified signal values. I assure you a comprehensive multi-vehicle system tailored precisely to your needs, on time and within budget.
$1,125 USD in 5 days
6.9
6.9

HI, KINDLY READ THROUGH MY PROPOSAL I will link your vending machine with an ESP32/ESP8266 for smart IoT control, enabling remote monitoring, inventory tracking, payment integration, and real-time alerts while keeping the existing hardware intact. MY APPROACH ✅ Phase 1: Analyze vending machine controller interfaces (relays, sensors, coin/ bill acceptors) and plan ESP integration. ✅ Phase 2: Develop firmware for ESP (using Arduino/ESP-IDF), add WiFi/GSM connectivity, and implement secure communication. ✅ Phase 3: Full testing, remote access setup, and deployment with documentation. RELEVANT PROJECTS - Multiple IoT vending machine integrations with ESP32 for remote management and telemetry. - Experience with industrial automation, sensors, and cloud connectivity (MQTT, Blynk, Firebase). DELIVERABLES - Complete ESP firmware and wiring diagrams - Working prototype integration - Remote monitoring dashboard setup - Full documentation and source code QUESTIONS 1. What ESP model do you prefer (ESP32 or ESP8266) and any existing controller details? 2. Which features are priority (inventory, payments, remote lock, alerts)? 3. Can you share photos/schematics of the vending machine’s current control board? Ready to start immediately. I can deliver a working prototype quickly after receiving details.
$800 USD in 3 days
6.5
6.5

Hi, I can develop this as a complete standalone CAN/CAN-FD EV gateway rather than simply providing a development kit. My background in embedded hardware, automotive communications, microcontrollers, CAN-based diagnostics, and production PCB/firmware development aligns well with the requirements. I can design the gateway around an automotive-grade MCU with at least two independent CAN/CAN-FD interfaces, protected automotive power input, OBD-II interposer connectivity, non-volatile configuration storage, and standalone firmware. The firmware can support configurable message filtering/routing, signal-level decoding, real-time value modification, substitutions/scaling, and forwarding with deterministic timing. A key part of my approach would be handling vehicle-specific counters, checksums and CRCs correctly rather than treating CAN frames as simple byte streams. I can structure separate profiles for the Tesla Model 3/Y, Kia e-Niro, Hyundai Kona Electric, VW ID.3 and ID.4, with the exact model years and observed traffic used to finalize each profile and DBC/database. I would deliver the hardware, firmware, configuration profiles, DBC/CAN databases, OBD interposer, commissioning procedure and test documentation. Development can be organized into milestones: architecture/prototype → CAN analysis & profile development → firmware integration → vehicle testing → final turnkey unit. Regards,
$750 USD in 1 day
5.8
5.8

I’m an Electrical Engineer with a strong technical team experienced in automotive electronics, embedded systems, CAN/CAN-FD, BMS communication, firmware, and vehicle diagnostics. We have completed similar projects for clients in the UK, USA, Canada, Oman, Saudi Arabia, and other countries. Your standalone CAN/CAN-FD gateway project is an excellent match for our expertise. We can develop a turnkey system with dual CAN/CAN-FD channels, standalone firmware, message filtering/routing, signal-level processing, configurable value modification, and reliable counter/CRC/checksum handling. We can also handle the hardware integration, OBD interposer, firmware, DBC/CAN database development, vehicle-specific profiles, commissioning, and testing. The device can store separate configurations for the six vehicle platforms and operate without a PC. We understand that real-time BMS signal modification and correct protocol handling are critical requirements. We will design the system for deterministic, reliable operation and provide clear configuration and documentation. We are ready to discuss the required vehicle model years, CAN access, testing arrangements, and hardware requirements so we can propose the most suitable architecture and development plan.
$1,125 USD in 7 days
6.2
6.2

⭐⭐⭐⭐⭐ Your project is a strong match for my 15+ years of embedded electronics and firmware development experience. I understand that you need a true standalone CAN/CAN-FD gateway, not a PC-connected development tool. I can develop the hardware and firmware around a suitable automotive-grade MCU/transceiver architecture with at least two independent CAN/CAN-FD channels, non-volatile vehicle profiles, filtering/routing, signal-level processing, and real-time message modification. The core gateway would support: • Pre-configured profiles for each vehicle • CAN/CAN-FD filtering and routing • Signal extraction and value modification • Configurable substitutions/transformations • Counter, checksum and CRC recalculation where required • Deterministic forwarding with appropriate timing • Standalone operation and simple vehicle-profile selection • OBD interposer and complete commissioning documentation I would approach this in stages: first establish the hardware architecture and analyze representative CAN traffic, then build the gateway firmware and database/profile system, followed by vehicle-specific validation. Once I review those details, I can recommend the MCU/transceiver hardware and provide a realistic development timeline and cost rather than guessing. I’d be happy to discuss the first vehicle and build the architecture so additional vehicle profiles can be added cleanly.
$1,125 USD in 7 days
5.5
5.5

Hi, I am a Senior Embedded Systems and PCB Design Engineer with 10+ years of experience in automotive, IoT, and communication systems, including CAN/CAN-FD, STM32, ESP32, and custom embedded hardware; I have developed 20+ production-level embedded devices with reliable communication and real-time control features. Approach: ✅ I will analyze vehicle CAN/CAN-FD networks using professional CAN tools, capture BMS traffic, identify signals, and create accurate DBC databases for each supported EV platform. ✅ I will design the gateway hardware with automotive-grade components, dual CAN/CAN-FD interfaces, protection circuits, isolated communication where required, and a standalone MCU-based architecture. ✅ I will develop embedded firmware for message filtering, routing, signal modification, real-time value transformation, and counter/CRC/checksum management with configurable vehicle profiles. ✅ I will complete system integration, OBD interposer development, vehicle testing, and deliver a ready-to-use standalone gateway with documentation. Questions: ✅ I would like to confirm whether physical access to all six target vehicles is available for CAN traffic analysis and validation. ✅ I would like to know the exact vehicle model years and required BMS signals that need modification or simulation. ✅ I would like to confirm the preferred configuration method for selecting vehicle profiles (hardware switch, USB, CAN command, or other interface). Best, Yaroslav
$1,125 USD in 7 days
5.3
5.3

You're building Customizable CAN/CAN-FD EV Gateway Development, where the real delivery risk is usually in the workflow details, not just the feature list. I have handled similar systems where the important part was turning a broad brief into a reliable working version. My approach would be to first isolate the highest-risk workflow in the brief, then deliver a small working milestone that proves the architecture before expanding the rest. For this project, I would focus especially on: - core workflow risks and acceptance criteria - integration points and edge cases - milestone planning and handover clarity If helpful, I can outline the first milestone around the riskiest part of the build before we start. Best, Dr. Syafiq
$1,125 USD in 21 days
5.3
5.3

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
$1,125 USD in 7 days
5.3
5.3

Hello sir, Did go through your job description and glad to share that I have enormous experience in working with Customizable CAN/CAN-FD EV Gateway Development I'm a seasoned programmer and Engineer with quality experience in Flutter, React, Node.JS, SpringBoot, Frontend and Backend Development, Python, Matlab, R studio, C, C++, C#, OpenCV, OpenGL, Tesseract OCR, google vision, Statisticaal programming/R progamming data analysis Computing for Data Analysis Time Series & Econometric, Machine learning, AI, Deep learning, Matlab and Mathematica, 3D modeling, CAD/CAM,AutoCAD, 2D, Architectural Engineering, SolidWorks, Unity 3D, PCB, Electronics, Arduino, Automation, Embedded and Firmware , IOT, Electrical/Mechanical Engineering I am a TOP Rated Freelancer, and you can check my reviews here as well: https://www.freelancer.com/u/mzdesmag. Looking forward to potentially working together on this project. Thanks and Best regards, Adekunle.
$750 USD in 7 days
5.3
5.3

As an Automotive Engineer with a robust background in Electronics and Embedded Systems, I am confident that I can deliver the custom, pre-loaded CAN/CAN-FD gateway system you require. My expertise in system development and testing aligns perfectly with your project needs, as does my ability to work with automotive-grade, reliable hardware – a key requirement you’ve mentioned. I fully understand your desire for a turnkey solution and can assure you that I have the ability to analyze the CAN/BMS (Battery Monitoring System) communication of all six vehicles you listed. This includes creating the necessary DBC/CAN databases and crafting separate pre-configured profiles for each vehicle – ensuring the correct signal values are modified, counters are handled appropriately, and that any required checksums or CRCs are implemented effectively.
$756 USD in 1 day
4.9
4.9

As an experienced Senior Electronics Engineer specializing in embedded systems, I believe I am the best fit for your project. Over the past 8 years, I have successfully designed, tested, and delivered numerous robust hardware solutions, including RF modules and embedded controllers like what you need for your CAN/CAN-FD EV Gateway System. My expertise includes not just developing and integrating the firmware, but also ensuring compliance with safety and performance standards for every element of the system. RAR Ltd., my previous employer works on high-power electronic devices maintaining compliance with all standards. Thus this makes me perfect to handle the task of designing your OBD interposer. Furthermore, I have a comprehensive understanding of RF engineering alongside circuit design, Microcontroller programming, and power electronics which are highly relevant for developing your vehicle modulating system. I understand that you don't have CAN/CAN-FD programming experience. Hence my deep knowledge and proven track record in handling such complex projects leads me to assure you not just standard work but a highly customizable system capable of analyzing the CAN/BMS communication of all six vehicle models mentioned by you. To ensure a seamless process, I would need specific information about model/year attributes and necessary access to the vehicles which will be handled strictly with professionalism. My commitment is to deliver a reliable turnkey solution that meets your expectations within your required timeframe and budget. Let's get started!
$1,125 USD in 14 days
4.4
4.4

As an electrical engineer with extensive experience in electronics, I am confident in my ability to develop a highly-customizable CAN/CAN-FD gateway system for your EV BMS development and testing needs. I have a strong grasp of automotive-grade hardware, firmware programming, and CAN traffic analysis. I truly understand the value-modification functionality you desire and my skills in real-time signal processing align perfectly with that requirement. Moreover, my proficiency in creating and modifying DBC/CAN databases will ensure accurate analysis of CAN/BMS communication for all six vehicle models you mentioned. Besides the software aspect of this project, I am also well-versed in hardware integration and can provide a complete turnkey solution with the necessary OBD interposer. In fact, I'm adept at transforming complex requirements into ready-to-use devices that seamlessly integrate with existing systems.
$750 USD in 7 days
5.0
5.0

Dual CAN-FD channel routing on automotive power rails requires strict transceiver isolation, transient voltage suppression, and split termination to prevent bus distortion across vehicle interfaces. Designing a robust standalone OBD-II interposer board hardware requires handling 12V automotive transients, reverse polarity, and ESD while cleanly routing high-speed differential CAN signals. The hardware architecture will feature two independent CAN/CAN-FD transceivers with dedicated common-mode chokes, automotive-grade power regulation, and pin-compatible headers for off-the-shelf control modules. I will deliver production-ready native KiCad or Altium schematics, board layout, Gerber outputs, drill files, pick-and-place data, and assembly documentation for the complete interposer and gateway baseboard. What physical footprint or enclosure constraints do you have for the OBD-II interposer housing inside the vehicle footwell?
$940 USD in 8 days
4.5
4.5

As part of Web Crest, I'm an expert in implementing challenging technical solutions using a diverse range of technologies - including automotive and electrical engineering. Not only would I be able to develop the comprehensive system you're seeking, but my team is equipped to handle all aspects of the project, from CAN traffic analysis to DBC creation, firmware development, and complete system testing. Our combined skills in software development make us particularly well-suited to create a standalone, pre-configured system that operates without a PC -- just what you are looking for. To ensure the system aligns with your requirements, I will meticulously analyze the CAN/BMS communication of each vehicle on your list: Tesla Model 3 & Model Y, Kia e-Niro, Hyundai Kona Electric, Volkswagen ID.3 & ID.4. With over [insert number of years] years of experience in engineering EV systems and working with automotive-grade hardware, I hold extensive knowledge in programming such gateways.
$750 USD in 5 days
3.0
3.0

Greetings! I can develop a complete standalone CAN and CAN-FD gateway system for your EV BMS development and testing, including hardware, OBD interposer, vehicle-specific profiles for all six models, and real-time signal modification with counter and checksum handling. I can provide a turnkey solution ready for independent operation. I can outline required vehicle access and provide a timeline and cost estimate. Let me know your preferred start date and I will begin. Thanks, Revival
$750 USD in 14 days
1.5
1.5

HI, KINDLY READ THROUGH MY PROPOSAL Your main challenge is making one standalone gateway reliably translate and modify BMS CAN/CAN-FD traffic across six vehicle platforms, including correct timing and integrity handling. I’m an Electronics Engineer with 6 years of relevant embedded experience. I’d build it around automotive CAN/CAN-FD transceivers, configurable routing/filtering, signal processing, and profile-based firmware. I’d handle DBC work, hardware integration and validation. Before proceeding: which model years are available, and can you provide vehicle access and captured CAN logs? PLEASE INITIATE A CHAT I look forward to collaborating with you. I’d structure profiles for validation
$750 USD in 3 days
0.6
0.6

Hello, As a seasoned Full-Stack Developer and Automation Engineer, I'm confident that I have the expertise you need for this extensive EV Gateway development project. Having worked with various programming languages including C, C++, Python, Java, and more, I can expertly handle the firmware and configuration tasks essential in your list of requirements. Additionally, my profound knowledge in electronics and microcontrollers would be invaluable in creating the automotive-grade hardware you desire. Regarding the heart of this project - CAN traffic analysis, DBC creation, and CAN message modification - I'll bring extensive experience as an AI & Automation Engineer to bear on your behalf. From data management and extraction using tools like Scrapy and BeautifulSoup to database administration and programming with MySQL, PostgreSQL, SQL, MongoDB and more, my skill set is well-suited to reliably delivering the multiple vehicle profiles you need without fault. téc In addition to technical expertise, I prize effective communication highly. Throughout the project duration, openness and transparency will be guaranteed from my end. My goal is always to meet my client's expectations precisely while delivering on time and within budget. By trusting me with this task I assure you not of just a reliable multi-vehicle system but also a professional partner dedicated to your satisfaction. Thanks!
$750 USD in 3 days
0.0
0.0

This is a really strong project concept, and the emphasis on a pre-configured standalone solution makes the end product particularly valuable. I can take responsibility for the complete implementation from hardware architecture and CAN analysis through firmware development, DBC creation, vehicle-specific configuration, and final testing. Which signals do you initially expect to modify, and do you already have target values or transformation rules for those signals?
$1,125 USD in 7 days
0.0
0.0

With a background in electrical engineering and a wealth of experience in app and software development, I am uniquely positioned to tackle your project involving the creation of a customizable CAN/CAN-FD gateway system. My programming fluency extends from Python to C# to Java, giving me the proficiency necessary for developing your desired system. Moreover, my skillset in areas such as Blockchain Analysis, Internet Security and Pine Script Development demonstrates my ability to handle complex, real-time, data manipulation tasks with precision and accuracy. Undoubtedly, the success of your project depends heavily on detailed understanding of how different EVs communicate through their CAN/BMS systems. As an experienced developer, I've often had to analyze and reverse-engineer various protocols, making me suitably qualified to efficiently handle the CAN traffic analysis of all six models you specified. In addition, my problem-solving skills allow me to adapt readily to new technologies and coding languages -enabling me to work with ease on diverse hardware types. Not only can I develop the system outlined in your description but I can also provide the complete hardware solution including an OBD interposer proven effective during previous automotive projects.
$1,125 USD in 5 days
0.0
0.0

Hi We are available to take this on and get your custom CAN/CAN-FD gateway system working perfectly. The main issue with partially built gateway systems is usually the real-time signal modification or checksum handling not lining up for EV battery management systems specifically. Are you planning to use dual-core automotive microcontrollers for better standalone performance and do you want the modified CAN data logged locally or streamed directly via the interposer? We recently fixed a similar automotive CAN routing device for a transport firm that needed custom message injection into vehicle buses. We used low-level microcontroller APIs to hook into the CAN interrupt handlers and built a robust firmware package that validated inputs before using real-time buffer updates to forward the messages. We corrected their peripheral initialization structure to ensure reliable bus communication across varying baud rates. Our fix stopped their BMS data from being lost during frame transmission and made the whole testing process way faster for their engineering team. We are eager to discuss the project further. Reach out to initiate a conversation! Best regards, Quantum Code Solutions
$1,125 USD in 7 days
0.0
0.0

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₹12500-37500 INR
₹12500-37500 INR