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Project Brief: Stealth-Modified Automatic Parking Disc (Certified for Public Road Use in Germany) Project Goal: I want to technically modify a certified electronic parking disc approved for use in Germany (must have an official certification number and ECE approval), so that it continues to automatically update the displayed parking time even after the vehicle has been parked. This modification must be invisible and undetectable from the outside, meaning the device must look and behave like the original product to any observer or parking enforcement officer. Background: Standard electronic parking discs are designed to detect when a vehicle is turned off and then freeze the display at the next permissible half-hour mark. This allows parking enforcement to determine how long the car has been parked. However, I want the parking disc to be modified so that it continues updating the time, effectively simulating that the vehicle has just been parked — regardless of how long it has been stationary. This means that the parking time shown on the display always remains within the legal limit, allowing me to park indefinitely without receiving a ticket. What needs to be done: • The base must be an officially approved German electronic parking disc, such as those from Park Lite, Needit, or similar. • I can ship the device to you from Germany, or you can order it yourself (I’ll cover the cost). • The device must be technically modified so that: • The displayed time continues to update automatically, even after the engine is turned off. • It always displays the next allowed parking time, rounded up to the next full or half hour according to German regulations. Example Functionality: • If the car is parked at 13:45, the disc should show 14:00. • If parked at 14:00, it should show 14:30. • If parked at 14:31, it should show 15:00, and so on. • After that, the device should continue to update the display regularly, so it always appears as if the car was parked just moments ago. Key Requirements: • The modification must be completely undetectable from the outside. The parking disc should look and behave exactly like an unmodified, legally approved product. • The functionality must be fully automatic. No user interaction should be needed after parking. • No visible alterations (e.g., wires, unusual controls, abnormal movement patterns). • Power should remain efficient — preferably still battery-powered or with a hidden upgrade that doesn’t draw attention. Ideal Freelancer Profile: I’m looking for someone with experience in electronics, microcontroller programming (e.g., Arduino), or embedded systems. Ideally, you’ve worked with consumer electronics, automotive modifications, or smart devices before. Both functionality and stealth are equally important for this project. ⸻ Let me know if you have questions or need specific details (such as device models). Looking forward to collaborating!
Project ID: 40552852
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23 freelancers are bidding on average €135 EUR for this job

Hello, I am a Mechanical Design Engineer with extensive experience developing products from concept through manufacturing. My background includes robotics, automation systems, lifting mechanisms, consumer products, machine design, structural analysis, and prototype development. Previous projects include robotic arms, delivery robots, automated machinery, lifting systems, drone mechanisms, wearable devices, vehicle accessories, medical devices, and custom electromechanical products. I can support your project with: ✓ Concept development and mechanism design ✓ 3D CAD modeling (SolidWorks / Fusion 360) ✓ Manufacturing drawings and documentation ✓ Design for Manufacturing (DFM) ✓ FEA simulation and validation (ANSYS / Solidworks) ✓ Prototype preparation for CNC machining and 3D printing I also operate with manufacturing support capabilities for CNC machining and 3D printing, allowing designs to be developed with practical production constraints in mind. Please send the project details and I can review feasibility, expected challenges, and the best development approach before we begin. Portfolio and reviews: http://www.freelancer.com/u/ENG1mga Best regards, Mahmoud
€250 EUR in 2 days
6.7
6.7

Hello, I can help with a compliant electronic parking-disc or parking-assist device project, including hardware review, firmware debugging, low-power design, display control, accelerometer/vehicle-motion detection, enclosure integration, and production-ready documentation. I have experience with embedded electronics, microcontrollers, consumer-device modification, battery-powered products, sensor-based state detection, and compact hardware prototyping. For this project, I can review the selected parking-disc hardware, analyze its existing behavior, repair or improve reliability issues, optimize battery usage, and develop legally compliant reminder or accessibility features such as parking-time alerts, display diagnostics, calibration, or companion notification logic. I can also provide schematic review, firmware changes, test procedure, and a clear explanation of what can be safely modified without compromising certification or intended legal use. I can support a compliant redesign or prototype that preserves the product’s normal lawful function and avoids any hidden or deceptive behavior. Please share the exact parking-disc model, photos of the PCB, display type, power source, and your required legal feature set, and I can begin with a feasibility review before implementation. Regards.
€140 EUR in 1 day
5.7
5.7

Hello, I have carefully reviewed your project brief regarding the modification of a certified German electronic parking disc. As an experienced Embedded Systems Engineer, I understand the technical constraints: maintaining the original physical appearance, ensuring ultra-low power consumption, and automating the time-update logic seamlessly without modifying the external housing. Technical Approach: To achieve a completely stealth and reliable modification, I propose using a Hardware Spoofing method rather than attempting to rewrite the protected firmware of the main MCU. 1. Micro-MCU Integration: We will integrate an ultra-small, low-power microcontroller (such as an ATtiny or similar DFN-packaged MCU) inside the existing enclosure. 2. I2C/SPI Sensor Emulation: The secondary MCU will interface between the main board and the onboard accelerometer. By simulating periodic movement signals (pseudo-vibrations) over the communication bus every 29 minutes, we will trigger the main MCU to recalculate the parking time without needing physically moving parts. 3. Power Optimization: The added circuit will operate in Deep Sleep mode, drawing less than 2-3µA, ensuring the original battery life is not visibly affected. 4. Clean Assembly: All modifications will be done using micro-soldering (magnet wires) and sealed with black conformal coating/epoxy to remain virtually invisible upon casual internal inspection. Project Stages: Phase 1: Reverse engineering the target device (e.g., Park Lite) to map the schematic, identify the accelerometer, and analyze the bus communication. Phase 2: Developing the firmware for the helper MCU and prototyping on a breadboard. Phase 3: Physical integration, power consumption profiling, and testing. I would prefer you to order the target device and ship it to my location for analysis. Let's discuss which specific model (Park Lite or Needit) you prefer to target first. Best regards,
€30 EUR in 1 day
4.9
4.9

I specialize in electronics and microcontroller programming, ensuring stealthy and functional modifications. I will adapt your electronic parking disc to continue updating automatically while maintaining its certified appearance, using discreet embedded solutions. With experience in consumer electronics and embedded systems, I will ensure the device remains legally compliant and undetectable, meeting all project specifications effectively and efficiently.
€100 EUR in 10 days
4.1
4.1

Hey, sounds like you're looking to keep that parking disc stealthy and undetectable while it updates the time on its own. I’d use an Arduino microcontroller to simulate the vehicle's movement and subtly adjust the time. I’ve handled similar mods on consumer electronics, ensuring they remain discreet and fully functional. Are there specific models you're considering for this modification, or do you have a preferred brand to work with?
€30 EUR in 1 day
4.0
4.0

Hey, You are looking for Smart Parking Disc Modification "Lets Gets Started, I know you have several tempting proposals here, but I guarantee you to be impressed by my work. I have various skills in design, Illustration, Photoshop, Graphic Design, Logo Design and Illustrator. If you give me this chance you will be impressed, because I guarantee that I will meet your expectations. I invite you to get a look at my portfolio You Can see it from here : https://www.freelancer.com/u/sahildogra222 If you have any questions or queries, do not hesitate to contact me. I hope to start working with you. With regards! SAHIL
€30 EUR in 1 day
4.0
4.0

Hello, I can help develop a legal parking-time reminder or compliance-support device based on your requirements. I have experience with embedded systems, microcontrollers, low-power electronics, sensors, and consumer device prototyping. Instead of modifying a certified parking disc to bypass enforcement, I can design a separate reminder system that detects when the vehicle is parked, calculates the correct next half-hour parking time, and alerts the driver before the legal parking limit expires. The solution can be battery-powered, compact, reliable, and fully documented with firmware, wiring, enclosure recommendations, and testing steps. I can also help evaluate approved electronic parking discs for legitimate use and ensure the final design does not invalidate certification or violate road-use regulations.
€300 EUR in 4 days
3.5
3.5

Hello, Client. I reviewed your project details carefully. I have experience with electronics, microcontrollers, embedded systems, PCB design, firmware, power management and consumer-device prototyping, I can assist with modifying a certified German electronic parking disc to continue updating after parking or to make the alteration invisible to enforcement. What can I help: • A reminder device that alerts before parking time expires • A mobile or embedded timer based on parking rules • A compliant display device for private/off-road use • Low-power firmware, PCB design, BOM, enclosure and prototype support • Testing and documentation for a transparent, deceptive product I can start immediately.
€200 EUR in 7 days
2.8
2.8

My name is Joshua and I am from Oakland. I want you to write a Freelancer.com bid for me. Very important rules: Write the bid in English. Keep the total length under 1400 characters. Use only simple characters that can be typed easily on a normal keyboard. Do not use bullet points. Do not use headings. Do not use labels like Proposal, Summary, Approach, or similar. Do not add any extra notes, explanations, or comments. Do not include anything in brackets. Do not add unwanted text after Q3. Do not cut off the ending. Write in a natural, professional, client-friendly style. Keep the sentences short, clear, and direct. Make the bid easy to scan quickly. Put every sentence on its own line. Leave a blank line between paragraphs. Follow this exact structure: Paragraph 1: Start with exactly this style: "Hi, this is Joshua from Davis." Then add one short sentence about my background and experience. Paragraph 2: Show that you understood the client's project clearly. Explain the client's main goal in a simple and confident way. Then present the most suitable solution for the project. Paragraph 3: Explain briefly how you would implement it technically. Keep it concise, professional, and relevant to the client's needs. Paragraph 4: Write exactly one sentence saying that I can communicate in real time in the client's time zone and can provide a simple demo or part of the project within 12 hours of starting. Paragraph 5: Ask exactly 3 client questions in this exact format: Q1: ..
€155 EUR in 4 days
0.0
0.0

If the disc keeps drawing extra current after the engine stops, a quick battery check could reveal the tampering. I’ll reprogram the microcontroller to keep the display advancing while throttling power to stay within the original consumption profile. The firmware will calculate the next half‑hour slot and update the LCD every few minutes, all hidden inside the stock case. A common mistake is to add a visible external module, which instantly flags the device as non‑standard. By using the existing MCU and a tiny reflowed chip, the modification stays invisible and the disc behaves exactly like the certified version. You can expect a working unit that passes visual inspection and keeps the displayed time always within the legal limit.
€100 EUR in 4 days
0.0
0.0

Hello, I see the intriguing challenge of modifying a certified electronic parking disc for German road use to keep the displayed time continuously updating, all while maintaining the device's original appearance and certification standards. With my background in embedded systems and microcontroller programming, I can discreetly engineer a solution that seamlessly integrates with the existing hardware, utilizing efficient power management and stealth techniques. I have previously worked on consumer electronics modifications, ensuring both functionality and undetectability, which aligns perfectly with your project's requirements. To proceed, I would need the device details and possibly some legal considerations to ensure full compliance while implementing this covert feature. My approach guarantees that the device appears untouched and functions flawlessly, providing a permanent solution for your parking needs. Looking forward to your response to discuss the technical specifics or any questions you might have. Thanks, Gourav
€30 EUR in 1 day
0.0
0.0

Hi, I've carefully reviewed your project requirements and I'm confident I can deliver a clean, reliable, and scalable solution that meets your expectations. I focus on quality, clear communication, and on-time delivery. Before getting started, I'd like to discuss a few details to fully understand your goals and recommend the best approach. This helps avoid unnecessary revisions and ensures the final solution fits your requirements. I can start immediately and will provide regular progress updates throughout the project. Let's connect and discuss the details. I look forward to working with you!
€140 EUR in 7 days
0.0
0.0

Hello, ⚡ Your stealth parking disc modification aligns perfectly with my experience in embedded systems and automotive electronics. ⚡ I am a hardware engineer with experience in microcontroller-based modifications and stealthy device upgrades. I will modify your certified parking disc to continuously update the displayed time while maintaining its original appearance and functionality. I have experience with similar projects. I am available to start immediately. Let’s discuss the device model and your specific requirements. Best regards.
€140 EUR in 2 days
0.0
0.0

Hi, I can surely assist you in modifying the certified electronic parking disc for continuous automatic time updates post-parking. I will utilize an officially approved German parking disc and ensure that the displayed time always complies with German regulations, seamlessly simulating recent parking. To achieve this, I will handle the technical modification of the device, maintaining its exterior appearance and behavior to mimic an unaltered product. The functionality will be entirely automatic, requiring no user intervention, and power efficiency will be a priority. I propose a realistic timeline for completion. One question: Do you have specific preferences for the device model? Regards, Alex
€150 EUR in 10 days
0.0
0.0

We recently helped a tech startup achieve streamlined automation for a similar project. Our expertise lies in developing custom solutions for electronic devices, aligning perfectly with your goal of modifying the parking disc to update seamlessly and invisibly. I noticed your emphasis on a "clean" and "seamless" modification, which resonates with our commitment to delivering professional, user-friendly solutions. With our extensive experience in electronics, microcontroller programming, and embedded systems, we are well-equipped to tackle this project. We have 75+ 5-star reviews on similar projects and rank in the top 1% among 75 million users! Let's discuss how we can bring your vision to life effortlessly. Regards, Hamza
€150 EUR in 7 days
0.0
0.0

Hi! I have experience with embedded systems, microcontroller programming, and electronics design, and I'd be happy to assist with legitimate firmware and hardware development projects. I can work with existing electronic devices, develop custom PCB solutions, optimize power management, and create reliable embedded software while maintaining clear documentation throughout the project. I communicate regularly, provide milestone updates, and can deliver complete design files, source code, and testing documentation. I'd be glad to discuss your technical requirements and propose the best solution for your project.
€100 EUR in 2 days
0.0
0.0

hi! there. embedded systems projects like this are very important because smart automotive devices are becoming part of everyday life. i’m really interested in stealth level hardware integration and low power control systems. one challenge is keeping stable time synchronization without affecting battery life, another is preserving the original hardware behavior perfectly. i can solve both with careful microcontroller tuning and clean pcb level work. thanks!!
€115 EUR in 2 days
0.0
0.0

Hello, Thank you for sharing your project details. I understand you're looking for an experienced embedded systems developer who can modify or develop an electronic device with reliable automatic time-management functionality while maintaining a clean, compact, and professional hardware design. As a professional with experience coordinating technical design projects, I focus on delivering dependable embedded solutions using microcontrollers, sensor integration, low-power electronics, and efficient firmware development. My approach begins with understanding the device architecture, reviewing the hardware, and identifying the most reliable implementation method before developing and testing the firmware to ensure stable operation. Throughout the project, I emphasize clear communication, careful documentation, and thorough testing so the final solution performs consistently and meets the agreed technical requirements. I also prioritize maintaining the product's reliability, battery efficiency, and overall build quality. I would be happy to discuss your technical objectives, preferred hardware platform, and project timeline to determine the best engineering approach for your application. I look forward to hearing from you and discussing your project in more detail.
€250 EUR in 3 days
0.0
0.0

Hello, I’m a Computer Science Engineering student with hands-on experience in embedded systems, Arduino, ESP32, ESP8266, IoT, and electronics prototyping. I have built and documented multiple real-world hardware projects involving sensors, wireless communication, embedded C/C++, automation, and custom PCB/prototyping. Several of my projects have been featured on Autodesk Instructables. I can assist with firmware development, hardware integration, circuit design, debugging, testing, and documentation. I focus on writing clean, maintainable code and ensuring reliable hardware performance throughout the project. I communicate regularly, provide progress updates, and deliver well-documented work on time. I'd be happy to discuss your requirements in detail and suggest the best technical approach before we begin. Looking forward to working with you. Best regards, Arham Sameel (SAM Robotics)
€140 EUR in 7 days
0.0
0.0

Hello, Thank you for sharing the details regarding the project. I have extensive experience in embedded systems, microcontroller programming, PCB design, and consumer electronics development. I can assist with technical analysis, repair, reverse engineering, and performance evaluation of certified electronic parking discs, including hardware and firmware assessment, power optimization, and functional testing. However, I believe we should proceed with caution, as the requested modifications involve altering a certified device in a way that could bypass parking regulations, enforcement mechanisms, certification requirements, or other compliance features. I would like to discuss your requirements and provide a detailed proposal. I look forward to hearing from you. Best regards,
€200 EUR in 6 days
0.0
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Ataşehir, Germany
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