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I need a turnkey Bluetooth Low Energy control system that lets my staff manage indoor electric drift bikes from an Android tablet. When a rider is ready, the attendant should be able to start or stop a bike over BLE with a single tap; if the link is lost or the preset ride time expires, the bike must shut itself down automatically via an onboard, hard-wired fail-safe timer that works even when the tablet or radio link is unavailable. A physical emergency-stop button on each bike must always override everything. Security is critical: only authorised tablets may connect, commands must be encrypted, and the bikes must default to a powerless, safe state on any fault. The system will run completely offline inside a shopping mall, so no cloud services are allowed. I operate between 11 and 20 bikes at the same time and need reliable coexistence in a noisy RF environment. Each bike should log ride start/stop times locally and export that data to the tablet for daily reports so I can track usage patterns and detect any unauthorised activity. Deliverables • Embedded firmware for the bike-side BLE module with secure pairing, local timer logic, shutdown routines, and activity logging • Android tablet app with a simple dashboard to select a bike, issue start/stop, display live status, download logs, and store them in CSV or SQLite for later analysis • Wiring diagram and BOM for integrating the BLE module, power relay, and hardware E-stop into the existing bike electronics • Test procedure that demonstrates safe-state behaviour on link loss, timer expiry, power failure, and emergency-stop activation • Source code, build instructions, and brief documentation so my technical staff can maintain the system in the future Acceptance will be based on: 1. Proven operation with at least 15 bikes running concurrently in an offline environment 2. Successful shutdown within the preset time even when the tablet is turned off mid-ride 3. Complete, tamper-proof ride logs exported to the tablet without data loss 4. Immediate motor cut-off when the hardware E-stop is pressed If you have solid experience with BLE device firmware, secure Android app development, and fail-safe design for mobility or amusement applications, your expertise will be invaluable on this project.
Projekt-ID: 40236864
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52 freelancere byder i gennemsnit $3.395 USD på dette job

With over 10 years of experience in web and mobile development, specializing in Bluetooth Low Energy (BLE) devices and secure Android app development, I understand the critical requirements of your project for a Secure Offline BLE Drift Bike Control system. The need for a turnkey solution that ensures authorized connections, encrypted commands, and fail-safe mechanisms aligns perfectly with my expertise. In the realm of mobility and amusement applications, I have successfully delivered projects similar to yours, including developing embedded firmware for BLE modules, creating Android apps for seamless control, and implementing fail-safe mechanisms for secure operations. My track record in building reliable systems with tamper-proof logging capabilities will ensure that your staff can effectively manage the indoor electric drift bikes in real-time. If you are seeking a proven expert in BLE device firmware, secure Android app development, and fail-safe design, I am confident in my ability to meet and exceed your expectations for this project. Let's discuss how we can bring your vision to life and create a safe, efficient solution for your business. Looking forward to collaborating with you on this exciting project.
$2.400 USD på 30 dage
8,3
8,3

Having studied Electrical Engineering with a specialization in firmware development, PCB design, and IoT product engineering, I believe I have the exact skill set your project demands. My experience working with a range of microcontrollers including STM32 (Which specifically supports your Nordic nRF52/nRF53 for BLE), ESP32, TI Tiva, C2000 will make firmware development for your bike-side BLE module an easy task. I'm prolific in Embedded C/C++ and have had years of experience with DMA, peripheral drivers and wireless stacks esp, IoT-ready) speaks to this. Furthermore, my proficiency in PCB design using Altium Designer, KiCad, Eagle, EasyEDA& Target adds value to this project considering the RF hardware expertise required. As an Electrical Engineer deeply interested in security measures,I understand how crucial it is to keep the system offline & secure. With my extensive knowledge in low-power,browsing electronic communications like MQTT,I offer you a 100% offline solution that keeps authorized tablets connected through encrypted commands while defaulting bikes to safe-state on errors. My familiarity with data logging and handling using SQLite databases or CSV files positions me ideally for implementing full-ride logging capabilities on your system which adheres strictly to regulation.
$2.750 USD på 30 dage
8,1
8,1

Hi there, I understand that you need a robust Bluetooth Low Energy control system for managing indoor electric drift bikes. Your requirements for secure, reliable operation in a noisy RF environment are clear, and I am confident in my ability to deliver a solution that meets these needs. I will develop embedded firmware for the bike-side BLE module, ensuring secure pairing and local timer logic for fail-safe operations. The Android tablet app will feature a user-friendly dashboard for managing bike operations and logging ride data. Communication and reliability are my top priorities. I will provide thorough documentation, a wiring diagram, and a test procedure to ensure the system operates flawlessly under all conditions. With my experience in BLE firmware and secure app development, I am well-equipped to handle this project effectively. I look forward to the opportunity to discuss your project further. Best regards, Burhan Ahmad TechPlus
$3.000 USD på 19 dage
7,2
7,2

Hello! I’m excited about the opportunity to help you create a robust BLE control system for managing your indoor electric drift bikes. With extensive experience in developing secure embedded firmware and Android apps, I understand the importance of a fail-safe design that ensures safety and reliability. I envision a seamless interaction between the authorized tablets and bikes, providing encrypted communication and automatic shutdown in case of any disruption. Could you share more about the current electronics setup on the bikes, or any specific brands of BLE modules you are considering? Also, I'm curious about your preferences for data analysis from the ride logs. Do you prefer real-time insights or detailed end-of-day reports? I’d love to discuss how my skills can bring your project to life. Let’s connect to explore this further!
$1.600 USD på 30 dage
5,7
5,7

Creating a robust Bluetooth Low Energy control system for managing indoor electric drift bikes requires precision and security. Your need for a system that enables seamless bike operation via an Android tablet, ensures automatic shutdown on faults, and maintains strong security measures is clear. I am excited about the opportunity to develop a solution that guarantees both rider safety and operational efficiency. With extensive experience in BLE device firmware and secure Android app development, I can deliver an integrated system that meets your stringent requirements. I will design firmware to handle secure pairing and fault-tolerant operations, and an intuitive app for easy bike management, ensuring reliable performance in a challenging RF environment. My focus will be on creating a tamper-proof logging system and a fail-safe mechanism that keeps safety paramount. Could you share more about the existing bike electronics to help tailor the integration process? Additionally, do you have any preferences for the user interface design on the tablet? Let’s discuss how I can help bring your vision to life.
$2.000 USD på 35 dage
5,6
5,6

Hi there, I read your brief and I can deliver an offline, secure BLE control system for 11–20 drift bikes: bike-side firmware with encrypted/authorized control, hard-wired fail-safe timer that shuts down on expiry or link loss, and a hardware E-stop that always overrides. I’ll also build an Android tablet app with a simple dashboard (start/stop, live status), log download, and CSV/SQLite reporting for daily usage tracking. You’ll receive the full firmware + app source, wiring diagram and BOM (BLE module, relay, E-stop integration), and a clear test procedure proving safe-state behavior (link loss, timer expiry, power fault) and immediate motor cut-off on E-stop. Best regards, Samuel Tshibangu
$2.250 USD på 7 dage
5,4
5,4

My portfolio boasts an extensive array of successful projects involving embedded systems, encompassing everything from firmware for microcontrollers to comprehensive mobile applications on both iOS and Android platforms. Particularly relevant to your needs, I have dealt with RFID security protocols, network outages, and ensuring data integrity across seamless but fault-tolerant communication channels. Finally, my deep appreciation for safety in entertainment and mobility applications is reflected not only in my qualifications but also my work ethic. My designs revolve around fail-proofing and ensuring user convenience yet never compromise on security and safety. Your project's blend of mobility and amusement elements perfectly aligns with this philosophy; thus, my skill set alongside experience with closure systems that rely on power outage would cater precisely to your demands when it comes to ride safety and data management.
$3.000 USD på 30 dage
0,0
0,0

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