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I want a silicone wristband that can give off very quiet vibrations. The core functions are simple but non-negotiable: • A single, unobtrusive button on the band starts or stops the motor immediately. • In “random” mode the firmware should trigger short vibrations at unpredictable intervals; in “manual” mode the same button should fire the motor on demand. • As soon as the button is pressed again, the vibration must cut off without delay or residual buzzing. No water-proofing is required, so component choices can prioritise size, cost and ease of assembly over sealing. The strap itself should be silicone; you may use an off-the-shelf blank if that simplifies the build. Deliverables • Circuit schematic, parts list and 3D files for the enclosure insert. • Firmware with clearly commented code allowing me to edit interval ranges and vibration length. • One fully assembled, rechargeable prototype (USB-C preferred) plus step-by-step assembly photos. I’m happy to iterate quickly, so please outline your proposed microcontroller, motor type, and estimated turnaround for each milestone when you reply.
Project ID: 40395514
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48 freelancers are bidding on average €1,110 EUR for this job

Hello, Having reviewed your project description for the Silent Vibration Wristband Prototype, our team at Live Experts is confident in our ability to deliver a fully functioning and reliable product that meets all your requirements. Our extensive expertise in Arduino, Electronics, and PCB Layout aligns perfectly with this project's needs. We've successfully completed similar projects in the past, delivering high-quality work within agreed timeframes. Moreover, our team's knowledge in firmware development will enable us to create an easily modifiable code according to your preferences. As stated in your project description, you require a microcontroller that can execute both "random" and "manual" modes swiftly without delay - this necessitates utmost precision which we can assure you of. Furthermore, we prioritize client satisfaction, and as such, we'll maintain an open line of communication throughout this project. We will keep you updated about every milestone we achieve and listen attentively to any feedback or specific adjustments you may have. With Live Experts LLC on board, you can expect meticulous design, flawless execution and dependable support throughout the lifetime of the product. Let's effectively materialize your wristband idea together. Contact us now! Thanks!
€1,500 EUR in 4 days
8.3
8.3

As an experienced engineer specializing in digital motor control, I have designed and implemented sophisticated control algorithms for various applications, including step motors, BLDC motors, and DC motors. These skills are directly relevant to the Vibrating Wristband project as it involves discreet but precise motor control. My competence in analog design and PCB layout is a further asset, as it ensures that not only do I understand how to make the vibration of the wristband as silent and accurate as possible, but also how to integrate and assemble all elements with precision for optimal performance. In addition to this, my Electronics proficiency blends well with other demands of the project such as rechargeable battery design and precise voltage management ensuring the smooth operation of your device throughout its use. Moreover, my advanced knowledge in embedded systems enables me to effectively tackle the vital firmware portion of this project. With clarity, I will code and explain every part in detail so that you can have complete control over interval ranges and vibration lengths. Lastly, one of my standout traits is being adept at working within short turnaround times without compromising quality. I appreciate your desire to iterate quickly on this project and will meet these demands while producing top-notch outcomes. With these skills, experiences and more highlighting why I’m the best fit for this project shirt
€1,250 EUR in 40 days
7.4
7.4

Hello, This is a compact wearable design where responsiveness and power control are critical—especially instant motor cut-off and low-noise vibration. I propose using an ultra-low-power MCU such as nRF52 (Nordic) or ATtiny1616, depending on size and cost target. For quiet operation, I recommend an LRA (Linear Resonant Actuator) with a driver like DRV2605 for precise, smooth haptics. Firmware will implement two modes: random interval (configurable ranges) and manual trigger with immediate interrupt-based stop. Button input will be hardware-debounced with priority interrupt to guarantee zero-latency response. Power system will use a small Li-Po battery with USB-C charging (TP4056 or integrated PMIC). PCB will be ultra-compact, optimized for wearable form factor and silicone strap insert. Deliverables include schematic, BOM, PCB, enclosure (STEP/STL), firmware, and assembled prototype with documentation. Estimated timeline: 1 week design, 1 week prototype build and testing. Regards, Muhammad Usman Embedded & PCB Design Engineer
€1,125 EUR in 7 days
6.7
6.7

can handle this project efficiently using either an Arduino Nano or an STM32, both of which are suitable and cost-effective solutions for manually controlling the vibration motor. I will support you with both the hardware and firmware development, and deliver a fully tested and verified design that meets your requirements. Looking forward to your response. Regards, Muhammad Adeel
€750 EUR in 7 days
6.6
6.6

With a vast and proficient skillset encompassing Electronics, PCB Layout, Prototyping, as well as being well-versed in C Programming, Microcontroller, and Data Analysis, my team and I are not only capable of building your Silent Vibration Wristband Prototype but doing so with excellence. We have an extensive background developing various electronic systems including wearable technology and still manage to maintain a firm grip on cost-effective designs without compromising quality. Our experience with different microcontrollers (such as Arduino) enforces our ability to meet potent standards. By incorporating the requested Random mode functionality along with its Manual counterpart in your firmware programming job, we'll ensure the vibrations are delivered precisely according to your needs while keeping the microcontroller efforts minimal. Moreover, thanks to our hands-on understanding of Embedded Systems combined with our adeptness at Debugging, we guarantee an immediate and noiseless halt in vibrations once the button is pressed again without any residual buzzing.
€1,500 EUR in 30 days
6.6
6.6

As a freelancer with extensive experience in hardware and IoT, I can assure you of my ability to deliver precisely what you're looking for with your Silent Vibration Wristband Prototype project. My expertise in Arduino, Electronics, PCB Layout, and Prototyping is perfectly aligned with your requirements. Having worked on numerous similar projects utilizing raspberry pi, ESP32, and more importantly microcontrollers highlights that I am well equipped technically for the task. Through my company ZAWN Tech, founded back in 2014, we've successfully managed diverse projects enabling us to be versatile and quick to adapt to evolving project requirements. We comprehend the value of seamless operations and your outlined needs have been tackled competently by us before. Be it the tangible deliverables of schematic, parts list or firmware along with pertinent assembly details or intangible aspects like ease of handling; our experienced developers and engineers ensure precise calibration between quality and consistency in project outcomes. Moreover, our dedication to open communication ensures that we fully understand your vision and are able to translate it into reality without any compromises. We are confident we can provide not just a functional wristband, but also an easily adjustable user interface for the firmware allowing you to edit interval ranges and vibration length effortlessly.
€1,500 EUR in 7 days
5.9
5.9

Hi, how are you doing? I went through your project description and I can help you in your project. your project requirements perfectly match my expertise. 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: Antenna Design (CST, HFSS) Embedded C Programming. VHDL/Verilog, Quartus/Vivado, LabVIEW/ Multisim/PSPICE/VLSI MATLAB/SIMULINK 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.
€1,125 EUR in 7 days
6.0
6.0

Hi, I can develop this silent vibration wristband prototype with precise control and minimal noise. Components MCU: ultra-low-power nRF52 or ATtiny (compact, reliable, easy firmware tuning) Motor: low-noise coin vibration motor with driver transistor for instant on/off response Control: single tactile button with debounce logic for immediate cutoff (no residual vibration) Power: rechargeable Li-ion with USB-C charging (TP4056 or similar) - Manual mode: button triggers vibration instantly - Random mode: firmware-controlled irregular intervals (fully adjustable) - Clean stop behavior with no lag or buzzing Deliverables Schematic, BOM, and enclosure insert (STEP/STL) Well-commented firmware (easy to adjust timing/strength) Fully assembled prototype + assembly documentation Timeline: 2–3 weeks Best regards
€1,200 EUR in 15 days
5.6
5.6

HI, KINDLY READ THROUGH MY PROPOSAL I will deliver a compact silicone wristband with ultra-quiet vibration motor, single unobtrusive button for instant start/stop, random & manual modes, USB-C rechargeable LiPo, fully assembled prototype plus all source files optimized for size, cost and ease of assembly. MY APPROACH ✅ Phase 1: Proposed MCU = ATTiny85 (tiny/low-power), quiet 10mm coin vibration motor; schematic, BOM, 3D enclosure insert (4 days). ✅ Phase 2: Firmware with editable intervals/vibration length + button logic, full assembly & testing (7 days). ✅ Provide 3D review and milestone updates. RELEVANT PROJECTS • Discreet haptic vibration wristband (single-button random/manual modes, rechargeable, silicone strap — delivered functional prototype on time) DELIVERABLES • Circuit schematic, parts list, 3D files for enclosure insert • Fully commented firmware (editable intervals & duration) • One assembled USB-C rechargeable prototype + step-by-step assembly photos QUESTIONS 1. Preferred strap size or button position? 2. Target vibration length/range? 3. When for Phase 1 review? Ready to start immediately.
€780 EUR in 5 days
5.7
5.7

Hi, I’m an Embedded Hardware engineer with 10+ years of experience designing low-power wearable electronics and compact PCB systems. I have delivered 50+ hardware prototypes including wrist-worn and battery-powered devices, achieving stable real-time control with sub-10 ms response latency and optimized power consumption for multi-day operation. Approach ✅ I will select a low-power MCU (e.g., nRF52 or STM32L0) with interrupt-driven GPIO for immediate button response and deterministic motor cutoff. ✅ I will design a compact PCB using a coin vibration motor or LRA with a low-noise driver, ensuring minimal acoustic output and controlled amplitude. ✅ I will implement firmware with two modes (manual/random) using timer-based scheduling and pseudo-random interval generation with configurable parameters. ✅ I will integrate a Li-Po battery with USB-C charging (TP4056 or similar), and design a compact enclosure insert compatible with a silicone wristband. Questions ✅ I need to confirm preferred vibration type: ERM coin motor vs LRA (trade-off between noise, control, and cost). ✅ I need to know target battery life and size constraints to optimize battery capacity and power profile. ✅ I need clarification on acceptable vibration strength range and whether PWM control or fixed intensity is preferred. ✅ I need confirmation on wristband dimensions or if I should select a standard off-the-shelf silicone band. Best, Yaroslav
€1,350 EUR in 7 days
5.0
5.0

Hi, I've reviewed your requirements for the vibrating wristband. Since I’ve been working on this platform since 2019 and have a solid background in PCB design and 3D modeling (as you can see in my portfolio), I can handle both the electronics and the enclosure design for this project. I’ll focus on keeping the device compact enough to fit a standard silicone band while ensuring the "zero-delay" vibration you mentioned. For the hardware, I’m thinking of a low-profile coin motor and a small Li-Po battery with USB-C charging. Once the design is ready, I will assemble the prototype, take step-by-step photos, and ship the technical files (Schematics, 3D files, and commented firmware) to you. Feel free to check my previous work and ratings.
€1,220 EUR in 25 days
4.9
4.9

⭐⭐⭐⭐⭐ I can build this into a clean, compact prototype that feels discreet and responds instantly. Proposed design: • MCU: ultra-low-power (e.g., nRF52 or ATtiny-class) • Motor: coin ERM (quiet profile) or LRA (quieter, more refined feel) • Driver: haptic driver with active braking (critical for instant stop) • Power: small LiPo + USB-C charger IC • UI: single tactile button (short/long press to toggle modes) Firmware behavior: • Manual mode → press = vibrate, release/press again = immediate stop • Random mode → pseudo-random intervals (editable ranges) • Clean debounce + no residual motor spin Milestones: Schematic + component selection PCB + enclosure insert (fits silicone band) Firmware (commented, easy to tweak) Prototype assembly + test + photos You’ll get files, code, and a ready-to-use unit. Quick question: do you prefer ultra-subtle vibration (LRA) or slightly stronger but still quiet (ERM)?
€1,125 EUR in 7 days
4.5
4.5

I read your spec for the silent vibration wristband. I specialize in miniaturized mechatronics and custom PCB layouts, and I need to point out a major mechanical trap regarding your "no residual buzzing" requirement. Most cheap wearables use ERM (Eccentric Rotating Mass) motors. When you cut power to an ERM, the internal weight keeps spinning due to momentum, creating a sloppy residual buzz. It is physically impossible to stop them instantly. To achieve the crisp, immediate cut-off you need, I will use an LRA (Linear Resonant Actuator) paired with a dedicated haptic driver IC like the Texas Instruments DRV2605L. This chip uses "active braking"—it briefly drives the motor out of phase to kill the momentum instantly. My Proposed Stack & Milestones: MCU: Microchip ATtiny1616 or SAMD21 (tiny footprint, extremely low power, and fully Arduino IDE compatible so you can easily edit the code). Motor & Driver: 8mm LRA driven by a DRV2605L for active braking. Power: Miniature LiPo with a linear charging IC (MCP73831) and standard USB-C CC pull-downs so smart chargers actually power it. Milestone 1: Hardware architecture, Schematic, and PCB Layout. Milestone 2: Firmware development (Manual/Random modes with active braking logic) and 3D enclosure insert design. Milestone 3: PCB fabrication, physical assembly, testing, and shipping the prototype via DHL. I look forward to the opportunity to connect and appreciate your review. Abid Shahriar
€1,125 EUR in 25 days
4.4
4.4

If we work together, we can finish this job quickly and successfully. We can also develop future projects together. The subject you mentioned requires specialized expertise. We will discuss and work together step-by-step to tailor the project to your needs.
€950 EUR in 20 days
4.6
4.6

Best Wearable Electronics Design Expert! ⭐⭐⭐⭐⭐ Dear Client, The biggest risk in this project is not building the wristband—it’s delivering a device that technically vibrates but produces noticeable noise, delayed responses, or inconsistent behavior that breaks the intended subtle user experience. That is where wearable electronics design judgment matters. I would approach this by: 1. selecting a low-noise vibration motor (ERM/LRA) and driver circuitry optimized for silent, smooth operation in a compact wearable form 2. designing a minimal and efficient circuit with a suitable microcontroller, ensuring instant response to button input with zero latency cutoff 3. integrating a compact rechargeable power system (USB-C) with safe charging and stable power delivery 4. validating the prototype for silent operation, responsiveness, and consistent behavior through real-use testing This ensures the device is not just functional, but quiet, responsive, and comfortable for real wearable use. ✅Two quick questions: 1. Do you prefer an ultra-compact design even if it reduces battery life, or a slightly larger size for longer usage? 2. Should the random mode follow a specific interval range or remain fully adjustable in firmware? If you message me, I can outline a complete prototype strategy, including component selection and build timeline. Best regards, Prat PCB Must Innovations
€1,000 EUR in 7 days
6.4
6.4

With a diversified skillset that stretches into the realm of Electronics and PCB Layout, I believe I am the perfect match for your project. The successful creation of your silicone wristband prototype requires great attention to detail and expert knowledge in electronics integration - both of which I have acquired through my years in this field. Your specific requirements including the unique mode functionality, quiet vibrations and speed of the button response will need professional expertise that can only come from hands-on experience. While my profile contains a range of different skills, it is important to note that electronics and circuit design are not only one of my specialties but also backed by many successful projects. As an architect, designing comfortable structures is more than just aesthetics. It involves a detailed understanding of user experience and how small but crucial elements like quiet vibrations can enhance the usability. This directly translates into meeting your requirement for an unobtrusive yet functional wristband.
€750 EUR in 3 days
4.7
4.7

Hello, I can build your silicone vibration wristband prototype within your requirements and budget range. My approach: Microcontroller: Low-power STM32 or ESP32 variant (depending on size vs flexibility needs) Vibration motor: Quiet LRA actuator with a driver IC for fast, silent start/stop response Controls: Single-button input with immediate toggle for manual mode + random vibration mode in firmware Power: Rechargeable LiPo battery with USB-C charging Deliverables: Circuit schematic + BOM PCB + simple 3D printable enclosure insert Clean, commented firmware (editable timing and vibration settings) Fully assembled working prototype Basic assembly documentation/photos Timeline: Design + firmware: ~1 week Prototype build: ~1–2 weeks after parts I can iterate quickly based on your feedback and optimize size/comfort after the first working unit. Let me know if you’d like me to proceed.
€1,125 EUR in 7 days
4.2
4.2

Hi, I can design and prototype your silicone wristband vibration device. I’ll provide: Schematic + BOM Firmware for manual and random vibration modes Instant stop/start button control 3D enclosure files One assembled rechargeable prototype (USB-C preferred) I can use a compact microcontroller and quiet coin vibration motor for a small, low-cost build. Ready to start immediately.
€1,000 EUR in 3 days
2.8
2.8

Hello I will deliver a compact, low-noise vibration wristband by optimizing motor drive control and ultra-responsive firmware for instant on/off behavior. Confirmations • Single-button control with interrupt-based firmware → zero latency stop (no residual vibration) • Dual modes: – Random: pseudo-random interval generator (configurable range) – Manual: direct trigger with immediate cutoff • Quiet operation via PWM ramping + motor selection tuning • USB-C rechargeable LiPo system with safe charging IC • Silicone strap using off-the-shelf band + custom internal insert Technical Approach • MCU: ultra-low-power MCU (nRF52 or ATtiny series depending on size vs flexibility) • Motor: coin-type ERM (optimized for low acoustic noise) or LRA (if tighter control needed) • Driver: low-side MOSFET with fast discharge path → eliminates residual buzzing • Power: LiPo + USB-C charger (TP4056-class or integrated PMIC) • Mechanical: compact 3D-printed insert (snap-fit into silicone band) Delivery / Scope • Schematic + BOM (cost-optimized, easy sourcing) • 3D enclosure insert (STEP + STL) • Fully commented firmware (timing + vibration parameters adjustable) • 1 assembled prototype (USB-C charging) • Step-by-step assembly documentation with photos Quick question: do you prefer absolute silence (LRA) or lower cost and simplicity (ERM)? Regards, Nichita
€1,000 EUR in 7 days
2.9
2.9

Hi, I’m very interested in developing your low-profile vibrating silicone wristband. Your requirements—instant response, quiet operation, and simple user control—are well aligned with my experience in compact embedded devices and wearable electronics. Proposed approach Microcontroller: Ultra-low-power MCU (e.g., Nordic nRF52 or ATtiny series) for fast response and compact design Motor: Low-noise coin (pancake) vibration motor with PWM control for quiet, adjustable intensity Power: Rechargeable Li-Po with USB-C charging IC (e.g., TP4056 or integrated solution) Control: Single tactile button with interrupt-driven firmware for immediate start/stop (no lag) Functionality Manual mode: press = vibrate instantly, release/press again = immediate stop Random mode: firmware generates pseudo-random intervals and durations (fully configurable in code) Clean motor cutoff to ensure no residual buzzing Deliverables Schematic, BOM, and compact PCB design Firmware (well-commented) for easy adjustment of timing parameters 3D enclosure insert for integration into a silicone band Fully assembled prototype (USB-C rechargeable) + step-by-step assembly documentation Estimated timeline Concept & component selection: 2–3 days PCB + firmware development: 5–7 days Prototype build & testing: 5–7 days I focus on reliable, user-friendly designs with clean hardware/firmware integration. Best regards,
€2,500 EUR in 25 days
1.1
1.1

Bremervörde, Germany
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