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What You Actually Need (No Extras, No BS) You need one working jersey prototype that proves the concept. That’s it. The prototype must: Physically feel like a normal jersey Comfortable Flexible Washable (or at least water-resistant with removable electronics) No bulky or intrusive hardware Light up with programmable light patterns LED array (numbers, logo, panels, or pixel zones) Multiple patterns (static, pulse, wave, chase, etc.) Bright enough for stadium visibility, but not rigid or hot Connect to a phone Bluetooth (BLE is fine) Phone can: Turn jersey on/off Select light patterns Adjust brightness / color Your internal team handles the app — freelancer only needs: Firmware Bluetooth protocol / commands Documentation for your app team What You Do NOT Need From the Freelancer This is critical to state explicitly. ❌ No app UI ❌ No backend ❌ No AI ❌ No cloud ❌ No stadium mesh ❌ No mass-production tooling ❌ No marketing fluff Just: Hardware + firmware + physical jersey integration Freelancer Scope (This Is the Job) 1. Hardware Design They must design: Small rigid PCB (not flexible) LED driver + microcontroller BLE module Battery management Magnetic charging contacts (sealed) On-board power button (or magnetic reed switch) Key constraints Fully sealed electronics (silicone or TPU encapsulation) Sweat + wash resistant Low profile, lightweight Battery sized for 2–4 hours active runtime 2. LED System LED type: addressable RGB (WS2812 / SK6812 or equivalent) LED layout: Numbers Logo Or pixel zones sewn/laminated into jersey Wiring routed safely and flex-relieved Replaceable or serviceable if possible 3. Jersey + Textile Integration They must: Select appropriate jersey fabric Integrate LEDs without stiffness Hide wiring Design mounting location for electronics module Ensure comfort + breathability This can be: Sewn channels Laminated layers Removable electronics pouch 4. Firmware (Critical) They must deliver: Stable BLE firmware Command set like: SET_PATTERN SET_COLOR SET_BRIGHTNESS POWER_ON / OFF Documentation so your team plugs it into your app No fancy UI — just rock-solid firmware 5. Deliverables (Non-Negotiable) You want these in writing: Physical 1 fully working jersey prototype 1 spare electronics module (if possible) Engineering PCB design files BOM Firmware source code BLE protocol documentation Assembly instructions Testing Battery runtime estimate Heat output Wash / water resistance notes What Kind of Freelancer You’re Actually Looking For Not “maker-space hobbyist.” You want: Wearable electronics engineer Experience with: LED wearables BLE devices Textile integration Consumer electronics prototyping Good keywords: “Wearable electronics” “BLE firmware” “LED textiles” “Smart clothing prototype” Timeline Reality (Reasonable) Design: 2–3 weeks Hardware build: 2–3 weeks Integration + testing: 2 weeks Total: ~6–8 weeks for a legit prototype Budget Reality (So You Don’t Get Garbage) $5-$10k is the real range for someone competent Under that → expect fragile, flaky, or half-working Over that → they’re trying to build a product, not a prototype
Project ID: 40173747
21 proposals
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21 freelancers are bidding on average $7,607 USD for this job

With over a decade of experience in electrical engineering and an ingrained curiosity for cutting-edge wearable technologies, I am uniquely qualified to bring your Dynamic LED Smart Jersey PROTOTYPE to life. My mastery over microcontrollers and embedded systems paired with my familiarity with BLE devices make me perfectly suited for your project. I've developed the necessary expertise in LED wearables and textile integration for me to hit the ground running, ensuring swift completion of your project while maintaining a high-standard of quality. Not only have I successfully designed small rigid PCB's (much like what you require), but I have extensive knowledge in addressing critical issues like sweat and wash resistance, low profile weight while ensuring fabric comfort. My state-of-the-art hardware design, including components such as LED driver and microcontroller, BLE module, battery management, magnetic charging contacts and on-board power button will be specifically tailored keeping in mind the constraints like silicone encapsulation, lightweight fabric among other things as requested. Equally important to note is my proficiency with Firmware Development. When we end our collaboration, you will receive not just a sturdy BLE Firmware but a thorough documentation even your internal team can easily plug it into your app. -sardar (CEO MHTechFusion)
$10,000 USD in 120 days
8.2
8.2

Hello, As an electrical engineer with a passion for wearable technology and consumer electronics prototyping, I believe I am the perfect fit for your project. I have extensive experience working with LED wearables and BLE devices, making me highly proficient in precisely what you need - hardware design, LED system implementation, and firmware development. My attention to detail and knack for designing precise circuits will ensure that your prototype feels, looks, and functions just like a normal jersey without any of the bulk or intrusive hardware. Moreover, fabric choice is a crucial aspect of creating comfortable wearable technology, and by leveraging my expertise in textile integration, I can guarantee that your jersey will maintain its comfort and breathability whilst seamlessly integrating the LEDs. Additionally, with my deep knowledge of BLE, I will provide a stable and reliable iOS/Android app compatible firmware commanding set for turning jersey on/off, selecting patterns, adjusting brightness/color. Over the years, I have worked on similar projects demanding the combination of light electronics (like PCBs) and textiles in user-friendly ways without compromising performance or quality. In fact, my team at Live Experts is known for delivering high-quality work within timelines and budgets. Thus, by entrusting your Dynamic LED Smart Jersey Prototype to me and my team at Live Experts®, you are guaranteed not just a legitimate Thanks!
$10,000 USD in 5 days
7.3
7.3

With a strong background in multiple facets of electrical engineering and over nine years of professional experience, I am confident that I have the skills necessary to execute this project successfully. I have specific experience with digital motor control, analog design, electronic design, power electronics and PCB design, all of which are directly relevant to your requirements for this LED Smart Jersey prototype. I've previously apply my skills in building products similar to what you require; my knowledge about hardware design, LED system and integration, textile integration, as well as my understanding around firmware matched everything relating to the project description. Additionally, my familiarity with wearable electronics, BLE firmware, LED textiles and smart clothing prototypes makes me well-equipped for this nuanced task. Another aspect setting me apart is my meticulous approach towards designing rock-solid firmware- an essential requirement of the project according to your specifications. My goal here would be a working prototype that fully encompasses your needs while ensuring comfort, breathability and flexibility like any other normal jersey. Naming only one aspect if selected was difficult but as a Wearable Electronics Engineer who can provide high quality work within 6-8 weeks timeline I am definitely your go-to-guy for this job.
$7,500 USD in 40 days
7.4
7.4

Hi, This is very clear and well scoped, which I appreciate. I’m an embedded hardware and firmware engineer with experience in wearable electronics, BLE devices, low power design, and LED-based systems. I can handle the full prototype scope exactly as described, without adding unnecessary extras. I can deliver: • A sealed, low-profile electronics module with MCU, BLE, LED drivers, battery management, and magnetic charging • Addressable RGB LED integration designed for comfort, flexibility, and stadium visibility • Rock-solid BLE firmware with a simple, documented command protocol for your app team • Textile integration support including LED placement, wiring strategy, and removable electronics design • Full deliverables: PCB files, BOM, firmware source, BLE protocol documentation, assembly and testing notes I agree with the 6–8 week timeline and the $5k–$10k budget range for a reliable, production-quality prototype. Happy to discuss LED layout options, battery sizing, and enclosure approach to get this right on the first build.
$9,950 USD in 49 days
5.8
5.8

With over a decade of experience and 200+ recommendations, ZAWN Tech is the ideal candidate for your Dynamic LED Smart Jersey PROTOTYPE project. While our core expertise may not align exactly with this specific project, the skills I can bring to the table in Bluetooth Low Energy (BLE) and overall electrical engineering are paramount in this task. I have a deep understanding of wearable electronics and consumer electronics prototyping, both characteristics your desired freelancer must possess. Let's talk about BLE firmware; stability is key when it comes to any electronic integration, and that's exactly what I can deliver. My ability to create a robust command set – SET_PATTERN, SET_COLOR, SET_BRIGHTNESS, POWER_ON / OFF – without sacrificing functionality will give your app team full control without overwhelming them with excessive UI or backend necessities. Finally, let's address any concerns you may have over timeline and budget. The timeline you laid out is completely reasonable for delivering a genuine prototype. And as for the budget, I assure you that my quote aligns perfectly with expectations while promising a final product that would be anything but "garbage". With each project we undertake comes an unwavering commitment to going above and beyond to meet client needs – that's the ZAWN Tech promise.
$7,500 USD in 30 days
5.4
5.4

Hello Greetings, After reviewing your project description, I am confident and excited to work on this project for ayou. However, I have some crucial points and questions to clarify. Please leave a message in the cahat so we can discuss this, and I can share my recent work that is similar to your requirements. I look forward to hearing from you soon. Yilmaz S. Founder | UIX Web Studioa
$7,500 USD in 7 days
4.5
4.5

As an electrical engineer and technology enthusiast with a strong focus on wearable electronics, I am thrilled by the prospect of bringing your Dynamic LED Smart Jersey prototype to life. I have extensive experience in creating functional yet comfortable designs while working with powerful hardware. My knowledge in BLE firmware is perfect for developing reliable and stable electrical systems to ensure seamless communication with the accompanying app. My proficient skills in LED systems would allow for creating programmable, addressable RGB patterns that can be customized through your app per your specifications. Additionally, I understand the significance of maintaining a lightweight design without compromising on functionality and comfort levels. Moreover, not only do I grasp the technical aspects of the project, but I also appreciate its timeline reality and budget constraints. Having worked on similar projects, I understand the importance of deadlines without undermining quality. In alignment with this, I'd strive to deliver tangible outputs including a fully functional jersey prototype along with a spare electronics module if possible, PCB design files, BOMs and detailed documentation for smooth integration into your app. Accepting your budget range as both realistic and adequate for quality work, I'm ready to dedicate my time and efforts to creating a top-notch smart jersey that exceeds your expectations.
$7,500 USD in 7 days
0.0
0.0

Hi, how are you? I’ve built BLE-enabled wearable electronics prototypes using addressable RGB LEDs (WS2812/SK6812), sealed battery-powered modules, and firmware-first command protocols for app teams. You need a single, stadium-visible jersey prototype that feels like normal sportswear while proving reliable lighting patterns, safe power, and wash-resilient integration—without wasting time on app/UI or “extra” features. I’ll design the compact PCB + power/charging, integrate LED zones with comfort-focused routing, deliver stable BLE firmware with a clear command set, and document everything for your team. Let’s discuss your project in detail. Thank you. Edgova IT Solutions
$7,500 USD in 7 days
0.0
0.0

Hello, I can deliver exactly one working smart jersey prototype that proves the concept—no extras, no fluff. I’ll handle the hardware, firmware, and textile integration so it feels like a normal jersey: comfortable, flexible, lightweight, and washable (with sealed or removable electronics), while delivering bright, programmable LED patterns visible in a stadium setting. I’ll design a compact rigid PCB with MCU, BLE, LED drivers, battery management, sealed magnetic charging, and a low-profile power switch, paired with addressable RGB LEDs integrated cleanly into the fabric (numbers/logo/zones) with hidden, strain-relieved wiring. Firmware will expose a simple, documented BLE command set (on/off, pattern, color, brightness) so your app team can plug in immediately—no app work on my side. You’ll receive the physical prototype plus full engineering handoff: PCB files, BOM, firmware source, BLE protocol docs, assembly notes, and basic testing results (runtime, heat, wash resistance).
$5,000 USD in 3 days
0.0
0.0

Herriman, United States
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