BLE Wearable PCB & Firmware

@Mahihassi

As a seasoned Electrical Engineer and reliable problem-solver, I believe I possess the ideal skill set to tackle your BLE Wearable PCB & Firmware project. Specializing in IoT product engineering, I've received thorough training in everything from firmware development to PCB design. My expertise includes working with Microcontrollers, specifically Nordic/Dialog/TI BLE stacks which you've identified as essential for this project. What sets me apart is my practical approach to low-power RF design and building ultra-small wearables. In past projects, I've honed my power-management skills by significantly extending battery life in stringent conditions. These experiences have demonstrated my keen understanding of clean power budgeting, a crucial factor for this venture. Throughout my career, I've embraced efficient communication and quick iterations, qualities that are pivotal for meeting your desired timeline. This, coupled with my unwavering commitment to delivering complete and well-documented projects aligns perfectly with your needs. I'm ready to hit those important marks – let's start cutting copper!

@iamhamzazaki

Hi there, Do you have specific requirements for the low-power BLE SoC? I’ve worked on several ultra-small wearables, focusing on low-power RF designs and efficient battery management. I can create a detailed schematic and a compact multi-layer PCB layout to fit your dimensions and requirements. My approach involves optimizing firmware to ensure it connects and pushes updates while maintaining excellent power efficiency. With my background in Nordic and TI BLE stacks, I’ve consistently achieved longer runtimes with minimal power draw. I can provide a functional prototype along with a thorough test report validating key performance metrics. Communication will be prompt to ensure we meet the one-month timeline effectively. Let’s get started on cutting copper! Best, Hamza

@amelectronics

I am a skilled and reliable Embedded Systems Engineer with over 6 years of hands-on experience in Arduino, ESP32/ESP8266, and microcontroller-based development. I specialize in designing efficient, stable, and scalable embedded solutions, turning ideas into fully functional hardware-software systems. I have a strong background in electronics, sensors, communication protocols (UART, I2C, SPI, MQTT, WiFi, BLE), and real-time embedded systems. My development approach focuses on clean, well-structured, and well-documented firmware, ensuring long-term reliability and easy maintenance. I also provide thorough testing, debugging, and performance optimization, including power efficiency improvements where required. I am a detail-oriented engineer with strong problem-solving skills and extensive experience in hardware debugging and firmware optimization. Beyond technical expertise, I value clear communication, meeting deadlines, and maintaining high client satisfaction. I work closely with clients to fully understand project requirements and deliver high-quality results. Pricing is flexible and can be discussed based on project scope and complexity. I am open to both short-term and long-term projects. Let’s work together to build a professional, reliable, and efficient embedded system for your needs.

@markoa7

As an experienced electronic hardware and firmware engineer, I am confident that I am the perfect candidate to take on your BLE wearable project. My specialization in PCB design has gifted me with a deep understanding of power management, a skillset crucial to meeting the exacting sleep-current targets you've set. Furthermore, my proficiency in RF Design and Analysis will be instrumental for a flawless wireless range and current draw optimization. In addition to my technical expertise, my commitment to effective communication and fast iteration aligns perfectly with your project requirements. My capability to quickly transform concepts into prototypes will ensure the delivery of a rock-solid schematic, PCB layout, and production-ready embedded code within your desired timeframe. As far as BLE technology is concerned, I have ample experience with Nordic/Dialog/TI BLE stacks which proves essential for an integrated power-management strategy. Being situated in Malaysia adds another advantage as it simplifies prototyping logistics. In conclusion, my keen eye for details, practical knowledge of squeezing maximum battery-life from small devices, and vast experience in low-power RF design make me the ideal person for this job. Let's turn your vision into reality!

@majeed219

Hi there, You need a 35x27x5 mm ultra-low-power BLE wearable delivered as a tested prototype within a month; I recently engineered a micro-scale smart ring using Nordic's nRF5340 that achieved exceptional sleep-current targets. --Why me?-- I am an embedded software engineer specializing in high-density PCB design and ultra-low-power Nordic BLE stacks, ensuring your stringent physical dimensions and battery projections are met effortlessly. --My method-- I will design a compact multi-layer board in EasyEDA Pro, pairing an efficient power-management IC with an aggressive firmware sleep strategy to maximize runtime between your 60-second data payloads. --Portfolio-- * Smart Vital Ring — engineered a micro-scale flexible PCB utilizing the nRF5340 for continuous, low-power wireless monitoring. * Remote Caller Node — developed compact MCU firmware handling reliable wireless device wake-ups and strict power states. --Availability-- I will be available according to your timezone. --Post-project support-- Two weeks of dedicated firmware tuning to refine your BLE advertising intervals and power budgets after your initial field testing. --Documentation-- Complete EasyEDA source files, Gerbers, pick-and-place BoM, measured sleep-current charts, and well-commented firmware source code supplied at hand-off. Regards, Majeed

@hayat38402

I am Muhammad Javed, a professional PCB designer and Firmware developer with expertise in embedded systems, electronics prototyping, PCB layout, circuit design, and circuit simulation. I use the following tools for designing • Altium Designer | Proteus • KiCAD | Eagle CAD | EasyEDA • Multisim | LabVIEW • PSpice | LTspice • TinkerCAD As a Design Engineer, I've rich background in following: • Analog and digital circuit design • Embedded C/C++ Programming. • VHDL | Verilog, Quartus | Vivado • Microcontrollers like Arduino, Raspberry Pi, FPGA, AVR, PIC, STM32 and ESP32. • IDEs like Keil MDK V5, ATmel studio and MPLab XC8. • Communication protocols like SPI, I2C, I2S, CAN, RS232, RS485, etc. My PCB design covers the following substances:  Single Sheet to Multi sheet Schematics  Single/double-sided and multi-layer PCBs layouts  Power Supply (SMPS & LDOs)  RF & High-speed layouts  Typical data and control interfaces: UART, USB, SPI, I2C, SDIO etc.  EMC/EMI emission control techniques I will provide you complete PCB design with  Schematics diagram  Gerber files  Take and Place  Bill of materials  Components selection  Assembly layout  3D Design

@manusharma2992

Having collaborated on numerous PCB designs and firmware projects, especially in the realm of wearables, I perfectly understand the tight-knit integration between hardware and software. I am confident in delivering a complete, well-documented schematic and compact PCB design that meets your specific size requirements. My understanding of low-power RF design is also highly relevant to this project, as it will enable me to select the right components and craft an efficient power-management strategy that maximizes battery life while meeting your current targets. On top of all this, my specialization in PCB Design means I am fully equipped to deliver the manufacturing files (Gerber, drill, BoM, pick-and-place) you need to bring this project to fruition. My methodological approach ensures that each task from schematic design to building instructions is carried out meticulously with a keen eye for detail, which will be vital in guaranteeing performance, reliability, and clean power budgeting for your project.

@egerobotics

Hi, I specialize in ultra-compact wearable electronics design — exactly what this project calls for. I have hands-on experience designing sub-40mm PCBs with low-power BLE SoCs (Nordic nRF52 series), integrated battery charger/monitor circuits, and aggressive power management strategies that deliver days of runtime from small LiPo cells. Here is what I will deliver: Schematic & PCB: Full schematic and compact multi-layer PCB layout (35x27x5mm) with a low-power BLE SoC, battery charger/fuel gauge, and all passives — Gerber, drill files, BoM, and pick-and-place files ready for fabrication. Firmware: Clean embedded C firmware with BLE advertising, connection, and 60-second data push cycles. Deep-sleep modes carefully implemented to minimize idle current and maximize battery life. Power Management: Component selection optimized for low quiescent current, dynamic power state machine, and a realistic battery-life projection backed by measured data. Prototype & Test Report: One assembled and tested functional prototype with a detailed test report covering BLE range, current draw in each power mode, and confirmed 1-minute data transfer reliability. I have fast iteration cycles and can ship the prototype to Malaysia efficiently. Let's discuss your sensor and data requirements so I can start immediately. Looking forward to working with you!

@TingWang250617

Hi, Your wearable concept is a strong fit for my background in ultra-low-power BLE devices. I can deliver the full first milestone: schematic, compact multilayer PCB (35 x 27 x 5 mm), and production-ready firmware focused on reliability and power efficiency. Deliverables: - Schematic (PDF + source) and compact PCB layout with defined stack-up - BLE firmware that advertises, connects, and sends data every 60s with stable reconnect logic - Power-management design: low-leakage parts, sleep/active state control, charger/fuel monitoring, and battery-life estimate - Manufacturing files: Gerber, drill, BOM, and pick-and-place - Firmware source, build steps, and concise design notes for future revisions I have practical experience with small-form-factor BLE hardware and low-power firmware (Nordic/TI-style workflows), including projects where sleep current and battery runtime were critical. I can support a one-month prototype timeline with fast communication and quick iteration. Shipping/logistics to Malaysia can also be supported. If you’d like, I can begin with architecture + power budget immediately. Kind regards, Ting

@AlexandrGergel

Greetings, I can design a compact wearable around a low power BLE chip with a clean schematic, space efficient multi layer PCB, and stable firmware that wakes, transfers data every 60 seconds, and returns to deep sleep with careful power control. I will focus on battery life, RF reliability, and production readiness from the start, including charger and monitor design, current measurement in each mode, and a tested prototype with clear results. I have hands on experience with small embedded boards, BLE firmware, and power sensitive designs where reliable runtime and solid bring up matter more than cosmetic polish. Sincerely, Oleksandr

@abdurRafiqM

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 so we can discuss further on your project I look Forward to working with you. Best Regards, Abdur-Rafiq

@electronicsdone

Best BLE Wearable PCB Design Expert! ⭐⭐⭐⭐⭐ Dear Client, Before I propose the optimal hardware and architecture, could you please confirm one key point: do you already have a preferred BLE SoC platform (such as Nordic, TI, or Dialog), or should I select the most suitable option based on your power and size constraints? The reason I ask is that this project is not just about “fitting components into a small PCB.” The real success factor lies in tightly integrating RF design, power management, and PCB layout so the wearable achieves reliable BLE communication while maintaining ultra-low power consumption and stable performance within the compact form factor. That is where I can help. I can support this from the embedded hardware perspective by designing a compact multi-layer PCB, selecting an optimal low-power BLE SoC, and implementing an efficient power architecture that ensures consistent operation and long battery life. ✅A few quick questions from my side: 1. Do you have a preferred BLE chipset family, or should I recommend one based on your requirements? 2. What is the target battery type and capacity for this wearable? 3. Are there any specific sensors or peripherals to be integrated at this stage? Once these are clarified, the design and development process becomes much more streamlined, efficient, and lower risk. Best regards, Prat PCB Must Innovations

@dustins0

Hi, This is exactly the kind of low-power, space-constrained design I specialize in. I’ve developed compact BLE devices using Nordic/TI SoCs where sleep current and battery life were critical. For your 35 × 27 × 5 mm wearable, I can deliver a tightly integrated, production-ready design with careful RF layout, antenna tuning, and clean power architecture. I’ll handle: Full schematic + multilayer PCB optimized for size, RF performance, and low leakage BLE firmware (advertise/connect/update every 60s) with aggressive sleep-state management Power strategy including regulator selection, battery charging/monitoring, and realistic battery-life modeling Component selection focused on availability and manufacturing I also validate designs properly—measuring current in each state, verifying BLE range, and documenting results clearly. You’ll get complete manufacturing files, firmware, and concise test data. I work quickly and communicate clearly, which fits your one-month prototype goal. I can also support iteration after initial bring-up if needed. If you want this done right the first time—especially on power budgeting and RF layout—let’s get started. Best regards, Dustin

@abids98

Hi there, Designing a 35x27mm BLE wearable requires extreme power budgeting. The real danger here is the Peak Current Brownout Trap. Tiny batteries have high internal resistance. When a BLE SoC wakes up to transmit every 60s, it pulls a sudden 15mA RF burst. This causes the battery voltage to instantly sag below the MCU’s brownout threshold, dropping the connection. I am bidding specifically as your dedicated Hardware & RF Expert. Because my focus is on architecting a flawless PCB, I am keeping the firmware cost extremely low. I will write the basic embedded code needed to validate the 60s broadcast and deep-sleep states, but my primary value is ensuring the physical board is perfect. Here is my execution plan: Hardware & RF Layout: I will design the core around an ultra-low-power Nordic nRF52 on a 4-layer PCB strictly within your 35x27mm limit, integrating the battery charging IC, antenna matching, and optimized DC-DC routing. Direct-to-Malaysia Prototyping: To save you time and middleman shipping costs, I will format the manufacturing package so you can order the fully assembled prototype directly from JLCPCB to your door in Malaysia in just a few days. Turnkey Files: I will deliver the full JLCPCB package (Gerbers, BOM, CPL), calculated power profiles, and the baseline firmware. Will this use a small rechargeable LiPo pouch or a disposable coin cell? I look forward to the opportunity to connect and appreciate your review.

@jakubf41

Hello, I can take this from concept to a tested wearable prototype with a strong focus on ultra-low power and compact layout. My approach: -Use a proven low-power BLE SoC (Nordic nRF52 series) with optimized sleep modes (<10 µA standby achievable). -Design a 4-layer compact PCB (35×27×5 mm) with proper RF layout (antenna matching, ground planes, impedance control). -Implement efficient power architecture (LiPo charging, fuel monitoring, low-IQ regulators). -Firmware optimized for 60 s interval transmission, deep sleep between events, and minimal active time. -Careful power budgeting + measurement validation to maximize battery life. What you’ll get: - Schematic + PCB (production-ready Gerbers, stack-up) - Clean, documented BLE firmware (advertise, connect, periodic data push) - Full BOM + pick-and-place - Battery life estimation + optimization notes - Tested prototype + report (current consumption, BLE range, stability) I have hands-on experience with BLE devices, low-power optimization, and compact PCB design, including RF tuning and real current measurements—not just simulations. I can move fast and iterate quickly to meet your ~1 month timeline. Let’s discuss battery size and enclosure constraints to finalize architecture.

@leonidye

Hi, I have extensive experience in redesigning architectural and construction drawings, particularly in roofing materials, and I can deliver modernized designs with improved accuracy, aesthetic elements, and full compliance with industry regulations. My expertise in AutoCAD, Revit, and CAD/CAM ensures that I will create precise, professional designs that meet your structural requirements and align with the latest standards. ✅ I can work for you perfectly — expert here, and I am ready to start immediately ✅. I will provide samples of past similar projects for your reference. Best regards. Leonid Y.

@Webslinger01

I have strong experience working on ultra-compact wearable devices, low-power BLE systems, and multi-layer PCB design. I will take your concept and deliver a production-ready hardware + firmware solution within your timeline. I also have experience handling prototype builds and fast shipping internationally, so I can professionally manage quick turnaround and reliable delivery of working prototypes. My Deliverables: • Complete schematic and compact multi-layer PCB design • Optimized low-power BLE firmware • Power management strategy and battery life estimation • Gerber, BOM, pick-and-place, and manufacturing files • Working prototype and test report • Clean documentation for future revisions I’m ready to start and can ensure a compact, efficient, and production-ready solution.

@soniaer987

Hi, 35×27×5mm no-screen BLE wearable with aggressive power budgeting — this is exactly the kind of ultra-compact low-power design I specialise in. For a 60-second update interval the power architecture is straightforward to optimise: — nRF52810 (Nordic) — smallest die in the nRF52 family, QFN-32, fits the footprint comfortably alongside charger and passives on a 4-layer board — System-off sleep: ~0.4µA, RTC wakeup every 60s — with a 150mAh LiPo this gives weeks of runtime between charges — BLE connection interval tuned to 60s notify cycle: connect, push data, disconnect, back to sleep — total radio-on time <500ms per cycle — nPM1100 or MCP73831 for LiPo charge, MAX17048 fuel gauge for battery monitor over I²C PCB: KiCad 4-layer (signal / GND / PWR / signal), chip antenna keepout on top layer, all passives 0402, JLCPCB-ready BOM Deliverables: schematic PDF + KiCad source, Gerbers + BOM + pick-and-place, NimBLE firmware source (ESP-IDF or nRF SDK), test report with current measurements in each power state and BLE range notes. Prototype can be shipped to Malaysia via DHL within the one-month window. One question: what data payload is the wearable transmitting every 60 seconds — sensor readings, a fixed ID, or something else?

@anilptk

Dear Sir/Madam, I am writing to express my interest in your BLE Wearable PCB & Firmware project. With a strong background in Electronics, Microcontroller, Electrical Engineering, PCB Layout, Embedded Systems, and Signal Processing, I am confident in my ability to deliver high-quality results efficiently. My expertise in designing compact PCB layouts, selecting low-power components, and implementing power-management strategies align well with the requirements of your project. I have extensive experience in developing firmware for BLE devices and optimizing power consumption to meet performance targets. I am dedicated to efficient communication and fast iteration, ensuring that the prototype is tested and documented within the specified timeline. My location in Malaysia enables me to simplify logistics for prototype testing and delivery. I am excited about the opportunity to work