Compact Hi-Fi Bluetooth Audio Player

@tshibsamuel477

Hi there, I’ve carefully read your brief and can deliver this compact audio player—faster than expected—thanks to my background in mechatronics and nearly five years designing low-power consumer devices and PCBs. I’ve worked with all components and features you’ve listed: ESP32-class audio pipelines, microSD/FAT32, Bluetooth 5.x A2DP (Source) to headphones/speakers, optional DAC for wired output, 2–3" E-Ink displays, joystick/encoder UI, USB-C Li-ion charging/power management, and ultra-compact layouts (≤ 4×5 cm) with resume, playlists, and metadata. I handle the full stack: schematic, PCB, firmware, and enclosure fit, with attention to battery life, EMI, and audio integrity. Send me a message and I’ll share a clear plan and timeline to get you a working prototype quickly. Best regards, Samuel Tshibangu

@mairajali11

As a highly skilled Electrical/Electronics Engineer and PCB Designer with a strong background in Bluetooth integration and power management, I am confident that I possess the necessary skills and experience to develop your compact Hi-Fi Bluetooth audio player. Having worked extensively on audio electronics and low-power devices during my 8-year career, I have acquired the expertise to design an impeccable playback device for you. My familiarity with E-Ink displays and navigation controls will ensure that your audio player has a user-friendly interface while conserving battery life. Moreover, my proficiency in PCB design using Eagle, Altium, KiCAD, and EasyEDA guarantees that your final PCB and enclosure won't exceed the given size requirements. In terms of project management, I'm committed to delivering high-quality solutions within deadlines and budgets. My past portfolio showcases successful projects similar to what you're seeking, enabling me to hit the ground running on this compact audio device. I’d be thrilled to leverage my skills for your project where we can turn your ideas into an efficient yet stylish reality. I’m available for further discussion 24/7! Thank you for considering me.

@SMBelectronics

Hello, I’m Abbas Jawadwala, Co-founder & Lead Engineer at SMB ElectroTech. With 5+ years of experience, I’ve delivered projects across PCB design, embedded systems, and product development for clients worldwide. Our expertise includes: - PCB layouts (single to multi-layer, DFM, signal integrity) - Embedded firmware (AVR, ARM, ESP, Arduino) - Power electronics & circuit design - End-to-end prototyping & testing We focus on robust, manufacturable designs with clear communication and on-time delivery. I usually handle one project at a time to ensure full attention and quality. I’d love to discuss your project requirements—I’m available this week for a quick call to get things moving. Best regards, Abbas Jawadwala SMB ElectroTech

@Zainrais0786

Are you looking for a skilled developer to create a compact audio playback device. I’ve got your back. Hi, I am Zain. I can easily handle the task including • Embedded Systems • Firmware Development • Bluetooth profiles / A2DP / HFP / HSP etc • Circuit Design • PCB Design etc. Lets chat. Best regards

@chetanc20

I’d be excited to participate in your project and collaborate with you to create the compact audio playback device you’ve envisioned. With my background in hardware design, PCB miniaturization, audio electronics, and low-power systems, I can support the project from concept to working prototype. How I Can Contribute Hardware Design & PCB Miniaturization Audio & Display Integration Prototype Bring-Up & Testing Why I’m a Good Fit 5+ years of experience in IoT and consumer hardware. Delivered compact designs like smart meters, gateways, drone controllers, and data loggers. Strong expertise in Bluetooth integration, E-Ink display handling, and battery-powered electronics. I’m genuinely interested in this project, not just as a developer but as a partner who wants to see this device built and optimized. I’d be happy to work closely with you, provide regular updates, and deliver progress based on milestones. Note: The estimated budget does not include Programming, Components, Procurement, PCB Fabrication, and Assembly.

@as348

Hi i have mor ethan 10 years experienced in circuot design and development in my past i have designed blietooth audio prodcut i can design best way under emimec but you hav etake care firmware part

@ahmedy607

Dear Client, I've thoroughly reviewed the project details for designing a compact audio playback device with Bluetooth output, E-Ink display, and low-power management. I'm excited about the opportunity to work on this project, which involves creating a device that meets the specified requirements. I understand the core functions, including: - Audio playback from microSD card with Bluetooth output (A2DP Source) - Small E-Ink display for navigation and metadata display - Basic controls for navigation and playback - Power management with rechargeable Li-ion battery and low-power modes - Compact form factor with PCB and enclosure not exceeding 4 × 5 cm I'm confident in my ability to: - Design a compact PCB with audio electronics, Bluetooth integration, and low-power management - Implement E-Ink display and navigation controls for user-friendly interface - Develop power management circuits for maximizing battery life - Ensure device functionality, including playlist browsing, song metadata, and resume function With experience in audio electronics, Bluetooth integration, and low-power device design, I'm well-equipped to handle this project. I've worked on similar projects involving compact audio devices and have proficiency in PCB design and power management circuits. Let's discuss the project further, and I'll provide a detailed estimate for the work involved. I'm ready to work step-by-step with you to meet the deadline. Best regards, [Ahmed Yahia]

@Mwaleed30

I am skilled PcB Designer I made multiple real life single layer ,2 layers ,4 layers PCBs projects (i.e: pcbs for compact ear buds Pcbs for compact usb with advanced security features Pcbs which involves USBs Also i made many large projects which handles high voltage AC and DC ) I will show you my PCB work separately I can work for your project and made it perfect in the best price and also give you a week after if any changes or other thing after the project submission You can also see my Portfolio which reflects some of My PCBs projects

@technot3

Hello, I am Ahmed Ibrahim. I work as a software and electronics engineer and have extensive experience of up to 4 years in the field of designing electronic circuits, PCBs, and programming microcontrollers. I can help you in this project with ease. You can trust me. We have never disagreed on the financial compensation. I will only take half the amount from you because this is the first transaction between us. Thank you.

@marioomapo

Hello Dear Client, I have carefully reviewed your project description and fully understand your requirements. With strong experience in audio electronics, Bluetooth integration, low-power PCB design, and E-Ink displays, I can deliver a compact and reliable device that meets your specifications. I will design the circuit and PCB (4 × 5 cm), implement firmware for microSD playback, Bluetooth 5.2 streaming, optional DAC output, and integrate E-Ink display, controls, and power management for maximum efficiency and battery life. I’m confident I can provide a production-ready solution. Let’s discuss details in private chat. Best regards, Mário Apolinário