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I am looking for an experienced PCB designer/electronics engineer to design a compact PCB for a 10W portable Bluetooth speaker. The goal is to develop a reliable, compact and production-ready PCB that can be used for a small commercial Bluetooth speaker product. Required Features * Bluetooth audio connectivity * 10W Class-D audio amplifier * 4Ω speaker output * Single-cell Li-ion battery operation * Battery charging and protection circuit * USB Type-C charging input * Power ON/OFF control * Play/Pause button * Previous/Next track control * Volume Up/Down control * LED status indication * Battery protection * Low-battery indication * Proper audio filtering and noise reduction * Compact PCB suitable for a portable speaker enclosure PCB Requirements * Compact PCB layout with optimized component placement * 2-layer PCB preferred, unless a different layer count is technically required * Proper grounding and power routing * Good audio PCB layout practices * Protection against short circuit, over-current and over-voltage where applicable * Components should be readily available and suitable for production * Design should consider low BOM cost and easy assembly Preferred Components The designer can recommend suitable ICs/components based on performance and cost. Possible areas include: * Bluetooth audio module/SoC * Class-D amplifier IC * Li-ion charging IC * Battery protection/BMS IC * Voltage regulation/power management * Buttons and LEDs * USB Type-C connector Deliverables I expect the following final files: 1. Complete circuit schematic 2. PCB layout 3. Gerber files 4. BOM with manufacturer part numbers 5. Pick-and-place/Centroid file 6. PCB fabrication files 7. Complete KiCad/Altium source files 8. PCB 3D model/rendering 9. Assembly/component placement drawing 10. Design documentation and basic testing recommendations
Project ID: 40640675
16 proposals
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Active 3 days ago
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16 freelancers are bidding on average ₹1,671 INR for this job

With 8+ years of hardware engineering experience specializing in mixed-signal, Class-D audio, and Li-ion power management I can deliver your production-ready Bluetooth speaker PCB efficiently. How I will execute your project: - Architecture: Bluetooth SoC (e.g., AC6956 / ESP32-A1S), high-efficiency 10W Class-D amplifier (e.g., TPA3110 / CS8305), and dedicated USB-C Li-ion charger/BMS with low-noise LDOs. - Layout: Compact 2-layer design in Altium/KiCad with optimized ground planes and audio filtering to eliminate ground loops. - Cost & Sourcing: Low-BOM, readily available components. You will receive all 10 deliverables, including Gerber, BOM, and 3D files. Ready to start!
₹1,050 INR in 7 days
6.6
6.6

Hi, I can design the compact PCB for your 10W portable Bluetooth speaker, including Bluetooth audio, Class-D amplifier, Li-ion charging/protection, USB Type-C input, buttons, LEDs, and production-ready fabrication files. The best solution is to first select low-cost, easily available components for the Bluetooth module/SoC, 10W amplifier, charging IC, battery protection, power control, and audio filtering. Then I’ll prepare the schematic and optimize the 2-layer PCB layout for grounding, power routing, noise reduction, compact size, and easy assembly. I’m comfortable with portable audio PCB design, Class-D amplifier layouts, Li-ion charging circuits, USB Type-C power input, battery protection, button/LED interfaces, audio noise reduction, KiCad/Altium design, BOM preparation, Gerber generation, and manufacturing-ready PCB documentation. Deliverables will include: * Complete schematic * Compact PCB layout * Gerber files * BOM with MPNs * Pick-and-place file * KiCad/Altium source files * PCB 3D model/render * Assembly drawing * Fabrication files * Basic testing recommendations I’ll focus on making the PCB compact, reliable, low-cost, and suitable for a small commercial Bluetooth speaker product. Best regards Ankit
₹3,000 INR in 1 day
3.9
3.9

With over a decade of experience in PCB Design and Layout, I'm confident I have the skills necessary to take on the task of designing a compact and reliable PCB for your 10W portable Bluetooth speaker. My team at Radionica has extensive experience developing high-frequency systems and we excel at transforming complex RF challenges into efficient real-world solutions. We will diligently address every required feature and deliver the exact solution you need. By leveraging our expertise in Power ON/OFF control, audio filtering, and noise reduction, we can ensure that your speaker delivers excellent sound quality. Our experience with both Li-ion battery operation and battery protection circuits means your design will have efficient power management and long battery life. In addition to meeting all design requirements, our focus on low BOM cost and easy assembly will help keep production costs down without compromising quality. We have access to a wide range of highly suitable and available components and we carefully balance performance with cost in any design we create. With us, you’ll not only get an efficient design but also the complete package of all necessary documentation, 3D model/rendering, testing recommendations among other things. Choose me for the complete package of high quality and professional delivery!
₹1,000 INR in 7 days
0.8
0.8

To deliver a compact PCB for your 10W portable Bluetooth speaker, I will carefully integrate the Class-D audio amplifier, single-cell Li-ion battery operation, and USB Type-C charging input while prioritizing low BOM cost and easy assembly. By enforcing strict grounding rules, noise reduction practices, and production-ready component selection, I will ensure zero costly respins and a seamless path to manufacturing. You will receive complete KiCad source files, Gerber files, and 3D models to guarantee total ownership and peace of mind. Portfolio: https://www.freelancer.com/u/imMAHMOUD Send over your mechanical enclosure dimensions and target component preferences, and I will begin mapping the schematic and component placement today.
₹705 INR in 1 day
0.0
0.0

Hello! I’d be happy to design a compact, reliable, production-ready PCB for your 10W portable Bluetooth speaker. I have experience with schematic design, component selection, power management, audio circuitry, PCB layout, grounding, and manufacturing-ready documentation. I can develop the complete design around Bluetooth audio, Class-D amplification, Li-ion charging/protection, USB-C, controls, battery indication, and noise-conscious audio routing while keeping the PCB compact and cost-effective. I’ll also provide the complete source files, Gerbers, BOM with manufacturer part numbers, Pick-and-Place file, 3D model, assembly drawings, and documentation/testing recommendations. I’m ready to discuss your enclosure dimensions, battery specifications, preferred software, and production requirements. Message me now so we can get started.
₹650 INR in 1 day
0.0
0.0

I’d be glad to design and develop your compact, production-ready 10W Bluetooth speaker PCB. I understand the need for a reliable 2-layer design with Bluetooth audio, Class-D amplification, single-cell Li-ion charging/protection, USB-C input, controls, LED indicators, and optimized audio/power routing. I can handle the complete development workflow, including: • Schematic design and component selection • Compact PCB layout with proper grounding and noise reduction • Battery charging, protection, regulation, and power management • Audio filtering and stable 4Ω/10W amplifier implementation • Production-focused BOM with manufacturer part numbers • Gerber, fabrication, Pick-and-Place and assembly files • Complete KiCad/Altium source files and 3D PCB model • Component placement drawing and design documentation I’ll prioritize readily available components, low BOM cost, thermal performance, manufacturability, and reliable operation. I can also provide practical testing recommendations for validating charging, audio quality, battery safety, and power performance.
₹900 INR in 3 days
0.0
0.0

Hello there, It's my pleasure to write to you that I can assist you in completing this project on PCB design for 10 W portable bluetooth speaker. I am an electrical engineer having 5+ years of experience in Hardware design. I have desined PCB for protable hardwares. I have experience working with high power PCB, low speed PCB, RF based PCBs etc. I will deliver you: 1. Complete circuit schematic 2. PCB layout 3. Gerber files 4. BOM with manufacturer part numbers 5. Pick-and-place/Centroid file 6. PCB fabrication files 7. Complete KiCad/Altium source files 8. PCB 3D model/rendering 9. Assembly/component placement drawing 10. Design documentation and basic testing recommendations Kindly initiate chat and let's discuss on the details of the project. Regards,
₹5,000 INR in 7 days
0.4
0.4

Hello, I'm bharghav, an Electrical Engineer with 10 years of experience in intricate PCB design and development, specializing in compact, high-performance audio electronics. I understand your need for a production-ready, compact PCB for your 10W portable Bluetooth speaker, incorporating all specified features like the Class-D amp, Li-ion management, and USB-C. My solution will focus on a 2-layer design with optimized routing, noise reduction, and readily available, cost-effective components, delivering all required files including Gerbers and KiCad/Altium sources. Please initiate a chat so we can discuss the specifics further. Best regards,
₹1,050 INR in 3 days
0.0
0.0

Hello, I am an Electronics Engineering student with experience in KiCad PCB design and embedded hardware. I can design schematics, create compact 2-layer and 4-layer PCB layouts, generate Gerbers, BOMs, Pick & Place files, and 3D PCB models. I carefully follow datasheets and reference designs to ensure a reliable, production-ready design. I am committed to clear communication, attention to detail, and delivering high-quality work on time.
₹1,000 INR in 7 days
0.0
0.0

I’m an experienced Mechatronics/Electronics Engineer with strong experience in PCB design, embedded systems, power electronics, and audio/electronic hardware. I can design your compact 10W Bluetooth speaker PCB with a focus on clean audio routing, low-noise grounding, efficient power management, Li-ion charging/protection, USB-C input, and production-ready component selection. I can deliver the complete schematic, optimized 2-layer PCB layout, BOM with manufacturer part numbers, Gerbers, pick-and-place files, assembly drawings, 3D model, and complete KiCad/Altium source files. I’ll also ensure the design is cost-effective, reliable, and suitable for commercial manufacturing.
₹1,500 INR in 7 days
0.0
0.0

Hi, I like your idea, I’d be happy to help with this project. I have experience with ESP32-based electronics, Li-ion battery systems, PCB design and 3D CAD, so I understand the requirements of a compact portable speaker like this. For the prototype, I would consider an ESP32-based Bluetooth audio solution together with a suitable 10W Class-D amplifier, with the exact amplifier and Bluetooth configuration selected based on the required audio quality, power consumption and BOM cost. For the battery section, a TP4056-based charging circuit with DW01A + MOSFET battery protection could be used, together with USB-C input and appropriate power regulation/protection. I would also implement the required buttons, status LEDs and low-battery detection. I would pay particular attention to the audio ground, power routing, filtering and PCB placement to minimize switching noise and interference from the amplifier and digital circuitry. I can also create the 3D model of the speaker enclosure and design the PCB around the available enclosure dimensions, including mounting points, button openings, USB-C access, speaker placement and other mechanical requirements if needed. The final design can be provided in KiCad with the schematic, PCB, BOM, Gerbers, pick-and-place files and 3D model. I’d be happy to review your mechanical constraints and requirements and propose the most suitable component selection for the final design.
₹3,000 INR in 5 days
0.0
0.0

Hello, I’m a strong fit for this project because I have hands-on experience developing battery-powered, wireless and compact embedded hardware. I have worked on BLE/Wi-Fi based IoT and wearable devices, STM32/ESP32 hardware, Li-ion battery and charging systems, DC-DC power supplies, and compact PCB layouts. I’ve also designed complete PCBs including schematics, component selection, PCB layout, BOM, DRC and Gerber/manufacturing filesusing KiCad, Altium and OrCAD. For your Bluetooth speaker, I can apply this experience to properly integrate the Bluetooth section, 10W Class-D amplifier, 4Ω speaker output, Li-ion charging/protection, USB-C, buttons and LED indicators while paying particular attention to audio noise, grounding, power integrity and compact placement. My background in both wireless embedded systems and power electronics makes me well suited for this project rather than being limited to PCB routing alone. I can start immediately and deliver a production-oriented design. Best regards, Rahul
₹1,500 INR in 15 days
0.0
0.0

Hello, I am an Embedded Systems Engineer with hands-on experience in ESP32/STM32, PCB design, power electronics, motor drivers, and custom embedded hardware. I have experience designing power supply circuits and production-oriented PCBs, making this portable Bluetooth speaker project a strong match for my background. I can design the complete compact 2-layer PCB, including: Bluetooth audio module/SoC 10W Class-D amplifier for 4Ω speaker Li-ion charging and protection USB Type-C input Power management Buttons and LED indicators Battery monitoring and low-battery indication Proper audio filtering, grounding and noise reduction Short-circuit, over-current and over-voltage protection where applicable I will focus on low BOM cost, component availability, compact placement, thermal performance and clean audio/power routing suitable for a commercial product. Deliverables will include the complete schematic, PCB layout, Gerbers, BOM with manufacturer part numbers, Pick & Place, fabrication files, KiCad/Altium source files, 3D model, assembly drawing and design documentation. Before starting, I would like to confirm the maximum PCB dimensions, battery specifications/capacity, required charging current, mono/stereo configuration, Bluetooth requirements and whether USB-C is charging-only. I can start by reviewing the mechanical and electrical requirements and then proceed with component selection and schematic design. Best regards, Basri Kılıç Embedded Systems Engineer
₹1,050 INR in 7 days
0.0
0.0

Bluetooth Speaker | Class-D Audio | USB-C Hi there, I understand you need a compact, production-ready 10W Bluetooth speaker PCB with clean audio performance, efficient power management and a low-cost BOM. Tech Stack: ■ Bluetooth Audio Module / SoC ■ Li-ion Charging & Protection ■ USB-C Power Input ■ Audio Filtering & Noise Reduction ■ KiCad / Altium ■ 2-Layer PCB Design My Approach: ■ Select suitable Bluetooth, amplifier and power-management ICs based on cost and availability ■ Design the charging, battery protection and power-control sections ■ Implement buttons, LED indication and low-battery detection ■ Optimize PCB grounding, audio routing and power paths to minimize noise ■ Deliver fabrication-ready PCB files and complete documentation Guarantee: ■ Compact and manufacturable PCB ■ Production-friendly component selection ■ Clean audio and power layout ■ Complete editable design files and technical support Query: Do you already have the speaker/enclosure dimensions and preferred battery capacity? Let's connect and discuss the enclosure constraints and BOM. Regards, Milan
₹1,050 INR in 15 days
0.0
0.0

ican do it with a very low cost of money and any problem or mistake in it iwill solvere it without any money
₹1,275 INR in 10 days
0.0
0.0

Pimpri-Chinchwad, India
Member since Jul 21, 2026
$30-250 USD
$30-250 USD
$750-1500 USD
$30-250 USD
$8-15 USD / hour
$10-30 USD
£18-40 GBP / hour
₹1500-12500 INR
€250-750 EUR
₹12500-37500 INR
₹12500-37500 INR
$30-250 USD
$30-250 USD
₹12500-37500 INR
₹600-1500 INR
₹600-1500 INR
$15-25 USD / hour
£250-750 GBP
₹600-1500 INR
$30-250 USD