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Battery Powered Sound System Circuit Board Design

$30-250 USD

Closed
Posted almost 9 years ago

$30-250 USD

Paid on delivery
Complete circuit board design for a battery powered sound system with: 1 1/4" mic input 1 1/8" line level input 2 separate built-in wireless receivers 1 Built-in blue tooth playback module 1 1/8" line level output 1 output to built-in SD card recorder module 1 Single tone control 1 output to 6" 8ohm speaker 1 Power on/off switch 1 DC charging input for a 12v 7aH built in lead acid battery Please see attached graphic showing the controls. Final product similar to this: [login to view URL] When project is awarded I will provide detailed information about the components being used. Finished project will include everything necessary for production of this board. Sound system design, and a deep understanding of audio circuitry is required.
Project ID: 7860221

About the project

15 proposals
Remote project
Active 9 yrs ago

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15 freelancers are bidding on average $729 USD for this job
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Hello, Have a great Day. We will deliver the working prototype. The circuit will have all of the required features and will be in working conditions. Following will be deliverables. 1. Schematics and Bill Of material 2. PCB design 3. Firmware 4. Working prototype. Please feel free to contact. Best Regards, Shahbaz.
$2,000 USD in 40 days
4.6 (50 reviews)
7.0
7.0
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A proposal has not yet been provided
$147 USD in 3 days
4.9 (118 reviews)
6.6
6.6
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Hello Sir, I went through your project proposal and it's very interesting and I would like to work on this project. Why you should hire me ? * I have four year experience as a freelancer and I am very efficient. * I have many good feed backs. Please visit this link and see for yourself some of my feedbacks on freelancer.com https://www.freelancer.com/u/Anthony989.html * I can support you if you are willing to mass produce this as a product. I have many contacts in China. *I work full time as a freelancer and I will work as planned,on time. Please contact me if you are interested. I am keenly waiting.
$155 USD in 3 days
4.8 (54 reviews)
6.4
6.4
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Over 12 years of experience in electronics hardware and software design. Proficient in software and hardware design of embedded systems. Successful in planning and management of entire development and production cycle. Programming languages: C, C++, Ada, Pascal, MATLAB, GPSS, VHDL Processor architectures: 8051, AVR, ARM-M3, ARM-R4, ARM-7, x86, PicoBlaze, PSoC, PIC FPGA and CPLD architectures: Cyclone, MAX, Spartan, CoolRunner Set of rules to be stated before work: - All milestones should be backed up by you. So you release the money for milestones when you receive work done for each milestone and happy with it. - All decisions that I will make during the development that were not stated in project description I may do on my own understanding. I may ask you, if something was not described but not necessary I will do so. - Any changes that are to be entered by you for the project description, results, milestones, etc. after me accepting the project are subject to discussion and may lead to extra payment. - Next milestone work will begin only after finishing the previous one and releasing payment for it. - Prototype cost, delivery costs, components, PCB manufacture and other costs not connected with solely my services are extra payed when they are determined.
$2,631 USD in 60 days
5.0 (32 reviews)
5.9
5.9
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Great Project !!, I have seen and understand all your requirements. I have very strong expertise in it although I have a great experience in it, I have intelligence, energy and integrity. Once give me work, I assure you , you'll surely like my work. Please open chat window to discuss further.
$197 USD in 3 days
4.9 (53 reviews)
5.5
5.5
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I have read and understand your requirements please open chat window to discuss further --------------------------------------------------------------------------------------------------------------------------------
$600 USD in 25 days
4.5 (33 reviews)
5.2
5.2
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Have industrial experience in PCB designing of 1 to 6 layers. Have worked on many embedded projects : coding and hardware designing. Have 4+ years experience in KiCad and EAGLE Cad. Worked on many wireless modules BLE4.0 ,WiFi ,GSM&GPS like SIM908, Nordic's nRF51x22 , TI's cc2541 cc26x0 series ,CY7C65632 etc. Completed projects on Induction Cooktop, Note counting Machine, USB Hub and biomedical devices using Analog Front End devices(AFE) eg: TI's AFE4400,AFE4300 ;Analog Devices AD8232,ADAS1000 etc. Also have experience in creating 3D model of the PCB board.
$150 USD in 9 days
4.9 (7 reviews)
3.7
3.7
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Hello, I am professional prototype engineer with 6 years experience in big automotive company. I work on Eagle CAD. Looking forward to working with you!
$277 USD in 30 days
5.0 (2 reviews)
1.3
1.3
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We are an Engineering outsourcing firm founded by a group of young and talented engineers with vast spectrum of experiences and knowledge pertaining to Electronics design, development, testing, manufacturing and sustenance in general. We offer services such as Concept development, Prototype development, Architectural design, High level Board design, Analog/Digital/Power electronics design(Logical & CAD), Form Factor Free test/development board design, Form Factor Fit boards design from Form Factor Free development boards, Firmware/Application software development for embedded devices, Firmware migrations between platforms, Platform migrations with Nil or minimal change in code, PCB Layout design, DFX, EDA design entry, Gerber generation , Test plan preparation, Product/Board Testing, Integration Testing, SI Analysis,Power Integrity Analysis, Component Sourcing, Obsolescence management, Product Sustenance, Should costing and Value Engineering. Service Description We offer services such as Concept development, Prototype development, Architectural design, High level Board design, Analog/Digital/Power electronics design(Logical & CAD), Form Factor Free test/development board design, Form Factor Fit boards design from Form Factor Free development boards, Firmware/Application software development for embedded devices, Firmware migrations between platforms, Platform migrations with Nil or minimal change in code, PCB Layout design, DFX, EDA design entry, Gerber generation , Test plan preparation, Product/Board Testing, Integration Testing, SI Analysis,Power Integrity Analysis, Component Sourcing, Obsolescence management, Product Sustenance, Should costing and Value Engineering.
$100 USD in 20 days
0.0 (0 reviews)
0.0
0.0
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A proposal has not yet been provided
$250 USD in 3 days
0.0 (0 reviews)
0.0
0.0
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I AM AN ELECTRICAL AND ELECTRONIC ENGINEER. I HAVE WORKED ON CIRCUIT BOARD DESIGNING FOR MAKING REMOTE FOR ROBOTS. LANGUAGES KNOWN-PLC,SCADA,LAB VIEW,MATLAB PROJECTS WORKED ON-DIESEL ENGINE HEALTH MONITORING SYSTEM
$277 USD in 20 days
0.0 (0 reviews)
0.0
0.0
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A proposal has not yet been provided
$222 USD in 10 days
0.0 (0 reviews)
0.0
0.0
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What power of 6" 8 ohm speaker? Is the single band Acoustic System? (mean - no tweeter) Closed box type?
$2,777 USD in 90 days
0.0 (0 reviews)
0.0
0.0
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can be done, just your budget is tooo low... Accept this proposal only if you are ok with the Altium design.
$1,111 USD in 7 days
0.0 (0 reviews)
0.0
0.0
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A proposal has not yet been provided
$45 USD in 3 days
0.0 (0 reviews)
0.0
0.0

About the client

Flag of UNITED STATES
Poland, United States
4.9
7
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Member since Apr 24, 2014

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