Design a product prototype

Hello, I've made a project with audio recording using Arduino ADC before. The file is saved to the MicroSD card as wav file. This means you can take the MicroSD card and put in computer or whatever to read the files easily. In this project, I will make a working prototype board with 6 momentary switches to control 6 microphones. When any of the switches are pressed, then the Arduino will record the audio from the microphone. Notice that due to the memory limitation of the Arduino, only 1 recording can be done at a time, if user presses multiple switches at the same time, then Arduino will record one by one (i.e. record for 1st switch for 30 seconds, then goes to the next). To save the memory, the audio quality will be 64kbps, this is exactly same as the quality of the traditional PSTN telephone system. Deliveries for this projects are (1) the working prototype board, (2) source code and (3) schematic with all parts names and numbers. The cost of this bid does not include the cost for parts and shipping. Regards, anhvu100

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Hi sir an easy project. We will do it for you. We offer solution at affordable rates so ping us for more talk . Very much looking forward to hear from you. Cheers Ahmed

Hello I am an Electronic Engineer and can do the job for you. I can submit a working prototype as required. Available to talk Thank you

Hi, I am a product engineer with a dedicated team of inhouse mechanical, electronics hardware and software engineers. We have published 9 international papers and 5 patents. In past we have designed complete products like desktop coffee roasting machine, gun recoil simulation mechanism, etc to name a few with microcontroller based sensors and controllers. We also have inhouse prototyping and manufacturing facility including 3D printing i.e. SLA and SLS in 3 different polymers, vacuum casting for a range of polymers and aluminum, CNC milling and turning, etc. PCB printing, hardware assembly, product integration & testing is also available. If you have any queries do let me know. Best regards Anuj Garg

Hello, I am Paul I can Deliver an aesthetic Design I look forward to designing your Product I have extensive Product Design and Development Experience Kindly go through my Portfolio for some of my works Regards Paul I can Prototype and Manufacture for you too

Hi! I am Jordan, new one on Freelancer , a CE products and Disney & Marvel characters toys designer from China. I have 10 years of experiences in products design, molding and assembly. I have good knowledge of material, artwork and electronics and have good relationship with local design house and core components vendors. In past 2 years, i designed bluetooth anti-drop device and kid’s watch for european customer and baby thermometer for local company. I help my customers from product concept to mass production. I am interested in your project and confident that i could meet your requirements. More details could be discussed via my skype: YtterbyCreative! Tks!

Developer of electronic equipment , control Experience brushless motors , controller temperarturas , Experience in progrmacion C. maenjos of Proteus software and Altium , I hope I concacte thanks .

Hello! We need more information. What is the quality of the recording is required? What is the output file format? And other technical issues. Please contact me to discuss the details of the project.