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We need a simple portable electronic intercom system designed

$250-750 USD

Completed
Posted over 6 years ago

$250-750 USD

Paid on delivery
Looking for an experienced electronics expert who can design a simple duplex intercom circuit on a PCB. It is required that the end product is lightweight and cost effective. This device will be used for driver-passenger communication in vehicles. We expect the highest quality work. Please respond if you have experience with amplifier circuits and electronics. PLEASE Provide us with examples of previous audio equipment work when applying. Others will be ignored. Thank you.
Project ID: 15180889

About the project

17 proposals
Remote project
Active 7 yrs ago

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i have already design this one for BIG VAN please pm me for more details. i am from Shenzhen, China Relevant Skills and Experience PCB layout Proposed Milestones $277 USD - 2 step
$277 USD in 7 days
5.0 (6 reviews)
3.8
3.8
17 freelancers are bidding on average $553 USD for this job
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Hello, We are expert in RF (Radio Frequency) based circuit design and prototyping. We will handover the design files like Schematics, BOM and gerbers after testing it on prototype PCB. Please feel free to contact us. Best Regards, Shahbaz.
$1,000 USD in 30 days
4.6 (52 reviews)
7.0
7.0
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Hi sir, We have read your document , we can design you such board in Altium along with firmware. Lets talk to us in details. We are very experienced engineers with professional attitude. Lets discuss Relevant Skills and Experience Our team is consist of engineers and developers with mostly 8+ years of experience in embedded product designs, we don't compromise on quality and satisfy the client to 100%. Lets talk to us! Proposed Milestones $350 USD - Proj fee, we offer our solution at very low and affordable rates. We are very much looking forward to hear from you on this in coming days. Regards, Ahmad TURKTRONICS
$350 USD in 10 days
4.9 (47 reviews)
6.7
6.7
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hello sir i am interested in your project. i have already done some audio applications ( digital audio recording and playing). Expérience et Compétences appropriées the first one is to record audio data with mems microphone and store wav file in sdcard. the second one is to read mp3 file from sdcard and send it to VS1053 chip, and then to audio amplifier. Étapes proposées $700 USD - intercom design. we can discuss more details in private chat. regards.
$700 USD in 40 days
4.7 (55 reviews)
6.0
6.0
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I am an expert with more than 15 years of experience in the field of embedded systems, electronics, prototyping and PCB layout. I assure you the best solution for your work. Relevant Skills and Experience Embedded Systems Electronics Prototyping Proposed Milestones $750 USD - Complete system with working sample
$750 USD in 30 days
4.5 (59 reviews)
6.2
6.2
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Hi, I can do intercom system using Bluetooth modules. At each point I will use 2x Bluetooth modules - speakers receiver and microphone sender. It is possible to add microcontroller and LCD. Relevant Skills and Experience Bluetooth Microcontroller Audio transmitting Proposed Milestones $555 USD - Milestone
$555 USD in 20 days
5.0 (11 reviews)
5.2
5.2
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Hi Sir. I am a professional Electronics Design Engineer having expertise in Power amplifier designing and their simulations. I will deliver you a quality work. Contact me. Relevant Skills and Experience Electronics Circuit designing, PCB designing, Communication, Proposed Milestones $750 USD - Project Additional Services Offered $150 USD - Report Provide more details
$750 USD in 15 days
4.7 (16 reviews)
5.0
5.0
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Will provide complete design of the system. including Gerber for PCB manufacture Relevant Skills and Experience Designing electronic devices for three decades, mixed signal,communication amplifiers Proposed Milestones $666 USD - Schemati,BOM, layout Draft specification of the specification
$666 USD in 10 days
5.0 (12 reviews)
4.4
4.4
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For the bid price I can make a list of parts to order to start building your intercom, and an estimate of how long it will take. Do you want the audio wired or wireless, the cost will be comparable Relevant Skills and Experience I make low power devices, mostly wireless, battery powered things. I can help with your sound Stay tuned, I'm still working on this proposal.
$333 USD in 3 days
4.9 (2 reviews)
4.3
4.3
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Hello. I have more then 5 years expirience with hardware shcematic design and mcu programming. I coud do it on wire or wireless. I designed headphone amplifier for chineese manifacture nrf24l01 based walkey-talkey, sometomes repeir music amplifiers and guitar addons.
$300 USD in 14 days
4.7 (11 reviews)
3.8
3.8
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You need a full duplex or PTT type half duplex. What is the distance that we are talking and how would the cabling work. Can you outline your specific requirement. Relevant Skills and Experience Circuit Design, PCB Design and Firmware Development Proposed Milestones $666 USD - After successful completion
$666 USD in 30 days
4.9 (4 reviews)
3.7
3.7
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my experience on Electrical Engineering and Electronics is a big influence that will enable me achieve success in this project Relevant Skills and Experience Electrical Engineering, Electronics, Engineering, Microcontroller, PCB Layout Proposed Milestones $250 USD - initial milestone deadline??
$250 USD in 1 day
4.1 (4 reviews)
4.0
4.0
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Expert team in electronics, Communication engineering. Experienced in DSP, circuit design and audio circuitry Relevant Skills and Experience Electrical Engineering, Electronics, Microcontroller, PCB Layout Proposed Milestones $100 USD - Project Initiation $300 USD - Project Schematics and Simulation $105 USD - PCB LAYOUT $50 USD - Complete Project Submission Additional Services Offered $100 USD - Detailed Documentation $1200 USD - Prototype Development with video demonstration
$555 USD in 10 days
5.0 (1 review)
2.5
2.5
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250USD for 10 days Relevant Skills and Experience I am an Electronics Engineer and I am expert in Electronics Circuit Design and PCB Layout. Please see my portfolio. Proposed Milestones $250 USD - Electronics Circuit PCB Design
$250 USD in 10 days
5.0 (1 review)
2.2
2.2

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Flag of UNITED STATES
Troy, United States
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