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₹12500-37500 INR

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We need to develop a circuit which turns-off an amplifier or any other device when a low level audio signal fed to its input is absent for 15 minutes at least. We have the basic schematic and list of materials and require someone with a good understanding of circuits for consultation and also for completion of the project.
Mã dự án: 14064216

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29 đề xuất
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Hoạt động 7 năm trước

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29 freelancer chào giá trung bình ₹25.289 INR cho công việc này
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If you are looking for solution then I can offer my quality work for this task. Its easy and can be done with care. Dont ask me how please, but here is how it will be done. It will have a threshold adjusting preset which you will need to adjust to a level which you think is absent of sound. it will then turn a LED to show that there is no sound sensed. if waited for 15 (adjustable in codes) minutes, then it will turn off the gadget via relay. I will use Rs 40 microcontroller to do this task, a small PCB will be supplied along with codes. Lets do it. I have given a reasonable price too. Thanks
₹16.666 INR trong 10 ngày
5,0 (51 nhận xét)
6,2
6,2
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A proposal has not yet been provided
₹44.444 INR trong 20 ngày
4,9 (8 nhận xét)
4,9
4,9
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Respected Brother,,,, Its me Imad Ud Din, An electronics Engineer from Pakistan, Have completed about 200+ projects involving arduino, MATLAB, pcb designing, circuit designing and App development. Some of the projects are as follows: 1. Digital Stethoscope using arduino. 2. Grid Tied Inverter 3. Automatic car Parking fee collector and car counter. 4. RF based fire extinguisher vehicle. 5. Weather monitoring and storm navigation system. 6. Nextion LCD based motor bike complete monitoring and auto fault adjuster. 7. Working on virtual hands(In progress) 8. Done work on Viola Jones algorithm for face and thumbd recognition. 9. Vehicles complete controlling and status udpdating using nextion LCD touch screen. Along with these a lot of projects are under supervision and by awarding your project, you will find a better accomplishment and extreme friendly and brother hood relationship. Thanks
₹12.500 INR trong 10 ngày
4,8 (89 nhận xét)
5,0
5,0
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Hello, Based on the description I could make a schematics and PCB design files for your need. Thanks.
₹27.222 INR trong 8 ngày
5,0 (8 nhận xét)
4,6
4,6
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Hi, Can you share all your project requirements/task expected from us. About us: Micro-controllers we have worked on PIC, STM32, PSOC and AVR. Development kits and instruments available for testing purpose. For PCB designs we use KICAD. C#, LABVIEW, Python for GUI, Controlling or Datalogging purpose. Thanks and Regards, Santosh
₹33.333 INR trong 10 ngày
4,9 (5 nhận xét)
4,0
4,0
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Hi, i can help you with your project. I can also provide samples which I have previously done in the same field. Lastly, will work within your budget range and given deadline. (FREE TURNITIN REPORT AS WELL)
₹12.500 INR trong 2 ngày
4,8 (16 nhận xét)
4,0
4,0
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Hi, I am an electrical engineer and have done projects related to circuit design in the past. For further information, please refer to my profile. I would like to know more about this project. Looking forward to hear from you. Regards.
₹16.666 INR trong 10 ngày
4,7 (5 nhận xét)
3,2
3,2
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Hi! I'm an argentinean electronics engineer based now in Berlin. I graduated last December with experience in more than 150 devices developed, implemented and tested, using:# - Altium Designer - Altium Circuit Maker - Isis and Ares Proteus - LTSpice - Keysight ADS I'm really interested in your project since I love working with audio amplifiers and circuits using BJTs, MOSFETs and Tubes. After taking a look at the schematic I believe after a short period of testing using LTSPice, a PCB could be designed. Shall you have interest, please do not hesitate to contact me.
₹22.222 INR trong 30 ngày
5,0 (2 nhận xét)
1,0
1,0
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Dear Sir/mdm. my name's yuniarto wimbo nugroho, i have bachelor degree in electronics engineering, and i have experience PCB design more than 5 years using altium and eagle or other software. if you interest with my offering we can discuss more about this project. thanks a lot.
₹27.777 INR trong 5 ngày
0,0 (0 nhận xét)
0,0
0,0
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Need more information, sounds to easy.
₹27.777 INR trong 10 ngày
0,0 (0 nhận xét)
0,0
0,0
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Hi! I am an engineer from Ukraine with over 5 years experience in electronics design and electrical engineering and near two years in web development. During 5 years of working for Efes-Electronics LLC I have been participating in and studying full cycle of electronic components and parts production, took active part in the design and installation of hardware and software process automation and control systems based on industrial PLC's. I was developing my own hardware platforms for the needs of Ukrainian industrial enterprises like Zaporizhstal, Azovstal etc. I also participated in the development of auxiliary electronics for Daewoo passenger cars. You can find examples of my works in my portfolio. Feel free to contact me for any additional information about my experience. I'm interested to work on promising turn-key projects combining both hardware and software development for end-customer market or for commercial and industrial applications. Kind regards, Eduard.
₹40.000 INR trong 10 ngày
0,0 (0 nhận xét)
0,0
0,0
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Hi, Your project seems very interesting to me, as I am passionate with audio power amplifiers (I have done many based on both: integrated circuits as TDA7294 and FET transistors). As an electronic engineer I offer you professional and precise work. I am advanced user of Altium Design PCB CAD tool, so I can design you the professional PCB board for your circuit. As the first step in developing your circuit, I would use some of circuit simulator (prefer LtSpice) to check the required voltage levels and time constraints (to ensure that low audio level for 15 minutes will generate impulse for switching the circuit off). I am sure you will be satisfied with my work, if you give me the chance to work on your project. Best regards, Igor Stojanovic
₹22.222 INR trong 15 ngày
0,0 (0 nhận xét)
0,0
0,0
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Hello! My name is Jackie. Currently, I am working as a hardware designer. I joined many projects to design electronic products and I am good at working with power, high speed digital and analog interface. I use fluently schematic and pcb design tools, such as: Altium, Cadence, and Mentor PADS. I make sure to finish your project well. Do not hesitate to contact me. I am looking forward your message.
₹22.222 INR trong 7 ngày
0,0 (3 nhận xét)
0,0
0,0
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A proposal has not yet been provided
₹20.000 INR trong 5 ngày
0,0 (0 nhận xét)
0,0
0,0
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I m best in design
₹33.333 INR trong 8 ngày
0,0 (0 nhận xét)
0,0
0,0
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Hello! I have already designed a PCB layout of that schematic before! I have already done this project about a year ago for my friend who needed to turn off his amplifier and festival light too. What a coincidence :) Please do contact me!
₹12.500 INR trong 6 ngày
0,0 (0 nhận xét)
0,0
0,0
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6+ years of experience in creating high speed PCB design.
₹27.777 INR trong 7 ngày
0,0 (0 nhận xét)
0,0
0,0

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Cờ của INDIA
New Delhi, India
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Thành viên từ thg 5 18, 2017

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