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MADE IN CHINA Audo signal modulation and amplification

ESP 32 creates square wave with adjustable duty cycle, frequency and amplitude which amplifies to max 24 V and modulates audio signal via a differential amplifier

Amplification level is set by front panel potentiometer and displayed with 2 digit LED or LED bar graph

Amplitude, Frequency and duty cycle should be set from a small App

I would prefer a Chinese developer or one with strong experience on how to get this produced in China.

Please make a fixed quote so you do not need to ask me "WHAT IS YOUR BUDGET'" - if this little project works out well I will have many follow up projects for you.

Audio signal shall be used for light and electric therapy.

Kĩ năng: Điện tử, PCB Layout, Arduino

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Về Bên Thuê:
( 60 nhận xét ) Koh Samui, Thailand

ID dự án: #29189967

Được trao cho:

(10 Đánh Giá)

11 freelancer chào giá trung bình$529 cho công việc này


Hello, thank you for your job posting. I read your description about--MADE IN CHINA Audo signal modulation and amplification I am a senior electrical engineer. I have plenty of experience in firmware development and m Thêm

$550 USD trong 2 ngày
(130 Nhận xét)

Hi Sir, I have read your audio modulation project and able to do it. Let me introduce you to our company TURKTRONICS. We are TURKTRONICS. We are team of professionals with 11+ years of experience in Circuit designs, Thêm

$600 USD trong 20 ngày
(58 Nhận xét)

Hi, I am an PCB designer who have enough knowledge in electronics and audio signal. In the past I have joined development of the 5.1 sound system and I have some experience in this filed. I will provide you high qualit Thêm

$600 USD trong 7 ngày
(31 Nhận xét)

Hi! I am an Electronic engineer, PCB Layout, Circuit Design, microcontroller, STM32 microcontroller, C programming expert having past experiences with ,Altium, arduino, pic, AVR, chipkit and Texas instruments microcont Thêm

$750 USD trong 7 ngày
(11 Nhận xét)

hi i'm Vinh Your project belongs to my specialty. programming DAC and ADC, I have a lot of experience with analog signal modulation and demodulation. I have a lot of experience in amplifyer, analog signal, digital ... Thêm

$350 USD trong 7 ngày
(15 Nhận xét)

Hello there. I hope to work with you because your project is very familiar for my past works. I have 3+ years experiences in Electrical Engineering & PCB Layout & Circuit Design. Hope further discussion about your proj Thêm

$250 USD trong 7 ngày
(11 Nhận xét)

I am electronic engineer having project development, prototyping development experience of 5 years. I am having in depth knowledge of modulation and electronic. I am expert on robotics, drone, PCB design and many more Thêm

$667 USD trong 7 ngày
(2 Nhận xét)

I am an Electrical and Electronics Engineer. I have strong knowledge and ability in preparing Electrical Engineering reports, articles, and projects. I have a good thoughtful of different experimental projects in the f Thêm

$600 USD trong 7 ngày
(1 Nhận xét)

Greetings, We are embedded based Indian company. We offer services in embedded hardware design, embedded formware developement and product development. I have gone through your project description and we are glad tha Thêm

$850 USD trong 26 ngày
(0 Nhận xét)

I will do the project very well. Will not give you a chance to complain. Ghori will work me in the office. I will try to make you be the best Made as much as it was made. You did it. Such a project has been made. Thêm

$250 USD trong 2 ngày
(0 Nhận xét)