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simple audio ADC

I would like to build a single line audio ADC on a teensy 3.5. that will convert to line audio signal to a VU reading.

Line Audio =~ 1.7v AC

In the uploaded images, the sin looking wave would be the original, and the other would be the result at full amplification. A simple electrical circuit should be ale to achieve this.


- Teensy 3.5 using the arduino IDE

- Adjustable peaks with 100k linear potentiometer

- a cheap opamp, maybe an OPA344

- 1/4 inch TRS audio jack for input signal

I would like the teensy 3.5 to be able to read the analog signal and to power the circuit. This will more than likely need to convert the 3.3v DC output of the teensy to 5v DC.

Must be able to communicate in written english.

Kĩ năng: Điện tử, Kĩ thuật điện, Arduino, Vi điều khiển, Lập trình C

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Về Bên Thuê:
( 0 nhận xét ) Denver, United States

ID dự án: #21889910

10 freelancer đang chào giá trung bình $71 cho công việc này


Hello! I am very interested in your post project. While I read your description carefully, I was excited with feeling that I would be able to satisfy for your requirements in this job. We can negotiate on price/Budget Thêm

$55 USD trong 1 ngày
(5 Nhận xét)

Hello, thank you for your job posting. I am a senior device developer. I have plenty of experience in firmware development and micro-controller developments. I can write the firmware based on Arduino, Raspberry Pi, Pic Thêm

$100 USD trong 2 ngày
(10 Nhận xét)

********************************EXPERIENCED EXPERT!********************************* Hello. I have read your job description carefully and am interested in your project. I am an experienced electronic engineer. Your su Thêm

$60 USD trong 2 ngày
(3 Nhận xét)

I can do this ADC convertion project for you immediately if you accept. I am experienced with Arduino and PICç

$50 USD trong 7 ngày
(6 Nhận xét)

TL;DR: This project is simple enough to do it in a couple of days. I can work on this before you even accept this deal. No strings attached, you can pay after that, this way you can see how I work without risk. Just le Thêm

$35 USD trong 3 ngày
(2 Nhận xét)

I have quite a lot of experience with the Teensy. In fact my experience spans around a decade in total. I will get your project done with the best results.

$110 USD trong 3 ngày
(1 Nhận xét)

Hello, Checking your requirements we found ourselves fit to proceed with this project. I have some queries . It would be really great if we can get connected here to understand requirement and clarify everything in mor Thêm

$120 USD trong 7 ngày
(0 Nhận xét)

20 years experience in Microcontroller Projects. Relevant Skills and Experience Embeded software. Microcontroller. Electronic Ckt design and PCB layout expirence.

$45 USD trong 10 ngày
(0 Nhận xét)

I've quite experience in C/C++/Embedded Software Development. If you are interested please contact me directly ahmedmohamedgalal.94@gmail. So I can get a better idea about the project and your requirements.

$80 USD trong 6 ngày
(0 Nhận xét)

Hi, I am Bilal Tariq CEO of GRIMTECH ENGINEERING. representing my firm here on GURU! Please see my profile & portfolio for our job success and previous projects. Also, see attached work samples related to this job!  G Thêm

$55 USD trong 7 ngày
(0 Nhận xét)