Design and development of Arduino based Digital audio recorder

I can do your job within a time limit.

That's an interesting project. I'm a experienced arduino and raspberry pi developer. I think that won't be very difficult for me to do.

Dear Friend, We have good experience in embedded software and design, It is not only our job but passion. We have worked on from basic hardware to quadcopters. Also have lot of happy and overwhelmed clients, we try to deliver more than expected. Yes we can provide you PCB for interfacing with arduino. It is possible to get 8KHz sampling rate we will get as much possible as it can be with arduino. So yes we can do this work as per your satisfaction, Consider us :) Thanks & Have a good day. Any queries and if u want to see more of our work, Please feel free to ask.

I have worked on many different projects using Arduino. It will only require an amplifier circuit with a mic and an SD card. Making a PCB goes without saying, you didn't need to specify that, but if you are willing to pay about 1k more and wait for few more days to get the project, I can get you a professional looking PCB with masking and everything and about the sample rate, you will get any sample above 8k. You can decide and tell me that when you contact me. You may message me if you are interested in my bid.

I can do this project...please let me know more details. I can develop the circuit, make PCB and delver by curior

I have more than five years of experience in working with arduino and numerous other platforms like raspberry pi, intel edision etc, and I have worked on similar projects before hence I am confident I will be able to deliver your project on time and within your budget. Moreover if you need any help in the future you can always rely on my expertise in the field. Though I am new to freelancer website, I am not new to the field, so you can rest assured you wont be facing any difficulties from my end. Looking forward to work with you.