I'm brandnew to embedded programming, although I've done some minor programming before. Since I have no idea yet, how the arduino works, which boards and microprocessors I need etc., I will read this document first: http://math.hws.edu/vaughn/cpsc/226/docs/askmanual.pdf.
However, I've been searching for similar projects like mine and found some existing solutions - not exactly the same, but similar.
What I want to do is a simple, cheap and tiny Wifi audio sender module. Usually the price of existing solutions is too high for this project, since I want to install 5-10 in my house for speech recognition. The module should only contiuously send the received audio signal to a PC running linux, which then processes the signals.
So I was wondering:
.) What is the cheapest/smallest board I can use for that project?
.) Which cheap wifi modules and microphones compatible with arduino are available?
.) Is it possible to stay below 20 Dollar per board?
Or plug each receiver's output into a mixer, and feed the mixer output into the audio card on the PC.
thank you for that option, but to be honest: that was not what I was looking for. I would need a solution, where each module is very cheap and very small.
I would have the approach to install the raspberry pi with a wifi dongle and a microphone - that would be very easy for me I guess. I haven't used a mic on the raspberry so far, but I think thats not a difficult task. The thing is, the rpi (Model A) costs around 25 dollars, a wifi dongle 10 dollars, a power supply 5 dollars, a mic 5-10 dollars and a case 5 dollars, which is around 50-60 dollar for each microphone station. I would love to have around 10 stations in my house which would cost 600 dollars. Thats not cost efficient, and I would use my other option to apply background speech recognition on my phone which I carry with me all the time.
Then I heard from arduino and I thought this would be a nice option to get a cheap, small board which is also fun to play with. I know 20 dollars is very hard to achieve, but thats the goal at the moment.