(still pre-having-arudino questions, but i'm researching like crazy)... So, would these sensors ( http://www.analog.com/en/subCat/0,2879,760%255F1077%255F0%255F%255F0%255F,00.html ) be able to hook up to Arduino? And what's the current status of audio input/output for the board? I know that analog output is faster since a recent version, and there have been some examples of generating tones. I'm interested in the possibility of controlling some audio equipment & synths, and possibly outputting simple music. Any ideas in that area? Also, what sort of temp. sensor would be best, if any is available? THanks.
For touch sensors, Qprox makes capacitance-based touch ones, and they have a great little evaluation kit for them: $20 at Digikey.
Re Audio, you can manage level-detection and simple tone generation, and perhaps even the occasional sample, if it was small enough. You are not going to be able to do anything significant like recording, mixing, reverb or effects on the Arduino itself. And why would you... when there are lots of outboard chips to take care of that for you. The Atmega processor isn't meant to be DSP, it's meant to be a cheap 8-bit process controller. You can get outboard chips that do the processing, and you could use the Atmega to control them. Here's an example. ST Microelectronics makes the STA-013... and then there is the VS1001K by VLSI. FTDI also makes an interesting USB host controller package that also integrates an MP3 chip.
D
PS: what might be very cool is a plug-in MP3 player shield for the Arduino... you use the Arduino for the control and USB connection, and the shield has the interface, MMIC card storage and the MP3 decoder.
Someone just has to design it..
I'm not looking to do any serious audio processing - more like seeing Arduino as a controller for some components I have (a Headrush loop pedal, magicstomp, danelectro stuff...), possibly wiring it into a danelectro pedal to control that. Thanks for all the info