Missing components and comments

Open Kjos opened this issue 9 years ago • 1 comments

Hi! Interesting project you made here. I couldn't find any other sources for inaudible communication with Android except yours and it's nice you used the onboard ADC to minimize the amount of components. The link to the microphone is no longer for sale however and that link doesn't specify the component IDs so I can't find any substitutes that could work. Do you happen to know any Chinese microphones that work in the needed frequency? I've been told to look at MEMS mics. I've looked at the source, but I'm not sure how you calculate the receiving frequency for the microphone. IN_TONES seems to name the frequencies but the variable is unused. Also, you used an 8mhz Arduino, right?

Thanks for sharing with the community, I starred your project of course!

Jun 02 '16 09:06 Kjos

Would this be a suitable microphone? It states it samples between 20hz-20khz

Jun 02 '16 10:06 Kjos