Hello,
I want to have led strings (driven by a modified OctoWS2811) react to sound coming from an Electret Microphone. I'd be using the Audio board to process the audio and so far I don't seem to be able to get it to work.
1) Can I connect an electret microphone directly to the Mic input (and gnd) of the audio board? Do I need a preamp?
2) What are the pins that I must absolutely connect to the teensy? I was thinking of connecting 3.3V, GND, and pins 18,19 (the I2C connection). If I only want to get the FFT results from the MIC input, do I need to connect other pins (like the 5 pins I2S bus which would run into conflict with pins used by OctoWS2811)?
3) Is it possible to have an automatic gain on the mic input?
Thanks!
Sylvain
I want to have led strings (driven by a modified OctoWS2811) react to sound coming from an Electret Microphone. I'd be using the Audio board to process the audio and so far I don't seem to be able to get it to work.
1) Can I connect an electret microphone directly to the Mic input (and gnd) of the audio board? Do I need a preamp?
2) What are the pins that I must absolutely connect to the teensy? I was thinking of connecting 3.3V, GND, and pins 18,19 (the I2C connection). If I only want to get the FFT results from the MIC input, do I need to connect other pins (like the 5 pins I2S bus which would run into conflict with pins used by OctoWS2811)?
3) Is it possible to have an automatic gain on the mic input?
Thanks!
Sylvain