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Thanks, I wouldn't have stumbled upon this by myself probably. Funny thing is that my program worked only WITH usb connection. Also I already have software SPI. Still haven't looked further in my issue... In fact my Teensy is probably damaged anyway and won't allow to reprogram it %-]

In maybe a week I'll try to downgrade my FastLED version. Maybe it will resolve problem with required usb connection. Don't know how but maybe)

Not at all... Only thing I edited in libraries - added printf() to Serial sometime ago.

Not sure which of my problems you are having, but try forcing software SPI implementation in FastLED. Using non-SPI pins should give same results.

This is my code. #include <Audio.h> // GUItool: begin automatically generated code AudioInputI2S i2s1; //xy=136,186 AudioAnalyzeFFT1024 fft1024_1; //xy=364,229 AudioOutputI2S i2s2; //xy=425,139 AudioConnection patchCord1(i2s1, 0, i2s2...

I discovered that when I connect my battery-powered Teensy to Mac with usb cable WITH CUT RED WIRE, it works fine. I commented out any calls to Serial and don't have infinite loop in setup() waiting for it. It is hard to post my code right now, sorry. Any fast ideas?

Hi Paul! Actually I have two different battery holders for Teensy and LEDs.

I was able to drive leds from 3.6V, but my setup was hanging up anyway. I am at music festival and there is no logic shifter around, BUT forcing software SPI fixed the problem! All good but now I have different one - everything working when Teensy powered from notebook, but from 4.8V battery...

Yeah, I have found in Adafruit Dotstar (their name for apa102) guide that data and clock should be 5v too. Thank you very much for pointing this out!

Hi! I do not have a SD card indeed and have currently 9 leds. Teensy and leds are powered from two different battery holders which have 4.5 and 4.8V voltage. Clock and data pins are connected directly to leds without the logic converter. So it is likely my problem? Clock and data pins voltage...

Forgot to mention that I have 220uF capacitor in between 5V and ground in LED power line (will replace it to 1500uF today) and 440 Ohm resistor (220+220 actually) in between pin 7 and LED data pad. Took it from Adafruit NeoPixels uberguide, "Powering NeoPixels" section. I guess it is more or...

Hi! I have a Teensy 3.2 with soldered Audio board (Teensy is atop); other connections I have: to MIC and GND pins of audio board soldered pins, then wires, then audio jack to 7 and 13 pins on the bottom of the Audio board soldered wires which lead to data input and clock input pads of APA102...

Yes! I soldered audio jack, inserted microphone in and it works! And pretty well :-) Cheap random lavalier model: Panasonic RP-VC201

That is actually so. I'm just gradually testing that my soldering works, not building a tutorial. Excellent! Thought about this explanation but in my case it is better to double check :D Thanks!

After a lot of frustration I somehow finally learned to solder. Whew. Now Tutorial 1 02 works, but all I see in Serial monitor - "Knob (pin A2|A3) - value", lots of messages like this. I have nothing connected to Teensy + Audio board. Is this normal?

Oh. You are right, I thought that simply inserting them is enough for prototyping. Thanks!

Here is photo of what I have: http://take.ms/E84yD Besides stacking Teensy and Audio board I soldered pins to MIC and GND on Audio board and connected them to audio jack of lavalier microphone. Those pins does not touch Teensy. Verifying if my mic works this way is next step. Why should I have...

I don't have Audio tutorial parts actually but I was hoping to get Beeps in serial monitor just to see that something works. But there is nothing. Basically I just connected Audio board and Teensy via header pins (Teensy is on top, pins are double insulated like these...

Maybe I can solder microphone audio jack directly to MIC+GND pins and it will work?

Thanks anyway :)

Well, I had to order Teensy from another store and they didn't have this mic. And then I found that for most of the mics I could buy near me (I'm outside of the USA) I can't even find datasheet. Maybe I just don't know proper stores here, but anyway, I wasn't bothered much since I was going to...

Thanks for your reply. Oh. So to connect some external microphone I will have to solder appropriate jack?

Hello again. Does 3.5" input jack on Audio board have "Plug in Power"? It is required for some external microphones. Also it may be useful to know - is this jack wired OMTP way or CTIA / AHJ way?

Oh. Not so promising then! I will follow your advice. So, Teensy, Audio board, two 14x1-D pins and microphone? edit: um, my time requirements and your shipping prices are quite incompatible it turns out! I've ordered Teensy and Audio board from another seller. No double insulator pins...

Hm, can't found SPL acoustic overload point of this mic. I am afraid that sound about ~120dB will be too much for it... https://www.tindie.com/products/onehorse/ics43432-i2s-digital-microphone/ looks much more promising. And I won't need Audio Board for it, right? Thank you for input about...

Hi! I am looking to build yet-another sound-reactive wearable project (t-shirt with leds) for upcoming trance music festival :-) This is my first experience with Arduino's or microelectronics at all. No wonder I have a list of questions I need to find answers for to build it. I am trying to...