Has anyone else had issues with certain led chipsets when using a teensy 3.1

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Has anyone else had issues with certain led chipsets when using a teensy 3.1 audio shield? Noticing my fft object is all zeros after instantiating a P9813 strand but if I comment out the addLeds call I see data. I was going to try a 2811 strand tonight to see if it’s specific to that type of strand.

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Are you running out of RAM, and the instantiation of the leds array is stomping on the ram used by the fft object?

3

Its possible. I confirmed that the 2811 strand I have doesn’t exhibit the same problem and it’s 60 pixels long vs 50 for the coolneon strand. I wonder if it has something to do with SPI…

4

Does the teensy 3.1 audio shield use SPI?