https://forum.pjrc.com/threads/33218-Teensy-audio-and-FastLED-SPI
This test checks if software emulated SPI (using pins 0 & 1) works the same as hardware SPI (using pin 7 & 14). While this test appears to work, pins 7 & 14 may not be able to drive wires as long as pins 0 & 1, due to faster signals.
