Flow My LED Tears

[pixie]

@zranger1 came up with a detection method here:

@zranger1

// Attempt to detect the Pixelblaze variant the pattern is
// currently running on, based on differences in capacitance 
// returned by touchRead on the "orange LED" GPIO Pin (GPIO12)
//
// Returns: 0 - Pixelblaze 2, 1 - Pixelblaze 3, 2 - Pixelblaze Nano
function getHardwareType() {
  var hw = 0;   // default to pb2
  
  var e = touchRead(12);
  if (e == 0) { hw = 2; }
  else if (e >= 0.99) hw = 1;
  
  return hw;
}