Porting Libraries

Some libraries don't work out-of-the-box on UDOO Neo. This is due to different architectures and the consequent use of forbidden calls.

Hardware setup in constructor

On UDOO Neo, hardware setup and declaration outside setup() and loop() are forbidden.
So things like:

TM1637Display::TM1637Display(uint8_t pinClk, uint8_t pinDIO)
{
	// Copy the pin numbers
	m_pinClk = pinClk;
	m_pinDIO = pinDIO;
	
	// Set colon off by default? Or change the constructor?
	m_colon = false;
	
	// Set the pin direction and default value.
	// Both pins are set as inputs, allowing the pull-up resistors to pull them up
    pinMode(m_pinClk, INPUT);
    pinMode(m_pinDIO,INPUT);
	digitalWrite(m_pinClk, LOW);
	digitalWrite(m_pinDIO, LOW);
}

aren't correct.
This issue can be fixed by moving the digitalWrite and the pinMode statements into a begin() method that it'll be called from the setup() function.

PROGMEM structures

Typically Arduino boards don't have lots of RAM, so some sketch/library use PROGMEM structs to store data in flash memory and pgm_read_word functions to retrieve them.

const PROGMEM uint16_t DACLookup_FullSine_5Bit[32] =
{
  2048, 2447, 2831, 3185, 3495, 3750, 3939, 4056,
  4095, 4056, 3939, 3750, 3495, 3185, 2831, 2447,
  2048, 1648, 1264,  910,  600,  345,  156,   39,
     0,   39,  156,  345,  600,  910, 1264, 1648
};

UDOO Neo M4 processor don't have flash memory, but it can access lots of DDR RAM, so just get rid of those statements.