Input/Output

analogGetReference

Since 4.1.0:

This feature is only present in 4.1.0 and later on the 4.x LTS branch, and in 5.3.0 and later in the 5.x developer prevent branch.

Gets the ADC reference voltage.

Returns:

• AdcReference::INTERNAL
• AdcReference::VCC

Note that if set to DEFAULT, the actual reference is returned, not AdcReference::DEFAULT.

// PROTOTYPE
AdcReference analogGetReference(void);

// EXAPLE
if (analogGetReference() == AdcReference::INTERNAL) {
  // Do something
}