digitalRead Ref voltage

Hi All,

When you use the digitalRead function, using a default reference voltage, if the supply voltage is, say, 4.6 volts, is this the voltage which is used for the ADC?

Can you read through your question again, please, and make any corrections you feel necessary?

Did you mean analogRead()? The digitalRead() function has nothing to do with Aref.

The 'default' analogRead() reference voltage is the supply voltage.