Hi,
It seems from some posts that to get stabler analogRead voltages, it is best to use analogReference(INTERNAL) for Teensy 3.0 using TeensyDuino. Using a voltmeter, the ARef seems to be 3.3V. Is this a different regulator than using no call to analogReference? Is it in fact 3.3V or something else, and is it more stable than using the default? (I'm assuming the default is 3.3V as in the 3.3V pin, not 5 V off the USB entry point?)
Basically, I'm confused on what the difference between INTERNAL and no call is...
Thanks for any feedback...
It seems from some posts that to get stabler analogRead voltages, it is best to use analogReference(INTERNAL) for Teensy 3.0 using TeensyDuino. Using a voltmeter, the ARef seems to be 3.3V. Is this a different regulator than using no call to analogReference? Is it in fact 3.3V or something else, and is it more stable than using the default? (I'm assuming the default is 3.3V as in the 3.3V pin, not 5 V off the USB entry point?)
Basically, I'm confused on what the difference between INTERNAL and no call is...
Thanks for any feedback...