When you give advice for something, maybe you should read the datasheet.
Here is your opportunity to do so.
QUOTE from the datasheet:
'The ADC has a separate analog supply voltage pin, AVCC. AVCC must not differ more
than ± 0.3V from VCC. See the paragraph ADC Noise Canceler on page 198 on how to
connect this pin.
Internal reference voltages of nominally 2.56V or AVCC are provided On-chip. The voltage
reference may be externally decoupled at the AREF pin by a capacitor for better
noise performance.'
Therefore AREF should only be connected to a capacitor (as with most AVRs) if the reference should be the same as supply.
If it is connected to the supply, it might kill the chip or the reference.
Just my opinion.
This has been discussed several times before.
(and I am probably not as rude as some others in this forum)
Maybe I should appologise in advance!?
Sorry for the commented correction and nobody even stole copper this time.
Have a great week!
Hubert
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