Now, Paolo, fill the blackboard with that sentence.
If you want a reliable serial communication with AVRs
do not rely on the internal RC clock.
If you want a reliable serial communication with AVRs
do not rely on the internal RC clock.
If you want a reliable serial communication with AVRs
do not rely on the internal RC clock.
If you want a reliable serial communication with AVRs
do not rely on the internal RC clock.
If you want a reliable serial communication with AVRs
do not rely on the internal RC clock.
:-)