encoder velocity (counts/s) remains zero in serial monitor whereas encoder position (# counts) is running properly

exercise in Arduino Engineering kit / concepts/controlling motors/motor test encoding exercise.
also following message :
Invalid library found in C:\Program Files (x86)\Arduino\libraries\MKRMotorCarrier: no headers files (.h) found in C:\Program Files (x86)\Arduino\libraries\MKRMotorCarrier
Invalid library found in C:\Program Files (x86)\Arduino\libraries\MKRMotorCarrier: no headers files (.h) found in C:\Program Files (x86)\Arduino\libraries\MKRMotorCarrier

Questa domanda è chiusa.

Richiesto:

il 9 Gen 2019

Chiuso:

il 20 Ago 2021

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