: Use Serial.begin(baud_rate) to initialize communication.
(symbol: Bd) is a unit of measurement for symbol rate in telecommunications, representing the number of signaling events (such as voltage or frequency changes) that occur per second . Core Concept: Baud vs. Bit Rate : Use Serial
Baud Rate=System Clock FrequencyPrescaler×16Baud Rate equals the fraction with numerator System Clock Frequency and denominator Prescaler cross 16 end-fraction Factors for Choosing Speed : Use Serial
Common values used across hardware like Arduino and RS-232 include: : Use Serial