What type of serial communication is a clocked system where timing is agreed upon beforehand?
Synchronous
What type of serial communication relies on start and stop bits for synchronization and defining data frames?
Asynchronous
What is the dedicated hardware peripheral on the AVR chip for serial communication(
USART-Universal Synchronous and Asynchronous Receiver and Transmitter
Why is a DC blocking capacitor required when connecting a speaker to an AVR pin?
It allows the AC audio signal to pass through while blocking the constant DC voltage, preventing the speaker from drawing too much current from the AVR pin