$7)$ What is the function that is used to set a pin as an output in the Arduino environment?$8)$ Explain what the baud rate is in the context of serial communication:$9)$ What is the command$/$function that initializes the serial communication with a baud rate of $9600?10)$What is the command$/$function used to write text to theSerial Monitor with a new line at the end of the text?$11)$What is the command$/$function that initializes a PWM channel?What is the command$/$function that outputs a new duty cycle$12)$ to a PWM channel?$13)$How many input pins can be used as analog inputs on anESP$32?$