Use the analogWrite() command to change the intensity of the LED. The program must have the following features:

1. Take user input from the Serial Monitor, accepting integer values from 0 to 255 2. Change the LED intensity by using the analogWrite command and the integer value entered 3. The LED intensity must not change until the user enters another integer

You will also need to use the Serial.begin() command, setting it to 9600 baud. Additionally, it might be beneficial to use the Serial.available() and Serial.read() commands.