Im kinda new to Arduino but i have a general knowledge on what to add and change in the sketch in compared to the Arduino and the breadboard attached.
my question......i would like to have a couple of sensors/switches that when attached it activates a little cylinder speaker alarming me when for say a door opens and the light turns on. example sensors/switches are a photo resistor, microswitch etc.
i know having the speaker as an output and having the sensors as input....but when i do digital write or analog write....do i need to do anything different? this is the part that confuses me
i appreciate your help