30-Day Challenge: Quiz 3 of 6 Copy

Hint

Hint:
Regarding the pinMode() function:
An INPUT can be thought of as something that either a human or the outside world would touch and is data sent into the board. Think Keyboard/Mouse, buttons/sensors. However, an OUTPUT is information sent out by the board. (Think computer/phone screens, music speakers, etc). For example, when you push buttons on a keyboard, the computer will OUTPUT information onto the screen in front of you.

Regarding the digitalWrite() function:
HIGH (In the Arduino IDE) is the same as sending 5V over that pin, supplying it with power. LOW, on the other hand, sends a GROUND (aka GND for short) signal over the pin, removing that power.