Physics Unit 1: Sensor Technologies and Applications Quiz

Environmental sensors measure various parameters like pollutants, humidity, and temperature to assess the quality of air and soil.

The delay() function pauses the program for a specified amount of time in milliseconds.

analogRead() reads analog voltage values, while digitalRead() reads digital signals (HIGH or LOW).

<p>Global variables can be accessed from any part of the program, while local variables are only accessible within the function they are declared in. Global variables facilitate data sharing, while local variables help in memory management.</p> Signup and view all the answers

<p>In Arduino, variables are defined by specifying the data type and a unique name. Data types in Arduino include int, float, char, and boolean.</p> Signup and view all the answers

<p>The 'unsigned long' data type in Arduino can store positive numbers from 0 to 4,294,967,295. It is often used to handle large numbers or for time-related calculations.</p> Signup and view all the answers