What is the purpose of digital pins on an Arduino?

Which function is used to set a digital pin as an OUTPUT on an Arduino?

What voltage level represents a HIGH signal on an Arduino digital pin?

What is the maximum number of digital pins available on an Arduino Uno?

What command is used to write a HIGH signal to a digital pin on an Arduino?

In Arduino programming, what does the `digitalRead()` function do?

What type of signal can be read by a digital pin on an Arduino?

What happens when you connect a digital pin to a voltage higher than its maximum rating?

Which Arduino board has both 5V and 3.3V digital pins?

What is the default mode of digital pins on an Arduino when the board is powered on?

What is the primary purpose of using a multiplexer with a 7-segment display in an Arduino project?

In an embedded system, which memory type is fastest for read and write operations?

When using an IR sensor, what kind of output does it typically provide to the Arduino?

What are the primary types of memory used in embedded systems?

Which component is commonly used to interface an Arduino with a 7-segment display?

Which type of memory in an embedded system is typically non-volatile and can be electrically erased and reprogrammed?

In an Arduino-based project, which type of memory is used to store the program code?

What is the primary function of an IR sensor in an Arduino project?

What does a 7-segment display primarily indicate?