Understanding Push Buttons and Buzzers

What are the two new components introduced in this lesson?

• Transistor and Diode

• Resistor and Capacitor

• Push-button and Buzzer

• Photoresistor and LED

How many legs does a push-button have?

• Two

• Three

• Four

• Five

What happens when a push-button is pressed?

• It disconnects the circuit

• It connects all four legs

• It decreases voltage

• It increases resistance

What is the main similarity between a buzzer and an LED?

• Both have four legs

• Both are used for sound

• Both require a resistor

• Both have an anode and cathode

In the context of Arduino, what does a digital pin detect?

• Current flow

• High or low states

• Analog signals

• Voltage levels

What is the purpose of using a resistor with a push-button in a circuit?

• To connect to the ground

• To decrease voltage

• To prevent short circuits

• To increase current

What is the function of the Arduino timer in the simple timer project?

• To adjust resistance

• To measure voltage

• To count time intervals

• To control current

What happens when the timer reaches the set time in the Arduino project?

• The buzzer sounds

• The LED turns off

• The circuit resets

• The voltage increases

Why is it important to set the buzzer to low after it sounds?

• To prevent overheating

• To save power

• To stop it from running indefinitely

• To increase sound quality

What is a limitation of the simple timer project discussed in the video?

• It cannot be reset

• It requires too many components

• The time duration cannot be changed after uploading

• It only works with LEDs