Revision Arduino

What is the mainboard we use in Arduino projects?

• a) Raspberry Pi

• b) Arduino Uno

• c) Micro:bit

• d) Breadboard

What is the USB port on the Arduino used for?

• a) To charge the Arduino

• b) To send code from the computer to the Arduino

• c) To connect sensors

• d) To power external motors

What is the power jack used for?

• a) To connect a battery (7V–12V)

• b) To store code

• c) To program the Arduino

• d) To make sounds

What is the small chip on the Arduino board called, and what does it do?

• a) Resistor – It limits current

• b) Buzzer – It makes sound

• c) Microcontroller – It stores code and controls the circuit

• d) Sensor – It detects light

What are header pins used for on the Arduino?

• a) To store power

• b) To connect external components

• c) To hold the board in place

• d) To program the Arduino

What are digital pins used for?

• a) To store data

• b) To read and send digital signals (0 or 1)

• c) To power LEDs

• d) To make sound

What are analog pins used for?

• a) To read a range of values (0-1023) from sensors

• b) To send digital signals

• c) To store code

• d) To make LEDs blink

What do power pins (5V, 3.3V, GND) do?

• a) Control LED brightness

• b) Provide power to components

• c) Store information

• d) Detect sound

What is the difference between digital and analog signals?

• a) Digital is always 0 or 1, while analog can be a range of values

• b) Analog is faster than digital

• c) Digital is used for power, and analog is for programming

• d) They are the same

How do we connect components without soldering?

• a) Using a breadboard

• b) Using glue

• c) Using a screwdriver

• d) By taping wires together