Remedial Quiz # 1 Arduino

What does a microcontroller typically contain?

• only a cpu and ram

• a cpu, read-only memory, random access memory, and various i/o busses

• just a cpu and various i/o busses

• only read-only memory and random-access memory

It is the heart of the Arduino UNO

• 16MHZ Resonator

• ATmega328P Controller

• Digital I/O

• LM358

What are the two functions of USB - B Socket

• Connect the Computer via USB & To Power the Arduino

• To connect to the computer through a USB port and to power external devices directly

• To connect to the internet via Wi-Fi and to control external devices

• To program other microcontrollers and to provide internet connectivity

What is the purpose of the DC barrel jack on the Arduino UNO?

• To connect external sensors to the board

• To program the Arduino UNO with new firmware

• To supply power to the Arduino UNO, accepting 7-12V input

• To connect the Arduino UNO to a computer for data transfer

How many digital I/O pins Arduino have?

• 12

• 13

• 14

• 15

What do the 3.3V, 5V, GND, and Vin pins on the Arduino UNO do?

• 3.3V powers the board, 5V is for sensors, GND is for power, and Vin is for connecting to a computer.

• 3.3V provides 5V power, 5V is for external components, GND is for input voltage, and Vin is for grounding.

• 3.3V and 5V are for programming, GND is for connecting sensors, and Vin is for external power.

• 3.3V provides 3.3V power, 5V provides 5V power, GND is for ground, and Vin supplies power to the board.

Resets the Arduino, restarting the program from the beginning.

• Reset Pins

• Power Pins

• Restart Pins

• Sleep Pins

Used to read sensor values like temperature or light intensity

• Serial Communication (RX and TX)

• Pulse Width Modulation (PWM) Output

• Analog Input Pins

• Ground pins

Commonly used to control the brightness of LEDs or the speed of motors.

• Serial Communication (RX and TX)

• Pulse Width Modulation (PWM) Output

• Analog Input Pins

• Ground pins

What is the purpose of the reference voltage pin on the Arduino UNO?

• To supply power to external components

• To provide a reference voltage for analog-to-digital conversion

• To connect to ground

• To program the Arduino board