WorksheetsMicrocontroller and Arduino Quiz
Total questions: 15
Worksheet time: 8mins
Which of the following is true about a microcontroller?
It has CPU, memory, and I/O ports on a single chip
It only has a CPU
It is only used in computers
It cannot control hardware directly
A microprocessor differs from a microcontroller because:
Microprocessor has inbuilt I/O and memory
Microprocessor is mainly used for general-purpose computing
Microcontroller cannot control external devices
Both are the same
Arduino Uno is based on which microcontroller?
ATmega16
ATmega328P
8051
ARM Cortex M4
In an LED series connection, the total voltage required is:
Same as one LED
Sum of voltages of all LEDs
Average of LED voltages
Zero
In an LED parallel connection, the total voltage required is:
Same as one LED
Sum of voltages of all LEDs
Twice the voltage of one LED
Zero
Which of the following is a digital pin feature on Arduino Uno?
Can read continuous range of values
Can only be HIGH or LOW (1 or 0)
Cannot be used as output
Only works with analog signals
On Arduino Uno, which pins are used as Analog input pins?
A0 – A5
D0 – D13
Only D2 and D3
Vin and GND
Which pin provides 5V regulated output on Arduino Uno?
Vin
5V pin
3.3V pin
GND
The GND pin on Arduino is used for:
Supplying power
Resetting Arduino
Completing the circuit (ground)
Connecting to USB
Which pin on Arduino is used to provide positive power?
5V
GND
Vin
AREF
The digitalWrite(LED_BUILTIN, HIGH) command:
Turns the LED off
Turns the LED on
Reads the LED value
Resets the Arduino
If you connect 3 LEDs in parallel, each requiring 2V, with a 5V supply, the supply voltage required is:
2V
5V
6V
7V
Which Arduino pin provides 3.3V regulated output?
Vin
3.3V
5V
AREF
Which is NOT a typical application of a microcontroller?
Washing machine control
Air conditioner remote
Personal computer processor
Microwave oven control
The built-in LED on Arduino Uno is connected to which pin?
D2
D5
D13
A0
