Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 751 · 40 questions

Remember (One chip, one job): Microcontroller = processor + memory + input/output pins on one chip. Board parts: USB port (power and code), pins, reset button, power LED, main chip, voltage regulator. Write the program → upload over USB → it runs its loop for ever; power by USB or a small battery.

1. 1.🤖 Where does the board keep its program when the power is off? (a) the power LED (b) flash memory (c) the resistor (d) the USB cable
2. 2.True or false: a laptop has a built-in keyboard. (a) True (b) False
3. 3.🤖 Which is a safe power source for a beginner microcontroller board? (a) a 230 V cable (b) USB or a 9 V battery (c) bare mains wires (d) a wall socket directly
4. 4.Which job is done by the voltage regulator? (a) keeps the voltage steady (b) brings power and code (c) restarts the program (d) runs the program
5. 5.🤖 Does a bicycle bell usually have a microcontroller inside? (a) No (b) Yes
6. 6.True or false: a laptop has no screen of its own. (a) False (b) True
7. 7.Which of these usually has a microcontroller inside? (a) a candle (b) a digital alarm clock (c) a bicycle bell (d) a plain wall switch
8. 8.Which of these has no microcontroller inside? (a) a bicycle bell (b) a washing machine (c) a toy robot (d) a digital thermometer
9. 9.Which of these has no microcontroller inside? (a) a washing machine (b) a toy robot (c) a hand pump (d) a digital thermometer
10. 10.🤖 Microcontroller or laptop: which one runs one small program? (a) laptop (b) microcontroller
11. 11.🤖 Microcontroller or laptop: which one has no screen of its own? (a) laptop (b) microcontroller
12. 12.🤖 When the main loop of a microcontroller program ends, what happens? (a) it deletes itself (b) it stops forever (c) it starts again (d) the board breaks
13. 13.Which of these usually has a microcontroller inside? (a) a spinning top (b) a bicycle bell (c) a candle (d) a toy robot
14. 14.🤖 How does a new program get onto a microcontroller board? (a) sent by sound (b) drawn with a pen (c) typed on the chip (d) uploaded over USB
15. 15.Which of these usually has a microcontroller inside? (a) a plain wall switch (b) a washing machine (c) a wind-up toy (d) a hand pump
16. 16.🤖 Does a TV remote usually have a microcontroller inside? (a) No (b) Yes
17. 17.True or false: a hand pump usually has a microcontroller inside. (a) True (b) False
18. 18.Which of these has no microcontroller inside? (a) a smart watch (b) a digital alarm clock (c) a washing machine (d) a wind-up toy
19. 19.🧭 Which part of a microcontroller board runs the program? (a) the pins (b) the voltage regulator (c) the main chip (d) the USB port
20. 20.Which job is done by the USB port? (a) runs the program (b) brings power and code (c) restarts the program (d) connect sensors and LEDs
21. 21.True or false: a wind-up toy usually has a microcontroller inside. (a) True (b) False
22. 22.🧭 Which part of a microcontroller board connect sensors and LEDs? (a) the USB port (b) the reset button (c) the voltage regulator (d) the pins
23. 23.🤖 Microcontroller or laptop: which one uses very little power? (a) microcontroller (b) laptop
24. 24.Which job is done by the reset button? (a) shows the board is on (b) runs the program (c) restarts the program (d) connect sensors and LEDs
25. 25.Which of these has no microcontroller inside? (a) a washing machine (b) a digital alarm clock (c) a toy robot (d) a spinning top
26. 26.True or false: a washing machine usually has a microcontroller inside. (a) False (b) True
27. 27.True or false: a laptop runs one small program. (a) False (b) True
28. 28.Which of these usually has a microcontroller inside? (a) a wind-up toy (b) a candle (c) a spinning top (d) a TV remote
29. 29.🧭 Which part of a microcontroller board shows the board is on? (a) the voltage regulator (b) the pins (c) the power LED (d) the reset button
30. 30.Which job is done by the pins? (a) brings power and code (b) shows the board is on (c) keeps the voltage steady (d) connect sensors and LEDs
31. 31.🤖 Does a toy robot usually have a microcontroller inside? (a) No (b) Yes
32. 32.Which of these usually has a microcontroller inside? (a) a spinning top (b) a hand pump (c) a candle (d) a smart watch
33. 33.🤖 Microcontroller or laptop: which one has a built-in keyboard? (a) laptop (b) microcontroller
34. 34.🧭 Which part of a microcontroller board brings power and code? (a) the main chip (b) the USB port (c) the voltage regulator (d) the reset button
35. 35.True or false: a digital thermometer has no microcontroller inside. (a) True (b) False
36. 36.🤖 What is a microcontroller? (a) a computer on one chip (b) a big desktop computer (c) a kind of bulb (d) a type of battery
37. 37.Which job is done by the power LED? (a) restarts the program (b) brings power and code (c) shows the board is on (d) keeps the voltage steady
38. 38.True or false: a microcontroller uses very little power. (a) True (b) False
39. 39.🧭 Which part of a microcontroller board keeps the voltage steady? (a) the pins (b) the power LED (c) the voltage regulator (d) the reset button
40. 40.Which of these usually has a microcontroller inside? (a) a digital thermometer (b) a wind-up toy (c) a plain wall switch (d) a bicycle bell

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