Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 162 · 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.🤖 Does a TV remote usually have a microcontroller inside? (a) Yes (b) No
2. 2.🤖 Does a hand pump usually have a microcontroller inside? (a) No (b) Yes
3. 3.🤖 When the main loop of a microcontroller program ends, what happens? (a) the board breaks (b) it deletes itself (c) it starts again (d) it stops forever
4. 4.🤖 Does a digital thermometer usually have a microcontroller inside? (a) Yes (b) No
5. 5.🤖 Microcontroller or laptop: which one has a built-in keyboard? (a) microcontroller (b) laptop
6. 6.🤖 What is a microcontroller? (a) a type of battery (b) a kind of bulb (c) a big desktop computer (d) a computer on one chip
7. 7.True or false: a microwave oven has no microcontroller inside. (a) False (b) True
8. 8.Which job is done by the voltage regulator? (a) keeps the voltage steady (b) connect sensors and LEDs (c) runs the program (d) restarts the program
9. 9.Which of these has no microcontroller inside? (a) a digital thermometer (b) a smart watch (c) a TV remote (d) a spinning top
10. 10.Which of these has no microcontroller inside? (a) a wind-up toy (b) a washing machine (c) a TV remote (d) a toy robot
11. 11.Which job is done by the power LED? (a) restarts the program (b) runs the program (c) brings power and code (d) shows the board is on
12. 12.🤖 Microcontroller or laptop: which one needs much more power? (a) microcontroller (b) laptop
13. 13.🧭 Which part of a microcontroller board shows the board is on? (a) the voltage regulator (b) the reset button (c) the USB port (d) the power LED
14. 14.True or false: a laptop uses very little power. (a) False (b) True
15. 15.True or false: a laptop needs much more power. (a) False (b) True
16. 16.🤖 Microcontroller or laptop: which one runs many apps at once? (a) microcontroller (b) laptop
17. 17.🧭 Which part of a microcontroller board runs the program? (a) the voltage regulator (b) the main chip (c) the power LED (d) the reset button
18. 18.True or false: a laptop has no screen of its own. (a) False (b) True
19. 19.Which of these usually has a microcontroller inside? (a) a bicycle bell (b) a wind-up toy (c) a digital thermometer (d) a plain wall switch
20. 20.🤖 Where does the board keep its program when the power is off? (a) flash memory (b) the resistor (c) the USB cable (d) the power LED
21. 21.Which of these usually has a microcontroller inside? (a) a smart watch (b) a candle (c) a wind-up toy (d) a spinning top
22. 22.🤖 Does a smart watch usually have a microcontroller inside? (a) No (b) Yes
23. 23.True or false: a microcontroller has a built-in keyboard. (a) True (b) False
24. 24.🤖 Microcontroller or laptop: which one runs one small program? (a) microcontroller (b) laptop
25. 25.Which of these usually has a microcontroller inside? (a) a spinning top (b) a digital alarm clock (c) a hand pump (d) a bicycle bell
26. 26.🧭 Which part of a microcontroller board brings power and code? (a) the main chip (b) the USB port (c) the pins (d) the voltage regulator
27. 27.🤖 Microcontroller or laptop: which one uses very little power? (a) microcontroller (b) laptop
28. 28.True or false: a TV remote usually has a microcontroller inside. (a) False (b) True
29. 29.🤖 Does a spinning top usually have a microcontroller inside? (a) Yes (b) No
30. 30.Which of these usually has a microcontroller inside? (a) a bicycle bell (b) a hand pump (c) a spinning top (d) a toy robot
31. 31.🤖 Does a digital alarm clock usually have a microcontroller inside? (a) No (b) Yes
32. 32.🤖 Does a toy robot usually have a microcontroller inside? (a) No (b) Yes
33. 33.Which job is done by the main chip? (a) restarts the program (b) connect sensors and LEDs (c) keeps the voltage steady (d) runs the program
34. 34.Which of these has no microcontroller inside? (a) a candle (b) a digital alarm clock (c) a TV remote (d) a microwave oven
35. 35.True or false: a laptop runs one small program. (a) False (b) True
36. 36.Which job is done by the reset button? (a) brings power and code (b) restarts the program (c) runs the program (d) shows the board is on
37. 37.Which of these has no microcontroller inside? (a) a toy robot (b) a smart watch (c) a washing machine (d) a hand pump
38. 38.True or false: a candle has no microcontroller inside. (a) True (b) False
39. 39.🤖 Which is a safe power source for a beginner microcontroller board? (a) a wall socket directly (b) USB or a 9 V battery (c) bare mains wires (d) a 230 V cable
40. 40.Which of these usually has a microcontroller inside? (a) a bicycle bell (b) a hand pump (c) a candle (d) a TV remote

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