Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 590 · 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.True or false: a digital alarm clock usually has a microcontroller inside. (a) False (b) True
2. 2.🤖 Microcontroller or laptop: which one has a built-in keyboard? (a) laptop (b) microcontroller
3. 3.🧭 Which part of a microcontroller board runs the program? (a) the reset button (b) the USB port (c) the voltage regulator (d) the main chip
4. 4.🧭 Which part of a microcontroller board restarts the program? (a) the power LED (b) the voltage regulator (c) the main chip (d) the reset button
5. 5.Which of these has no microcontroller inside? (a) a smart watch (b) a candle (c) a toy robot (d) a washing machine
6. 6.Which of these has no microcontroller inside? (a) a TV remote (b) a microwave oven (c) a washing machine (d) a bicycle bell
7. 7.🤖 What is a microcontroller? (a) a type of battery (b) a big desktop computer (c) a kind of bulb (d) a computer on one chip
8. 8.Which job is done by the pins? (a) keeps the voltage steady (b) connect sensors and LEDs (c) shows the board is on (d) runs the program
9. 9.🤖 Which is a safe power source for a beginner microcontroller board? (a) a 230 V cable (b) bare mains wires (c) USB or a 9 V battery (d) a wall socket directly
10. 10.🤖 Does a plain wall switch usually have a microcontroller inside? (a) Yes (b) No
11. 11.Which job is done by the USB port? (a) shows the board is on (b) connect sensors and LEDs (c) brings power and code (d) restarts the program
12. 12.Which job is done by the voltage regulator? (a) keeps the voltage steady (b) connect sensors and LEDs (c) brings power and code (d) runs the program
13. 13.🤖 Does a microwave oven usually have a microcontroller inside? (a) Yes (b) No
14. 14.True or false: a laptop runs many apps at once. (a) True (b) False
15. 15.🤖 Microcontroller or laptop: which one needs much more power? (a) laptop (b) microcontroller
16. 16.True or false: a spinning top has no microcontroller inside. (a) True (b) False
17. 17.True or false: a TV remote usually has a microcontroller inside. (a) True (b) False
18. 18.Which of these usually has a microcontroller inside? (a) a bicycle bell (b) a spinning top (c) a digital alarm clock (d) a wind-up toy
19. 19.🤖 Does a toy robot usually have a microcontroller inside? (a) Yes (b) No
20. 20.🤖 How does a new program get onto a microcontroller board? (a) sent by sound (b) typed on the chip (c) drawn with a pen (d) uploaded over USB
21. 21.True or false: a microcontroller uses very little power. (a) False (b) True
22. 22.True or false: a laptop has no screen of its own. (a) False (b) True
23. 23.🤖 Microcontroller or laptop: which one has no screen of its own? (a) microcontroller (b) laptop
24. 24.True or false: a hand pump usually has a microcontroller inside. (a) True (b) False
25. 25.🧭 Which part of a microcontroller board shows the board is on? (a) the power LED (b) the reset button (c) the pins (d) the voltage regulator
26. 26.🤖 Does a wind-up toy usually have a microcontroller inside? (a) No (b) Yes
27. 27.🤖 Does a hand pump usually have a microcontroller inside? (a) No (b) Yes
28. 28.🧭 Which part of a microcontroller board brings power and code? (a) the voltage regulator (b) the main chip (c) the USB port (d) the pins
29. 29.Which of these has no microcontroller inside? (a) a washing machine (b) a toy robot (c) a digital thermometer (d) a plain wall switch
30. 30.🧭 Which part of a microcontroller board connect sensors and LEDs? (a) the main chip (b) the voltage regulator (c) the pins (d) the USB port
31. 31.True or false: a microcontroller has a built-in keyboard. (a) False (b) True
32. 32.True or false: a digital thermometer has no microcontroller inside. (a) True (b) False
33. 33.🤖 Microcontroller or laptop: which one runs one small program? (a) laptop (b) microcontroller
34. 34.Which of these usually has a microcontroller inside? (a) a wind-up toy (b) a microwave oven (c) a hand pump (d) a spinning top
35. 35.🤖 Does a TV remote usually have a microcontroller inside? (a) Yes (b) No
36. 36.Which of these has no microcontroller inside? (a) a washing machine (b) a digital alarm clock (c) a toy robot (d) a spinning top
37. 37.🤖 Does a bicycle bell usually have a microcontroller inside? (a) Yes (b) No
38. 38.🤖 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
39. 39.Which of these has no microcontroller inside? (a) a wind-up toy (b) a washing machine (c) a smart watch (d) a toy robot
40. 40.🤖 Microcontroller or laptop: which one uses very little power? (a) laptop (b) microcontroller

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