Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 66 · 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.🤖 What is a microcontroller? (a) a computer on one chip (b) a type of battery (c) a big desktop computer (d) a kind of bulb
2. 2.Which job is done by the main chip? (a) runs the program (b) keeps the voltage steady (c) brings power and code (d) restarts the program
3. 3.Which of these usually has a microcontroller inside? (a) a hand pump (b) a toy robot (c) a bicycle bell (d) a wind-up toy
4. 4.🤖 When the main loop of a microcontroller program ends, what happens? (a) it starts again (b) it deletes itself (c) it stops forever (d) the board breaks
5. 5.🧭 Which part of a microcontroller board keeps the voltage steady? (a) the power LED (b) the reset button (c) the voltage regulator (d) the main chip
6. 6.🤖 How does a new program get onto a microcontroller board? (a) uploaded over USB (b) drawn with a pen (c) sent by sound (d) typed on the chip
7. 7.Which of these usually has a microcontroller inside? (a) a candle (b) a wind-up toy (c) a TV remote (d) a spinning top
8. 8.True or false: a laptop has no screen of its own. (a) False (b) True
9. 9.🤖 Does a plain wall switch usually have a microcontroller inside? (a) Yes (b) No
10. 10.True or false: a microwave oven usually has a microcontroller inside. (a) False (b) True
11. 11.🤖 Microcontroller or laptop: which one runs many apps at once? (a) laptop (b) microcontroller
12. 12.True or false: a microcontroller has a built-in keyboard. (a) True (b) False
13. 13.🧭 Which part of a microcontroller board brings power and code? (a) the power LED (b) the pins (c) the main chip (d) the USB port
14. 14.True or false: a digital thermometer has no microcontroller inside. (a) False (b) True
15. 15.🤖 Does a wind-up toy usually have a microcontroller inside? (a) No (b) Yes
16. 16.True or false: a microcontroller runs many apps at once. (a) False (b) True
17. 17.Which of these usually has a microcontroller inside? (a) a bicycle bell (b) a washing machine (c) a candle (d) a wind-up toy
18. 18.True or false: a laptop runs one small program. (a) True (b) False
19. 19.True or false: a candle usually has a microcontroller inside. (a) True (b) False
20. 20.🤖 Microcontroller or laptop: which one runs one small program? (a) microcontroller (b) laptop
21. 21.True or false: a hand pump usually has a microcontroller inside. (a) True (b) False
22. 22.🤖 Where does the board keep its program when the power is off? (a) the USB cable (b) flash memory (c) the power LED (d) the resistor
23. 23.🧭 Which part of a microcontroller board shows the board is on? (a) the power LED (b) the USB port (c) the reset button (d) the pins
24. 24.🤖 Does a candle usually have a microcontroller inside? (a) Yes (b) No
25. 25.🤖 Does a digital thermometer usually have a microcontroller inside? (a) No (b) Yes
26. 26.🤖 Microcontroller or laptop: which one has no screen of its own? (a) laptop (b) microcontroller
27. 27.🧭 Which part of a microcontroller board restarts the program? (a) the pins (b) the reset button (c) the power LED (d) the USB port
28. 28.Which job is done by the USB port? (a) shows the board is on (b) runs the program (c) connect sensors and LEDs (d) brings power and code
29. 29.🤖 Does a hand pump usually have a microcontroller inside? (a) Yes (b) No
30. 30.🤖 Does a TV remote usually have a microcontroller inside? (a) Yes (b) No
31. 31.Which job is done by the reset button? (a) restarts the program (b) connect sensors and LEDs (c) runs the program (d) keeps the voltage steady
32. 32.🤖 Does a microwave oven usually have a microcontroller inside? (a) Yes (b) No
33. 33.🤖 Microcontroller or laptop: which one needs much more power? (a) laptop (b) microcontroller
34. 34.True or false: a laptop uses very little power. (a) True (b) False
35. 35.Which of these has no microcontroller inside? (a) a plain wall switch (b) a TV remote (c) a digital thermometer (d) a toy robot
36. 36.True or false: a candle has no microcontroller inside. (a) True (b) False
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.🤖 Microcontroller or laptop: which one has a built-in keyboard? (a) microcontroller (b) laptop
39. 39.Which of these usually has a microcontroller inside? (a) a hand pump (b) a smart watch (c) a candle (d) a bicycle bell
40. 40.True or false: a toy robot usually has a microcontroller inside. (a) False (b) True

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