Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 367 · 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 spinning top usually have a microcontroller inside? (a) No (b) Yes
2. 2.🧭 Which part of a microcontroller board brings power and code? (a) the main chip (b) the voltage regulator (c) the USB port (d) the pins
3. 3.🤖 Microcontroller or laptop: which one has no screen of its own? (a) microcontroller (b) laptop
4. 4.Which job is done by the main chip? (a) connect sensors and LEDs (b) runs the program (c) restarts the program (d) brings power and code
5. 5.🤖 What is a microcontroller? (a) a kind of bulb (b) a computer on one chip (c) a big desktop computer (d) a type of battery
6. 6.🤖 How does a new program get onto a microcontroller board? (a) typed on the chip (b) drawn with a pen (c) sent by sound (d) uploaded over USB
7. 7.True or false: a laptop has no screen of its own. (a) True (b) False
8. 8.🧭 Which part of a microcontroller board restarts the program? (a) the USB port (b) the main chip (c) the reset button (d) the pins
9. 9.True or false: a microcontroller has no screen of its own. (a) False (b) True
10. 10.True or false: a digital thermometer usually has a microcontroller inside. (a) False (b) True
11. 11.True or false: a laptop needs much more power. (a) False (b) True
12. 12.Which of these usually has a microcontroller inside? (a) a bicycle bell (b) a microwave oven (c) a spinning top (d) a candle
13. 13.Which of these has no microcontroller inside? (a) a candle (b) a washing machine (c) a microwave oven (d) a smart watch
14. 14.True or false: a microcontroller uses very little power. (a) True (b) False
15. 15.True or false: a laptop runs one small program. (a) True (b) False
16. 16.Which of these usually has a microcontroller inside? (a) a bicycle bell (b) a hand pump (c) a candle (d) a toy robot
17. 17.Which of these has no microcontroller inside? (a) a washing machine (b) a digital thermometer (c) a wind-up toy (d) a microwave oven
18. 18.Which job is done by the USB port? (a) connect sensors and LEDs (b) brings power and code (c) restarts the program (d) shows the board is on
19. 19.Which of these usually has a microcontroller inside? (a) a spinning top (b) a hand pump (c) a plain wall switch (d) a washing machine
20. 20.🤖 Does a hand pump usually have a microcontroller inside? (a) Yes (b) No
21. 21.🤖 Which is a safe power source for a beginner microcontroller board? (a) USB or a 9 V battery (b) a wall socket directly (c) a 230 V cable (d) bare mains wires
22. 22.Which of these usually has a microcontroller inside? (a) a digital alarm clock (b) a plain wall switch (c) a bicycle bell (d) a hand pump
23. 23.True or false: a spinning top has no microcontroller inside. (a) False (b) True
24. 24.🧭 Which part of a microcontroller board connect sensors and LEDs? (a) the pins (b) the voltage regulator (c) the power LED (d) the reset button
25. 25.🤖 Does a digital thermometer usually have a microcontroller inside? (a) No (b) Yes
26. 26.🤖 When the main loop of a microcontroller program ends, what happens? (a) the board breaks (b) it deletes itself (c) it stops forever (d) it starts again
27. 27.Which job is done by the pins? (a) restarts the program (b) connect sensors and LEDs (c) keeps the voltage steady (d) runs the program
28. 28.🧭 Which part of a microcontroller board keeps the voltage steady? (a) the reset button (b) the pins (c) the main chip (d) the voltage regulator
29. 29.Which of these has no microcontroller inside? (a) a hand pump (b) a washing machine (c) a microwave oven (d) a digital thermometer
30. 30.Which job is done by the voltage regulator? (a) brings power and code (b) runs the program (c) keeps the voltage steady (d) connect sensors and LEDs
31. 31.Which of these usually has a microcontroller inside? (a) a wind-up toy (b) a bicycle bell (c) a candle (d) a digital thermometer
32. 32.🤖 Does a wind-up toy usually have a microcontroller inside? (a) No (b) Yes
33. 33.True or false: a hand pump usually has a microcontroller inside. (a) True (b) False
34. 34.🤖 Does a candle usually have a microcontroller inside? (a) Yes (b) No
35. 35.🤖 Microcontroller or laptop: which one uses very little power? (a) microcontroller (b) laptop
36. 36.🤖 Microcontroller or laptop: which one runs many apps at once? (a) microcontroller (b) laptop
37. 37.True or false: a laptop runs many apps at once. (a) True (b) False
38. 38.🤖 Does a washing machine usually have a microcontroller inside? (a) No (b) Yes
39. 39.Which of these usually has a microcontroller inside? (a) a candle (b) a smart watch (c) a hand pump (d) a bicycle bell
40. 40.Which job is done by the reset button? (a) runs the program (b) keeps the voltage steady (c) brings power and code (d) restarts the program

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