Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 648 · 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 laptop runs one small program. (a) False (b) True
2. 2.True or false: a microwave oven has no microcontroller inside. (a) False (b) True
3. 3.🤖 Does a washing machine usually have a microcontroller inside? (a) No (b) Yes
4. 4.True or false: a laptop runs many apps at once. (a) True (b) False
5. 5.🤖 Does a plain wall switch usually have a microcontroller inside? (a) Yes (b) No
6. 6.🤖 Microcontroller or laptop: which one runs one small program? (a) laptop (b) microcontroller
7. 7.🤖 Does a TV remote usually have a microcontroller inside? (a) No (b) Yes
8. 8.🧭 Which part of a microcontroller board keeps the voltage steady? (a) the reset button (b) the USB port (c) the voltage regulator (d) the pins
9. 9.🤖 Does a hand pump usually have a microcontroller inside? (a) Yes (b) No
10. 10.True or false: a digital alarm clock usually has a microcontroller inside. (a) False (b) True
11. 11.🤖 Where does the board keep its program when the power is off? (a) flash memory (b) the resistor (c) the power LED (d) the USB cable
12. 12.Which job is done by the reset button? (a) connect sensors and LEDs (b) keeps the voltage steady (c) restarts the program (d) brings power and code
13. 13.🤖 Microcontroller or laptop: which one has a built-in keyboard? (a) laptop (b) microcontroller
14. 14.🤖 Does a digital thermometer usually have a microcontroller inside? (a) Yes (b) No
15. 15.Which job is done by the pins? (a) runs the program (b) brings power and code (c) connect sensors and LEDs (d) shows the board is on
16. 16.True or false: a microcontroller needs much more power. (a) True (b) False
17. 17.🤖 Does a wind-up toy usually have a microcontroller inside? (a) Yes (b) No
18. 18.Which job is done by the power LED? (a) runs the program (b) restarts the program (c) shows the board is on (d) keeps the voltage steady
19. 19.🧭 Which part of a microcontroller board connect sensors and LEDs? (a) the voltage regulator (b) the main chip (c) the USB port (d) the pins
20. 20.True or false: a microcontroller runs one small program. (a) True (b) False
21. 21.🤖 Does a microwave oven usually have a microcontroller inside? (a) No (b) Yes
22. 22.🤖 Which is a safe power source for a beginner microcontroller board? (a) a wall socket directly (b) USB or a 9 V battery (c) a 230 V cable (d) bare mains wires
23. 23.🤖 Microcontroller or laptop: which one has no screen of its own? (a) laptop (b) microcontroller
24. 24.🧭 Which part of a microcontroller board brings power and code? (a) the reset button (b) the USB port (c) the voltage regulator (d) the pins
25. 25.Which of these usually has a microcontroller inside? (a) a candle (b) a TV remote (c) a bicycle bell (d) a plain wall switch
26. 26.True or false: a laptop has no screen of its own. (a) True (b) False
27. 27.🧭 Which part of a microcontroller board shows the board is on? (a) the pins (b) the reset button (c) the power LED (d) the USB port
28. 28.Which of these has no microcontroller inside? (a) a smart watch (b) a spinning top (c) a microwave oven (d) a TV remote
29. 29.🤖 How does a new program get onto a microcontroller board? (a) drawn with a pen (b) typed on the chip (c) sent by sound (d) uploaded over USB
30. 30.Which of these usually has a microcontroller inside? (a) a bicycle bell (b) a hand pump (c) a candle (d) a digital thermometer
31. 31.True or false: a laptop needs much more power. (a) True (b) False
32. 32.🧭 Which part of a microcontroller board restarts the program? (a) the reset button (b) the voltage regulator (c) the main chip (d) the pins
33. 33.🤖 When the main loop of a microcontroller program ends, what happens? (a) it deletes itself (b) the board breaks (c) it starts again (d) it stops forever
34. 34.Which of these usually has a microcontroller inside? (a) a hand pump (b) a candle (c) a wind-up toy (d) a microwave oven
35. 35.True or false: a spinning top usually has a microcontroller inside. (a) True (b) False
36. 36.Which job is done by the voltage regulator? (a) runs the program (b) brings power and code (c) keeps the voltage steady (d) shows the board is on
37. 37.Which of these has no microcontroller inside? (a) a digital thermometer (b) a smart watch (c) a wind-up toy (d) a digital alarm clock
38. 38.🤖 Does a candle usually have a microcontroller inside? (a) Yes (b) No
39. 39.Which of these usually has a microcontroller inside? (a) a plain wall switch (b) a wind-up toy (c) a smart watch (d) a candle
40. 40.🤖 Does a smart watch usually have a microcontroller inside? (a) No (b) Yes

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