Electronics Worksheet: What Is a Microcontroller

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

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