Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 403 · 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.🧭 Which part of a microcontroller board shows the board is on? (a) the reset button (b) the voltage regulator (c) the pins (d) the power LED
2. 2.Which job is done by the main chip? (a) connect sensors and LEDs (b) shows the board is on (c) runs the program (d) brings power and code
3. 3.Which of these usually has a microcontroller inside? (a) a digital thermometer (b) a plain wall switch (c) a hand pump (d) a wind-up toy
4. 4.🤖 How does a new program get onto a microcontroller board? (a) sent by sound (b) typed on the chip (c) uploaded over USB (d) drawn with a pen
5. 5.Which of these has no microcontroller inside? (a) a toy robot (b) a candle (c) a smart watch (d) a microwave oven
6. 6.🤖 When the main loop of a microcontroller program ends, what happens? (a) it stops forever (b) it deletes itself (c) it starts again (d) the board breaks
7. 7.True or false: a microcontroller uses very little power. (a) False (b) True
8. 8.Which of these has no microcontroller inside? (a) a wind-up toy (b) a digital alarm clock (c) a smart watch (d) a digital thermometer
9. 9.🤖 Microcontroller or laptop: which one has a built-in keyboard? (a) laptop (b) microcontroller
10. 10.True or false: a hand pump 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.Which job is done by the power LED? (a) brings power and code (b) connect sensors and LEDs (c) runs the program (d) shows the board is on
13. 13.True or false: a bicycle bell usually has a microcontroller inside. (a) True (b) False
14. 14.🧭 Which part of a microcontroller board connect sensors and LEDs? (a) the main chip (b) the pins (c) the voltage regulator (d) the USB port
15. 15.True or false: a laptop has no screen of its own. (a) False (b) True
16. 16.🤖 Does a spinning top usually have a microcontroller inside? (a) No (b) Yes
17. 17.Which of these usually has a microcontroller inside? (a) a wind-up toy (b) a plain wall switch (c) a TV remote (d) a hand pump
18. 18.🤖 Does a toy robot usually have a microcontroller inside? (a) No (b) Yes
19. 19.🤖 Where does the board keep its program when the power is off? (a) the power LED (b) flash memory (c) the resistor (d) the USB cable
20. 20.True or false: a laptop needs much more power. (a) False (b) True
21. 21.🤖 Which is a safe power source for a beginner microcontroller board? (a) bare mains wires (b) USB or a 9 V battery (c) a wall socket directly (d) a 230 V cable
22. 22.True or false: a microcontroller has no screen of its own. (a) False (b) True
23. 23.🤖 Does a smart watch usually have a microcontroller inside? (a) Yes (b) No
24. 24.True or false: a microcontroller needs much more power. (a) True (b) False
25. 25.Which of these usually has a microcontroller inside? (a) a candle (b) a plain wall switch (c) a washing machine (d) a hand pump
26. 26.True or false: a microcontroller has a built-in keyboard. (a) False (b) True
27. 27.🤖 Does a digital alarm clock usually have a microcontroller inside? (a) Yes (b) No
28. 28.🤖 Microcontroller or laptop: which one uses very little power? (a) microcontroller (b) laptop
29. 29.🧭 Which part of a microcontroller board keeps the voltage steady? (a) the USB port (b) the voltage regulator (c) the power LED (d) the pins
30. 30.Which of these usually has a microcontroller inside? (a) a smart watch (b) a wind-up toy (c) a candle (d) a bicycle bell
31. 31.🤖 Does a wind-up toy usually have a microcontroller inside? (a) Yes (b) No
32. 32.Which of these has no microcontroller inside? (a) a hand pump (b) a microwave oven (c) a TV remote (d) a digital thermometer
33. 33.True or false: a microwave oven has no 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 has no screen of its own? (a) microcontroller (b) laptop
36. 36.True or false: a TV remote has no microcontroller inside. (a) False (b) True
37. 37.True or false: a wind-up toy usually has a microcontroller inside. (a) True (b) False
38. 38.Which of these has no microcontroller inside? (a) a smart watch (b) a digital alarm clock (c) a bicycle bell (d) a washing machine
39. 39.True or false: a spinning top has no microcontroller inside. (a) False (b) True
40. 40.🤖 Does a washing machine usually have a microcontroller inside? (a) No (b) Yes

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