Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 531 · 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 of these usually has a microcontroller inside? (a) a spinning top (b) a TV remote (c) a hand pump (d) a wind-up toy
2. 2.🤖 Microcontroller or laptop: which one runs many apps at once? (a) microcontroller (b) laptop
3. 3.True or false: a spinning top usually has a microcontroller inside. (a) True (b) False
4. 4.🤖 When the main loop of a microcontroller program ends, what happens? (a) the board breaks (b) it deletes itself (c) it starts again (d) it stops forever
5. 5.🤖 Microcontroller or laptop: which one has no screen of its own? (a) laptop (b) microcontroller
6. 6.True or false: a bicycle bell usually has a microcontroller inside. (a) True (b) False
7. 7.Which of these has no microcontroller inside? (a) a digital thermometer (b) a candle (c) a TV remote (d) a washing machine
8. 8.🤖 How does a new program get onto a microcontroller board? (a) uploaded over USB (b) sent by sound (c) drawn with a pen (d) typed on the chip
9. 9.Which job is done by the main chip? (a) connect sensors and LEDs (b) keeps the voltage steady (c) brings power and code (d) runs the program
10. 10.Which of these has no microcontroller inside? (a) a microwave oven (b) a bicycle bell (c) a TV remote (d) a smart watch
11. 11.🤖 Which is a safe power source for a beginner microcontroller board? (a) USB or a 9 V battery (b) a 230 V cable (c) bare mains wires (d) a wall socket directly
12. 12.Which of these has no microcontroller inside? (a) a TV remote (b) a digital alarm clock (c) a wind-up toy (d) a digital thermometer
13. 13.Which of these usually has a microcontroller inside? (a) a bicycle bell (b) a spinning top (c) a microwave oven (d) a hand pump
14. 14.Which of these has no microcontroller inside? (a) a toy robot (b) a digital alarm clock (c) a hand pump (d) a digital thermometer
15. 15.Which job is done by the voltage regulator? (a) runs the program (b) brings power and code (c) shows the board is on (d) keeps the voltage steady
16. 16.True or false: a toy robot usually has a microcontroller inside. (a) True (b) False
17. 17.Which job is done by the pins? (a) shows the board is on (b) runs the program (c) connect sensors and LEDs (d) brings power and code
18. 18.🧭 Which part of a microcontroller board restarts the program? (a) the USB port (b) the power LED (c) the reset button (d) the main chip
19. 19.True or false: a TV remote usually has a microcontroller inside. (a) False (b) True
20. 20.True or false: a plain wall switch has no microcontroller inside. (a) True (b) False
21. 21.🤖 What is a microcontroller? (a) a type of battery (b) a computer on one chip (c) a big desktop computer (d) a kind of bulb
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.🤖 Does a candle usually have a microcontroller inside? (a) No (b) Yes
24. 24.🤖 Microcontroller or laptop: which one has a built-in keyboard? (a) laptop (b) microcontroller
25. 25.Which job is done by the power LED? (a) shows the board is on (b) runs the program (c) keeps the voltage steady (d) connect sensors and LEDs
26. 26.🧭 Which part of a microcontroller board keeps the voltage steady? (a) the pins (b) the voltage regulator (c) the main chip (d) the power LED
27. 27.Which job is done by the reset button? (a) keeps the voltage steady (b) runs the program (c) restarts the program (d) connect sensors and LEDs
28. 28.🤖 Does a bicycle bell usually have a microcontroller inside? (a) No (b) Yes
29. 29.Which of these usually has a microcontroller inside? (a) a washing machine (b) a hand pump (c) a wind-up toy (d) a plain wall switch
30. 30.🤖 Microcontroller or laptop: which one runs one small program? (a) microcontroller (b) laptop
31. 31.True or false: a laptop needs much more power. (a) False (b) True
32. 32.🤖 Does a hand pump usually have a microcontroller inside? (a) Yes (b) No
33. 33.True or false: a smart watch has no microcontroller inside. (a) False (b) True
34. 34.True or false: a laptop has no screen of its own. (a) True (b) False
35. 35.Which of these usually has a microcontroller inside? (a) a wind-up toy (b) a toy robot (c) a candle (d) a hand pump
36. 36.🤖 Does a wind-up toy usually have a microcontroller inside? (a) No (b) Yes
37. 37.🤖 Microcontroller or laptop: which one uses very little power? (a) microcontroller (b) laptop
38. 38.Which of these usually has a microcontroller inside? (a) a digital alarm clock (b) a plain wall switch (c) a candle (d) a hand pump
39. 39.🤖 Does a TV remote usually have a microcontroller inside? (a) No (b) Yes
40. 40.True or false: a candle usually has a microcontroller inside. (a) False (b) True

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