Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 483 · 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 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
2. 2.🤖 Does a wind-up toy usually have a microcontroller inside? (a) Yes (b) No
3. 3.🤖 Microcontroller or laptop: which one uses very little power? (a) laptop (b) microcontroller
4. 4.True or false: a smart watch usually has a microcontroller inside. (a) True (b) False
5. 5.🤖 Does a toy robot usually have a microcontroller inside? (a) Yes (b) No
6. 6.🧭 Which part of a microcontroller board keeps the voltage steady? (a) the voltage regulator (b) the pins (c) the USB port (d) the reset button
7. 7.🤖 Microcontroller or laptop: which one runs one small program? (a) laptop (b) microcontroller
8. 8.🧭 Which part of a microcontroller board restarts the program? (a) the USB port (b) the voltage regulator (c) the reset button (d) the power LED
9. 9.True or false: a microcontroller has a built-in keyboard. (a) False (b) True
10. 10.🧭 Which part of a microcontroller board runs the program? (a) the USB port (b) the power LED (c) the reset button (d) the main chip
11. 11.🤖 How does a new program get onto a microcontroller board? (a) typed on the chip (b) uploaded over USB (c) sent by sound (d) drawn with a pen
12. 12.🤖 Does a digital thermometer usually have a microcontroller inside? (a) No (b) Yes
13. 13.🤖 Microcontroller or laptop: which one has no screen of its own? (a) laptop (b) microcontroller
14. 14.🤖 Does a plain wall switch usually have a microcontroller inside? (a) No (b) Yes
15. 15.Which of these usually has a microcontroller inside? (a) a spinning top (b) a microwave oven (c) a plain wall switch (d) a wind-up toy
16. 16.🤖 Microcontroller or laptop: which one has a built-in keyboard? (a) microcontroller (b) laptop
17. 17.Which job is done by the USB port? (a) keeps the voltage steady (b) restarts the program (c) shows the board is on (d) brings power and code
18. 18.🤖 Does a candle usually have a microcontroller inside? (a) Yes (b) No
19. 19.Which of these usually has a microcontroller inside? (a) a bicycle bell (b) a candle (c) a wind-up toy (d) a TV remote
20. 20.🤖 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
21. 21.Which job is done by the main chip? (a) connect sensors and LEDs (b) runs the program (c) brings power and code (d) shows the board is on
22. 22.Which of these has no microcontroller inside? (a) a smart watch (b) a toy robot (c) a washing machine (d) a candle
23. 23.Which job is done by the voltage regulator? (a) runs the program (b) connect sensors and LEDs (c) brings power and code (d) keeps the voltage steady
24. 24.Which job is done by the reset button? (a) brings power and code (b) keeps the voltage steady (c) runs the program (d) restarts the program
25. 25.True or false: a candle usually has a microcontroller inside. (a) False (b) True
26. 26.Which of these usually has a microcontroller inside? (a) a toy robot (b) a hand pump (c) a spinning top (d) a bicycle bell
27. 27.🤖 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
28. 28.True or false: a wind-up toy usually has a microcontroller inside. (a) True (b) False
29. 29.Which job is done by the pins? (a) restarts the program (b) brings power and code (c) shows the board is on (d) connect sensors and LEDs
30. 30.True or false: a microcontroller has no screen of its own. (a) False (b) True
31. 31.🧭 Which part of a microcontroller board connect sensors and LEDs? (a) the pins (b) the USB port (c) the reset button (d) the main chip
32. 32.True or false: a digital alarm clock usually has a microcontroller inside. (a) True (b) False
33. 33.🤖 What is a microcontroller? (a) a type of battery (b) a kind of bulb (c) a computer on one chip (d) a big desktop computer
34. 34.True or false: a spinning top usually has a microcontroller inside. (a) True (b) False
35. 35.🤖 Microcontroller or laptop: which one runs many apps at once? (a) laptop (b) microcontroller
36. 36.🧭 Which part of a microcontroller board brings power and code? (a) the USB port (b) the pins (c) the reset button (d) the voltage regulator
37. 37.🤖 Does a washing machine usually have a microcontroller inside? (a) No (b) Yes
38. 38.Which of these usually has a microcontroller inside? (a) a wind-up toy (b) a plain wall switch (c) a spinning top (d) a smart watch
39. 39.Which of these has no microcontroller inside? (a) a washing machine (b) a toy robot (c) a spinning top (d) a digital thermometer
40. 40.True or false: a toy robot usually has a microcontroller inside. (a) True (b) False

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