Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 376 · 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 has no screen of its own. (a) False (b) True
2. 2.Which of these usually has a microcontroller inside? (a) a plain wall switch (b) a candle (c) a wind-up toy (d) a smart watch
3. 3.🧭 Which part of a microcontroller board runs the program? (a) the pins (b) the voltage regulator (c) the main chip (d) the power LED
4. 4.🤖 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
5. 5.Which of these has no microcontroller inside? (a) a digital alarm clock (b) a plain wall switch (c) a smart watch (d) a TV remote
6. 6.Which of these has no microcontroller inside? (a) a smart watch (b) a toy robot (c) a digital thermometer (d) a bicycle bell
7. 7.🧭 Which part of a microcontroller board brings power and code? (a) the voltage regulator (b) the USB port (c) the power LED (d) the pins
8. 8.🤖 Does a smart watch usually have a microcontroller inside? (a) No (b) Yes
9. 9.🧭 Which part of a microcontroller board shows the board is on? (a) the USB port (b) the pins (c) the main chip (d) the power LED
10. 10.🤖 Does a hand pump usually have a microcontroller inside? (a) Yes (b) No
11. 11.🤖 Microcontroller or laptop: which one runs one small program? (a) microcontroller (b) laptop
12. 12.🤖 Microcontroller or laptop: which one runs many apps at once? (a) laptop (b) microcontroller
13. 13.True or false: a laptop needs much more power. (a) False (b) True
14. 14.Which job is done by the pins? (a) runs the program (b) keeps the voltage steady (c) connect sensors and LEDs (d) restarts the program
15. 15.Which job is done by the power LED? (a) keeps the voltage steady (b) restarts the program (c) connect sensors and LEDs (d) shows the board is on
16. 16.Which of these has no microcontroller inside? (a) a washing machine (b) a spinning top (c) a digital alarm clock (d) a microwave oven
17. 17.True or false: a toy robot usually has a microcontroller inside. (a) True (b) False
18. 18.Which of these usually has a microcontroller inside? (a) a hand pump (b) a bicycle bell (c) a wind-up toy (d) a microwave oven
19. 19.🤖 Does a spinning top usually have a microcontroller inside? (a) No (b) Yes
20. 20.Which of these usually has a microcontroller inside? (a) a hand pump (b) a bicycle bell (c) a washing machine (d) a plain wall switch
21. 21.Which job is done by the reset button? (a) keeps the voltage steady (b) connect sensors and LEDs (c) restarts the program (d) brings power and code
22. 22.🤖 What is a microcontroller? (a) a kind of bulb (b) a type of battery (c) a big desktop computer (d) a computer on one chip
23. 23.Which of these has no microcontroller inside? (a) a TV remote (b) a wind-up toy (c) a toy robot (d) a washing machine
24. 24.🤖 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
25. 25.True or false: a laptop runs one small program. (a) False (b) True
26. 26.🤖 Microcontroller or laptop: which one has no screen of its own? (a) laptop (b) microcontroller
27. 27.🤖 Microcontroller or laptop: which one uses very little power? (a) laptop (b) microcontroller
28. 28.Which of these usually has a microcontroller inside? (a) a plain wall switch (b) a toy robot (c) a wind-up toy (d) a bicycle bell
29. 29.True or false: a TV remote has no microcontroller inside. (a) True (b) False
30. 30.True or false: a spinning top usually has a microcontroller inside. (a) False (b) True
31. 31.🧭 Which part of a microcontroller board restarts the program? (a) the reset button (b) the pins (c) the voltage regulator (d) the power LED
32. 32.Which of these has no microcontroller inside? (a) a hand pump (b) a TV remote (c) a digital thermometer (d) a microwave oven
33. 33.True or false: a microcontroller has a built-in keyboard. (a) True (b) False
34. 34.True or false: a washing machine usually has a microcontroller inside. (a) True (b) False
35. 35.Which of these usually has a microcontroller inside? (a) a hand pump (b) a spinning top (c) a bicycle bell (d) a digital thermometer
36. 36.True or false: a microcontroller has no screen of its own. (a) True (b) False
37. 37.🧭 Which part of a microcontroller board keeps the voltage steady? (a) the USB port (b) the reset button (c) the voltage regulator (d) the main chip
38. 38.True or false: a digital thermometer has no microcontroller inside. (a) True (b) False
39. 39.Which job is done by the main chip? (a) keeps the voltage steady (b) restarts the program (c) runs the program (d) connect sensors and LEDs
40. 40.Which job is done by the voltage regulator? (a) shows the board is on (b) keeps the voltage steady (c) brings power and code (d) runs the program

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