Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 534 · 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) bare mains wires (b) a 230 V cable (c) USB or a 9 V battery (d) a wall socket directly
2. 2.True or false: a microcontroller runs one small program. (a) True (b) False
3. 3.Which of these usually has a microcontroller inside? (a) a hand pump (b) a wind-up toy (c) a microwave oven (d) a bicycle bell
4. 4.🧭 Which part of a microcontroller board restarts the program? (a) the pins (b) the voltage regulator (c) the power LED (d) the reset button
5. 5.Which of these usually has a microcontroller inside? (a) a hand pump (b) a bicycle bell (c) a plain wall switch (d) a digital thermometer
6. 6.🤖 Does a spinning top usually have a microcontroller inside? (a) Yes (b) No
7. 7.True or false: a laptop has no screen of its own. (a) False (b) True
8. 8.🤖 Does a wind-up toy usually have a microcontroller inside? (a) No (b) Yes
9. 9.🧭 Which part of a microcontroller board brings power and code? (a) the voltage regulator (b) the reset button (c) the power LED (d) the USB port
10. 10.True or false: a hand pump has no microcontroller inside. (a) False (b) True
11. 11.🤖 Microcontroller or laptop: which one has a built-in keyboard? (a) microcontroller (b) laptop
12. 12.True or false: a microwave oven usually has a microcontroller inside. (a) False (b) True
13. 13.🤖 Does a microwave oven usually have a microcontroller inside? (a) Yes (b) No
14. 14.True or false: a spinning top has no microcontroller inside. (a) False (b) True
15. 15.🧭 Which part of a microcontroller board connect sensors and LEDs? (a) the reset button (b) the pins (c) the USB port (d) the power LED
16. 16.🤖 Does a toy robot usually have a microcontroller inside? (a) No (b) Yes
17. 17.🤖 How does a new program get onto a microcontroller board? (a) drawn with a pen (b) typed on the chip (c) uploaded over USB (d) sent by sound
18. 18.🤖 Does a bicycle bell usually have a microcontroller inside? (a) Yes (b) No
19. 19.Which job is done by the voltage regulator? (a) shows the board is on (b) restarts the program (c) brings power and code (d) keeps the voltage steady
20. 20.Which job is done by the USB port? (a) shows the board is on (b) brings power and code (c) runs the program (d) restarts the program
21. 21.Which of these has no microcontroller inside? (a) a microwave oven (b) a spinning top (c) a digital thermometer (d) a toy robot
22. 22.Which of these has no microcontroller inside? (a) a smart watch (b) a plain wall switch (c) a digital thermometer (d) a microwave oven
23. 23.🤖 Does a TV remote usually have a microcontroller inside? (a) No (b) Yes
24. 24.🤖 Does a plain wall switch usually have a microcontroller inside? (a) No (b) Yes
25. 25.True or false: a digital alarm clock usually has a microcontroller inside. (a) False (b) True
26. 26.🤖 What is a microcontroller? (a) a type of battery (b) a big desktop computer (c) a kind of bulb (d) a computer on one chip
27. 27.🤖 Where does the board keep its program when the power is off? (a) the power LED (b) the USB cable (c) the resistor (d) flash memory
28. 28.Which job is done by the reset button? (a) runs the program (b) restarts the program (c) brings power and code (d) keeps the voltage steady
29. 29.Which of these usually has a microcontroller inside? (a) a candle (b) a bicycle bell (c) a TV remote (d) a wind-up toy
30. 30.Which of these has no microcontroller inside? (a) a digital thermometer (b) a wind-up toy (c) a smart watch (d) a digital alarm clock
31. 31.🤖 Microcontroller or laptop: which one uses very little power? (a) laptop (b) microcontroller
32. 32.🧭 Which part of a microcontroller board runs the program? (a) the main chip (b) the voltage regulator (c) the power LED (d) the reset button
33. 33.True or false: a hand pump usually has a microcontroller inside. (a) False (b) True
34. 34.🤖 Microcontroller or laptop: which one needs much more power? (a) microcontroller (b) laptop
35. 35.True or false: a toy robot has no microcontroller inside. (a) True (b) False
36. 36.Which of these usually has a microcontroller inside? (a) a toy robot (b) a plain wall switch (c) a spinning top (d) a bicycle bell
37. 37.🤖 Does a digital alarm clock usually have a microcontroller inside? (a) No (b) Yes
38. 38.True or false: a microcontroller uses very little power. (a) False (b) True
39. 39.True or false: a laptop runs many apps at once. (a) False (b) True
40. 40.Which job is done by the main chip? (a) runs the program (b) brings power and code (c) connect sensors and LEDs (d) shows the board is on

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