Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 594 · 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 uses very little power. (a) True (b) False
2. 2.🧭 Which part of a microcontroller board shows the board is on? (a) the power LED (b) the main chip (c) the pins (d) the reset button
3. 3.🤖 Does a wind-up toy usually have a microcontroller inside? (a) No (b) Yes
4. 4.🤖 Microcontroller or laptop: which one has no screen of its own? (a) laptop (b) microcontroller
5. 5.🤖 Microcontroller or laptop: which one runs many apps at once? (a) microcontroller (b) laptop
6. 6.True or false: a candle usually has a microcontroller inside. (a) False (b) True
7. 7.Which of these usually has a microcontroller inside? (a) a candle (b) a microwave oven (c) a hand pump (d) a wind-up toy
8. 8.True or false: a smart watch has no microcontroller inside. (a) True (b) False
9. 9.True or false: a laptop needs much more power. (a) False (b) True
10. 10.Which job is done by the main chip? (a) runs the program (b) brings power and code (c) shows the board is on (d) connect sensors and LEDs
11. 11.🤖 How does a new program get onto a microcontroller board? (a) typed on the chip (b) sent by sound (c) drawn with a pen (d) uploaded over USB
12. 12.True or false: a washing machine usually has a microcontroller inside. (a) False (b) True
13. 13.🤖 Microcontroller or laptop: which one uses very little power? (a) laptop (b) microcontroller
14. 14.🧭 Which part of a microcontroller board brings power and code? (a) the USB port (b) the power LED (c) the voltage regulator (d) the reset button
15. 15.Which of these has no microcontroller inside? (a) a smart watch (b) a washing machine (c) a candle (d) a toy robot
16. 16.Which of these usually has a microcontroller inside? (a) a digital thermometer (b) a bicycle bell (c) a candle (d) a hand pump
17. 17.True or false: a digital alarm clock usually has a microcontroller inside. (a) True (b) False
18. 18.🤖 When the main loop of a microcontroller program ends, what happens? (a) it stops forever (b) it starts again (c) it deletes itself (d) the board breaks
19. 19.Which job is done by the USB port? (a) runs the program (b) brings power and code (c) connect sensors and LEDs (d) restarts the program
20. 20.Which of these usually has a microcontroller inside? (a) a washing machine (b) a spinning top (c) a candle (d) a bicycle bell
21. 21.Which job is done by the power LED? (a) restarts the program (b) brings power and code (c) shows the board is on (d) keeps the voltage steady
22. 22.Which of these has no microcontroller inside? (a) a spinning top (b) a washing machine (c) a microwave oven (d) a digital alarm clock
23. 23.True or false: a hand pump usually has a microcontroller inside. (a) False (b) True
24. 24.🤖 Where does the board keep its program when the power is off? (a) the power LED (b) the resistor (c) the USB cable (d) flash memory
25. 25.True or false: a microwave oven has no microcontroller inside. (a) False (b) True
26. 26.🤖 Does a bicycle bell usually have a microcontroller inside? (a) No (b) Yes
27. 27.🤖 Does a candle usually have a microcontroller inside? (a) No (b) Yes
28. 28.True or false: a laptop has a built-in keyboard. (a) True (b) False
29. 29.🤖 Does a toy robot usually have a microcontroller inside? (a) No (b) Yes
30. 30.🤖 Does a digital thermometer usually have a microcontroller inside? (a) No (b) Yes
31. 31.Which of these usually has a microcontroller inside? (a) a hand pump (b) a toy robot (c) a wind-up toy (d) a candle
32. 32.🤖 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
33. 33.True or false: a wind-up toy has no microcontroller inside. (a) False (b) True
34. 34.True or false: a plain wall switch has no microcontroller inside. (a) False (b) True
35. 35.True or false: a plain wall switch usually has a microcontroller inside. (a) False (b) True
36. 36.True or false: a laptop runs one small program. (a) True (b) False
37. 37.Which of these has no microcontroller inside? (a) a digital alarm clock (b) a wind-up toy (c) a toy robot (d) a digital thermometer
38. 38.🤖 Does a washing machine usually have a microcontroller inside? (a) Yes (b) No
39. 39.🤖 Microcontroller or laptop: which one runs one small program? (a) microcontroller (b) laptop
40. 40.Which of these usually has a microcontroller inside? (a) a plain wall switch (b) a smart watch (c) a candle (d) a bicycle bell

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