Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 517 · 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.🤖 Does a digital thermometer usually have a microcontroller inside? (a) Yes (b) No
2. 2.True or false: a microcontroller uses very little power. (a) False (b) True
3. 3.True or false: a microwave oven usually has a microcontroller inside. (a) True (b) False
4. 4.🤖 Microcontroller or laptop: which one has a built-in keyboard? (a) laptop (b) microcontroller
5. 5.Which of these has no microcontroller inside? (a) a candle (b) a microwave oven (c) a washing machine (d) a toy robot
6. 6.Which of these has no microcontroller inside? (a) a washing machine (b) a toy robot (c) a wind-up toy (d) a digital alarm clock
7. 7.🤖 Which is a safe power source for a beginner microcontroller board? (a) a 230 V cable (b) a wall socket directly (c) bare mains wires (d) USB or a 9 V battery
8. 8.Which of these usually has a microcontroller inside? (a) a bicycle bell (b) a hand pump (c) a microwave oven (d) a spinning top
9. 9.Which of these usually has a microcontroller inside? (a) a bicycle bell (b) a hand pump (c) a plain wall switch (d) a TV remote
10. 10.🤖 Microcontroller or laptop: which one needs much more power? (a) laptop (b) microcontroller
11. 11.🤖 When the main loop of a microcontroller program ends, what happens? (a) it starts again (b) it deletes itself (c) it stops forever (d) the board breaks
12. 12.Which of these usually has a microcontroller inside? (a) a bicycle bell (b) a candle (c) a digital alarm clock (d) a hand pump
13. 13.Which of these usually has a microcontroller inside? (a) a smart watch (b) a bicycle bell (c) a candle (d) a hand pump
14. 14.🧭 Which part of a microcontroller board runs the program? (a) the pins (b) the main chip (c) the voltage regulator (d) the reset button
15. 15.🤖 Microcontroller or laptop: which one uses very little power? (a) laptop (b) microcontroller
16. 16.Which job is done by the pins? (a) brings power and code (b) keeps the voltage steady (c) restarts the program (d) connect sensors and LEDs
17. 17.True or false: a smart watch usually has a microcontroller inside. (a) False (b) True
18. 18.🤖 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
19. 19.🤖 Does a bicycle bell usually have a microcontroller inside? (a) Yes (b) No
20. 20.Which job is done by the main chip? (a) brings power and code (b) restarts the program (c) runs the program (d) connect sensors and LEDs
21. 21.🤖 Does a washing machine usually have a microcontroller inside? (a) No (b) Yes
22. 22.True or false: a laptop needs much more power. (a) False (b) True
23. 23.True or false: a digital alarm clock has no microcontroller inside. (a) True (b) False
24. 24.🧭 Which part of a microcontroller board restarts the program? (a) the pins (b) the reset button (c) the power LED (d) the USB port
25. 25.🤖 Microcontroller or laptop: which one has no screen of its own? (a) microcontroller (b) laptop
26. 26.True or false: a washing machine usually has a microcontroller inside. (a) True (b) False
27. 27.🤖 Does a wind-up toy usually have a microcontroller inside? (a) No (b) Yes
28. 28.🧭 Which part of a microcontroller board shows the board is on? (a) the main chip (b) the voltage regulator (c) the power LED (d) the pins
29. 29.True or false: a hand pump has no microcontroller inside. (a) True (b) False
30. 30.True or false: a digital thermometer has no microcontroller inside. (a) True (b) False
31. 31.🧭 Which part of a microcontroller board connect sensors and LEDs? (a) the USB port (b) the pins (c) the voltage regulator (d) the reset button
32. 32.🤖 What is a microcontroller? (a) a big desktop computer (b) a kind of bulb (c) a type of battery (d) a computer on one chip
33. 33.🤖 Does a hand pump usually have a microcontroller inside? (a) Yes (b) No
34. 34.🤖 Microcontroller or laptop: which one runs one small program? (a) laptop (b) microcontroller
35. 35.Which job is done by the USB port? (a) restarts the program (b) brings power and code (c) keeps the voltage steady (d) connect sensors and LEDs
36. 36.True or false: a laptop runs many apps at once. (a) False (b) True
37. 37.True or false: a spinning top usually has a microcontroller inside. (a) True (b) False
38. 38.🤖 Does a digital alarm clock usually have a microcontroller inside? (a) Yes (b) No
39. 39.🤖 Where does the board keep its program when the power is off? (a) the USB cable (b) the resistor (c) the power LED (d) flash memory
40. 40.Which of these usually has a microcontroller inside? (a) a wind-up toy (b) a hand pump (c) a bicycle bell (d) a washing machine

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