Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 650 · 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 microcontroller runs many apps at once. (a) True (b) False
2. 2.🤖 Microcontroller or laptop: which one needs much more power? (a) microcontroller (b) laptop
3. 3.🤖 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
4. 4.🧭 Which part of a microcontroller board brings power and code? (a) the voltage regulator (b) the USB port (c) the main chip (d) the pins
5. 5.Which of these usually has a microcontroller inside? (a) a microwave oven (b) a plain wall switch (c) a hand pump (d) a candle
6. 6.True or false: a laptop uses very little power. (a) True (b) False
7. 7.🤖 Does a plain wall switch usually have a microcontroller inside? (a) Yes (b) No
8. 8.Which job is done by the power LED? (a) shows the board is on (b) restarts the program (c) keeps the voltage steady (d) brings power and code
9. 9.🤖 How does a new program get onto a microcontroller board? (a) sent by sound (b) typed on the chip (c) drawn with a pen (d) uploaded over USB
10. 10.🤖 Does a hand pump usually have a microcontroller inside? (a) No (b) Yes
11. 11.🤖 Does a washing machine usually have a microcontroller inside? (a) Yes (b) No
12. 12.🤖 Does a bicycle bell usually have a microcontroller inside? (a) Yes (b) No
13. 13.Which job is done by the voltage regulator? (a) connect sensors and LEDs (b) keeps the voltage steady (c) brings power and code (d) restarts the program
14. 14.Which of these usually has a microcontroller inside? (a) a spinning top (b) a candle (c) a bicycle bell (d) a digital alarm clock
15. 15.🤖 What is a microcontroller? (a) a computer on one chip (b) a big desktop computer (c) a type of battery (d) a kind of bulb
16. 16.🧭 Which part of a microcontroller board connect sensors and LEDs? (a) the main chip (b) the pins (c) the voltage regulator (d) the reset button
17. 17.True or false: a laptop runs many apps at once. (a) False (b) True
18. 18.🤖 Which is a safe power source for a beginner microcontroller board? (a) bare mains wires (b) a wall socket directly (c) USB or a 9 V battery (d) a 230 V cable
19. 19.🤖 Does a digital alarm clock usually have a microcontroller inside? (a) No (b) Yes
20. 20.🤖 Does a spinning top usually have a microcontroller inside? (a) Yes (b) No
21. 21.🤖 Microcontroller or laptop: which one has no screen of its own? (a) microcontroller (b) laptop
22. 22.🤖 Microcontroller or laptop: which one runs one small program? (a) microcontroller (b) laptop
23. 23.True or false: a digital alarm clock usually has a microcontroller inside. (a) True (b) False
24. 24.Which of these has no microcontroller inside? (a) a hand pump (b) a washing machine (c) a smart watch (d) a digital thermometer
25. 25.🤖 Microcontroller or laptop: which one uses very little power? (a) laptop (b) microcontroller
26. 26.Which of these has no microcontroller inside? (a) a smart watch (b) a microwave oven (c) a spinning top (d) a toy robot
27. 27.True or false: a laptop runs one small program. (a) False (b) True
28. 28.Which of these usually has a microcontroller inside? (a) a spinning top (b) a toy robot (c) a candle (d) a plain wall switch
29. 29.Which of these has no microcontroller inside? (a) a plain wall switch (b) a toy robot (c) a TV remote (d) a washing machine
30. 30.🤖 Does a microwave oven usually have a microcontroller inside? (a) No (b) Yes
31. 31.True or false: a hand pump has no microcontroller inside. (a) False (b) True
32. 32.Which job is done by the USB port? (a) runs the program (b) restarts the program (c) keeps the voltage steady (d) brings power and code
33. 33.Which of these usually has a microcontroller inside? (a) a candle (b) a hand pump (c) a smart watch (d) a wind-up toy
34. 34.Which of these usually has a microcontroller inside? (a) a bicycle bell (b) a TV remote (c) a hand pump (d) a candle
35. 35.🤖 Microcontroller or laptop: which one has a built-in keyboard? (a) microcontroller (b) laptop
36. 36.True or false: a toy robot has no microcontroller inside. (a) False (b) True
37. 37.Which job is done by the main chip? (a) runs the program (b) restarts the program (c) brings power and code (d) keeps the voltage steady
38. 38.🤖 Where does the board keep its program when the power is off? (a) the USB cable (b) the power LED (c) the resistor (d) flash memory
39. 39.True or false: a TV remote usually has a microcontroller inside. (a) True (b) False
40. 40.True or false: a washing machine usually has a microcontroller inside. (a) True (b) False

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