Electronics Worksheet: What Is a Microcontroller

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

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