Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 46 · 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 of these usually has a microcontroller inside? (a) a plain wall switch (b) a smart watch (c) a wind-up toy (d) a spinning top
2. 2.Which of these has no microcontroller inside? (a) a hand pump (b) a TV remote (c) a washing machine (d) a microwave oven
3. 3.Which of these usually has a microcontroller inside? (a) a candle (b) a spinning top (c) a hand pump (d) a digital alarm clock
4. 4.Which job is done by the voltage regulator? (a) connect sensors and LEDs (b) restarts the program (c) keeps the voltage steady (d) brings power and code
5. 5.Which of these usually has a microcontroller inside? (a) a wind-up toy (b) a candle (c) a TV remote (d) a spinning top
6. 6.🤖 Does a candle usually have a microcontroller inside? (a) No (b) Yes
7. 7.🤖 Does a washing machine usually have a microcontroller inside? (a) Yes (b) No
8. 8.Which of these has no microcontroller inside? (a) a toy robot (b) a bicycle bell (c) a TV remote (d) a digital thermometer
9. 9.🤖 Microcontroller or laptop: which one runs one small program? (a) microcontroller (b) laptop
10. 10.🤖 Microcontroller or laptop: which one needs much more power? (a) laptop (b) microcontroller
11. 11.🧭 Which part of a microcontroller board keeps the voltage steady? (a) the reset button (b) the voltage regulator (c) the pins (d) the USB port
12. 12.True or false: a TV remote usually has a microcontroller inside. (a) False (b) True
13. 13.🤖 Microcontroller or laptop: which one has no screen of its own? (a) laptop (b) microcontroller
14. 14.🧭 Which part of a microcontroller board connect sensors and LEDs? (a) the USB port (b) the main chip (c) the reset button (d) the pins
15. 15.🤖 When the main loop of a microcontroller program ends, what happens? (a) it deletes itself (b) it stops forever (c) it starts again (d) the board breaks
16. 16.True or false: a candle has no microcontroller inside. (a) False (b) True
17. 17.Which of these has no microcontroller inside? (a) a washing machine (b) a microwave oven (c) a wind-up toy (d) a smart watch
18. 18.True or false: a washing machine usually has a microcontroller inside. (a) True (b) False
19. 19.🤖 Microcontroller or laptop: which one uses very little power? (a) microcontroller (b) laptop
20. 20.Which job is done by the power LED? (a) shows the board is on (b) connect sensors and LEDs (c) brings power and code (d) restarts the program
21. 21.True or false: a digital thermometer usually has a microcontroller inside. (a) True (b) False
22. 22.🤖 Does a hand pump usually have a microcontroller inside? (a) No (b) Yes
23. 23.Which job is done by the USB port? (a) brings power and code (b) connect sensors and LEDs (c) runs the program (d) restarts the program
24. 24.Which of these usually has a microcontroller inside? (a) a hand pump (b) a wind-up toy (c) a bicycle bell (d) a microwave oven
25. 25.🧭 Which part of a microcontroller board restarts the program? (a) the main chip (b) the pins (c) the reset button (d) the USB port
26. 26.🧭 Which part of a microcontroller board shows the board is on? (a) the reset button (b) the USB port (c) the main chip (d) the power LED
27. 27.🤖 Does a digital thermometer usually have a microcontroller inside? (a) No (b) Yes
28. 28.Which job is done by the pins? (a) brings power and code (b) connect sensors and LEDs (c) shows the board is on (d) keeps the voltage steady
29. 29.🤖 Does a smart watch usually have a microcontroller inside? (a) Yes (b) No
30. 30.🤖 Where does the board keep its program when the power is off? (a) the USB cable (b) the power LED (c) flash memory (d) the resistor
31. 31.True or false: a laptop has no screen of its own. (a) True (b) False
32. 32.🤖 Does a toy robot usually have a microcontroller inside? (a) No (b) Yes
33. 33.🤖 Microcontroller or laptop: which one runs many apps at once? (a) laptop (b) microcontroller
34. 34.True or false: a microcontroller runs one small program. (a) True (b) False
35. 35.True or false: a bicycle bell usually has a microcontroller inside. (a) True (b) False
36. 36.🧭 Which part of a microcontroller board runs the program? (a) the main chip (b) the USB port (c) the pins (d) the voltage regulator
37. 37.🤖 Which is a safe power source for a beginner microcontroller board? (a) a 230 V cable (b) a wall socket directly (c) USB or a 9 V battery (d) bare mains wires
38. 38.🤖 How does a new program get onto a microcontroller board? (a) drawn with a pen (b) sent by sound (c) typed on the chip (d) uploaded over USB
39. 39.Which of these usually has a microcontroller inside? (a) a spinning top (b) a plain wall switch (c) a wind-up toy (d) a toy robot
40. 40.Which of these usually has a microcontroller inside? (a) a wind-up toy (b) a washing machine (c) a plain wall switch (d) a candle

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