Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 353 · 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 alarm clock usually have a microcontroller inside? (a) Yes (b) No
2. 2.True or false: a microcontroller runs many apps at once. (a) False (b) True
3. 3.🤖 Does a digital thermometer usually have a microcontroller inside? (a) No (b) Yes
4. 4.True or false: a bicycle bell usually has a microcontroller inside. (a) True (b) False
5. 5.🤖 Microcontroller or laptop: which one uses very little power? (a) microcontroller (b) laptop
6. 6.🧭 Which part of a microcontroller board restarts the program? (a) the reset button (b) the power LED (c) the USB port (d) the main chip
7. 7.🧭 Which part of a microcontroller board runs the program? (a) the power LED (b) the main chip (c) the voltage regulator (d) the reset button
8. 8.True or false: a microwave oven usually has a microcontroller inside. (a) False (b) True
9. 9.🤖 How does a new program get onto a microcontroller board? (a) uploaded over USB (b) drawn with a pen (c) typed on the chip (d) sent by sound
10. 10.🤖 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
11. 11.Which of these usually has a microcontroller inside? (a) a plain wall switch (b) a TV remote (c) a bicycle bell (d) a spinning top
12. 12.🤖 Does a washing machine usually have a microcontroller inside? (a) No (b) Yes
13. 13.🧭 Which part of a microcontroller board keeps the voltage steady? (a) the power LED (b) the voltage regulator (c) the main chip (d) the reset button
14. 14.🤖 Which is a safe power source for a beginner microcontroller board? (a) a wall socket directly (b) a 230 V cable (c) bare mains wires (d) USB or a 9 V battery
15. 15.🤖 Microcontroller or laptop: which one has a built-in keyboard? (a) laptop (b) microcontroller
16. 16.True or false: a candle usually has a microcontroller inside. (a) False (b) True
17. 17.🤖 Does a plain wall switch usually have a microcontroller inside? (a) Yes (b) No
18. 18.True or false: a toy robot usually has a microcontroller inside. (a) True (b) False
19. 19.Which of these has no microcontroller inside? (a) a toy robot (b) a bicycle bell (c) a washing machine (d) a digital thermometer
20. 20.True or false: a digital alarm clock usually has a microcontroller inside. (a) False (b) True
21. 21.🤖 What is a microcontroller? (a) a type of battery (b) a big desktop computer (c) a computer on one chip (d) a kind of bulb
22. 22.🧭 Which part of a microcontroller board shows the board is on? (a) the power LED (b) the reset button (c) the main chip (d) the USB port
23. 23.True or false: a microcontroller uses very little power. (a) False (b) True
24. 24.Which of these usually has a microcontroller inside? (a) a bicycle bell (b) a plain wall switch (c) a hand pump (d) a microwave oven
25. 25.🤖 Microcontroller or laptop: which one needs much more power? (a) laptop (b) microcontroller
26. 26.🧭 Which part of a microcontroller board brings power and code? (a) the main chip (b) the voltage regulator (c) the pins (d) the USB port
27. 27.True or false: a washing machine has no microcontroller inside. (a) False (b) True
28. 28.Which of these usually has a microcontroller inside? (a) a candle (b) a digital thermometer (c) a bicycle bell (d) a wind-up toy
29. 29.True or false: a spinning top usually has a microcontroller inside. (a) False (b) True
30. 30.Which job is done by the voltage regulator? (a) shows the board is on (b) restarts the program (c) keeps the voltage steady (d) connect sensors and LEDs
31. 31.Which of these has no microcontroller inside? (a) a washing machine (b) a toy robot (c) a TV remote (d) a hand pump
32. 32.🤖 Where does the board keep its program when the power is off? (a) the resistor (b) flash memory (c) the USB cable (d) the power LED
33. 33.Which of these usually has a microcontroller inside? (a) a wind-up toy (b) a bicycle bell (c) a washing machine (d) a spinning top
34. 34.Which job is done by the pins? (a) restarts the program (b) runs the program (c) connect sensors and LEDs (d) brings power and code
35. 35.🧭 Which part of a microcontroller board connect sensors and LEDs? (a) the main chip (b) the pins (c) the power LED (d) the USB port
36. 36.Which of these usually has a microcontroller inside? (a) a hand pump (b) a bicycle bell (c) a wind-up toy (d) a toy robot
37. 37.Which job is done by the reset button? (a) keeps the voltage steady (b) runs the program (c) restarts the program (d) connect sensors and LEDs
38. 38.🤖 Microcontroller or laptop: which one runs many apps at once? (a) microcontroller (b) laptop
39. 39.True or false: a smart watch has no microcontroller inside. (a) True (b) False
40. 40.Which of these usually has a microcontroller inside? (a) a digital alarm clock (b) a plain wall switch (c) a hand pump (d) a candle

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