Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 384 · 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.🤖 What is a microcontroller? (a) a kind of bulb (b) a type of battery (c) a computer on one chip (d) a big desktop computer
2. 2.🤖 Where does the board keep its program when the power is off? (a) flash memory (b) the power LED (c) the USB cable (d) the resistor
3. 3.Which of these has no microcontroller inside? (a) a candle (b) a digital thermometer (c) a TV remote (d) a smart watch
4. 4.Which of these usually has a microcontroller inside? (a) a hand pump (b) a candle (c) a microwave oven (d) a wind-up toy
5. 5.🤖 Microcontroller or laptop: which one needs much more power? (a) microcontroller (b) laptop
6. 6.🤖 Does a candle usually have a microcontroller inside? (a) Yes (b) No
7. 7.Which of these has no microcontroller inside? (a) a digital thermometer (b) a washing machine (c) a digital alarm clock (d) a bicycle bell
8. 8.🧭 Which part of a microcontroller board connect sensors and LEDs? (a) the power LED (b) the pins (c) the voltage regulator (d) the USB port
9. 9.Which job is done by the reset button? (a) keeps the voltage steady (b) connect sensors and LEDs (c) restarts the program (d) brings power and code
10. 10.Which of these has no microcontroller inside? (a) a toy robot (b) a hand pump (c) a smart watch (d) a microwave oven
11. 11.🤖 Which is a safe power source for a beginner microcontroller board? (a) a 230 V cable (b) bare mains wires (c) a wall socket directly (d) USB or a 9 V battery
12. 12.Which of these usually has a microcontroller inside? (a) a hand pump (b) a candle (c) a TV remote (d) a wind-up toy
13. 13.🤖 Does a digital thermometer usually have a microcontroller inside? (a) Yes (b) No
14. 14.🤖 Microcontroller or laptop: which one uses very little power? (a) laptop (b) microcontroller
15. 15.🧭 Which part of a microcontroller board brings power and code? (a) the pins (b) the voltage regulator (c) the power LED (d) the USB port
16. 16.Which job is done by the main chip? (a) runs the program (b) restarts the program (c) brings power and code (d) shows the board is on
17. 17.🤖 Microcontroller or laptop: which one runs one small program? (a) microcontroller (b) laptop
18. 18.True or false: a washing machine has no microcontroller inside. (a) False (b) True
19. 19.🤖 Does a TV remote usually have a microcontroller inside? (a) No (b) Yes
20. 20.True or false: a laptop runs many apps at once. (a) False (b) True
21. 21.True or false: a bicycle bell usually has a microcontroller inside. (a) True (b) False
22. 22.🤖 Does a plain wall switch usually have a microcontroller inside? (a) No (b) Yes
23. 23.🤖 Does a hand pump usually have a microcontroller inside? (a) Yes (b) No
24. 24.Which of these has no microcontroller inside? (a) a digital thermometer (b) a smart watch (c) a toy robot (d) a spinning top
25. 25.🤖 Microcontroller or laptop: which one runs many apps at once? (a) laptop (b) microcontroller
26. 26.🧭 Which part of a microcontroller board restarts the program? (a) the pins (b) the main chip (c) the reset button (d) the power LED
27. 27.Which of these usually has a microcontroller inside? (a) a plain wall switch (b) a spinning top (c) a bicycle bell (d) a digital thermometer
28. 28.True or false: a toy robot has no microcontroller inside. (a) False (b) True
29. 29.🤖 Does a digital alarm clock usually have a microcontroller inside? (a) Yes (b) No
30. 30.🤖 How does a new program get onto a microcontroller board? (a) sent by sound (b) drawn with a pen (c) uploaded over USB (d) typed on the chip
31. 31.Which of these usually has a microcontroller inside? (a) a candle (b) a digital alarm clock (c) a wind-up toy (d) a plain wall switch
32. 32.True or false: a microcontroller runs many apps at once. (a) True (b) False
33. 33.🧭 Which part of a microcontroller board keeps the voltage steady? (a) the reset button (b) the USB port (c) the voltage regulator (d) the pins
34. 34.True or false: a microcontroller runs one small program. (a) True (b) False
35. 35.Which job is done by the USB port? (a) restarts the program (b) brings power and code (c) connect sensors and LEDs (d) keeps the voltage steady
36. 36.🤖 Does a microwave oven usually have a microcontroller inside? (a) Yes (b) No
37. 37.True or false: a microcontroller uses very little power. (a) False (b) True
38. 38.True or false: a laptop has no screen of its own. (a) False (b) True
39. 39.True or false: a digital thermometer has no microcontroller inside. (a) True (b) False
40. 40.True or false: a microwave oven has no microcontroller inside. (a) True (b) False

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