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Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 723 · 40 questions
TalentJR

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.

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

Answer key

  1. a microwave oven
  2. keeps the voltage steady
  3. brings power and code
  4. microcontroller
  5. a wind-up toy
  6. microcontroller
  7. shows the board is on
  8. Yes
  9. False
  10. the main chip
  11. it starts again
  12. a bicycle bell
  13. restarts the program
  14. flash memory
  15. a computer on one chip
  16. a smart watch
  17. a TV remote
  18. False
  19. a candle
  20. microcontroller
  21. a washing machine
  22. USB or a 9 V battery
  23. the USB port
  24. laptop
  25. True
  26. True
  27. True
  28. a digital thermometer
  29. False
  30. laptop
  31. False
  32. the reset button
  33. the pins
  34. No
  35. True
  36. True
  37. laptop
  38. Yes
  39. False
  40. False

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