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Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 135 · 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 job is done by the voltage regulator? (a) brings power and code (b) keeps the voltage steady (c) runs the program (d) shows the board is on
  2. 2.Which of these usually has a microcontroller inside? (a) a microwave oven (b) a candle (c) a plain wall switch (d) a wind-up toy
  3. 3.🤖 Does a microwave oven usually have a microcontroller inside? (a) Yes (b) No
  4. 4.🤖 Microcontroller or laptop: which one has no screen of its own? (a) microcontroller (b) laptop
  5. 5.🤖 Does a smart watch usually have a microcontroller inside? (a) No (b) Yes
  6. 6.🤖 Microcontroller or laptop: which one runs one small program? (a) laptop (b) microcontroller
  7. 7.🧭 Which part of a microcontroller board connect sensors and LEDs? (a) the power LED (b) the reset button (c) the pins (d) the USB port
  8. 8.True or false: a bicycle bell usually has a microcontroller inside. (a) True (b) False
  9. 9.🧭 Which part of a microcontroller board shows the board is on? (a) the reset button (b) the main chip (c) the power LED (d) the USB port
  10. 10.🤖 How does a new program get onto a microcontroller board? (a) drawn with a pen (b) typed on the chip (c) uploaded over USB (d) sent by sound
  11. 11.🤖 Does a digital thermometer usually have a microcontroller inside? (a) No (b) Yes
  12. 12.Which job is done by the main chip? (a) runs the program (b) keeps the voltage steady (c) restarts the program (d) shows the board is on
  13. 13.🧭 Which part of a microcontroller board brings power and code? (a) the USB port (b) the power LED (c) the main chip (d) the pins
  14. 14.🧭 Which part of a microcontroller board runs the program? (a) the reset button (b) the main chip (c) the USB port (d) the pins
  15. 15.Which of these usually has a microcontroller inside? (a) a spinning top (b) a digital thermometer (c) a wind-up toy (d) a hand pump
  16. 16.Which job is done by the reset button? (a) connect sensors and LEDs (b) restarts the program (c) shows the board is on (d) keeps the voltage steady
  17. 17.🤖 Microcontroller or laptop: which one needs much more power? (a) microcontroller (b) laptop
  18. 18.True or false: a wind-up toy has no microcontroller inside. (a) True (b) False
  19. 19.🤖 Does a washing machine usually have a microcontroller inside? (a) Yes (b) No
  20. 20.True or false: a laptop has no screen of its own. (a) False (b) True
  21. 21.True or false: a microcontroller uses very little power. (a) True (b) False
  22. 22.True or false: a laptop runs many apps at once. (a) False (b) True
  23. 23.🤖 Microcontroller or laptop: which one runs many apps at once? (a) laptop (b) microcontroller
  24. 24.🤖 Does a hand pump usually have a microcontroller inside? (a) No (b) Yes
  25. 25.True or false: a laptop runs one small program. (a) True (b) False
  26. 26.Which of these usually has a microcontroller inside? (a) a spinning top (b) a bicycle bell (c) a toy robot (d) a wind-up toy
  27. 27.Which job is done by the power LED? (a) connect sensors and LEDs (b) shows the board is on (c) brings power and code (d) keeps the voltage steady
  28. 28.Which of these has no microcontroller inside? (a) a TV remote (b) a digital alarm clock (c) a toy robot (d) a hand pump
  29. 29.🤖 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
  30. 30.🤖 Microcontroller or laptop: which one has a built-in keyboard? (a) microcontroller (b) laptop
  31. 31.🤖 Does a spinning top usually have a microcontroller inside? (a) No (b) Yes
  32. 32.Which of these has no microcontroller inside? (a) a washing machine (b) a digital alarm clock (c) a spinning top (d) a TV remote
  33. 33.🤖 What is a microcontroller? (a) a type of battery (b) a computer on one chip (c) a big desktop computer (d) a kind of bulb
  34. 34.True or false: a microcontroller runs many apps at once. (a) True (b) False
  35. 35.True or false: a laptop uses very little power. (a) False (b) True
  36. 36.True or false: a washing machine usually has a microcontroller inside. (a) False (b) True
  37. 37.Which job is done by the pins? (a) brings power and code (b) restarts the program (c) runs the program (d) connect sensors and LEDs
  38. 38.True or false: a laptop has a built-in keyboard. (a) True (b) False
  39. 39.🧭 Which part of a microcontroller board keeps the voltage steady? (a) the voltage regulator (b) the power LED (c) the pins (d) the main chip
  40. 40.Which of these usually has a microcontroller inside? (a) a hand pump (b) a bicycle bell (c) a digital alarm clock (d) a wind-up toy

Answer key

  1. keeps the voltage steady
  2. a microwave oven
  3. Yes
  4. microcontroller
  5. Yes
  6. microcontroller
  7. the pins
  8. False
  9. the power LED
  10. uploaded over USB
  11. Yes
  12. runs the program
  13. the USB port
  14. the main chip
  15. a digital thermometer
  16. restarts the program
  17. laptop
  18. True
  19. Yes
  20. False
  21. True
  22. True
  23. laptop
  24. No
  25. False
  26. a toy robot
  27. shows the board is on
  28. a hand pump
  29. it starts again
  30. laptop
  31. No
  32. a spinning top
  33. a computer on one chip
  34. False
  35. False
  36. True
  37. connect sensors and LEDs
  38. True
  39. the voltage regulator
  40. a digital alarm clock

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