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Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 449 · 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.🤖 Microcontroller or laptop: which one uses very little power? (a) laptop (b) microcontroller
  2. 2.Which of these usually has a microcontroller inside? (a) a smart watch (b) a bicycle bell (c) a plain wall switch (d) a candle
  3. 3.True or false: a microcontroller has no screen of its own. (a) False (b) True
  4. 4.🤖 Microcontroller or laptop: which one runs one small program? (a) microcontroller (b) laptop
  5. 5.🤖 Microcontroller or laptop: which one has no screen of its own? (a) laptop (b) microcontroller
  6. 6.Which job is done by the main chip? (a) runs the program (b) connect sensors and LEDs (c) restarts the program (d) keeps the voltage steady
  7. 7.🤖 What is a microcontroller? (a) a kind of bulb (b) a computer on one chip (c) a type of battery (d) a big desktop computer
  8. 8.🤖 How does a new program get onto a microcontroller board? (a) uploaded over USB (b) sent by sound (c) drawn with a pen (d) typed on the chip
  9. 9.🤖 Does a microwave oven usually have a microcontroller inside? (a) Yes (b) No
  10. 10.Which of these has no microcontroller inside? (a) a toy robot (b) a digital alarm clock (c) a candle (d) a microwave oven
  11. 11.True or false: a laptop needs much more power. (a) True (b) False
  12. 12.🧭 Which part of a microcontroller board restarts the program? (a) the pins (b) the voltage regulator (c) the power LED (d) the reset button
  13. 13.Which of these usually has a microcontroller inside? (a) a spinning top (b) a candle (c) a microwave oven (d) a plain wall switch
  14. 14.True or false: a microwave oven has no microcontroller inside. (a) False (b) True
  15. 15.True or false: a laptop uses very little power. (a) False (b) True
  16. 16.🤖 Does a wind-up toy usually have a microcontroller inside? (a) Yes (b) No
  17. 17.🧭 Which part of a microcontroller board brings power and code? (a) the reset button (b) the USB port (c) the power LED (d) the main chip
  18. 18.🤖 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
  19. 19.🧭 Which part of a microcontroller board keeps the voltage steady? (a) the main chip (b) the USB port (c) the voltage regulator (d) the pins
  20. 20.🤖 Does a candle usually have a microcontroller inside? (a) No (b) Yes
  21. 21.True or false: a bicycle bell usually has a microcontroller inside. (a) False (b) True
  22. 22.Which of these usually has a microcontroller inside? (a) a toy robot (b) a bicycle bell (c) a plain wall switch (d) a candle
  23. 23.🤖 Does a spinning top usually have a microcontroller inside? (a) No (b) Yes
  24. 24.True or false: a digital thermometer usually has a microcontroller inside. (a) True (b) False
  25. 25.🤖 Does a TV remote usually have a microcontroller inside? (a) Yes (b) No
  26. 26.True or false: a plain wall switch usually has a microcontroller inside. (a) True (b) False
  27. 27.Which job is done by the USB port? (a) connect sensors and LEDs (b) shows the board is on (c) restarts the program (d) brings power and code
  28. 28.🤖 Microcontroller or laptop: which one has a built-in keyboard? (a) microcontroller (b) laptop
  29. 29.Which of these usually has a microcontroller inside? (a) a digital thermometer (b) a candle (c) a plain wall switch (d) a hand pump
  30. 30.Which job is done by the power LED? (a) keeps the voltage steady (b) runs the program (c) shows the board is on (d) connect sensors and LEDs
  31. 31.True or false: a laptop has a built-in keyboard. (a) True (b) False
  32. 32.True or false: a spinning top has no microcontroller inside. (a) False (b) True
  33. 33.Which job is done by the pins? (a) runs the program (b) restarts the program (c) brings power and code (d) connect sensors and LEDs
  34. 34.True or false: a TV remote has no microcontroller inside. (a) False (b) True
  35. 35.Which of these has no microcontroller inside? (a) a TV remote (b) a hand pump (c) a toy robot (d) a microwave oven
  36. 36.Which of these has no microcontroller inside? (a) a TV remote (b) a microwave oven (c) a toy robot (d) a spinning top
  37. 37.🤖 Does a digital thermometer usually have a microcontroller inside? (a) Yes (b) No
  38. 38.True or false: a laptop runs one small program. (a) True (b) False
  39. 39.🤖 Does a smart watch usually have a microcontroller inside? (a) Yes (b) No
  40. 40.Which job is done by the voltage regulator? (a) connect sensors and LEDs (b) keeps the voltage steady (c) runs the program (d) shows the board is on

Answer key

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

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