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Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 727 · 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 has no screen of its own? (a) microcontroller (b) laptop
  2. 2.Which job is done by the power LED? (a) runs the program (b) shows the board is on (c) keeps the voltage steady (d) connect sensors and LEDs
  3. 3.True or false: a microcontroller needs much more power. (a) False (b) True
  4. 4.Which job is done by the USB port? (a) connect sensors and LEDs (b) runs the program (c) brings power and code (d) keeps the voltage steady
  5. 5.🤖 What is a microcontroller? (a) a big desktop computer (b) a kind of bulb (c) a computer on one chip (d) a type of battery
  6. 6.Which job is done by the main chip? (a) keeps the voltage steady (b) restarts the program (c) brings power and code (d) runs the program
  7. 7.True or false: a toy robot usually has a microcontroller inside. (a) True (b) False
  8. 8.🤖 Microcontroller or laptop: which one runs many apps at once? (a) laptop (b) microcontroller
  9. 9.Which of these usually has a microcontroller inside? (a) a microwave oven (b) a wind-up toy (c) a plain wall switch (d) a candle
  10. 10.🤖 Microcontroller or laptop: which one uses very little power? (a) laptop (b) microcontroller
  11. 11.True or false: a laptop runs one small program. (a) True (b) False
  12. 12.🤖 Does a digital thermometer usually have a microcontroller inside? (a) No (b) Yes
  13. 13.True or false: a microcontroller runs many apps at once. (a) True (b) False
  14. 14.🧭 Which part of a microcontroller board restarts the program? (a) the pins (b) the USB port (c) the main chip (d) the reset button
  15. 15.🧭 Which part of a microcontroller board brings power and code? (a) the reset button (b) the main chip (c) the USB port (d) the pins
  16. 16.Which job is done by the voltage regulator? (a) restarts the program (b) shows the board is on (c) keeps the voltage steady (d) brings power and code
  17. 17.Which of these has no microcontroller inside? (a) a microwave oven (b) a plain wall switch (c) a toy robot (d) a TV remote
  18. 18.🤖 Microcontroller or laptop: which one runs one small program? (a) laptop (b) microcontroller
  19. 19.🤖 Does a plain wall switch usually have a microcontroller inside? (a) Yes (b) No
  20. 20.Which of these usually has a microcontroller inside? (a) a hand pump (b) a wind-up toy (c) a candle (d) a digital alarm clock
  21. 21.🧭 Which part of a microcontroller board shows the board is on? (a) the main chip (b) the power LED (c) the voltage regulator (d) the USB port
  22. 22.True or false: a candle has no microcontroller inside. (a) False (b) True
  23. 23.🧭 Which part of a microcontroller board connect sensors and LEDs? (a) the pins (b) the USB port (c) the reset button (d) the main chip
  24. 24.True or false: a laptop uses very little power. (a) False (b) True
  25. 25.Which job is done by the pins? (a) brings power and code (b) connect sensors and LEDs (c) restarts the program (d) shows the board is on
  26. 26.True or false: a microwave oven usually has a microcontroller inside. (a) True (b) False
  27. 27.Which of these usually has a microcontroller inside? (a) a candle (b) a plain wall switch (c) a TV remote (d) a bicycle bell
  28. 28.🧭 Which part of a microcontroller board runs the program? (a) the USB port (b) the main chip (c) the pins (d) the reset button
  29. 29.Which of these has no microcontroller inside? (a) a smart watch (b) a washing machine (c) a candle (d) a digital thermometer
  30. 30.🤖 Does a candle usually have a microcontroller inside? (a) Yes (b) No
  31. 31.🤖 Where does the board keep its program when the power is off? (a) the resistor (b) flash memory (c) the power LED (d) the USB cable
  32. 32.True or false: a smart watch usually has a microcontroller inside. (a) True (b) False
  33. 33.🤖 Does a wind-up toy usually have a microcontroller inside? (a) Yes (b) No
  34. 34.🧭 Which part of a microcontroller board keeps the voltage steady? (a) the USB port (b) the reset button (c) the pins (d) the voltage regulator
  35. 35.🤖 Does a toy robot usually have a microcontroller inside? (a) Yes (b) No
  36. 36.🤖 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
  37. 37.True or false: a wind-up toy usually has a microcontroller inside. (a) True (b) False
  38. 38.True or false: a microcontroller runs one small program. (a) True (b) False
  39. 39.True or false: a smart watch has no microcontroller inside. (a) True (b) False
  40. 40.🤖 Microcontroller or laptop: which one has a built-in keyboard? (a) microcontroller (b) laptop

Answer key

  1. microcontroller
  2. shows the board is on
  3. False
  4. brings power and code
  5. a computer on one chip
  6. runs the program
  7. True
  8. laptop
  9. a microwave oven
  10. microcontroller
  11. False
  12. Yes
  13. False
  14. the reset button
  15. the USB port
  16. keeps the voltage steady
  17. a plain wall switch
  18. microcontroller
  19. No
  20. a digital alarm clock
  21. the power LED
  22. True
  23. the pins
  24. False
  25. connect sensors and LEDs
  26. True
  27. a TV remote
  28. the main chip
  29. a candle
  30. No
  31. flash memory
  32. True
  33. No
  34. the voltage regulator
  35. Yes
  36. it starts again
  37. False
  38. True
  39. False
  40. laptop

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