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Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 165 · 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.True or false: a wind-up toy usually has a microcontroller inside. (a) False (b) True
  2. 2.Which of these has no microcontroller inside? (a) a TV remote (b) a smart watch (c) a plain wall switch (d) a washing machine
  3. 3.🤖 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
  4. 4.🤖 Where does the board keep its program when the power is off? (a) the USB cable (b) flash memory (c) the power LED (d) the resistor
  5. 5.True or false: a microcontroller needs much more power. (a) True (b) False
  6. 6.True or false: a laptop has a built-in keyboard. (a) False (b) True
  7. 7.🤖 Does a digital alarm clock usually have a microcontroller inside? (a) Yes (b) No
  8. 8.🤖 Microcontroller or laptop: which one runs one small program? (a) laptop (b) microcontroller
  9. 9.🤖 Microcontroller or laptop: which one has a built-in keyboard? (a) microcontroller (b) laptop
  10. 10.🤖 Microcontroller or laptop: which one needs much more power? (a) microcontroller (b) laptop
  11. 11.🤖 Does a bicycle bell usually have a microcontroller inside? (a) No (b) Yes
  12. 12.Which job is done by the voltage regulator? (a) shows the board is on (b) connect sensors and LEDs (c) brings power and code (d) keeps the voltage steady
  13. 13.🤖 Does a spinning top usually have a microcontroller inside? (a) No (b) Yes
  14. 14.True or false: a TV remote has no microcontroller inside. (a) True (b) False
  15. 15.🤖 Does a plain wall switch usually have a microcontroller inside? (a) No (b) Yes
  16. 16.🧭 Which part of a microcontroller board restarts the program? (a) the reset button (b) the power LED (c) the USB port (d) the main chip
  17. 17.Which job is done by the pins? (a) runs the program (b) connect sensors and LEDs (c) restarts the program (d) brings power and code
  18. 18.Which job is done by the power LED? (a) shows the board is on (b) keeps the voltage steady (c) restarts the program (d) runs the program
  19. 19.🤖 Does a toy robot usually have a microcontroller inside? (a) Yes (b) No
  20. 20.Which of these usually has a microcontroller inside? (a) a candle (b) a microwave oven (c) a bicycle bell (d) a plain wall switch
  21. 21.🤖 Does a washing machine usually have a microcontroller inside? (a) No (b) Yes
  22. 22.🤖 How does a new program get onto a microcontroller board? (a) drawn with a pen (b) uploaded over USB (c) sent by sound (d) typed on the chip
  23. 23.🤖 Microcontroller or laptop: which one runs many apps at once? (a) microcontroller (b) laptop
  24. 24.True or false: a washing machine has no microcontroller inside. (a) False (b) True
  25. 25.Which job is done by the USB port? (a) keeps the voltage steady (b) restarts the program (c) brings power and code (d) shows the board is on
  26. 26.🧭 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
  27. 27.Which of these usually has a microcontroller inside? (a) a digital alarm clock (b) a candle (c) a plain wall switch (d) a bicycle bell
  28. 28.🤖 When the main loop of a microcontroller program ends, what happens? (a) the board breaks (b) it deletes itself (c) it stops forever (d) it starts again
  29. 29.Which of these has no microcontroller inside? (a) a hand pump (b) a TV remote (c) a washing machine (d) a microwave oven
  30. 30.🧭 Which part of a microcontroller board connect sensors and LEDs? (a) the voltage regulator (b) the power LED (c) the reset button (d) the pins
  31. 31.🧭 Which part of a microcontroller board shows the board is on? (a) the power LED (b) the main chip (c) the USB port (d) the pins
  32. 32.Which of these usually has a microcontroller inside? (a) a wind-up toy (b) a TV remote (c) a spinning top (d) a plain wall switch
  33. 33.True or false: a smart watch has no microcontroller inside. (a) True (b) False
  34. 34.🤖 Microcontroller or laptop: which one uses very little power? (a) microcontroller (b) laptop
  35. 35.🤖 Does a hand pump usually have a microcontroller inside? (a) No (b) Yes
  36. 36.🧭 Which part of a microcontroller board keeps the voltage steady? (a) the USB port (b) the main chip (c) the reset button (d) the voltage regulator
  37. 37.Which of these has no microcontroller inside? (a) a microwave oven (b) a bicycle bell (c) a digital alarm clock (d) a washing machine
  38. 38.True or false: a digital alarm clock has no microcontroller inside. (a) True (b) False
  39. 39.🤖 Microcontroller or laptop: which one has no screen of its own? (a) laptop (b) microcontroller
  40. 40.Which of these usually has a microcontroller inside? (a) a smart watch (b) a spinning top (c) a plain wall switch (d) a bicycle bell

Answer key

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

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