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Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 186 · 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.🤖 Where does the board keep its program when the power is off? (a) the resistor (b) flash memory (c) the USB cable (d) the power LED
  2. 2.🤖 Microcontroller or laptop: which one has a built-in keyboard? (a) laptop (b) microcontroller
  3. 3.🧭 Which part of a microcontroller board runs the program? (a) the reset button (b) the USB port (c) the main chip (d) the power LED
  4. 4.True or false: a digital alarm clock has no microcontroller inside. (a) True (b) False
  5. 5.True or false: a microcontroller has a built-in keyboard. (a) False (b) True
  6. 6.🤖 Does a microwave oven usually have a microcontroller inside? (a) No (b) Yes
  7. 7.Which of these usually has a microcontroller inside? (a) a wind-up toy (b) a spinning top (c) a candle (d) a smart watch
  8. 8.True or false: a bicycle bell usually has a microcontroller inside. (a) False (b) True
  9. 9.🤖 Does a hand pump usually have a microcontroller inside? (a) No (b) Yes
  10. 10.Which of these usually has a microcontroller inside? (a) a hand pump (b) a plain wall switch (c) a microwave oven (d) a wind-up toy
  11. 11.Which of these has no microcontroller inside? (a) a smart watch (b) a wind-up toy (c) a washing machine (d) a digital alarm clock
  12. 12.Which job is done by the USB port? (a) keeps the voltage steady (b) brings power and code (c) connect sensors and LEDs (d) runs the program
  13. 13.🤖 How does a new program get onto a microcontroller board? (a) typed on the chip (b) sent by sound (c) drawn with a pen (d) uploaded over USB
  14. 14.Which job is done by the power LED? (a) runs the program (b) brings power and code (c) keeps the voltage steady (d) shows the board is on
  15. 15.True or false: a microcontroller has no screen of its own. (a) True (b) False
  16. 16.Which job is done by the voltage regulator? (a) connect sensors and LEDs (b) keeps the voltage steady (c) brings power and code (d) restarts the program
  17. 17.🤖 Does a TV remote usually have a microcontroller inside? (a) Yes (b) No
  18. 18.🤖 Microcontroller or laptop: which one has no screen of its own? (a) microcontroller (b) laptop
  19. 19.True or false: a smart watch has no microcontroller inside. (a) False (b) True
  20. 20.🤖 Microcontroller or laptop: which one runs many apps at once? (a) microcontroller (b) laptop
  21. 21.Which job is done by the main chip? (a) shows the board is on (b) runs the program (c) brings power and code (d) connect sensors and LEDs
  22. 22.Which of these usually has a microcontroller inside? (a) a spinning top (b) a toy robot (c) a candle (d) a plain wall switch
  23. 23.🧭 Which part of a microcontroller board connect sensors and LEDs? (a) the USB port (b) the main chip (c) the pins (d) the power LED
  24. 24.Which of these usually has a microcontroller inside? (a) a candle (b) a bicycle bell (c) a wind-up toy (d) a washing machine
  25. 25.🤖 Does a bicycle bell usually have a microcontroller inside? (a) No (b) Yes
  26. 26.🤖 Does a candle usually have a microcontroller inside? (a) No (b) Yes
  27. 27.True or false: a wind-up toy has no microcontroller inside. (a) True (b) False
  28. 28.🤖 Microcontroller or laptop: which one needs much more power? (a) laptop (b) microcontroller
  29. 29.🤖 When the main loop of a microcontroller program ends, what happens? (a) it deletes itself (b) it starts again (c) it stops forever (d) the board breaks
  30. 30.🤖 Does a toy robot usually have a microcontroller inside? (a) Yes (b) No
  31. 31.Which job is done by the pins? (a) brings power and code (b) runs the program (c) connect sensors and LEDs (d) shows the board is on
  32. 32.True or false: a washing machine has no microcontroller inside. (a) False (b) True
  33. 33.Which of these has no microcontroller inside? (a) a washing machine (b) a TV remote (c) a spinning top (d) a digital alarm clock
  34. 34.True or false: a microcontroller uses very little power. (a) True (b) False
  35. 35.🤖 What is a microcontroller? (a) a kind of bulb (b) a type of battery (c) a big desktop computer (d) a computer on one chip
  36. 36.True or false: a laptop uses very little power. (a) False (b) True
  37. 37.True or false: a digital alarm clock usually has a microcontroller inside. (a) False (b) True
  38. 38.Which of these has no microcontroller inside? (a) a bicycle bell (b) a washing machine (c) a TV remote (d) a toy robot
  39. 39.Which of these usually has a microcontroller inside? (a) a plain wall switch (b) a digital alarm clock (c) a spinning top (d) a candle
  40. 40.🤖 Does a digital alarm clock usually have a microcontroller inside? (a) Yes (b) No

Answer key

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

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