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Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 488 · 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 toy robot has no microcontroller inside. (a) False (b) True
  2. 2.Which of these has no microcontroller inside? (a) a TV remote (b) a spinning top (c) a washing machine (d) a toy robot
  3. 3.🤖 Does a spinning top usually have a microcontroller inside? (a) No (b) Yes
  4. 4.True or false: a bicycle bell usually has a microcontroller inside. (a) True (b) False
  5. 5.🤖 Does a hand pump usually have a microcontroller inside? (a) Yes (b) No
  6. 6.True or false: a plain wall switch usually has a microcontroller inside. (a) False (b) True
  7. 7.🤖 How does a new program get onto a microcontroller board? (a) sent by sound (b) uploaded over USB (c) typed on the chip (d) drawn with a pen
  8. 8.🤖 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
  9. 9.🤖 Where does the board keep its program when the power is off? (a) flash memory (b) the power LED (c) the resistor (d) the USB cable
  10. 10.🤖 Microcontroller or laptop: which one has no screen of its own? (a) laptop (b) microcontroller
  11. 11.🤖 Does a washing machine usually have a microcontroller inside? (a) No (b) Yes
  12. 12.Which job is done by the reset button? (a) connect sensors and LEDs (b) shows the board is on (c) restarts the program (d) runs the program
  13. 13.🤖 Does a candle usually have a microcontroller inside? (a) No (b) Yes
  14. 14.True or false: a digital alarm clock has no microcontroller inside. (a) False (b) True
  15. 15.Which job is done by the power LED? (a) brings power and code (b) restarts the program (c) shows the board is on (d) keeps the voltage steady
  16. 16.True or false: a microcontroller needs much more power. (a) False (b) True
  17. 17.🤖 Microcontroller or laptop: which one has a built-in keyboard? (a) microcontroller (b) laptop
  18. 18.Which of these has no microcontroller inside? (a) a washing machine (b) a wind-up toy (c) a toy robot (d) a microwave oven
  19. 19.Which job is done by the main chip? (a) brings power and code (b) connect sensors and LEDs (c) shows the board is on (d) runs the program
  20. 20.🧭 Which part of a microcontroller board keeps the voltage steady? (a) the voltage regulator (b) the power LED (c) the USB port (d) the main chip
  21. 21.Which of these usually has a microcontroller inside? (a) a candle (b) a hand pump (c) a wind-up toy (d) a microwave oven
  22. 22.True or false: a smart watch has no microcontroller inside. (a) True (b) False
  23. 23.Which of these usually has a microcontroller inside? (a) a spinning top (b) a bicycle bell (c) a candle (d) a digital alarm clock
  24. 24.🤖 Microcontroller or laptop: which one runs many apps at once? (a) microcontroller (b) laptop
  25. 25.True or false: a laptop has no screen of its own. (a) False (b) True
  26. 26.🧭 Which part of a microcontroller board shows the board is on? (a) the USB port (b) the main chip (c) the pins (d) the power LED
  27. 27.True or false: a plain wall switch has no microcontroller inside. (a) False (b) True
  28. 28.True or false: a laptop uses very little power. (a) True (b) False
  29. 29.Which job is done by the voltage regulator? (a) shows the board is on (b) restarts the program (c) keeps the voltage steady (d) brings power and code
  30. 30.🤖 Does a bicycle bell usually have a microcontroller inside? (a) No (b) Yes
  31. 31.🤖 Microcontroller or laptop: which one needs much more power? (a) microcontroller (b) laptop
  32. 32.🧭 Which part of a microcontroller board connect sensors and LEDs? (a) the power LED (b) the pins (c) the reset button (d) the USB port
  33. 33.True or false: a hand pump has no microcontroller inside. (a) False (b) True
  34. 34.True or false: a laptop needs much more power. (a) True (b) False
  35. 35.Which job is done by the USB port? (a) restarts the program (b) runs the program (c) brings power and code (d) shows the board is on
  36. 36.🤖 Microcontroller or laptop: which one runs one small program? (a) microcontroller (b) laptop
  37. 37.True or false: a microcontroller runs many apps at once. (a) False (b) True
  38. 38.Which of these has no microcontroller inside? (a) a candle (b) a smart watch (c) a digital alarm clock (d) a washing machine
  39. 39.🤖 Does a toy robot usually have a microcontroller inside? (a) Yes (b) No
  40. 40.🧭 Which part of a microcontroller board restarts the program? (a) the voltage regulator (b) the USB port (c) the main chip (d) the reset button

Answer key

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

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