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Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 676 · 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) flash memory (b) the power LED (c) the resistor (d) the USB cable
  2. 2.Which of these has no microcontroller inside? (a) a washing machine (b) a plain wall switch (c) a digital alarm clock (d) a microwave oven
  3. 3.🧭 Which part of a microcontroller board runs the program? (a) the pins (b) the main chip (c) the USB port (d) the voltage regulator
  4. 4.🤖 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
  5. 5.True or false: a microcontroller runs one small program. (a) True (b) False
  6. 6.Which of these has no microcontroller inside? (a) a digital alarm clock (b) a toy robot (c) a washing machine (d) a candle
  7. 7.True or false: a laptop runs many apps at once. (a) False (b) True
  8. 8.True or false: a digital thermometer has no microcontroller inside. (a) True (b) False
  9. 9.🤖 Does a microwave oven usually have a microcontroller inside? (a) No (b) Yes
  10. 10.🧭 Which part of a microcontroller board keeps the voltage steady? (a) the main chip (b) the voltage regulator (c) the USB port (d) the reset button
  11. 11.Which of these has no microcontroller inside? (a) a digital alarm clock (b) a TV remote (c) a wind-up toy (d) a toy robot
  12. 12.Which of these usually has a microcontroller inside? (a) a bicycle bell (b) a wind-up toy (c) a candle (d) a microwave oven
  13. 13.🤖 Does a bicycle bell usually have a microcontroller inside? (a) No (b) Yes
  14. 14.Which job is done by the main chip? (a) runs the program (b) shows the board is on (c) restarts the program (d) brings power and code
  15. 15.🤖 Microcontroller or laptop: which one needs much more power? (a) laptop (b) microcontroller
  16. 16.🧭 Which part of a microcontroller board connect sensors and LEDs? (a) the main chip (b) the pins (c) the reset button (d) the USB port
  17. 17.True or false: a microcontroller has a built-in keyboard. (a) False (b) True
  18. 18.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
  19. 19.🧭 Which part of a microcontroller board brings power and code? (a) the power LED (b) the USB port (c) the reset button (d) the pins
  20. 20.True or false: a washing machine has no microcontroller inside. (a) True (b) False
  21. 21.🤖 Microcontroller or laptop: which one has a built-in keyboard? (a) laptop (b) microcontroller
  22. 22.Which job is done by the USB port? (a) keeps the voltage steady (b) brings power and code (c) runs the program (d) restarts the program
  23. 23.True or false: a candle has no microcontroller inside. (a) True (b) False
  24. 24.True or false: a microcontroller needs much more power. (a) True (b) False
  25. 25.🤖 Microcontroller or laptop: which one runs many apps at once? (a) laptop (b) microcontroller
  26. 26.🤖 What is a microcontroller? (a) a big desktop computer (b) a type of battery (c) a kind of bulb (d) a computer on one chip
  27. 27.🤖 Does a candle usually have a microcontroller inside? (a) No (b) Yes
  28. 28.🤖 Microcontroller or laptop: which one runs one small program? (a) microcontroller (b) laptop
  29. 29.True or false: a laptop needs much more power. (a) False (b) True
  30. 30.True or false: a digital thermometer usually has a microcontroller inside. (a) True (b) False
  31. 31.True or false: a laptop uses very little power. (a) False (b) True
  32. 32.Which job is done by the voltage regulator? (a) restarts the program (b) shows the board is on (c) keeps the voltage steady (d) connect sensors and LEDs
  33. 33.🤖 When the main loop of a microcontroller program ends, what happens? (a) the board breaks (b) it stops forever (c) it starts again (d) it deletes itself
  34. 34.🤖 Does a toy robot usually have a microcontroller inside? (a) Yes (b) No
  35. 35.True or false: a microcontroller has no screen of its own. (a) False (b) True
  36. 36.🧭 Which part of a microcontroller board restarts the program? (a) the reset button (b) the power LED (c) the main chip (d) the voltage regulator
  37. 37.🤖 Does a TV remote usually have a microcontroller inside? (a) No (b) Yes
  38. 38.True or false: a washing machine usually has a microcontroller inside. (a) False (b) True
  39. 39.True or false: a laptop has no screen of its own. (a) True (b) False
  40. 40.🤖 Microcontroller or laptop: which one uses very little power? (a) laptop (b) microcontroller

Answer key

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

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