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Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 406 · 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 a built-in keyboard? (a) laptop (b) microcontroller
  2. 2.True or false: a microcontroller has a built-in keyboard. (a) False (b) True
  3. 3.True or false: a digital alarm clock has no microcontroller inside. (a) True (b) False
  4. 4.Which of these usually has a microcontroller inside? (a) a wind-up toy (b) a spinning top (c) a candle (d) a microwave oven
  5. 5.🤖 Does a spinning top usually have a microcontroller inside? (a) No (b) Yes
  6. 6.🧭 Which part of a microcontroller board connect sensors and LEDs? (a) the voltage regulator (b) the power LED (c) the pins (d) the reset button
  7. 7.🤖 Microcontroller or laptop: which one needs much more power? (a) microcontroller (b) laptop
  8. 8.🤖 Microcontroller or laptop: which one uses very little power? (a) microcontroller (b) laptop
  9. 9.🤖 Microcontroller or laptop: which one runs many apps at once? (a) microcontroller (b) laptop
  10. 10.True or false: a TV remote has no microcontroller inside. (a) False (b) True
  11. 11.True or false: a microcontroller uses very little power. (a) False (b) True
  12. 12.True or false: a digital alarm clock usually has a microcontroller inside. (a) False (b) True
  13. 13.Which job is done by the pins? (a) restarts the program (b) shows the board is on (c) brings power and code (d) connect sensors and LEDs
  14. 14.🤖 Microcontroller or laptop: which one runs one small program? (a) microcontroller (b) laptop
  15. 15.🤖 When the main loop of a microcontroller program ends, what happens? (a) it deletes itself (b) it starts again (c) the board breaks (d) it stops forever
  16. 16.True or false: a laptop runs many apps at once. (a) False (b) True
  17. 17.🤖 Does a washing machine usually have a microcontroller inside? (a) No (b) Yes
  18. 18.Which job is done by the reset button? (a) brings power and code (b) keeps the voltage steady (c) shows the board is on (d) restarts the program
  19. 19.True or false: a microcontroller runs many apps at once. (a) False (b) True
  20. 20.Which job is done by the voltage regulator? (a) runs the program (b) connect sensors and LEDs (c) keeps the voltage steady (d) restarts the program
  21. 21.🤖 Where does the board keep its program when the power is off? (a) the power LED (b) the resistor (c) the USB cable (d) flash memory
  22. 22.True or false: a TV remote usually has a microcontroller inside. (a) False (b) True
  23. 23.🤖 Does a wind-up toy usually have a microcontroller inside? (a) Yes (b) No
  24. 24.True or false: a microcontroller needs much more power. (a) True (b) False
  25. 25.True or false: a spinning top has no microcontroller inside. (a) True (b) False
  26. 26.True or false: a plain wall switch has no microcontroller inside. (a) False (b) True
  27. 27.🧭 Which part of a microcontroller board shows the board is on? (a) the reset button (b) the main chip (c) the power LED (d) the pins
  28. 28.🤖 Microcontroller or laptop: which one has no screen of its own? (a) microcontroller (b) laptop
  29. 29.🤖 Does a smart watch usually have a microcontroller inside? (a) Yes (b) No
  30. 30.Which job is done by the USB port? (a) keeps the voltage steady (b) connect sensors and LEDs (c) brings power and code (d) runs the program
  31. 31.True or false: a laptop has no screen of its own. (a) True (b) False
  32. 32.🧭 Which part of a microcontroller board brings power and code? (a) the USB port (b) the reset button (c) the main chip (d) the voltage regulator
  33. 33.Which of these has no microcontroller inside? (a) a spinning top (b) a toy robot (c) a washing machine (d) a digital alarm clock
  34. 34.🤖 Does a microwave oven usually have a microcontroller inside? (a) Yes (b) No
  35. 35.Which of these usually has a microcontroller inside? (a) a bicycle bell (b) a plain wall switch (c) a wind-up toy (d) a TV remote
  36. 36.True or false: a microcontroller runs one small program. (a) False (b) True
  37. 37.True or false: a microcontroller has no screen of its own. (a) False (b) True
  38. 38.🧭 Which part of a microcontroller board keeps the voltage steady? (a) the voltage regulator (b) the main chip (c) the power LED (d) the USB port
  39. 39.True or false: a laptop runs one small program. (a) True (b) False
  40. 40.True or false: a digital thermometer usually has a microcontroller inside. (a) True (b) False

Answer key

  1. laptop
  2. False
  3. False
  4. a microwave oven
  5. No
  6. the pins
  7. laptop
  8. microcontroller
  9. laptop
  10. False
  11. True
  12. True
  13. connect sensors and LEDs
  14. microcontroller
  15. it starts again
  16. True
  17. Yes
  18. restarts the program
  19. False
  20. keeps the voltage steady
  21. flash memory
  22. True
  23. No
  24. False
  25. True
  26. True
  27. the power LED
  28. microcontroller
  29. Yes
  30. brings power and code
  31. False
  32. the USB port
  33. a spinning top
  34. Yes
  35. a TV remote
  36. True
  37. True
  38. the voltage regulator
  39. False
  40. True

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