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Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 45 · 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.🤖 Does a digital thermometer usually have a microcontroller inside? (a) No (b) Yes
  2. 2.Which job is done by the pins? (a) restarts the program (b) connect sensors and LEDs (c) shows the board is on (d) brings power and code
  3. 3.🤖 Where does the board keep its program when the power is off? (a) flash memory (b) the resistor (c) the power LED (d) the USB cable
  4. 4.🧭 Which part of a microcontroller board shows the board is on? (a) the voltage regulator (b) the power LED (c) the reset button (d) the pins
  5. 5.🤖 Microcontroller or laptop: which one has no screen of its own? (a) microcontroller (b) laptop
  6. 6.🧭 Which part of a microcontroller board keeps the voltage steady? (a) the main chip (b) the USB port (c) the pins (d) the voltage regulator
  7. 7.Which of these has no microcontroller inside? (a) a smart watch (b) a microwave oven (c) a candle (d) a toy robot
  8. 8.🤖 What is a microcontroller? (a) a computer on one chip (b) a big desktop computer (c) a type of battery (d) a kind of bulb
  9. 9.🤖 Does a spinning top usually have a microcontroller inside? (a) Yes (b) No
  10. 10.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
  11. 11.🤖 Microcontroller or laptop: which one needs much more power? (a) laptop (b) microcontroller
  12. 12.🤖 Does a microwave oven usually have a microcontroller inside? (a) No (b) Yes
  13. 13.🤖 Does a digital alarm clock usually have a microcontroller inside? (a) Yes (b) No
  14. 14.True or false: a bicycle bell has no microcontroller inside. (a) True (b) False
  15. 15.True or false: a laptop needs much more power. (a) True (b) False
  16. 16.Which of these has no microcontroller inside? (a) a microwave oven (b) a washing machine (c) a spinning top (d) a toy robot
  17. 17.True or false: a microcontroller uses very little power. (a) False (b) True
  18. 18.Which of these usually has a microcontroller inside? (a) a plain wall switch (b) a spinning top (c) a smart watch (d) a hand pump
  19. 19.🤖 Does a washing machine usually have a microcontroller inside? (a) Yes (b) No
  20. 20.🧭 Which part of a microcontroller board brings power and code? (a) the power LED (b) the reset button (c) the USB port (d) the pins
  21. 21.True or false: a digital alarm clock usually has a microcontroller inside. (a) False (b) True
  22. 22.🤖 Does a wind-up toy usually have a microcontroller inside? (a) No (b) Yes
  23. 23.🤖 Does a bicycle bell usually have a microcontroller inside? (a) Yes (b) No
  24. 24.Which of these has no microcontroller inside? (a) a smart watch (b) a digital thermometer (c) a plain wall switch (d) a digital alarm clock
  25. 25.Which job is done by the main chip? (a) shows the board is on (b) runs the program (c) brings power and code (d) keeps the voltage steady
  26. 26.True or false: a microcontroller runs many apps at once. (a) True (b) False
  27. 27.🤖 Microcontroller or laptop: which one uses very little power? (a) laptop (b) microcontroller
  28. 28.🤖 Microcontroller or laptop: which one runs many apps at once? (a) microcontroller (b) laptop
  29. 29.Which of these usually has a microcontroller inside? (a) a bicycle bell (b) a wind-up toy (c) a plain wall switch (d) a toy robot
  30. 30.True or false: a wind-up toy usually has a microcontroller inside. (a) True (b) False
  31. 31.True or false: a microcontroller needs much more power. (a) True (b) False
  32. 32.Which job is done by the USB port? (a) restarts the program (b) connect sensors and LEDs (c) runs the program (d) brings power and code
  33. 33.🧭 Which part of a microcontroller board restarts the program? (a) the reset button (b) the pins (c) the power LED (d) the USB port
  34. 34.True or false: a microcontroller has no screen of its own. (a) True (b) False
  35. 35.True or false: a smart watch has no microcontroller inside. (a) False (b) True
  36. 36.🤖 When the main loop of a microcontroller program ends, what happens? (a) it starts again (b) it deletes itself (c) the board breaks (d) it stops forever
  37. 37.🤖 How does a new program get onto a microcontroller board? (a) uploaded over USB (b) typed on the chip (c) sent by sound (d) drawn with a pen
  38. 38.Which of these usually has a microcontroller inside? (a) a spinning top (b) a TV remote (c) a candle (d) a plain wall switch
  39. 39.Which of these usually has a microcontroller inside? (a) a plain wall switch (b) a bicycle bell (c) a candle (d) a microwave oven
  40. 40.🤖 Microcontroller or laptop: which one has a built-in keyboard? (a) laptop (b) microcontroller

Answer key

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

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