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Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 344 · 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 microcontroller has no screen of its own. (a) False (b) True
  2. 2.🤖 Does a washing machine usually have a microcontroller inside? (a) No (b) Yes
  3. 3.🤖 Microcontroller or laptop: which one runs one small program? (a) microcontroller (b) laptop
  4. 4.True or false: a microwave oven has no microcontroller inside. (a) False (b) True
  5. 5.Which job is done by the USB port? (a) connect sensors and LEDs (b) brings power and code (c) runs the program (d) shows the board is on
  6. 6.Which of these usually has a microcontroller inside? (a) a candle (b) a digital thermometer (c) a bicycle bell (d) a plain wall switch
  7. 7.🤖 How does a new program get onto a microcontroller board? (a) uploaded over USB (b) sent by sound (c) typed on the chip (d) drawn with a pen
  8. 8.🤖 Microcontroller or laptop: which one runs many apps at once? (a) microcontroller (b) laptop
  9. 9.🤖 When the main loop of a microcontroller program ends, what happens? (a) it deletes itself (b) the board breaks (c) it starts again (d) it stops forever
  10. 10.True or false: a microcontroller runs one small program. (a) True (b) False
  11. 11.True or false: a wind-up toy usually has a microcontroller inside. (a) False (b) True
  12. 12.🧭 Which part of a microcontroller board runs the program? (a) the pins (b) the USB port (c) the voltage regulator (d) the main chip
  13. 13.🤖 Does a hand pump usually have a microcontroller inside? (a) Yes (b) No
  14. 14.🧭 Which part of a microcontroller board brings power and code? (a) the USB port (b) the pins (c) the voltage regulator (d) the power LED
  15. 15.🤖 Where does the board keep its program when the power is off? (a) the power LED (b) the USB cable (c) flash memory (d) the resistor
  16. 16.🧭 Which part of a microcontroller board connect sensors and LEDs? (a) the pins (b) the reset button (c) the USB port (d) the power LED
  17. 17.🤖 What is a microcontroller? (a) a type of battery (b) a big desktop computer (c) a kind of bulb (d) a computer on one chip
  18. 18.🤖 Does a spinning top usually have a microcontroller inside? (a) Yes (b) No
  19. 19.Which of these has no microcontroller inside? (a) a digital thermometer (b) a TV remote (c) a toy robot (d) a candle
  20. 20.Which job is done by the pins? (a) restarts the program (b) brings power and code (c) keeps the voltage steady (d) connect sensors and LEDs
  21. 21.True or false: a microwave oven usually has a microcontroller inside. (a) True (b) False
  22. 22.🧭 Which part of a microcontroller board keeps the voltage steady? (a) the power LED (b) the voltage regulator (c) the pins (d) the main chip
  23. 23.True or false: a candle usually has a microcontroller inside. (a) True (b) False
  24. 24.True or false: a spinning top usually has a microcontroller inside. (a) True (b) False
  25. 25.🤖 Does a digital alarm clock usually have a microcontroller inside? (a) Yes (b) No
  26. 26.🤖 Microcontroller or laptop: which one uses very little power? (a) laptop (b) microcontroller
  27. 27.🧭 Which part of a microcontroller board shows the board is on? (a) the power LED (b) the voltage regulator (c) the pins (d) the reset button
  28. 28.True or false: a bicycle bell has no microcontroller inside. (a) True (b) False
  29. 29.True or false: a plain wall switch usually has a microcontroller inside. (a) False (b) True
  30. 30.🧭 Which part of a microcontroller board restarts the program? (a) the main chip (b) the voltage regulator (c) the reset button (d) the power LED
  31. 31.True or false: a microcontroller runs many apps at once. (a) True (b) False
  32. 32.Which of these usually has a microcontroller inside? (a) a plain wall switch (b) a bicycle bell (c) a candle (d) a smart watch
  33. 33.Which job is done by the reset button? (a) keeps the voltage steady (b) restarts the program (c) connect sensors and LEDs (d) shows the board is on
  34. 34.True or false: a wind-up toy has no microcontroller inside. (a) False (b) True
  35. 35.🤖 Does a plain wall switch usually have a microcontroller inside? (a) Yes (b) No
  36. 36.True or false: a toy robot usually has a microcontroller inside. (a) True (b) False
  37. 37.🤖 Does a TV remote usually have a microcontroller inside? (a) No (b) Yes
  38. 38.Which of these has no microcontroller inside? (a) a washing machine (b) a wind-up toy (c) a digital thermometer (d) a smart watch
  39. 39.Which job is done by the power LED? (a) connect sensors and LEDs (b) brings power and code (c) restarts the program (d) shows the board is on
  40. 40.Which of these usually has a microcontroller inside? (a) a hand pump (b) a candle (c) a plain wall switch (d) a microwave oven

Answer key

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

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