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Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 556 · 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.

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

Answer key

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

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