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Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 206 · 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.Which of these usually has a microcontroller inside? (a) a candle (b) a bicycle bell (c) a washing machine (d) a hand pump
  2. 2.🧭 Which part of a microcontroller board connect sensors and LEDs? (a) the pins (b) the USB port (c) the main chip (d) the reset button
  3. 3.Which job is done by the reset button? (a) brings power and code (b) connect sensors and LEDs (c) restarts the program (d) runs the program
  4. 4.True or false: a microcontroller has no screen of its own. (a) False (b) True
  5. 5.Which job is done by the USB port? (a) connect sensors and LEDs (b) keeps the voltage steady (c) restarts the program (d) brings power and code
  6. 6.True or false: a laptop needs much more power. (a) False (b) True
  7. 7.🤖 Microcontroller or laptop: which one has no screen of its own? (a) laptop (b) microcontroller
  8. 8.True or false: a hand pump has no microcontroller inside. (a) False (b) True
  9. 9.🤖 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
  10. 10.Which of these has no microcontroller inside? (a) a digital thermometer (b) a candle (c) a washing machine (d) a toy robot
  11. 11.🤖 Does a smart watch usually have a microcontroller inside? (a) Yes (b) No
  12. 12.Which of these usually has a microcontroller inside? (a) a microwave oven (b) a wind-up toy (c) a hand pump (d) a plain wall switch
  13. 13.🤖 Does a washing machine usually have a microcontroller inside? (a) No (b) Yes
  14. 14.🤖 Microcontroller or laptop: which one runs one small program? (a) laptop (b) microcontroller
  15. 15.True or false: a microcontroller runs one small program. (a) False (b) True
  16. 16.🤖 Does a spinning top usually have a microcontroller inside? (a) No (b) Yes
  17. 17.🤖 Does a wind-up toy usually have a microcontroller inside? (a) Yes (b) No
  18. 18.True or false: a laptop runs one small program. (a) False (b) True
  19. 19.True or false: a laptop has a built-in keyboard. (a) False (b) True
  20. 20.True or false: a wind-up toy has no microcontroller inside. (a) True (b) False
  21. 21.True or false: a microwave oven usually has a microcontroller inside. (a) False (b) True
  22. 22.🤖 How does a new program get onto a microcontroller board? (a) drawn with a pen (b) sent by sound (c) typed on the chip (d) uploaded over USB
  23. 23.🤖 Microcontroller or laptop: which one needs much more power? (a) laptop (b) microcontroller
  24. 24.🤖 Does a bicycle bell usually have a microcontroller inside? (a) No (b) Yes
  25. 25.🤖 Microcontroller or laptop: which one runs many apps at once? (a) microcontroller (b) laptop
  26. 26.True or false: a spinning top usually has a microcontroller inside. (a) True (b) False
  27. 27.Which of these has no microcontroller inside? (a) a washing machine (b) a digital thermometer (c) a smart watch (d) a wind-up toy
  28. 28.🤖 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
  29. 29.True or false: a microcontroller needs much more power. (a) True (b) False
  30. 30.True or false: a laptop has no screen of its own. (a) False (b) True
  31. 31.🤖 Does a TV remote usually have a microcontroller inside? (a) Yes (b) No
  32. 32.Which job is done by the voltage regulator? (a) connect sensors and LEDs (b) shows the board is on (c) runs the program (d) keeps the voltage steady
  33. 33.True or false: a toy robot usually has a microcontroller inside. (a) False (b) True
  34. 34.Which of these has no microcontroller inside? (a) a smart watch (b) a toy robot (c) a hand pump (d) a digital alarm clock
  35. 35.True or false: a laptop runs many apps at once. (a) True (b) False
  36. 36.True or false: a digital thermometer usually has a microcontroller inside. (a) False (b) True
  37. 37.🤖 Microcontroller or laptop: which one uses very little power? (a) microcontroller (b) laptop
  38. 38.Which job is done by the power LED? (a) brings power and code (b) runs the program (c) shows the board is on (d) connect sensors and LEDs
  39. 39.Which of these usually has a microcontroller inside? (a) a wind-up toy (b) a spinning top (c) a plain wall switch (d) a toy robot
  40. 40.True or false: a smart watch has no microcontroller inside. (a) True (b) False

Answer key

  1. a washing machine
  2. the pins
  3. restarts the program
  4. True
  5. brings power and code
  6. True
  7. microcontroller
  8. True
  9. flash memory
  10. a candle
  11. Yes
  12. a microwave oven
  13. Yes
  14. microcontroller
  15. True
  16. No
  17. No
  18. False
  19. True
  20. True
  21. True
  22. uploaded over USB
  23. laptop
  24. No
  25. laptop
  26. False
  27. a wind-up toy
  28. a computer on one chip
  29. False
  30. False
  31. Yes
  32. keeps the voltage steady
  33. True
  34. a hand pump
  35. True
  36. True
  37. microcontroller
  38. shows the board is on
  39. a toy robot
  40. False

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