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Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 318 · 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 needs much more power? (a) microcontroller (b) laptop
  2. 2.🤖 Where does the board keep its program when the power is off? (a) the resistor (b) the power LED (c) flash memory (d) the USB cable
  3. 3.Which of these has no microcontroller inside? (a) a digital alarm clock (b) a toy robot (c) a wind-up toy (d) a microwave oven
  4. 4.🧭 Which part of a microcontroller board brings power and code? (a) the power LED (b) the USB port (c) the reset button (d) the main chip
  5. 5.True or false: a microcontroller runs many apps at once. (a) False (b) True
  6. 6.🤖 How does a new program get onto a microcontroller board? (a) sent by sound (b) typed on the chip (c) drawn with a pen (d) uploaded over USB
  7. 7.Which job is done by the voltage regulator? (a) brings power and code (b) connect sensors and LEDs (c) shows the board is on (d) keeps the voltage steady
  8. 8.🤖 Microcontroller or laptop: which one has a built-in keyboard? (a) laptop (b) microcontroller
  9. 9.True or false: a candle usually has a microcontroller inside. (a) True (b) False
  10. 10.True or false: a microcontroller uses very little power. (a) False (b) True
  11. 11.🤖 Does a plain wall switch usually have a microcontroller inside? (a) Yes (b) No
  12. 12.True or false: a microcontroller needs much more power. (a) True (b) False
  13. 13.True or false: a laptop uses very little power. (a) True (b) False
  14. 14.True or false: a laptop has no screen of its own. (a) True (b) False
  15. 15.🤖 What is a microcontroller? (a) a computer on one chip (b) a type of battery (c) a kind of bulb (d) a big desktop computer
  16. 16.Which job is done by the power LED? (a) connect sensors and LEDs (b) shows the board is on (c) brings power and code (d) restarts the program
  17. 17.Which job is done by the pins? (a) connect sensors and LEDs (b) shows the board is on (c) keeps the voltage steady (d) restarts the program
  18. 18.🤖 Does a hand pump usually have a microcontroller inside? (a) Yes (b) No
  19. 19.🤖 Does a toy robot usually have a microcontroller inside? (a) Yes (b) No
  20. 20.🧭 Which part of a microcontroller board runs the program? (a) the pins (b) the reset button (c) the voltage regulator (d) the main chip
  21. 21.Which of these usually has a microcontroller inside? (a) a bicycle bell (b) a digital alarm clock (c) a hand pump (d) a candle
  22. 22.True or false: a digital thermometer usually has a microcontroller inside. (a) True (b) False
  23. 23.Which of these has no microcontroller inside? (a) a TV remote (b) a spinning top (c) a washing machine (d) a toy robot
  24. 24.True or false: a microcontroller has no screen of its own. (a) False (b) True
  25. 25.Which job is done by the USB port? (a) brings power and code (b) shows the board is on (c) restarts the program (d) keeps the voltage steady
  26. 26.True or false: a spinning top usually has a microcontroller inside. (a) True (b) False
  27. 27.🤖 Does a candle usually have a microcontroller inside? (a) Yes (b) No
  28. 28.True or false: a smart watch has no microcontroller inside. (a) False (b) True
  29. 29.Which of these usually has a microcontroller inside? (a) a digital thermometer (b) a hand pump (c) a spinning top (d) a wind-up toy
  30. 30.True or false: a candle has no microcontroller inside. (a) True (b) False
  31. 31.Which of these has no microcontroller inside? (a) a washing machine (b) a bicycle bell (c) a digital alarm clock (d) a TV remote
  32. 32.🤖 Microcontroller or laptop: which one uses very little power? (a) microcontroller (b) laptop
  33. 33.True or false: a digital alarm clock has no microcontroller inside. (a) True (b) False
  34. 34.🧭 Which part of a microcontroller board connect sensors and LEDs? (a) the USB port (b) the main chip (c) the pins (d) the voltage regulator
  35. 35.True or false: a microcontroller has a built-in keyboard. (a) False (b) True
  36. 36.True or false: a spinning top has no microcontroller inside. (a) True (b) False
  37. 37.True or false: a hand pump usually has a microcontroller inside. (a) False (b) True
  38. 38.🤖 Does a wind-up toy usually have a microcontroller inside? (a) Yes (b) No
  39. 39.True or false: a microwave oven usually has a microcontroller inside. (a) False (b) True
  40. 40.🤖 Does a digital thermometer usually have a microcontroller inside? (a) No (b) Yes

Answer key

  1. laptop
  2. flash memory
  3. a wind-up toy
  4. the USB port
  5. False
  6. uploaded over USB
  7. keeps the voltage steady
  8. laptop
  9. False
  10. True
  11. No
  12. False
  13. False
  14. False
  15. a computer on one chip
  16. shows the board is on
  17. connect sensors and LEDs
  18. No
  19. Yes
  20. the main chip
  21. a digital alarm clock
  22. True
  23. a spinning top
  24. True
  25. brings power and code
  26. False
  27. No
  28. False
  29. a digital thermometer
  30. True
  31. a bicycle bell
  32. microcontroller
  33. False
  34. the pins
  35. False
  36. True
  37. False
  38. No
  39. True
  40. Yes

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