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Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 395 · 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.True or false: a laptop needs much more power. (a) True (b) False
  2. 2.True or false: a washing machine usually has a microcontroller inside. (a) True (b) False
  3. 3.🤖 Does a spinning top usually have a microcontroller inside? (a) No (b) Yes
  4. 4.🤖 Does a candle usually have a microcontroller inside? (a) No (b) Yes
  5. 5.🤖 Microcontroller or laptop: which one runs one small program? (a) microcontroller (b) laptop
  6. 6.Which job is done by the reset button? (a) shows the board is on (b) runs the program (c) brings power and code (d) restarts the program
  7. 7.🤖 Microcontroller or laptop: which one has a built-in keyboard? (a) microcontroller (b) laptop
  8. 8.True or false: a microwave oven usually has a microcontroller inside. (a) True (b) False
  9. 9.Which job is done by the power LED? (a) shows the board is on (b) keeps the voltage steady (c) brings power and code (d) restarts the program
  10. 10.🤖 Does a microwave oven usually have a microcontroller inside? (a) No (b) Yes
  11. 11.🧭 Which part of a microcontroller board restarts the program? (a) the voltage regulator (b) the main chip (c) the reset button (d) the pins
  12. 12.True or false: a microcontroller uses very little power. (a) False (b) True
  13. 13.Which job is done by the USB port? (a) runs the program (b) brings power and code (c) connect sensors and LEDs (d) restarts the program
  14. 14.🧭 Which part of a microcontroller board runs the program? (a) the reset button (b) the main chip (c) the voltage regulator (d) the pins
  15. 15.🧭 Which part of a microcontroller board keeps the voltage steady? (a) the USB port (b) the pins (c) the voltage regulator (d) the power LED
  16. 16.Which of these has no microcontroller inside? (a) a digital alarm clock (b) a plain wall switch (c) a washing machine (d) a toy robot
  17. 17.🤖 Microcontroller or laptop: which one runs many apps at once? (a) microcontroller (b) laptop
  18. 18.🤖 Where does the board keep its program when the power is off? (a) the USB cable (b) flash memory (c) the resistor (d) the power LED
  19. 19.True or false: a laptop runs many apps at once. (a) False (b) True
  20. 20.🤖 Microcontroller or laptop: which one uses very little power? (a) laptop (b) microcontroller
  21. 21.True or false: a laptop runs one small program. (a) False (b) True
  22. 22.🧭 Which part of a microcontroller board shows the board is on? (a) the main chip (b) the power LED (c) the voltage regulator (d) the reset button
  23. 23.Which of these usually has a microcontroller inside? (a) a spinning top (b) a candle (c) a bicycle bell (d) a TV remote
  24. 24.Which job is done by the voltage regulator? (a) connect sensors and LEDs (b) restarts the program (c) brings power and code (d) keeps the voltage steady
  25. 25.🤖 Does a TV remote usually have a microcontroller inside? (a) No (b) Yes
  26. 26.🤖 Does a hand pump usually have a microcontroller inside? (a) No (b) Yes
  27. 27.Which of these usually has a microcontroller inside? (a) a hand pump (b) a plain wall switch (c) a candle (d) a toy robot
  28. 28.🤖 Does a digital thermometer usually have a microcontroller inside? (a) Yes (b) No
  29. 29.🤖 Does a smart watch usually have a microcontroller inside? (a) Yes (b) No
  30. 30.🧭 Which part of a microcontroller board connect sensors and LEDs? (a) the pins (b) the voltage regulator (c) the main chip (d) the USB port
  31. 31.True or false: a microcontroller runs one small program. (a) False (b) True
  32. 32.🤖 What is a microcontroller? (a) a kind of bulb (b) a big desktop computer (c) a computer on one chip (d) a type of battery
  33. 33.True or false: a smart watch has no microcontroller inside. (a) False (b) True
  34. 34.True or false: a spinning top has no microcontroller inside. (a) True (b) False
  35. 35.Which job is done by the main chip? (a) brings power and code (b) keeps the voltage steady (c) runs the program (d) restarts the program
  36. 36.Which of these has no microcontroller inside? (a) a digital alarm clock (b) a washing machine (c) a bicycle bell (d) a smart watch
  37. 37.🤖 Which is a safe power source for a beginner microcontroller board? (a) bare mains wires (b) a wall socket directly (c) USB or a 9 V battery (d) a 230 V cable
  38. 38.Which job is done by the pins? (a) keeps the voltage steady (b) restarts the program (c) shows the board is on (d) connect sensors and LEDs
  39. 39.True or false: a digital thermometer usually has a microcontroller inside. (a) True (b) False
  40. 40.Which of these usually has a microcontroller inside? (a) a washing machine (b) a wind-up toy (c) a candle (d) a plain wall switch

Answer key

  1. True
  2. True
  3. No
  4. No
  5. microcontroller
  6. restarts the program
  7. laptop
  8. True
  9. shows the board is on
  10. Yes
  11. the reset button
  12. True
  13. brings power and code
  14. the main chip
  15. the voltage regulator
  16. a plain wall switch
  17. laptop
  18. flash memory
  19. True
  20. microcontroller
  21. False
  22. the power LED
  23. a TV remote
  24. keeps the voltage steady
  25. Yes
  26. No
  27. a toy robot
  28. Yes
  29. Yes
  30. the pins
  31. True
  32. a computer on one chip
  33. False
  34. True
  35. runs the program
  36. a bicycle bell
  37. USB or a 9 V battery
  38. connect sensors and LEDs
  39. True
  40. a washing machine

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